Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * xmlIO.c : implementation of the I/O interfaces used by the parser |
3 | | * |
4 | | * See Copyright for the status of this software. |
5 | | * |
6 | | * daniel@veillard.com |
7 | | * |
8 | | * 14 Nov 2000 ht - for VMS, truncated name of long functions to under 32 char |
9 | | */ |
10 | | |
11 | | #define IN_LIBXML |
12 | | #include "libxml.h" |
13 | | |
14 | | #include <string.h> |
15 | | #include <stdlib.h> |
16 | | #include <errno.h> |
17 | | |
18 | | #ifdef HAVE_SYS_STAT_H |
19 | | #include <sys/stat.h> |
20 | | #endif |
21 | | #ifdef HAVE_FCNTL_H |
22 | | #include <fcntl.h> |
23 | | #endif |
24 | | #ifdef HAVE_UNISTD_H |
25 | | #include <unistd.h> |
26 | | #endif |
27 | | #ifdef LIBXML_ZLIB_ENABLED |
28 | | #include <zlib.h> |
29 | | #endif |
30 | | #ifdef LIBXML_LZMA_ENABLED |
31 | | #include <lzma.h> |
32 | | #endif |
33 | | |
34 | | #if defined(_WIN32) |
35 | | #define WIN32_LEAN_AND_MEAN |
36 | | #include <windows.h> |
37 | | #include <io.h> |
38 | | #include <direct.h> |
39 | | #endif |
40 | | |
41 | | #ifndef S_ISDIR |
42 | | # ifdef _S_ISDIR |
43 | | # define S_ISDIR(x) _S_ISDIR(x) |
44 | | # elif defined(S_IFDIR) |
45 | | # ifdef S_IFMT |
46 | | # define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
47 | | # elif defined(_S_IFMT) |
48 | | # define S_ISDIR(m) (((m) & _S_IFMT) == S_IFDIR) |
49 | | # endif |
50 | | # endif |
51 | | #endif |
52 | | |
53 | | #include <libxml/xmlmemory.h> |
54 | | #include <libxml/parser.h> |
55 | | #include <libxml/parserInternals.h> |
56 | | #include <libxml/xmlIO.h> |
57 | | #include <libxml/uri.h> |
58 | | #include <libxml/nanohttp.h> |
59 | | #include <libxml/nanoftp.h> |
60 | | #include <libxml/xmlerror.h> |
61 | | #ifdef LIBXML_CATALOG_ENABLED |
62 | | #include <libxml/catalog.h> |
63 | | #endif |
64 | | #include <libxml/globals.h> |
65 | | |
66 | | #include "private/buf.h" |
67 | | #include "private/enc.h" |
68 | | #include "private/error.h" |
69 | | #include "private/io.h" |
70 | | #include "private/parser.h" |
71 | | |
72 | | /* #define VERBOSE_FAILURE */ |
73 | | /* #define DEBUG_EXTERNAL_ENTITIES */ |
74 | | /* #define DEBUG_INPUT */ |
75 | | |
76 | | #ifdef DEBUG_INPUT |
77 | | #define MINLEN 40 |
78 | | #else |
79 | 4.72G | #define MINLEN 4000 |
80 | | #endif |
81 | | |
82 | | /* |
83 | | * Input I/O callback sets |
84 | | */ |
85 | | typedef struct _xmlInputCallback { |
86 | | xmlInputMatchCallback matchcallback; |
87 | | xmlInputOpenCallback opencallback; |
88 | | xmlInputReadCallback readcallback; |
89 | | xmlInputCloseCallback closecallback; |
90 | | } xmlInputCallback; |
91 | | |
92 | 24.7k | #define MAX_INPUT_CALLBACK 15 |
93 | | |
94 | | static xmlInputCallback xmlInputCallbackTable[MAX_INPUT_CALLBACK]; |
95 | | static int xmlInputCallbackNr = 0; |
96 | | static int xmlInputCallbackInitialized = 0; |
97 | | |
98 | | #ifdef LIBXML_OUTPUT_ENABLED |
99 | | /* |
100 | | * Output I/O callback sets |
101 | | */ |
102 | | typedef struct _xmlOutputCallback { |
103 | | xmlOutputMatchCallback matchcallback; |
104 | | xmlOutputOpenCallback opencallback; |
105 | | xmlOutputWriteCallback writecallback; |
106 | | xmlOutputCloseCallback closecallback; |
107 | | } xmlOutputCallback; |
108 | | |
109 | 8.25k | #define MAX_OUTPUT_CALLBACK 15 |
110 | | |
111 | | static xmlOutputCallback xmlOutputCallbackTable[MAX_OUTPUT_CALLBACK]; |
112 | | static int xmlOutputCallbackNr = 0; |
113 | | static int xmlOutputCallbackInitialized = 0; |
114 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
115 | | |
116 | | /************************************************************************ |
117 | | * * |
118 | | * Tree memory error handler * |
119 | | * * |
120 | | ************************************************************************/ |
121 | | |
122 | | static const char* const IOerr[] = { |
123 | | "Unknown IO error", /* UNKNOWN */ |
124 | | "Permission denied", /* EACCES */ |
125 | | "Resource temporarily unavailable",/* EAGAIN */ |
126 | | "Bad file descriptor", /* EBADF */ |
127 | | "Bad message", /* EBADMSG */ |
128 | | "Resource busy", /* EBUSY */ |
129 | | "Operation canceled", /* ECANCELED */ |
130 | | "No child processes", /* ECHILD */ |
131 | | "Resource deadlock avoided",/* EDEADLK */ |
132 | | "Domain error", /* EDOM */ |
133 | | "File exists", /* EEXIST */ |
134 | | "Bad address", /* EFAULT */ |
135 | | "File too large", /* EFBIG */ |
136 | | "Operation in progress", /* EINPROGRESS */ |
137 | | "Interrupted function call",/* EINTR */ |
138 | | "Invalid argument", /* EINVAL */ |
139 | | "Input/output error", /* EIO */ |
140 | | "Is a directory", /* EISDIR */ |
141 | | "Too many open files", /* EMFILE */ |
142 | | "Too many links", /* EMLINK */ |
143 | | "Inappropriate message buffer length",/* EMSGSIZE */ |
144 | | "Filename too long", /* ENAMETOOLONG */ |
145 | | "Too many open files in system",/* ENFILE */ |
146 | | "No such device", /* ENODEV */ |
147 | | "No such file or directory",/* ENOENT */ |
148 | | "Exec format error", /* ENOEXEC */ |
149 | | "No locks available", /* ENOLCK */ |
150 | | "Not enough space", /* ENOMEM */ |
151 | | "No space left on device", /* ENOSPC */ |
152 | | "Function not implemented", /* ENOSYS */ |
153 | | "Not a directory", /* ENOTDIR */ |
154 | | "Directory not empty", /* ENOTEMPTY */ |
155 | | "Not supported", /* ENOTSUP */ |
156 | | "Inappropriate I/O control operation",/* ENOTTY */ |
157 | | "No such device or address",/* ENXIO */ |
158 | | "Operation not permitted", /* EPERM */ |
159 | | "Broken pipe", /* EPIPE */ |
160 | | "Result too large", /* ERANGE */ |
161 | | "Read-only file system", /* EROFS */ |
162 | | "Invalid seek", /* ESPIPE */ |
163 | | "No such process", /* ESRCH */ |
164 | | "Operation timed out", /* ETIMEDOUT */ |
165 | | "Improper link", /* EXDEV */ |
166 | | "Attempt to load network entity %s", /* XML_IO_NETWORK_ATTEMPT */ |
167 | | "encoder error", /* XML_IO_ENCODER */ |
168 | | "flush error", |
169 | | "write error", |
170 | | "no input", |
171 | | "buffer full", |
172 | | "loading error", |
173 | | "not a socket", /* ENOTSOCK */ |
174 | | "already connected", /* EISCONN */ |
175 | | "connection refused", /* ECONNREFUSED */ |
176 | | "unreachable network", /* ENETUNREACH */ |
177 | | "address in use", /* EADDRINUSE */ |
178 | | "already in use", /* EALREADY */ |
179 | | "unknown address family", /* EAFNOSUPPORT */ |
180 | | }; |
181 | | |
182 | | #if defined(_WIN32) |
183 | | /** |
184 | | * __xmlIOWin32UTF8ToWChar: |
185 | | * @u8String: uft-8 string |
186 | | * |
187 | | * Convert a string from utf-8 to wchar (WINDOWS ONLY!) |
188 | | */ |
189 | | static wchar_t * |
190 | | __xmlIOWin32UTF8ToWChar(const char *u8String) |
191 | | { |
192 | | wchar_t *wString = NULL; |
193 | | |
194 | | if (u8String) { |
195 | | int wLen = |
196 | | MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, u8String, |
197 | | -1, NULL, 0); |
198 | | if (wLen) { |
199 | | wString = xmlMalloc(wLen * sizeof(wchar_t)); |
200 | | if (wString) { |
201 | | if (MultiByteToWideChar |
202 | | (CP_UTF8, 0, u8String, -1, wString, wLen) == 0) { |
203 | | xmlFree(wString); |
204 | | wString = NULL; |
205 | | } |
206 | | } |
207 | | } |
208 | | } |
209 | | |
210 | | return wString; |
211 | | } |
212 | | #endif |
213 | | |
214 | | /** |
215 | | * xmlIOErrMemory: |
216 | | * @extra: extra information |
217 | | * |
218 | | * Handle an out of memory condition |
219 | | */ |
220 | | static void |
221 | | xmlIOErrMemory(const char *extra) |
222 | 0 | { |
223 | 0 | __xmlSimpleError(XML_FROM_IO, XML_ERR_NO_MEMORY, NULL, NULL, extra); |
224 | 0 | } |
225 | | |
226 | | /** |
227 | | * __xmlIOErr: |
228 | | * @code: the error number |
229 | | * @ |
230 | | * @extra: extra information |
231 | | * |
232 | | * Handle an I/O error |
233 | | */ |
234 | | void |
235 | | __xmlIOErr(int domain, int code, const char *extra) |
236 | 10.5k | { |
237 | 10.5k | unsigned int idx; |
238 | | |
239 | 10.5k | if (code == 0) { |
240 | 0 | if (errno == 0) code = 0; |
241 | 0 | #ifdef EACCES |
242 | 0 | else if (errno == EACCES) code = XML_IO_EACCES; |
243 | 0 | #endif |
244 | 0 | #ifdef EAGAIN |
245 | 0 | else if (errno == EAGAIN) code = XML_IO_EAGAIN; |
246 | 0 | #endif |
247 | 0 | #ifdef EBADF |
248 | 0 | else if (errno == EBADF) code = XML_IO_EBADF; |
249 | 0 | #endif |
250 | 0 | #ifdef EBADMSG |
251 | 0 | else if (errno == EBADMSG) code = XML_IO_EBADMSG; |
252 | 0 | #endif |
253 | 0 | #ifdef EBUSY |
254 | 0 | else if (errno == EBUSY) code = XML_IO_EBUSY; |
255 | 0 | #endif |
256 | 0 | #ifdef ECANCELED |
257 | 0 | else if (errno == ECANCELED) code = XML_IO_ECANCELED; |
258 | 0 | #endif |
259 | 0 | #ifdef ECHILD |
260 | 0 | else if (errno == ECHILD) code = XML_IO_ECHILD; |
261 | 0 | #endif |
262 | 0 | #ifdef EDEADLK |
263 | 0 | else if (errno == EDEADLK) code = XML_IO_EDEADLK; |
264 | 0 | #endif |
265 | 0 | #ifdef EDOM |
266 | 0 | else if (errno == EDOM) code = XML_IO_EDOM; |
267 | 0 | #endif |
268 | 0 | #ifdef EEXIST |
269 | 0 | else if (errno == EEXIST) code = XML_IO_EEXIST; |
270 | 0 | #endif |
271 | 0 | #ifdef EFAULT |
272 | 0 | else if (errno == EFAULT) code = XML_IO_EFAULT; |
273 | 0 | #endif |
274 | 0 | #ifdef EFBIG |
275 | 0 | else if (errno == EFBIG) code = XML_IO_EFBIG; |
276 | 0 | #endif |
277 | 0 | #ifdef EINPROGRESS |
278 | 0 | else if (errno == EINPROGRESS) code = XML_IO_EINPROGRESS; |
279 | 0 | #endif |
280 | 0 | #ifdef EINTR |
281 | 0 | else if (errno == EINTR) code = XML_IO_EINTR; |
282 | 0 | #endif |
283 | 0 | #ifdef EINVAL |
284 | 0 | else if (errno == EINVAL) code = XML_IO_EINVAL; |
285 | 0 | #endif |
286 | 0 | #ifdef EIO |
287 | 0 | else if (errno == EIO) code = XML_IO_EIO; |
288 | 0 | #endif |
289 | 0 | #ifdef EISDIR |
290 | 0 | else if (errno == EISDIR) code = XML_IO_EISDIR; |
291 | 0 | #endif |
292 | 0 | #ifdef EMFILE |
293 | 0 | else if (errno == EMFILE) code = XML_IO_EMFILE; |
294 | 0 | #endif |
295 | 0 | #ifdef EMLINK |
296 | 0 | else if (errno == EMLINK) code = XML_IO_EMLINK; |
297 | 0 | #endif |
298 | 0 | #ifdef EMSGSIZE |
299 | 0 | else if (errno == EMSGSIZE) code = XML_IO_EMSGSIZE; |
300 | 0 | #endif |
301 | 0 | #ifdef ENAMETOOLONG |
302 | 0 | else if (errno == ENAMETOOLONG) code = XML_IO_ENAMETOOLONG; |
303 | 0 | #endif |
304 | 0 | #ifdef ENFILE |
305 | 0 | else if (errno == ENFILE) code = XML_IO_ENFILE; |
306 | 0 | #endif |
307 | 0 | #ifdef ENODEV |
308 | 0 | else if (errno == ENODEV) code = XML_IO_ENODEV; |
309 | 0 | #endif |
310 | 0 | #ifdef ENOENT |
311 | 0 | else if (errno == ENOENT) code = XML_IO_ENOENT; |
312 | 0 | #endif |
313 | 0 | #ifdef ENOEXEC |
314 | 0 | else if (errno == ENOEXEC) code = XML_IO_ENOEXEC; |
315 | 0 | #endif |
316 | 0 | #ifdef ENOLCK |
317 | 0 | else if (errno == ENOLCK) code = XML_IO_ENOLCK; |
318 | 0 | #endif |
319 | 0 | #ifdef ENOMEM |
320 | 0 | else if (errno == ENOMEM) code = XML_IO_ENOMEM; |
321 | 0 | #endif |
322 | 0 | #ifdef ENOSPC |
323 | 0 | else if (errno == ENOSPC) code = XML_IO_ENOSPC; |
324 | 0 | #endif |
325 | 0 | #ifdef ENOSYS |
326 | 0 | else if (errno == ENOSYS) code = XML_IO_ENOSYS; |
327 | 0 | #endif |
328 | 0 | #ifdef ENOTDIR |
329 | 0 | else if (errno == ENOTDIR) code = XML_IO_ENOTDIR; |
330 | 0 | #endif |
331 | 0 | #ifdef ENOTEMPTY |
332 | 0 | else if (errno == ENOTEMPTY) code = XML_IO_ENOTEMPTY; |
333 | 0 | #endif |
334 | 0 | #ifdef ENOTSUP |
335 | 0 | else if (errno == ENOTSUP) code = XML_IO_ENOTSUP; |
336 | 0 | #endif |
337 | 0 | #ifdef ENOTTY |
338 | 0 | else if (errno == ENOTTY) code = XML_IO_ENOTTY; |
339 | 0 | #endif |
340 | 0 | #ifdef ENXIO |
341 | 0 | else if (errno == ENXIO) code = XML_IO_ENXIO; |
342 | 0 | #endif |
343 | 0 | #ifdef EPERM |
344 | 0 | else if (errno == EPERM) code = XML_IO_EPERM; |
345 | 0 | #endif |
346 | 0 | #ifdef EPIPE |
347 | 0 | else if (errno == EPIPE) code = XML_IO_EPIPE; |
348 | 0 | #endif |
349 | 0 | #ifdef ERANGE |
350 | 0 | else if (errno == ERANGE) code = XML_IO_ERANGE; |
351 | 0 | #endif |
352 | 0 | #ifdef EROFS |
353 | 0 | else if (errno == EROFS) code = XML_IO_EROFS; |
354 | 0 | #endif |
355 | 0 | #ifdef ESPIPE |
356 | 0 | else if (errno == ESPIPE) code = XML_IO_ESPIPE; |
357 | 0 | #endif |
358 | 0 | #ifdef ESRCH |
359 | 0 | else if (errno == ESRCH) code = XML_IO_ESRCH; |
360 | 0 | #endif |
361 | 0 | #ifdef ETIMEDOUT |
362 | 0 | else if (errno == ETIMEDOUT) code = XML_IO_ETIMEDOUT; |
363 | 0 | #endif |
364 | 0 | #ifdef EXDEV |
365 | 0 | else if (errno == EXDEV) code = XML_IO_EXDEV; |
366 | 0 | #endif |
367 | 0 | #ifdef ENOTSOCK |
368 | 0 | else if (errno == ENOTSOCK) code = XML_IO_ENOTSOCK; |
369 | 0 | #endif |
370 | 0 | #ifdef EISCONN |
371 | 0 | else if (errno == EISCONN) code = XML_IO_EISCONN; |
372 | 0 | #endif |
373 | 0 | #ifdef ECONNREFUSED |
374 | 0 | else if (errno == ECONNREFUSED) code = XML_IO_ECONNREFUSED; |
375 | 0 | #endif |
376 | 0 | #ifdef ETIMEDOUT |
377 | 0 | else if (errno == ETIMEDOUT) code = XML_IO_ETIMEDOUT; |
378 | 0 | #endif |
379 | 0 | #ifdef ENETUNREACH |
380 | 0 | else if (errno == ENETUNREACH) code = XML_IO_ENETUNREACH; |
381 | 0 | #endif |
382 | 0 | #ifdef EADDRINUSE |
383 | 0 | else if (errno == EADDRINUSE) code = XML_IO_EADDRINUSE; |
384 | 0 | #endif |
385 | 0 | #ifdef EINPROGRESS |
386 | 0 | else if (errno == EINPROGRESS) code = XML_IO_EINPROGRESS; |
387 | 0 | #endif |
388 | 0 | #ifdef EALREADY |
389 | 0 | else if (errno == EALREADY) code = XML_IO_EALREADY; |
390 | 0 | #endif |
391 | 0 | #ifdef EAFNOSUPPORT |
392 | 0 | else if (errno == EAFNOSUPPORT) code = XML_IO_EAFNOSUPPORT; |
393 | 0 | #endif |
394 | 0 | else code = XML_IO_UNKNOWN; |
395 | 0 | } |
396 | 10.5k | idx = 0; |
397 | 10.5k | if (code >= XML_IO_UNKNOWN) idx = code - XML_IO_UNKNOWN; |
398 | 10.5k | if (idx >= (sizeof(IOerr) / sizeof(IOerr[0]))) idx = 0; |
399 | | |
400 | 10.5k | __xmlSimpleError(domain, code, NULL, IOerr[idx], extra); |
401 | 10.5k | } |
402 | | |
403 | | /** |
404 | | * xmlIOErr: |
405 | | * @code: the error number |
406 | | * @extra: extra information |
407 | | * |
408 | | * Handle an I/O error |
409 | | */ |
410 | | static void |
411 | | xmlIOErr(int code, const char *extra) |
412 | 10.5k | { |
413 | 10.5k | __xmlIOErr(XML_FROM_IO, code, extra); |
414 | 10.5k | } |
415 | | |
416 | | /** |
417 | | * __xmlLoaderErr: |
418 | | * @ctx: the parser context |
419 | | * @extra: extra information |
420 | | * |
421 | | * Handle a resource access error |
422 | | */ |
423 | | void |
424 | | __xmlLoaderErr(void *ctx, const char *msg, const char *filename) |
425 | 0 | { |
426 | 0 | xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; |
427 | 0 | xmlStructuredErrorFunc schannel = NULL; |
428 | 0 | xmlGenericErrorFunc channel = NULL; |
429 | 0 | void *data = NULL; |
430 | 0 | xmlErrorLevel level = XML_ERR_ERROR; |
431 | |
|
432 | 0 | if ((ctxt != NULL) && (ctxt->disableSAX != 0) && |
433 | 0 | (ctxt->instate == XML_PARSER_EOF)) |
434 | 0 | return; |
435 | 0 | if ((ctxt != NULL) && (ctxt->sax != NULL)) { |
436 | 0 | if (ctxt->validate) { |
437 | 0 | channel = ctxt->sax->error; |
438 | 0 | level = XML_ERR_ERROR; |
439 | 0 | } else { |
440 | 0 | channel = ctxt->sax->warning; |
441 | 0 | level = XML_ERR_WARNING; |
442 | 0 | } |
443 | 0 | if (ctxt->sax->initialized == XML_SAX2_MAGIC) |
444 | 0 | schannel = ctxt->sax->serror; |
445 | 0 | data = ctxt->userData; |
446 | 0 | } |
447 | 0 | __xmlRaiseError(schannel, channel, data, ctxt, NULL, XML_FROM_IO, |
448 | 0 | XML_IO_LOAD_ERROR, level, NULL, 0, |
449 | 0 | filename, NULL, NULL, 0, 0, |
450 | 0 | msg, filename); |
451 | |
|
452 | 0 | } |
453 | | |
454 | | /************************************************************************ |
455 | | * * |
456 | | * Tree memory error handler * |
457 | | * * |
458 | | ************************************************************************/ |
459 | | /** |
460 | | * xmlNormalizeWindowsPath: |
461 | | * @path: the input file path |
462 | | * |
463 | | * This function is obsolete. Please see xmlURIFromPath in uri.c for |
464 | | * a better solution. |
465 | | * |
466 | | * Returns a canonicalized version of the path |
467 | | */ |
468 | | xmlChar * |
469 | | xmlNormalizeWindowsPath(const xmlChar *path) |
470 | 0 | { |
471 | 0 | return xmlCanonicPath(path); |
472 | 0 | } |
473 | | |
474 | | /** |
475 | | * xmlCleanupInputCallbacks: |
476 | | * |
477 | | * clears the entire input callback table. this includes the |
478 | | * compiled-in I/O. |
479 | | */ |
480 | | void |
481 | | xmlCleanupInputCallbacks(void) |
482 | 0 | { |
483 | 0 | int i; |
484 | |
|
485 | 0 | if (!xmlInputCallbackInitialized) |
486 | 0 | return; |
487 | | |
488 | 0 | for (i = xmlInputCallbackNr - 1; i >= 0; i--) { |
489 | 0 | xmlInputCallbackTable[i].matchcallback = NULL; |
490 | 0 | xmlInputCallbackTable[i].opencallback = NULL; |
491 | 0 | xmlInputCallbackTable[i].readcallback = NULL; |
492 | 0 | xmlInputCallbackTable[i].closecallback = NULL; |
493 | 0 | } |
494 | |
|
495 | 0 | xmlInputCallbackNr = 0; |
496 | 0 | xmlInputCallbackInitialized = 0; |
497 | 0 | } |
498 | | |
499 | | /** |
500 | | * xmlPopInputCallbacks: |
501 | | * |
502 | | * Clear the top input callback from the input stack. this includes the |
503 | | * compiled-in I/O. |
504 | | * |
505 | | * Returns the number of input callback registered or -1 in case of error. |
506 | | */ |
507 | | int |
508 | | xmlPopInputCallbacks(void) |
509 | 0 | { |
510 | 0 | if (!xmlInputCallbackInitialized) |
511 | 0 | return(-1); |
512 | | |
513 | 0 | if (xmlInputCallbackNr <= 0) |
514 | 0 | return(-1); |
515 | | |
516 | 0 | xmlInputCallbackNr--; |
517 | 0 | xmlInputCallbackTable[xmlInputCallbackNr].matchcallback = NULL; |
518 | 0 | xmlInputCallbackTable[xmlInputCallbackNr].opencallback = NULL; |
519 | 0 | xmlInputCallbackTable[xmlInputCallbackNr].readcallback = NULL; |
520 | 0 | xmlInputCallbackTable[xmlInputCallbackNr].closecallback = NULL; |
521 | |
|
522 | 0 | return(xmlInputCallbackNr); |
523 | 0 | } |
524 | | |
525 | | #ifdef LIBXML_OUTPUT_ENABLED |
526 | | /** |
527 | | * xmlCleanupOutputCallbacks: |
528 | | * |
529 | | * clears the entire output callback table. this includes the |
530 | | * compiled-in I/O callbacks. |
531 | | */ |
532 | | void |
533 | | xmlCleanupOutputCallbacks(void) |
534 | 0 | { |
535 | 0 | int i; |
536 | |
|
537 | 0 | if (!xmlOutputCallbackInitialized) |
538 | 0 | return; |
539 | | |
540 | 0 | for (i = xmlOutputCallbackNr - 1; i >= 0; i--) { |
541 | 0 | xmlOutputCallbackTable[i].matchcallback = NULL; |
542 | 0 | xmlOutputCallbackTable[i].opencallback = NULL; |
543 | 0 | xmlOutputCallbackTable[i].writecallback = NULL; |
544 | 0 | xmlOutputCallbackTable[i].closecallback = NULL; |
545 | 0 | } |
546 | |
|
547 | 0 | xmlOutputCallbackNr = 0; |
548 | 0 | xmlOutputCallbackInitialized = 0; |
549 | 0 | } |
550 | | |
551 | | /** |
552 | | * xmlPopOutputCallbacks: |
553 | | * |
554 | | * Remove the top output callbacks from the output stack. This includes the |
555 | | * compiled-in I/O. |
556 | | * |
557 | | * Returns the number of output callback registered or -1 in case of error. |
558 | | */ |
559 | | int |
560 | | xmlPopOutputCallbacks(void) |
561 | 0 | { |
562 | 0 | if (!xmlOutputCallbackInitialized) |
563 | 0 | return(-1); |
564 | | |
565 | 0 | if (xmlOutputCallbackNr <= 0) |
566 | 0 | return(-1); |
567 | | |
568 | 0 | xmlOutputCallbackNr--; |
569 | 0 | xmlOutputCallbackTable[xmlOutputCallbackNr].matchcallback = NULL; |
570 | 0 | xmlOutputCallbackTable[xmlOutputCallbackNr].opencallback = NULL; |
571 | 0 | xmlOutputCallbackTable[xmlOutputCallbackNr].writecallback = NULL; |
572 | 0 | xmlOutputCallbackTable[xmlOutputCallbackNr].closecallback = NULL; |
573 | |
|
574 | 0 | return(xmlOutputCallbackNr); |
575 | 0 | } |
576 | | |
577 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
578 | | |
579 | | /************************************************************************ |
580 | | * * |
581 | | * Standard I/O for file accesses * |
582 | | * * |
583 | | ************************************************************************/ |
584 | | |
585 | | #if defined(_WIN32) |
586 | | |
587 | | /** |
588 | | * xmlWrapOpenUtf8: |
589 | | * @path: the path in utf-8 encoding |
590 | | * @mode: type of access (0 - read, 1 - write) |
591 | | * |
592 | | * function opens the file specified by @path |
593 | | * |
594 | | */ |
595 | | static FILE* |
596 | | xmlWrapOpenUtf8(const char *path,int mode) |
597 | | { |
598 | | FILE *fd = NULL; |
599 | | wchar_t *wPath; |
600 | | |
601 | | wPath = __xmlIOWin32UTF8ToWChar(path); |
602 | | if(wPath) |
603 | | { |
604 | | fd = _wfopen(wPath, mode ? L"wb" : L"rb"); |
605 | | xmlFree(wPath); |
606 | | } |
607 | | /* maybe path in native encoding */ |
608 | | if(fd == NULL) |
609 | | fd = fopen(path, mode ? "wb" : "rb"); |
610 | | |
611 | | return fd; |
612 | | } |
613 | | |
614 | | #ifdef LIBXML_ZLIB_ENABLED |
615 | | static gzFile |
616 | | xmlWrapGzOpenUtf8(const char *path, const char *mode) |
617 | | { |
618 | | gzFile fd; |
619 | | wchar_t *wPath; |
620 | | |
621 | | fd = gzopen (path, mode); |
622 | | if (fd) |
623 | | return fd; |
624 | | |
625 | | wPath = __xmlIOWin32UTF8ToWChar(path); |
626 | | if(wPath) |
627 | | { |
628 | | int d, m = (strstr(mode, "r") ? O_RDONLY : O_RDWR); |
629 | | #ifdef _O_BINARY |
630 | | m |= (strstr(mode, "b") ? _O_BINARY : 0); |
631 | | #endif |
632 | | d = _wopen(wPath, m); |
633 | | if (d >= 0) |
634 | | fd = gzdopen(d, mode); |
635 | | xmlFree(wPath); |
636 | | } |
637 | | |
638 | | return fd; |
639 | | } |
640 | | #endif |
641 | | |
642 | | /** |
643 | | * xmlWrapStatUtf8: |
644 | | * @path: the path in utf-8 encoding |
645 | | * @info: structure that stores results |
646 | | * |
647 | | * function obtains information about the file or directory |
648 | | * |
649 | | */ |
650 | | static int |
651 | | xmlWrapStatUtf8(const char *path, struct _stat *info) { |
652 | | int retval = -1; |
653 | | wchar_t *wPath; |
654 | | |
655 | | wPath = __xmlIOWin32UTF8ToWChar(path); |
656 | | if (wPath) { |
657 | | retval = _wstat(wPath, info); |
658 | | xmlFree(wPath); |
659 | | } |
660 | | /* maybe path in native encoding */ |
661 | | if(retval < 0) |
662 | | retval = _stat(path, info); |
663 | | return retval; |
664 | | } |
665 | | |
666 | | #endif |
667 | | |
668 | | /** |
669 | | * xmlCheckFilename: |
670 | | * @path: the path to check |
671 | | * |
672 | | * function checks to see if @path is a valid source |
673 | | * (file, socket...) for XML. |
674 | | * |
675 | | * if stat is not available on the target machine, |
676 | | * returns 1. if stat fails, returns 0 (if calling |
677 | | * stat on the filename fails, it can't be right). |
678 | | * if stat succeeds and the file is a directory, |
679 | | * returns 2. otherwise returns 1. |
680 | | */ |
681 | | |
682 | | int |
683 | | xmlCheckFilename (const char *path) |
684 | 5.96M | { |
685 | 5.96M | #ifdef HAVE_STAT |
686 | | #if defined(_WIN32) |
687 | | struct _stat stat_buffer; |
688 | | #else |
689 | 5.96M | struct stat stat_buffer; |
690 | 5.96M | #endif |
691 | 5.96M | #endif |
692 | 5.96M | if (path == NULL) |
693 | 0 | return(0); |
694 | | |
695 | 5.96M | #ifdef HAVE_STAT |
696 | | #if defined(_WIN32) |
697 | | /* |
698 | | * On Windows stat and wstat do not work with long pathname, |
699 | | * which start with '\\?\' |
700 | | */ |
701 | | if ((path[0] == '\\') && (path[1] == '\\') && (path[2] == '?') && |
702 | | (path[3] == '\\') ) |
703 | | return 1; |
704 | | |
705 | | if (xmlWrapStatUtf8(path, &stat_buffer) == -1) |
706 | | return 0; |
707 | | #else |
708 | 5.96M | if (stat(path, &stat_buffer) == -1) |
709 | 5.96M | return 0; |
710 | 2.83k | #endif |
711 | 2.83k | #ifdef S_ISDIR |
712 | 2.83k | if (S_ISDIR(stat_buffer.st_mode)) |
713 | 2.57k | return 2; |
714 | 257 | #endif |
715 | 257 | #endif /* HAVE_STAT */ |
716 | 257 | return 1; |
717 | 2.83k | } |
718 | | |
719 | | /** |
720 | | * xmlInputReadCallbackNop: |
721 | | * |
722 | | * No Operation xmlInputReadCallback function, does nothing. |
723 | | * |
724 | | * Returns zero |
725 | | */ |
726 | | int |
727 | | xmlInputReadCallbackNop(void *context ATTRIBUTE_UNUSED, |
728 | | char *buffer ATTRIBUTE_UNUSED, |
729 | 4.03M | int len ATTRIBUTE_UNUSED) { |
730 | 4.03M | return(0); |
731 | 4.03M | } |
732 | | |
733 | | /** |
734 | | * xmlFdRead: |
735 | | * @context: the I/O context |
736 | | * @buffer: where to drop data |
737 | | * @len: number of bytes to read |
738 | | * |
739 | | * Read @len bytes to @buffer from the I/O channel. |
740 | | * |
741 | | * Returns the number of bytes written |
742 | | */ |
743 | | static int |
744 | 0 | xmlFdRead (void * context, char * buffer, int len) { |
745 | 0 | int ret; |
746 | |
|
747 | 0 | ret = read((int) (ptrdiff_t) context, &buffer[0], len); |
748 | 0 | if (ret < 0) xmlIOErr(0, "read()"); |
749 | 0 | return(ret); |
750 | 0 | } |
751 | | |
752 | | #ifdef LIBXML_OUTPUT_ENABLED |
753 | | /** |
754 | | * xmlFdWrite: |
755 | | * @context: the I/O context |
756 | | * @buffer: where to get data |
757 | | * @len: number of bytes to write |
758 | | * |
759 | | * Write @len bytes from @buffer to the I/O channel. |
760 | | * |
761 | | * Returns the number of bytes written |
762 | | */ |
763 | | static int |
764 | 0 | xmlFdWrite (void * context, const char * buffer, int len) { |
765 | 0 | int ret = 0; |
766 | |
|
767 | 0 | if (len > 0) { |
768 | 0 | ret = write((int) (ptrdiff_t) context, &buffer[0], len); |
769 | 0 | if (ret < 0) xmlIOErr(0, "write()"); |
770 | 0 | } |
771 | 0 | return(ret); |
772 | 0 | } |
773 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
774 | | |
775 | | /** |
776 | | * xmlFdClose: |
777 | | * @context: the I/O context |
778 | | * |
779 | | * Close an I/O channel |
780 | | * |
781 | | * Returns 0 in case of success and error code otherwise |
782 | | */ |
783 | | static int |
784 | 0 | xmlFdClose (void * context) { |
785 | 0 | int ret; |
786 | 0 | ret = close((int) (ptrdiff_t) context); |
787 | 0 | if (ret < 0) xmlIOErr(0, "close()"); |
788 | 0 | return(ret); |
789 | 0 | } |
790 | | |
791 | | /** |
792 | | * xmlFileMatch: |
793 | | * @filename: the URI for matching |
794 | | * |
795 | | * input from FILE * |
796 | | * |
797 | | * Returns 1 if matches, 0 otherwise |
798 | | */ |
799 | | int |
800 | 0 | xmlFileMatch (const char *filename ATTRIBUTE_UNUSED) { |
801 | 0 | return(1); |
802 | 0 | } |
803 | | |
804 | | /** |
805 | | * xmlFileOpen_real: |
806 | | * @filename: the URI for matching |
807 | | * |
808 | | * input from FILE *, supports compressed input |
809 | | * if @filename is " " then the standard input is used |
810 | | * |
811 | | * Returns an I/O context or NULL in case of error |
812 | | */ |
813 | | static void * |
814 | 0 | xmlFileOpen_real (const char *filename) { |
815 | 0 | const char *path = filename; |
816 | 0 | FILE *fd; |
817 | |
|
818 | 0 | if (filename == NULL) |
819 | 0 | return(NULL); |
820 | | |
821 | 0 | if (!strcmp(filename, "-")) { |
822 | 0 | fd = stdin; |
823 | 0 | return((void *) fd); |
824 | 0 | } |
825 | | |
826 | 0 | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) { |
827 | | #if defined (_WIN32) |
828 | | path = &filename[17]; |
829 | | #else |
830 | 0 | path = &filename[16]; |
831 | 0 | #endif |
832 | 0 | } else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) { |
833 | | #if defined (_WIN32) |
834 | | path = &filename[8]; |
835 | | #else |
836 | 0 | path = &filename[7]; |
837 | 0 | #endif |
838 | 0 | } else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:/", 6)) { |
839 | | /* lots of generators seems to lazy to read RFC 1738 */ |
840 | | #if defined (_WIN32) |
841 | | path = &filename[6]; |
842 | | #else |
843 | 0 | path = &filename[5]; |
844 | 0 | #endif |
845 | 0 | } |
846 | | |
847 | | /* Do not check DDNAME on zOS ! */ |
848 | 0 | #if !defined(__MVS__) |
849 | 0 | if (!xmlCheckFilename(path)) |
850 | 0 | return(NULL); |
851 | 0 | #endif |
852 | | |
853 | | #if defined(_WIN32) |
854 | | fd = xmlWrapOpenUtf8(path, 0); |
855 | | #else |
856 | 0 | fd = fopen(path, "rb"); |
857 | 0 | #endif /* WIN32 */ |
858 | 0 | if (fd == NULL) xmlIOErr(0, path); |
859 | 0 | return((void *) fd); |
860 | 0 | } |
861 | | |
862 | | /** |
863 | | * xmlFileOpen: |
864 | | * @filename: the URI for matching |
865 | | * |
866 | | * Wrapper around xmlFileOpen_real that try it with an unescaped |
867 | | * version of @filename, if this fails fallback to @filename |
868 | | * |
869 | | * Returns a handler or NULL in case or failure |
870 | | */ |
871 | | void * |
872 | 0 | xmlFileOpen (const char *filename) { |
873 | 0 | char *unescaped; |
874 | 0 | void *retval; |
875 | |
|
876 | 0 | retval = xmlFileOpen_real(filename); |
877 | 0 | if (retval == NULL) { |
878 | 0 | unescaped = xmlURIUnescapeString(filename, 0, NULL); |
879 | 0 | if (unescaped != NULL) { |
880 | 0 | retval = xmlFileOpen_real(unescaped); |
881 | 0 | xmlFree(unescaped); |
882 | 0 | } |
883 | 0 | } |
884 | |
|
885 | 0 | return retval; |
886 | 0 | } |
887 | | |
888 | | #ifdef LIBXML_OUTPUT_ENABLED |
889 | | /** |
890 | | * xmlFileOpenW: |
891 | | * @filename: the URI for matching |
892 | | * |
893 | | * output to from FILE *, |
894 | | * if @filename is "-" then the standard output is used |
895 | | * |
896 | | * Returns an I/O context or NULL in case of error |
897 | | */ |
898 | | static void * |
899 | 0 | xmlFileOpenW (const char *filename) { |
900 | 0 | const char *path = NULL; |
901 | 0 | FILE *fd; |
902 | |
|
903 | 0 | if (!strcmp(filename, "-")) { |
904 | 0 | fd = stdout; |
905 | 0 | return((void *) fd); |
906 | 0 | } |
907 | | |
908 | 0 | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) |
909 | | #if defined (_WIN32) |
910 | | path = &filename[17]; |
911 | | #else |
912 | 0 | path = &filename[16]; |
913 | 0 | #endif |
914 | 0 | else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) { |
915 | | #if defined (_WIN32) |
916 | | path = &filename[8]; |
917 | | #else |
918 | 0 | path = &filename[7]; |
919 | 0 | #endif |
920 | 0 | } else |
921 | 0 | path = filename; |
922 | |
|
923 | 0 | if (path == NULL) |
924 | 0 | return(NULL); |
925 | | |
926 | | #if defined(_WIN32) |
927 | | fd = xmlWrapOpenUtf8(path, 1); |
928 | | #elif(__MVS__) |
929 | | fd = fopen(path, "w"); |
930 | | #else |
931 | 0 | fd = fopen(path, "wb"); |
932 | 0 | #endif /* WIN32 */ |
933 | |
|
934 | 0 | if (fd == NULL) xmlIOErr(0, path); |
935 | 0 | return((void *) fd); |
936 | 0 | } |
937 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
938 | | |
939 | | /** |
940 | | * xmlFileRead: |
941 | | * @context: the I/O context |
942 | | * @buffer: where to drop data |
943 | | * @len: number of bytes to write |
944 | | * |
945 | | * Read @len bytes to @buffer from the I/O channel. |
946 | | * |
947 | | * Returns the number of bytes written or < 0 in case of failure |
948 | | */ |
949 | | int |
950 | 0 | xmlFileRead (void * context, char * buffer, int len) { |
951 | 0 | int ret; |
952 | 0 | if ((context == NULL) || (buffer == NULL)) |
953 | 0 | return(-1); |
954 | 0 | ret = fread(&buffer[0], 1, len, (FILE *) context); |
955 | 0 | if (ret < 0) xmlIOErr(0, "fread()"); |
956 | 0 | return(ret); |
957 | 0 | } |
958 | | |
959 | | #ifdef LIBXML_OUTPUT_ENABLED |
960 | | /** |
961 | | * xmlFileWrite: |
962 | | * @context: the I/O context |
963 | | * @buffer: where to drop data |
964 | | * @len: number of bytes to write |
965 | | * |
966 | | * Write @len bytes from @buffer to the I/O channel. |
967 | | * |
968 | | * Returns the number of bytes written |
969 | | */ |
970 | | static int |
971 | 0 | xmlFileWrite (void * context, const char * buffer, int len) { |
972 | 0 | int items; |
973 | |
|
974 | 0 | if ((context == NULL) || (buffer == NULL)) |
975 | 0 | return(-1); |
976 | 0 | items = fwrite(&buffer[0], len, 1, (FILE *) context); |
977 | 0 | if ((items == 0) && (ferror((FILE *) context))) { |
978 | 0 | xmlIOErr(0, "fwrite()"); |
979 | 0 | return(-1); |
980 | 0 | } |
981 | 0 | return(items * len); |
982 | 0 | } |
983 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
984 | | |
985 | | /** |
986 | | * xmlFileClose: |
987 | | * @context: the I/O context |
988 | | * |
989 | | * Close an I/O channel |
990 | | * |
991 | | * Returns 0 or -1 in case of error |
992 | | */ |
993 | | int |
994 | 0 | xmlFileClose (void * context) { |
995 | 0 | FILE *fil; |
996 | 0 | int ret; |
997 | |
|
998 | 0 | if (context == NULL) |
999 | 0 | return(-1); |
1000 | 0 | fil = (FILE *) context; |
1001 | 0 | if ((fil == stdout) || (fil == stderr)) { |
1002 | 0 | ret = fflush(fil); |
1003 | 0 | if (ret < 0) |
1004 | 0 | xmlIOErr(0, "fflush()"); |
1005 | 0 | return(0); |
1006 | 0 | } |
1007 | 0 | if (fil == stdin) |
1008 | 0 | return(0); |
1009 | 0 | ret = ( fclose((FILE *) context) == EOF ) ? -1 : 0; |
1010 | 0 | if (ret < 0) |
1011 | 0 | xmlIOErr(0, "fclose()"); |
1012 | 0 | return(ret); |
1013 | 0 | } |
1014 | | |
1015 | | /** |
1016 | | * xmlFileFlush: |
1017 | | * @context: the I/O context |
1018 | | * |
1019 | | * Flush an I/O channel |
1020 | | */ |
1021 | | static int |
1022 | 0 | xmlFileFlush (void * context) { |
1023 | 0 | int ret; |
1024 | |
|
1025 | 0 | if (context == NULL) |
1026 | 0 | return(-1); |
1027 | 0 | ret = ( fflush((FILE *) context) == EOF ) ? -1 : 0; |
1028 | 0 | if (ret < 0) |
1029 | 0 | xmlIOErr(0, "fflush()"); |
1030 | 0 | return(ret); |
1031 | 0 | } |
1032 | | |
1033 | | #ifdef LIBXML_OUTPUT_ENABLED |
1034 | | /** |
1035 | | * xmlBufferWrite: |
1036 | | * @context: the xmlBuffer |
1037 | | * @buffer: the data to write |
1038 | | * @len: number of bytes to write |
1039 | | * |
1040 | | * Write @len bytes from @buffer to the xml buffer |
1041 | | * |
1042 | | * Returns the number of bytes written |
1043 | | */ |
1044 | | static int |
1045 | 0 | xmlBufferWrite (void * context, const char * buffer, int len) { |
1046 | 0 | int ret; |
1047 | |
|
1048 | 0 | ret = xmlBufferAdd((xmlBufferPtr) context, (const xmlChar *) buffer, len); |
1049 | 0 | if (ret != 0) |
1050 | 0 | return(-1); |
1051 | 0 | return(len); |
1052 | 0 | } |
1053 | | #endif |
1054 | | |
1055 | | #ifdef LIBXML_ZLIB_ENABLED |
1056 | | /************************************************************************ |
1057 | | * * |
1058 | | * I/O for compressed file accesses * |
1059 | | * * |
1060 | | ************************************************************************/ |
1061 | | /** |
1062 | | * xmlGzfileMatch: |
1063 | | * @filename: the URI for matching |
1064 | | * |
1065 | | * input from compressed file test |
1066 | | * |
1067 | | * Returns 1 if matches, 0 otherwise |
1068 | | */ |
1069 | | static int |
1070 | 0 | xmlGzfileMatch (const char *filename ATTRIBUTE_UNUSED) { |
1071 | 0 | return(1); |
1072 | 0 | } |
1073 | | |
1074 | | /** |
1075 | | * xmlGzfileOpen_real: |
1076 | | * @filename: the URI for matching |
1077 | | * |
1078 | | * input from compressed file open |
1079 | | * if @filename is " " then the standard input is used |
1080 | | * |
1081 | | * Returns an I/O context or NULL in case of error |
1082 | | */ |
1083 | | static void * |
1084 | 0 | xmlGzfileOpen_real (const char *filename) { |
1085 | 0 | const char *path = NULL; |
1086 | 0 | gzFile fd; |
1087 | |
|
1088 | 0 | if (!strcmp(filename, "-")) { |
1089 | 0 | int duped_fd = dup(fileno(stdin)); |
1090 | 0 | fd = gzdopen(duped_fd, "rb"); |
1091 | 0 | if (fd == Z_NULL && duped_fd >= 0) { |
1092 | 0 | close(duped_fd); /* gzdOpen() does not close on failure */ |
1093 | 0 | } |
1094 | |
|
1095 | 0 | return((void *) fd); |
1096 | 0 | } |
1097 | | |
1098 | 0 | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) |
1099 | | #if defined (_WIN32) |
1100 | | path = &filename[17]; |
1101 | | #else |
1102 | 0 | path = &filename[16]; |
1103 | 0 | #endif |
1104 | 0 | else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) { |
1105 | | #if defined (_WIN32) |
1106 | | path = &filename[8]; |
1107 | | #else |
1108 | 0 | path = &filename[7]; |
1109 | 0 | #endif |
1110 | 0 | } else |
1111 | 0 | path = filename; |
1112 | |
|
1113 | 0 | if (path == NULL) |
1114 | 0 | return(NULL); |
1115 | 0 | if (!xmlCheckFilename(path)) |
1116 | 0 | return(NULL); |
1117 | | |
1118 | | #if defined(_WIN32) |
1119 | | fd = xmlWrapGzOpenUtf8(path, "rb"); |
1120 | | #else |
1121 | 0 | fd = gzopen(path, "rb"); |
1122 | 0 | #endif |
1123 | 0 | return((void *) fd); |
1124 | 0 | } |
1125 | | |
1126 | | /** |
1127 | | * xmlGzfileOpen: |
1128 | | * @filename: the URI for matching |
1129 | | * |
1130 | | * Wrapper around xmlGzfileOpen_real if the open fails, it will |
1131 | | * try to unescape @filename |
1132 | | */ |
1133 | | static void * |
1134 | 0 | xmlGzfileOpen (const char *filename) { |
1135 | 0 | char *unescaped; |
1136 | 0 | void *retval; |
1137 | |
|
1138 | 0 | retval = xmlGzfileOpen_real(filename); |
1139 | 0 | if (retval == NULL) { |
1140 | 0 | unescaped = xmlURIUnescapeString(filename, 0, NULL); |
1141 | 0 | if (unescaped != NULL) { |
1142 | 0 | retval = xmlGzfileOpen_real(unescaped); |
1143 | 0 | } |
1144 | 0 | xmlFree(unescaped); |
1145 | 0 | } |
1146 | 0 | return retval; |
1147 | 0 | } |
1148 | | |
1149 | | #ifdef LIBXML_OUTPUT_ENABLED |
1150 | | /** |
1151 | | * xmlGzfileOpenW: |
1152 | | * @filename: the URI for matching |
1153 | | * @compression: the compression factor (0 - 9 included) |
1154 | | * |
1155 | | * input from compressed file open |
1156 | | * if @filename is " " then the standard input is used |
1157 | | * |
1158 | | * Returns an I/O context or NULL in case of error |
1159 | | */ |
1160 | | static void * |
1161 | 0 | xmlGzfileOpenW (const char *filename, int compression) { |
1162 | 0 | const char *path = NULL; |
1163 | 0 | char mode[15]; |
1164 | 0 | gzFile fd; |
1165 | |
|
1166 | 0 | snprintf(mode, sizeof(mode), "wb%d", compression); |
1167 | 0 | if (!strcmp(filename, "-")) { |
1168 | 0 | int duped_fd = dup(fileno(stdout)); |
1169 | 0 | fd = gzdopen(duped_fd, "rb"); |
1170 | 0 | if (fd == Z_NULL && duped_fd >= 0) { |
1171 | 0 | close(duped_fd); /* gzdOpen() does not close on failure */ |
1172 | 0 | } |
1173 | |
|
1174 | 0 | return((void *) fd); |
1175 | 0 | } |
1176 | | |
1177 | 0 | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) |
1178 | | #if defined (_WIN32) |
1179 | | path = &filename[17]; |
1180 | | #else |
1181 | 0 | path = &filename[16]; |
1182 | 0 | #endif |
1183 | 0 | else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) { |
1184 | | #if defined (_WIN32) |
1185 | | path = &filename[8]; |
1186 | | #else |
1187 | 0 | path = &filename[7]; |
1188 | 0 | #endif |
1189 | 0 | } else |
1190 | 0 | path = filename; |
1191 | |
|
1192 | 0 | if (path == NULL) |
1193 | 0 | return(NULL); |
1194 | | |
1195 | | #if defined(_WIN32) |
1196 | | fd = xmlWrapGzOpenUtf8(path, mode); |
1197 | | #else |
1198 | 0 | fd = gzopen(path, mode); |
1199 | 0 | #endif |
1200 | 0 | return((void *) fd); |
1201 | 0 | } |
1202 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1203 | | |
1204 | | /** |
1205 | | * xmlGzfileRead: |
1206 | | * @context: the I/O context |
1207 | | * @buffer: where to drop data |
1208 | | * @len: number of bytes to write |
1209 | | * |
1210 | | * Read @len bytes to @buffer from the compressed I/O channel. |
1211 | | * |
1212 | | * Returns the number of bytes read. |
1213 | | */ |
1214 | | static int |
1215 | 0 | xmlGzfileRead (void * context, char * buffer, int len) { |
1216 | 0 | int ret; |
1217 | |
|
1218 | 0 | ret = gzread((gzFile) context, &buffer[0], len); |
1219 | 0 | if (ret < 0) xmlIOErr(0, "gzread()"); |
1220 | 0 | return(ret); |
1221 | 0 | } |
1222 | | |
1223 | | #ifdef LIBXML_OUTPUT_ENABLED |
1224 | | /** |
1225 | | * xmlGzfileWrite: |
1226 | | * @context: the I/O context |
1227 | | * @buffer: where to drop data |
1228 | | * @len: number of bytes to write |
1229 | | * |
1230 | | * Write @len bytes from @buffer to the compressed I/O channel. |
1231 | | * |
1232 | | * Returns the number of bytes written |
1233 | | */ |
1234 | | static int |
1235 | 0 | xmlGzfileWrite (void * context, const char * buffer, int len) { |
1236 | 0 | int ret; |
1237 | |
|
1238 | 0 | ret = gzwrite((gzFile) context, (char *) &buffer[0], len); |
1239 | 0 | if (ret < 0) xmlIOErr(0, "gzwrite()"); |
1240 | 0 | return(ret); |
1241 | 0 | } |
1242 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1243 | | |
1244 | | /** |
1245 | | * xmlGzfileClose: |
1246 | | * @context: the I/O context |
1247 | | * |
1248 | | * Close a compressed I/O channel |
1249 | | */ |
1250 | | static int |
1251 | 0 | xmlGzfileClose (void * context) { |
1252 | 0 | int ret; |
1253 | |
|
1254 | 0 | ret = (gzclose((gzFile) context) == Z_OK ) ? 0 : -1; |
1255 | 0 | if (ret < 0) xmlIOErr(0, "gzclose()"); |
1256 | 0 | return(ret); |
1257 | 0 | } |
1258 | | #endif /* LIBXML_ZLIB_ENABLED */ |
1259 | | |
1260 | | #ifdef LIBXML_LZMA_ENABLED |
1261 | | /************************************************************************ |
1262 | | * * |
1263 | | * I/O for compressed file accesses * |
1264 | | * * |
1265 | | ************************************************************************/ |
1266 | | #include "private/xzlib.h" |
1267 | | /** |
1268 | | * xmlXzfileMatch: |
1269 | | * @filename: the URI for matching |
1270 | | * |
1271 | | * input from compressed file test |
1272 | | * |
1273 | | * Returns 1 if matches, 0 otherwise |
1274 | | */ |
1275 | | static int |
1276 | 0 | xmlXzfileMatch (const char *filename ATTRIBUTE_UNUSED) { |
1277 | 0 | return(1); |
1278 | 0 | } |
1279 | | |
1280 | | /** |
1281 | | * xmlXzFileOpen_real: |
1282 | | * @filename: the URI for matching |
1283 | | * |
1284 | | * input from compressed file open |
1285 | | * if @filename is " " then the standard input is used |
1286 | | * |
1287 | | * Returns an I/O context or NULL in case of error |
1288 | | */ |
1289 | | static void * |
1290 | 0 | xmlXzfileOpen_real (const char *filename) { |
1291 | 0 | const char *path = NULL; |
1292 | 0 | xzFile fd; |
1293 | |
|
1294 | 0 | if (!strcmp(filename, "-")) { |
1295 | 0 | fd = __libxml2_xzdopen(dup(fileno(stdin)), "rb"); |
1296 | 0 | return((void *) fd); |
1297 | 0 | } |
1298 | | |
1299 | 0 | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) { |
1300 | 0 | path = &filename[16]; |
1301 | 0 | } else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) { |
1302 | 0 | path = &filename[7]; |
1303 | 0 | } else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:/", 6)) { |
1304 | | /* lots of generators seems to lazy to read RFC 1738 */ |
1305 | 0 | path = &filename[5]; |
1306 | 0 | } else |
1307 | 0 | path = filename; |
1308 | |
|
1309 | 0 | if (path == NULL) |
1310 | 0 | return(NULL); |
1311 | 0 | if (!xmlCheckFilename(path)) |
1312 | 0 | return(NULL); |
1313 | | |
1314 | 0 | fd = __libxml2_xzopen(path, "rb"); |
1315 | 0 | return((void *) fd); |
1316 | 0 | } |
1317 | | |
1318 | | /** |
1319 | | * xmlXzfileOpen: |
1320 | | * @filename: the URI for matching |
1321 | | * |
1322 | | * Wrapper around xmlXzfileOpen_real that try it with an unescaped |
1323 | | * version of @filename, if this fails fallback to @filename |
1324 | | * |
1325 | | * Returns a handler or NULL in case or failure |
1326 | | */ |
1327 | | static void * |
1328 | 0 | xmlXzfileOpen (const char *filename) { |
1329 | 0 | char *unescaped; |
1330 | 0 | void *retval; |
1331 | |
|
1332 | 0 | retval = xmlXzfileOpen_real(filename); |
1333 | 0 | if (retval == NULL) { |
1334 | 0 | unescaped = xmlURIUnescapeString(filename, 0, NULL); |
1335 | 0 | if (unescaped != NULL) { |
1336 | 0 | retval = xmlXzfileOpen_real(unescaped); |
1337 | 0 | } |
1338 | 0 | xmlFree(unescaped); |
1339 | 0 | } |
1340 | |
|
1341 | 0 | return retval; |
1342 | 0 | } |
1343 | | |
1344 | | /** |
1345 | | * xmlXzfileRead: |
1346 | | * @context: the I/O context |
1347 | | * @buffer: where to drop data |
1348 | | * @len: number of bytes to write |
1349 | | * |
1350 | | * Read @len bytes to @buffer from the compressed I/O channel. |
1351 | | * |
1352 | | * Returns the number of bytes written |
1353 | | */ |
1354 | | static int |
1355 | 0 | xmlXzfileRead (void * context, char * buffer, int len) { |
1356 | 0 | int ret; |
1357 | |
|
1358 | 0 | ret = __libxml2_xzread((xzFile) context, &buffer[0], len); |
1359 | 0 | if (ret < 0) xmlIOErr(0, "xzread()"); |
1360 | 0 | return(ret); |
1361 | 0 | } |
1362 | | |
1363 | | /** |
1364 | | * xmlXzfileClose: |
1365 | | * @context: the I/O context |
1366 | | * |
1367 | | * Close a compressed I/O channel |
1368 | | */ |
1369 | | static int |
1370 | 0 | xmlXzfileClose (void * context) { |
1371 | 0 | int ret; |
1372 | |
|
1373 | 0 | ret = (__libxml2_xzclose((xzFile) context) == LZMA_OK ) ? 0 : -1; |
1374 | 0 | if (ret < 0) xmlIOErr(0, "xzclose()"); |
1375 | 0 | return(ret); |
1376 | 0 | } |
1377 | | #endif /* LIBXML_LZMA_ENABLED */ |
1378 | | |
1379 | | #ifdef LIBXML_HTTP_ENABLED |
1380 | | /************************************************************************ |
1381 | | * * |
1382 | | * I/O for HTTP file accesses * |
1383 | | * * |
1384 | | ************************************************************************/ |
1385 | | |
1386 | | #ifdef LIBXML_OUTPUT_ENABLED |
1387 | | typedef struct xmlIOHTTPWriteCtxt_ |
1388 | | { |
1389 | | int compression; |
1390 | | |
1391 | | char * uri; |
1392 | | |
1393 | | void * doc_buff; |
1394 | | |
1395 | | } xmlIOHTTPWriteCtxt, *xmlIOHTTPWriteCtxtPtr; |
1396 | | |
1397 | | #ifdef LIBXML_ZLIB_ENABLED |
1398 | | |
1399 | | #define DFLT_WBITS ( -15 ) |
1400 | | #define DFLT_MEM_LVL ( 8 ) |
1401 | | #define GZ_MAGIC1 ( 0x1f ) |
1402 | | #define GZ_MAGIC2 ( 0x8b ) |
1403 | | #define LXML_ZLIB_OS_CODE ( 0x03 ) |
1404 | | #define INIT_HTTP_BUFF_SIZE ( 32768 ) |
1405 | | #define DFLT_ZLIB_RATIO ( 5 ) |
1406 | | |
1407 | | /* |
1408 | | ** Data structure and functions to work with sending compressed data |
1409 | | ** via HTTP. |
1410 | | */ |
1411 | | |
1412 | | typedef struct xmlZMemBuff_ |
1413 | | { |
1414 | | unsigned long size; |
1415 | | unsigned long crc; |
1416 | | |
1417 | | unsigned char * zbuff; |
1418 | | z_stream zctrl; |
1419 | | |
1420 | | } xmlZMemBuff, *xmlZMemBuffPtr; |
1421 | | |
1422 | | /** |
1423 | | * append_reverse_ulong |
1424 | | * @buff: Compressed memory buffer |
1425 | | * @data: Unsigned long to append |
1426 | | * |
1427 | | * Append a unsigned long in reverse byte order to the end of the |
1428 | | * memory buffer. |
1429 | | */ |
1430 | | static void |
1431 | | append_reverse_ulong( xmlZMemBuff * buff, unsigned long data ) { |
1432 | | |
1433 | | int idx; |
1434 | | |
1435 | | if ( buff == NULL ) |
1436 | | return; |
1437 | | |
1438 | | /* |
1439 | | ** This is plagiarized from putLong in gzio.c (zlib source) where |
1440 | | ** the number "4" is hardcoded. If zlib is ever patched to |
1441 | | ** support 64 bit file sizes, this code would need to be patched |
1442 | | ** as well. |
1443 | | */ |
1444 | | |
1445 | | for ( idx = 0; idx < 4; idx++ ) { |
1446 | | *buff->zctrl.next_out = ( data & 0xff ); |
1447 | | data >>= 8; |
1448 | | buff->zctrl.next_out++; |
1449 | | } |
1450 | | |
1451 | | return; |
1452 | | } |
1453 | | |
1454 | | /** |
1455 | | * |
1456 | | * xmlFreeZMemBuff |
1457 | | * @buff: The memory buffer context to clear |
1458 | | * |
1459 | | * Release all the resources associated with the compressed memory buffer. |
1460 | | */ |
1461 | | static void |
1462 | | xmlFreeZMemBuff( xmlZMemBuffPtr buff ) { |
1463 | | |
1464 | | #ifdef DEBUG_HTTP |
1465 | | int z_err; |
1466 | | #endif |
1467 | | |
1468 | | if ( buff == NULL ) |
1469 | | return; |
1470 | | |
1471 | | xmlFree( buff->zbuff ); |
1472 | | #ifdef DEBUG_HTTP |
1473 | | z_err = deflateEnd( &buff->zctrl ); |
1474 | | if ( z_err != Z_OK ) |
1475 | | xmlGenericError( xmlGenericErrorContext, |
1476 | | "xmlFreeZMemBuff: Error releasing zlib context: %d\n", |
1477 | | z_err ); |
1478 | | #else |
1479 | | deflateEnd( &buff->zctrl ); |
1480 | | #endif |
1481 | | |
1482 | | xmlFree( buff ); |
1483 | | return; |
1484 | | } |
1485 | | |
1486 | | /** |
1487 | | * xmlCreateZMemBuff |
1488 | | *@compression: Compression value to use |
1489 | | * |
1490 | | * Create a memory buffer to hold the compressed XML document. The |
1491 | | * compressed document in memory will end up being identical to what |
1492 | | * would be created if gzopen/gzwrite/gzclose were being used to |
1493 | | * write the document to disk. The code for the header/trailer data to |
1494 | | * the compression is plagiarized from the zlib source files. |
1495 | | */ |
1496 | | static void * |
1497 | | xmlCreateZMemBuff( int compression ) { |
1498 | | |
1499 | | int z_err; |
1500 | | int hdr_lgth; |
1501 | | xmlZMemBuffPtr buff = NULL; |
1502 | | |
1503 | | if ( ( compression < 1 ) || ( compression > 9 ) ) |
1504 | | return ( NULL ); |
1505 | | |
1506 | | /* Create the control and data areas */ |
1507 | | |
1508 | | buff = xmlMalloc( sizeof( xmlZMemBuff ) ); |
1509 | | if ( buff == NULL ) { |
1510 | | xmlIOErrMemory("creating buffer context"); |
1511 | | return ( NULL ); |
1512 | | } |
1513 | | |
1514 | | (void)memset( buff, 0, sizeof( xmlZMemBuff ) ); |
1515 | | buff->size = INIT_HTTP_BUFF_SIZE; |
1516 | | buff->zbuff = xmlMalloc( buff->size ); |
1517 | | if ( buff->zbuff == NULL ) { |
1518 | | xmlFreeZMemBuff( buff ); |
1519 | | xmlIOErrMemory("creating buffer"); |
1520 | | return ( NULL ); |
1521 | | } |
1522 | | |
1523 | | z_err = deflateInit2( &buff->zctrl, compression, Z_DEFLATED, |
1524 | | DFLT_WBITS, DFLT_MEM_LVL, Z_DEFAULT_STRATEGY ); |
1525 | | if ( z_err != Z_OK ) { |
1526 | | xmlChar msg[500]; |
1527 | | xmlFreeZMemBuff( buff ); |
1528 | | buff = NULL; |
1529 | | xmlStrPrintf(msg, 500, |
1530 | | "xmlCreateZMemBuff: %s %d\n", |
1531 | | "Error initializing compression context. ZLIB error:", |
1532 | | z_err ); |
1533 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1534 | | return ( NULL ); |
1535 | | } |
1536 | | |
1537 | | /* Set the header data. The CRC will be needed for the trailer */ |
1538 | | buff->crc = crc32( 0L, NULL, 0 ); |
1539 | | hdr_lgth = snprintf( (char *)buff->zbuff, buff->size, |
1540 | | "%c%c%c%c%c%c%c%c%c%c", |
1541 | | GZ_MAGIC1, GZ_MAGIC2, Z_DEFLATED, |
1542 | | 0, 0, 0, 0, 0, 0, LXML_ZLIB_OS_CODE ); |
1543 | | buff->zctrl.next_out = buff->zbuff + hdr_lgth; |
1544 | | buff->zctrl.avail_out = buff->size - hdr_lgth; |
1545 | | |
1546 | | return ( buff ); |
1547 | | } |
1548 | | |
1549 | | /** |
1550 | | * xmlZMemBuffExtend |
1551 | | * @buff: Buffer used to compress and consolidate data. |
1552 | | * @ext_amt: Number of bytes to extend the buffer. |
1553 | | * |
1554 | | * Extend the internal buffer used to store the compressed data by the |
1555 | | * specified amount. |
1556 | | * |
1557 | | * Returns 0 on success or -1 on failure to extend the buffer. On failure |
1558 | | * the original buffer still exists at the original size. |
1559 | | */ |
1560 | | static int |
1561 | | xmlZMemBuffExtend( xmlZMemBuffPtr buff, size_t ext_amt ) { |
1562 | | |
1563 | | int rc = -1; |
1564 | | size_t new_size; |
1565 | | size_t cur_used; |
1566 | | |
1567 | | unsigned char * tmp_ptr = NULL; |
1568 | | |
1569 | | if ( buff == NULL ) |
1570 | | return ( -1 ); |
1571 | | |
1572 | | else if ( ext_amt == 0 ) |
1573 | | return ( 0 ); |
1574 | | |
1575 | | cur_used = buff->zctrl.next_out - buff->zbuff; |
1576 | | new_size = buff->size + ext_amt; |
1577 | | |
1578 | | #ifdef DEBUG_HTTP |
1579 | | if ( cur_used > new_size ) |
1580 | | xmlGenericError( xmlGenericErrorContext, |
1581 | | "xmlZMemBuffExtend: %s\n%s %d bytes.\n", |
1582 | | "Buffer overwrite detected during compressed memory", |
1583 | | "buffer extension. Overflowed by", |
1584 | | (cur_used - new_size ) ); |
1585 | | #endif |
1586 | | |
1587 | | tmp_ptr = xmlRealloc( buff->zbuff, new_size ); |
1588 | | if ( tmp_ptr != NULL ) { |
1589 | | rc = 0; |
1590 | | buff->size = new_size; |
1591 | | buff->zbuff = tmp_ptr; |
1592 | | buff->zctrl.next_out = tmp_ptr + cur_used; |
1593 | | buff->zctrl.avail_out = new_size - cur_used; |
1594 | | } |
1595 | | else { |
1596 | | xmlChar msg[500]; |
1597 | | xmlStrPrintf(msg, 500, |
1598 | | "xmlZMemBuffExtend: %s %lu bytes.\n", |
1599 | | "Allocation failure extending output buffer to", |
1600 | | (unsigned long) new_size ); |
1601 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1602 | | } |
1603 | | |
1604 | | return ( rc ); |
1605 | | } |
1606 | | |
1607 | | /** |
1608 | | * xmlZMemBuffAppend |
1609 | | * @buff: Buffer used to compress and consolidate data |
1610 | | * @src: Uncompressed source content to append to buffer |
1611 | | * @len: Length of source data to append to buffer |
1612 | | * |
1613 | | * Compress and append data to the internal buffer. The data buffer |
1614 | | * will be expanded if needed to store the additional data. |
1615 | | * |
1616 | | * Returns the number of bytes appended to the buffer or -1 on error. |
1617 | | */ |
1618 | | static int |
1619 | | xmlZMemBuffAppend( xmlZMemBuffPtr buff, const char * src, int len ) { |
1620 | | |
1621 | | int z_err; |
1622 | | size_t min_accept; |
1623 | | |
1624 | | if ( ( buff == NULL ) || ( src == NULL ) ) |
1625 | | return ( -1 ); |
1626 | | |
1627 | | buff->zctrl.avail_in = len; |
1628 | | buff->zctrl.next_in = (unsigned char *)src; |
1629 | | while ( buff->zctrl.avail_in > 0 ) { |
1630 | | /* |
1631 | | ** Extend the buffer prior to deflate call if a reasonable amount |
1632 | | ** of output buffer space is not available. |
1633 | | */ |
1634 | | min_accept = buff->zctrl.avail_in / DFLT_ZLIB_RATIO; |
1635 | | if ( buff->zctrl.avail_out <= min_accept ) { |
1636 | | if ( xmlZMemBuffExtend( buff, buff->size ) == -1 ) |
1637 | | return ( -1 ); |
1638 | | } |
1639 | | |
1640 | | z_err = deflate( &buff->zctrl, Z_NO_FLUSH ); |
1641 | | if ( z_err != Z_OK ) { |
1642 | | xmlChar msg[500]; |
1643 | | xmlStrPrintf(msg, 500, |
1644 | | "xmlZMemBuffAppend: %s %d %s - %d", |
1645 | | "Compression error while appending", |
1646 | | len, "bytes to buffer. ZLIB error", z_err ); |
1647 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1648 | | return ( -1 ); |
1649 | | } |
1650 | | } |
1651 | | |
1652 | | buff->crc = crc32( buff->crc, (unsigned char *)src, len ); |
1653 | | |
1654 | | return ( len ); |
1655 | | } |
1656 | | |
1657 | | /** |
1658 | | * xmlZMemBuffGetContent |
1659 | | * @buff: Compressed memory content buffer |
1660 | | * @data_ref: Pointer reference to point to compressed content |
1661 | | * |
1662 | | * Flushes the compression buffers, appends gzip file trailers and |
1663 | | * returns the compressed content and length of the compressed data. |
1664 | | * NOTE: The gzip trailer code here is plagiarized from zlib source. |
1665 | | * |
1666 | | * Returns the length of the compressed data or -1 on error. |
1667 | | */ |
1668 | | static int |
1669 | | xmlZMemBuffGetContent( xmlZMemBuffPtr buff, char ** data_ref ) { |
1670 | | |
1671 | | int zlgth = -1; |
1672 | | int z_err; |
1673 | | |
1674 | | if ( ( buff == NULL ) || ( data_ref == NULL ) ) |
1675 | | return ( -1 ); |
1676 | | |
1677 | | /* Need to loop until compression output buffers are flushed */ |
1678 | | |
1679 | | do |
1680 | | { |
1681 | | z_err = deflate( &buff->zctrl, Z_FINISH ); |
1682 | | if ( z_err == Z_OK ) { |
1683 | | /* In this case Z_OK means more buffer space needed */ |
1684 | | |
1685 | | if ( xmlZMemBuffExtend( buff, buff->size ) == -1 ) |
1686 | | return ( -1 ); |
1687 | | } |
1688 | | } |
1689 | | while ( z_err == Z_OK ); |
1690 | | |
1691 | | /* If the compression state is not Z_STREAM_END, some error occurred */ |
1692 | | |
1693 | | if ( z_err == Z_STREAM_END ) { |
1694 | | |
1695 | | /* Need to append the gzip data trailer */ |
1696 | | |
1697 | | if ( buff->zctrl.avail_out < ( 2 * sizeof( unsigned long ) ) ) { |
1698 | | if ( xmlZMemBuffExtend(buff, (2 * sizeof(unsigned long))) == -1 ) |
1699 | | return ( -1 ); |
1700 | | } |
1701 | | |
1702 | | /* |
1703 | | ** For whatever reason, the CRC and length data are pushed out |
1704 | | ** in reverse byte order. So a memcpy can't be used here. |
1705 | | */ |
1706 | | |
1707 | | append_reverse_ulong( buff, buff->crc ); |
1708 | | append_reverse_ulong( buff, buff->zctrl.total_in ); |
1709 | | |
1710 | | zlgth = buff->zctrl.next_out - buff->zbuff; |
1711 | | *data_ref = (char *)buff->zbuff; |
1712 | | } |
1713 | | |
1714 | | else { |
1715 | | xmlChar msg[500]; |
1716 | | xmlStrPrintf(msg, 500, |
1717 | | "xmlZMemBuffGetContent: %s - %d\n", |
1718 | | "Error flushing zlib buffers. Error code", z_err ); |
1719 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1720 | | } |
1721 | | |
1722 | | return ( zlgth ); |
1723 | | } |
1724 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1725 | | #endif /* LIBXML_ZLIB_ENABLED */ |
1726 | | |
1727 | | #ifdef LIBXML_OUTPUT_ENABLED |
1728 | | /** |
1729 | | * xmlFreeHTTPWriteCtxt |
1730 | | * @ctxt: Context to cleanup |
1731 | | * |
1732 | | * Free allocated memory and reclaim system resources. |
1733 | | * |
1734 | | * No return value. |
1735 | | */ |
1736 | | static void |
1737 | | xmlFreeHTTPWriteCtxt( xmlIOHTTPWriteCtxtPtr ctxt ) |
1738 | | { |
1739 | | if ( ctxt->uri != NULL ) |
1740 | | xmlFree( ctxt->uri ); |
1741 | | |
1742 | | if ( ctxt->doc_buff != NULL ) { |
1743 | | |
1744 | | #ifdef LIBXML_ZLIB_ENABLED |
1745 | | if ( ctxt->compression > 0 ) { |
1746 | | xmlFreeZMemBuff( ctxt->doc_buff ); |
1747 | | } |
1748 | | else |
1749 | | #endif |
1750 | | { |
1751 | | xmlOutputBufferClose( ctxt->doc_buff ); |
1752 | | } |
1753 | | } |
1754 | | |
1755 | | xmlFree( ctxt ); |
1756 | | return; |
1757 | | } |
1758 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1759 | | |
1760 | | |
1761 | | /** |
1762 | | * xmlIOHTTPMatch: |
1763 | | * @filename: the URI for matching |
1764 | | * |
1765 | | * check if the URI matches an HTTP one |
1766 | | * |
1767 | | * Returns 1 if matches, 0 otherwise |
1768 | | */ |
1769 | | int |
1770 | | xmlIOHTTPMatch (const char *filename) { |
1771 | | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "http://", 7)) |
1772 | | return(1); |
1773 | | return(0); |
1774 | | } |
1775 | | |
1776 | | /** |
1777 | | * xmlIOHTTPOpen: |
1778 | | * @filename: the URI for matching |
1779 | | * |
1780 | | * open an HTTP I/O channel |
1781 | | * |
1782 | | * Returns an I/O context or NULL in case of error |
1783 | | */ |
1784 | | void * |
1785 | | xmlIOHTTPOpen (const char *filename) { |
1786 | | return(xmlNanoHTTPOpen(filename, NULL)); |
1787 | | } |
1788 | | |
1789 | | #ifdef LIBXML_OUTPUT_ENABLED |
1790 | | /** |
1791 | | * xmlIOHTTPOpenW: |
1792 | | * @post_uri: The destination URI for the document |
1793 | | * @compression: The compression desired for the document. |
1794 | | * |
1795 | | * Open a temporary buffer to collect the document for a subsequent HTTP POST |
1796 | | * request. Non-static as is called from the output buffer creation routine. |
1797 | | * |
1798 | | * Returns an I/O context or NULL in case of error. |
1799 | | */ |
1800 | | |
1801 | | void * |
1802 | | xmlIOHTTPOpenW(const char *post_uri, int compression ATTRIBUTE_UNUSED) |
1803 | | { |
1804 | | |
1805 | | xmlIOHTTPWriteCtxtPtr ctxt = NULL; |
1806 | | |
1807 | | if (post_uri == NULL) |
1808 | | return (NULL); |
1809 | | |
1810 | | ctxt = xmlMalloc(sizeof(xmlIOHTTPWriteCtxt)); |
1811 | | if (ctxt == NULL) { |
1812 | | xmlIOErrMemory("creating HTTP output context"); |
1813 | | return (NULL); |
1814 | | } |
1815 | | |
1816 | | (void) memset(ctxt, 0, sizeof(xmlIOHTTPWriteCtxt)); |
1817 | | |
1818 | | ctxt->uri = (char *) xmlStrdup((const xmlChar *)post_uri); |
1819 | | if (ctxt->uri == NULL) { |
1820 | | xmlIOErrMemory("copying URI"); |
1821 | | xmlFreeHTTPWriteCtxt(ctxt); |
1822 | | return (NULL); |
1823 | | } |
1824 | | |
1825 | | /* |
1826 | | * ** Since the document length is required for an HTTP post, |
1827 | | * ** need to put the document into a buffer. A memory buffer |
1828 | | * ** is being used to avoid pushing the data to disk and back. |
1829 | | */ |
1830 | | |
1831 | | #ifdef LIBXML_ZLIB_ENABLED |
1832 | | if ((compression > 0) && (compression <= 9)) { |
1833 | | |
1834 | | ctxt->compression = compression; |
1835 | | ctxt->doc_buff = xmlCreateZMemBuff(compression); |
1836 | | } else |
1837 | | #endif |
1838 | | { |
1839 | | /* Any character conversions should have been done before this */ |
1840 | | |
1841 | | ctxt->doc_buff = xmlAllocOutputBufferInternal(NULL); |
1842 | | } |
1843 | | |
1844 | | if (ctxt->doc_buff == NULL) { |
1845 | | xmlFreeHTTPWriteCtxt(ctxt); |
1846 | | ctxt = NULL; |
1847 | | } |
1848 | | |
1849 | | return (ctxt); |
1850 | | } |
1851 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1852 | | |
1853 | | #ifdef LIBXML_OUTPUT_ENABLED |
1854 | | /** |
1855 | | * xmlIOHTTPDfltOpenW |
1856 | | * @post_uri: The destination URI for this document. |
1857 | | * |
1858 | | * Calls xmlIOHTTPOpenW with no compression to set up for a subsequent |
1859 | | * HTTP post command. This function should generally not be used as |
1860 | | * the open callback is short circuited in xmlOutputBufferCreateFile. |
1861 | | * |
1862 | | * Returns a pointer to the new IO context. |
1863 | | */ |
1864 | | static void * |
1865 | | xmlIOHTTPDfltOpenW( const char * post_uri ) { |
1866 | | return ( xmlIOHTTPOpenW( post_uri, 0 ) ); |
1867 | | } |
1868 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1869 | | |
1870 | | /** |
1871 | | * xmlIOHTTPRead: |
1872 | | * @context: the I/O context |
1873 | | * @buffer: where to drop data |
1874 | | * @len: number of bytes to write |
1875 | | * |
1876 | | * Read @len bytes to @buffer from the I/O channel. |
1877 | | * |
1878 | | * Returns the number of bytes written |
1879 | | */ |
1880 | | int |
1881 | | xmlIOHTTPRead(void * context, char * buffer, int len) { |
1882 | | if ((buffer == NULL) || (len < 0)) return(-1); |
1883 | | return(xmlNanoHTTPRead(context, &buffer[0], len)); |
1884 | | } |
1885 | | |
1886 | | #ifdef LIBXML_OUTPUT_ENABLED |
1887 | | /** |
1888 | | * xmlIOHTTPWrite |
1889 | | * @context: previously opened writing context |
1890 | | * @buffer: data to output to temporary buffer |
1891 | | * @len: bytes to output |
1892 | | * |
1893 | | * Collect data from memory buffer into a temporary file for later |
1894 | | * processing. |
1895 | | * |
1896 | | * Returns number of bytes written. |
1897 | | */ |
1898 | | |
1899 | | static int |
1900 | | xmlIOHTTPWrite( void * context, const char * buffer, int len ) { |
1901 | | |
1902 | | xmlIOHTTPWriteCtxtPtr ctxt = context; |
1903 | | |
1904 | | if ( ( ctxt == NULL ) || ( ctxt->doc_buff == NULL ) || ( buffer == NULL ) ) |
1905 | | return ( -1 ); |
1906 | | |
1907 | | if ( len > 0 ) { |
1908 | | |
1909 | | /* Use gzwrite or fwrite as previously setup in the open call */ |
1910 | | |
1911 | | #ifdef LIBXML_ZLIB_ENABLED |
1912 | | if ( ctxt->compression > 0 ) |
1913 | | len = xmlZMemBuffAppend( ctxt->doc_buff, buffer, len ); |
1914 | | |
1915 | | else |
1916 | | #endif |
1917 | | len = xmlOutputBufferWrite( ctxt->doc_buff, len, buffer ); |
1918 | | |
1919 | | if ( len < 0 ) { |
1920 | | xmlChar msg[500]; |
1921 | | xmlStrPrintf(msg, 500, |
1922 | | "xmlIOHTTPWrite: %s\n%s '%s'.\n", |
1923 | | "Error appending to internal buffer.", |
1924 | | "Error sending document to URI", |
1925 | | ctxt->uri ); |
1926 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1927 | | } |
1928 | | } |
1929 | | |
1930 | | return ( len ); |
1931 | | } |
1932 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
1933 | | |
1934 | | |
1935 | | /** |
1936 | | * xmlIOHTTPClose: |
1937 | | * @context: the I/O context |
1938 | | * |
1939 | | * Close an HTTP I/O channel |
1940 | | * |
1941 | | * Returns 0 |
1942 | | */ |
1943 | | int |
1944 | | xmlIOHTTPClose (void * context) { |
1945 | | xmlNanoHTTPClose(context); |
1946 | | return 0; |
1947 | | } |
1948 | | |
1949 | | #ifdef LIBXML_OUTPUT_ENABLED |
1950 | | /** |
1951 | | * xmlIOHTTCloseWrite |
1952 | | * @context: The I/O context |
1953 | | * @http_mthd: The HTTP method to be used when sending the data |
1954 | | * |
1955 | | * Close the transmit HTTP I/O channel and actually send the data. |
1956 | | */ |
1957 | | static int |
1958 | | xmlIOHTTPCloseWrite( void * context, const char * http_mthd ) { |
1959 | | |
1960 | | int close_rc = -1; |
1961 | | int http_rtn = 0; |
1962 | | int content_lgth = 0; |
1963 | | xmlIOHTTPWriteCtxtPtr ctxt = context; |
1964 | | |
1965 | | char * http_content = NULL; |
1966 | | char * content_encoding = NULL; |
1967 | | char * content_type = (char *) "text/xml"; |
1968 | | void * http_ctxt = NULL; |
1969 | | |
1970 | | if ( ( ctxt == NULL ) || ( http_mthd == NULL ) ) |
1971 | | return ( -1 ); |
1972 | | |
1973 | | /* Retrieve the content from the appropriate buffer */ |
1974 | | |
1975 | | #ifdef LIBXML_ZLIB_ENABLED |
1976 | | |
1977 | | if ( ctxt->compression > 0 ) { |
1978 | | content_lgth = xmlZMemBuffGetContent( ctxt->doc_buff, &http_content ); |
1979 | | content_encoding = (char *) "Content-Encoding: gzip"; |
1980 | | } |
1981 | | else |
1982 | | #endif |
1983 | | { |
1984 | | /* Pull the data out of the memory output buffer */ |
1985 | | |
1986 | | xmlOutputBufferPtr dctxt = ctxt->doc_buff; |
1987 | | http_content = (char *) xmlBufContent(dctxt->buffer); |
1988 | | content_lgth = xmlBufUse(dctxt->buffer); |
1989 | | } |
1990 | | |
1991 | | if ( http_content == NULL ) { |
1992 | | xmlChar msg[500]; |
1993 | | xmlStrPrintf(msg, 500, |
1994 | | "xmlIOHTTPCloseWrite: %s '%s' %s '%s'.\n", |
1995 | | "Error retrieving content.\nUnable to", |
1996 | | http_mthd, "data to URI", ctxt->uri ); |
1997 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
1998 | | } |
1999 | | |
2000 | | else { |
2001 | | |
2002 | | http_ctxt = xmlNanoHTTPMethod( ctxt->uri, http_mthd, http_content, |
2003 | | &content_type, content_encoding, |
2004 | | content_lgth ); |
2005 | | |
2006 | | if ( http_ctxt != NULL ) { |
2007 | | #ifdef DEBUG_HTTP |
2008 | | /* If testing/debugging - dump reply with request content */ |
2009 | | |
2010 | | FILE * tst_file = NULL; |
2011 | | char buffer[ 4096 ]; |
2012 | | char * dump_name = NULL; |
2013 | | int avail; |
2014 | | |
2015 | | xmlGenericError( xmlGenericErrorContext, |
2016 | | "xmlNanoHTTPCloseWrite: HTTP %s to\n%s returned %d.\n", |
2017 | | http_mthd, ctxt->uri, |
2018 | | xmlNanoHTTPReturnCode( http_ctxt ) ); |
2019 | | |
2020 | | /* |
2021 | | ** Since either content or reply may be gzipped, |
2022 | | ** dump them to separate files instead of the |
2023 | | ** standard error context. |
2024 | | */ |
2025 | | |
2026 | | dump_name = tempnam( NULL, "lxml" ); |
2027 | | if ( dump_name != NULL ) { |
2028 | | (void)snprintf( buffer, sizeof(buffer), "%s.content", dump_name ); |
2029 | | |
2030 | | tst_file = fopen( buffer, "wb" ); |
2031 | | if ( tst_file != NULL ) { |
2032 | | xmlGenericError( xmlGenericErrorContext, |
2033 | | "Transmitted content saved in file: %s\n", buffer ); |
2034 | | |
2035 | | fwrite( http_content, 1, content_lgth, tst_file ); |
2036 | | fclose( tst_file ); |
2037 | | } |
2038 | | |
2039 | | (void)snprintf( buffer, sizeof(buffer), "%s.reply", dump_name ); |
2040 | | tst_file = fopen( buffer, "wb" ); |
2041 | | if ( tst_file != NULL ) { |
2042 | | xmlGenericError( xmlGenericErrorContext, |
2043 | | "Reply content saved in file: %s\n", buffer ); |
2044 | | |
2045 | | |
2046 | | while ( (avail = xmlNanoHTTPRead( http_ctxt, |
2047 | | buffer, sizeof( buffer ) )) > 0 ) { |
2048 | | |
2049 | | fwrite( buffer, 1, avail, tst_file ); |
2050 | | } |
2051 | | |
2052 | | fclose( tst_file ); |
2053 | | } |
2054 | | |
2055 | | free( dump_name ); |
2056 | | } |
2057 | | #endif /* DEBUG_HTTP */ |
2058 | | |
2059 | | http_rtn = xmlNanoHTTPReturnCode( http_ctxt ); |
2060 | | if ( ( http_rtn >= 200 ) && ( http_rtn < 300 ) ) |
2061 | | close_rc = 0; |
2062 | | else { |
2063 | | xmlChar msg[500]; |
2064 | | xmlStrPrintf(msg, 500, |
2065 | | "xmlIOHTTPCloseWrite: HTTP '%s' of %d %s\n'%s' %s %d\n", |
2066 | | http_mthd, content_lgth, |
2067 | | "bytes to URI", ctxt->uri, |
2068 | | "failed. HTTP return code:", http_rtn ); |
2069 | | xmlIOErr(XML_IO_WRITE, (const char *) msg); |
2070 | | } |
2071 | | |
2072 | | xmlNanoHTTPClose( http_ctxt ); |
2073 | | xmlFree( content_type ); |
2074 | | } |
2075 | | } |
2076 | | |
2077 | | /* Final cleanups */ |
2078 | | |
2079 | | xmlFreeHTTPWriteCtxt( ctxt ); |
2080 | | |
2081 | | return ( close_rc ); |
2082 | | } |
2083 | | |
2084 | | /** |
2085 | | * xmlIOHTTPClosePut |
2086 | | * |
2087 | | * @context: The I/O context |
2088 | | * |
2089 | | * Close the transmit HTTP I/O channel and actually send data using a PUT |
2090 | | * HTTP method. |
2091 | | */ |
2092 | | static int |
2093 | | xmlIOHTTPClosePut( void * ctxt ) { |
2094 | | return ( xmlIOHTTPCloseWrite( ctxt, "PUT" ) ); |
2095 | | } |
2096 | | |
2097 | | |
2098 | | /** |
2099 | | * xmlIOHTTPClosePost |
2100 | | * |
2101 | | * @context: The I/O context |
2102 | | * |
2103 | | * Close the transmit HTTP I/O channel and actually send data using a POST |
2104 | | * HTTP method. |
2105 | | */ |
2106 | | static int |
2107 | | xmlIOHTTPClosePost( void * ctxt ) { |
2108 | | return ( xmlIOHTTPCloseWrite( ctxt, "POST" ) ); |
2109 | | } |
2110 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2111 | | |
2112 | | #endif /* LIBXML_HTTP_ENABLED */ |
2113 | | |
2114 | | #ifdef LIBXML_FTP_ENABLED |
2115 | | /************************************************************************ |
2116 | | * * |
2117 | | * I/O for FTP file accesses * |
2118 | | * * |
2119 | | ************************************************************************/ |
2120 | | /** |
2121 | | * xmlIOFTPMatch: |
2122 | | * @filename: the URI for matching |
2123 | | * |
2124 | | * check if the URI matches an FTP one |
2125 | | * |
2126 | | * Returns 1 if matches, 0 otherwise |
2127 | | */ |
2128 | | int |
2129 | | xmlIOFTPMatch (const char *filename) { |
2130 | | if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "ftp://", 6)) |
2131 | | return(1); |
2132 | | return(0); |
2133 | | } |
2134 | | |
2135 | | /** |
2136 | | * xmlIOFTPOpen: |
2137 | | * @filename: the URI for matching |
2138 | | * |
2139 | | * open an FTP I/O channel |
2140 | | * |
2141 | | * Returns an I/O context or NULL in case of error |
2142 | | */ |
2143 | | void * |
2144 | | xmlIOFTPOpen (const char *filename) { |
2145 | | return(xmlNanoFTPOpen(filename)); |
2146 | | } |
2147 | | |
2148 | | /** |
2149 | | * xmlIOFTPRead: |
2150 | | * @context: the I/O context |
2151 | | * @buffer: where to drop data |
2152 | | * @len: number of bytes to write |
2153 | | * |
2154 | | * Read @len bytes to @buffer from the I/O channel. |
2155 | | * |
2156 | | * Returns the number of bytes written |
2157 | | */ |
2158 | | int |
2159 | | xmlIOFTPRead(void * context, char * buffer, int len) { |
2160 | | if ((buffer == NULL) || (len < 0)) return(-1); |
2161 | | return(xmlNanoFTPRead(context, &buffer[0], len)); |
2162 | | } |
2163 | | |
2164 | | /** |
2165 | | * xmlIOFTPClose: |
2166 | | * @context: the I/O context |
2167 | | * |
2168 | | * Close an FTP I/O channel |
2169 | | * |
2170 | | * Returns 0 |
2171 | | */ |
2172 | | int |
2173 | | xmlIOFTPClose (void * context) { |
2174 | | return ( xmlNanoFTPClose(context) ); |
2175 | | } |
2176 | | #endif /* LIBXML_FTP_ENABLED */ |
2177 | | |
2178 | | |
2179 | | /** |
2180 | | * xmlRegisterInputCallbacks: |
2181 | | * @matchFunc: the xmlInputMatchCallback |
2182 | | * @openFunc: the xmlInputOpenCallback |
2183 | | * @readFunc: the xmlInputReadCallback |
2184 | | * @closeFunc: the xmlInputCloseCallback |
2185 | | * |
2186 | | * Register a new set of I/O callback for handling parser input. |
2187 | | * |
2188 | | * Returns the registered handler number or -1 in case of error |
2189 | | */ |
2190 | | int |
2191 | | xmlRegisterInputCallbacks(xmlInputMatchCallback matchFunc, |
2192 | | xmlInputOpenCallback openFunc, xmlInputReadCallback readFunc, |
2193 | 24.7k | xmlInputCloseCallback closeFunc) { |
2194 | 24.7k | if (xmlInputCallbackNr >= MAX_INPUT_CALLBACK) { |
2195 | 0 | return(-1); |
2196 | 0 | } |
2197 | 24.7k | xmlInputCallbackTable[xmlInputCallbackNr].matchcallback = matchFunc; |
2198 | 24.7k | xmlInputCallbackTable[xmlInputCallbackNr].opencallback = openFunc; |
2199 | 24.7k | xmlInputCallbackTable[xmlInputCallbackNr].readcallback = readFunc; |
2200 | 24.7k | xmlInputCallbackTable[xmlInputCallbackNr].closecallback = closeFunc; |
2201 | 24.7k | xmlInputCallbackInitialized = 1; |
2202 | 24.7k | return(xmlInputCallbackNr++); |
2203 | 24.7k | } |
2204 | | |
2205 | | #ifdef LIBXML_OUTPUT_ENABLED |
2206 | | /** |
2207 | | * xmlRegisterOutputCallbacks: |
2208 | | * @matchFunc: the xmlOutputMatchCallback |
2209 | | * @openFunc: the xmlOutputOpenCallback |
2210 | | * @writeFunc: the xmlOutputWriteCallback |
2211 | | * @closeFunc: the xmlOutputCloseCallback |
2212 | | * |
2213 | | * Register a new set of I/O callback for handling output. |
2214 | | * |
2215 | | * Returns the registered handler number or -1 in case of error |
2216 | | */ |
2217 | | int |
2218 | | xmlRegisterOutputCallbacks(xmlOutputMatchCallback matchFunc, |
2219 | | xmlOutputOpenCallback openFunc, xmlOutputWriteCallback writeFunc, |
2220 | 8.25k | xmlOutputCloseCallback closeFunc) { |
2221 | 8.25k | if (xmlOutputCallbackNr >= MAX_OUTPUT_CALLBACK) { |
2222 | 0 | return(-1); |
2223 | 0 | } |
2224 | 8.25k | xmlOutputCallbackTable[xmlOutputCallbackNr].matchcallback = matchFunc; |
2225 | 8.25k | xmlOutputCallbackTable[xmlOutputCallbackNr].opencallback = openFunc; |
2226 | 8.25k | xmlOutputCallbackTable[xmlOutputCallbackNr].writecallback = writeFunc; |
2227 | 8.25k | xmlOutputCallbackTable[xmlOutputCallbackNr].closecallback = closeFunc; |
2228 | 8.25k | xmlOutputCallbackInitialized = 1; |
2229 | 8.25k | return(xmlOutputCallbackNr++); |
2230 | 8.25k | } |
2231 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2232 | | |
2233 | | /** |
2234 | | * xmlRegisterDefaultInputCallbacks: |
2235 | | * |
2236 | | * Registers the default compiled-in I/O handlers. |
2237 | | */ |
2238 | | void |
2239 | 8.25k | xmlRegisterDefaultInputCallbacks(void) { |
2240 | 8.25k | if (xmlInputCallbackInitialized) |
2241 | 0 | return; |
2242 | | |
2243 | 8.25k | xmlRegisterInputCallbacks(xmlFileMatch, xmlFileOpen, |
2244 | 8.25k | xmlFileRead, xmlFileClose); |
2245 | 8.25k | #ifdef LIBXML_ZLIB_ENABLED |
2246 | 8.25k | xmlRegisterInputCallbacks(xmlGzfileMatch, xmlGzfileOpen, |
2247 | 8.25k | xmlGzfileRead, xmlGzfileClose); |
2248 | 8.25k | #endif /* LIBXML_ZLIB_ENABLED */ |
2249 | 8.25k | #ifdef LIBXML_LZMA_ENABLED |
2250 | 8.25k | xmlRegisterInputCallbacks(xmlXzfileMatch, xmlXzfileOpen, |
2251 | 8.25k | xmlXzfileRead, xmlXzfileClose); |
2252 | 8.25k | #endif /* LIBXML_LZMA_ENABLED */ |
2253 | | |
2254 | | #ifdef LIBXML_HTTP_ENABLED |
2255 | | xmlRegisterInputCallbacks(xmlIOHTTPMatch, xmlIOHTTPOpen, |
2256 | | xmlIOHTTPRead, xmlIOHTTPClose); |
2257 | | #endif /* LIBXML_HTTP_ENABLED */ |
2258 | | |
2259 | | #ifdef LIBXML_FTP_ENABLED |
2260 | | xmlRegisterInputCallbacks(xmlIOFTPMatch, xmlIOFTPOpen, |
2261 | | xmlIOFTPRead, xmlIOFTPClose); |
2262 | | #endif /* LIBXML_FTP_ENABLED */ |
2263 | 8.25k | xmlInputCallbackInitialized = 1; |
2264 | 8.25k | } |
2265 | | |
2266 | | #ifdef LIBXML_OUTPUT_ENABLED |
2267 | | /** |
2268 | | * xmlRegisterDefaultOutputCallbacks: |
2269 | | * |
2270 | | * Registers the default compiled-in I/O handlers. |
2271 | | */ |
2272 | | void |
2273 | 8.25k | xmlRegisterDefaultOutputCallbacks (void) { |
2274 | 8.25k | if (xmlOutputCallbackInitialized) |
2275 | 0 | return; |
2276 | | |
2277 | 8.25k | xmlRegisterOutputCallbacks(xmlFileMatch, xmlFileOpenW, |
2278 | 8.25k | xmlFileWrite, xmlFileClose); |
2279 | | |
2280 | | #ifdef LIBXML_HTTP_ENABLED |
2281 | | xmlRegisterOutputCallbacks(xmlIOHTTPMatch, xmlIOHTTPDfltOpenW, |
2282 | | xmlIOHTTPWrite, xmlIOHTTPClosePut); |
2283 | | #endif |
2284 | | |
2285 | | /********************************* |
2286 | | No way a-priori to distinguish between gzipped files from |
2287 | | uncompressed ones except opening if existing then closing |
2288 | | and saving with same compression ratio ... a pain. |
2289 | | |
2290 | | #ifdef LIBXML_ZLIB_ENABLED |
2291 | | xmlRegisterOutputCallbacks(xmlGzfileMatch, xmlGzfileOpen, |
2292 | | xmlGzfileWrite, xmlGzfileClose); |
2293 | | #endif |
2294 | | |
2295 | | Nor FTP PUT .... |
2296 | | #ifdef LIBXML_FTP_ENABLED |
2297 | | xmlRegisterOutputCallbacks(xmlIOFTPMatch, xmlIOFTPOpen, |
2298 | | xmlIOFTPWrite, xmlIOFTPClose); |
2299 | | #endif |
2300 | | **********************************/ |
2301 | 8.25k | xmlOutputCallbackInitialized = 1; |
2302 | 8.25k | } |
2303 | | |
2304 | | #ifdef LIBXML_HTTP_ENABLED |
2305 | | /** |
2306 | | * xmlRegisterHTTPPostCallbacks: |
2307 | | * |
2308 | | * By default, libxml submits HTTP output requests using the "PUT" method. |
2309 | | * Calling this method changes the HTTP output method to use the "POST" |
2310 | | * method instead. |
2311 | | * |
2312 | | */ |
2313 | | void |
2314 | | xmlRegisterHTTPPostCallbacks( void ) { |
2315 | | |
2316 | | /* Register defaults if not done previously */ |
2317 | | |
2318 | | if ( xmlOutputCallbackInitialized == 0 ) |
2319 | | xmlRegisterDefaultOutputCallbacks( ); |
2320 | | |
2321 | | xmlRegisterOutputCallbacks(xmlIOHTTPMatch, xmlIOHTTPDfltOpenW, |
2322 | | xmlIOHTTPWrite, xmlIOHTTPClosePost); |
2323 | | return; |
2324 | | } |
2325 | | #endif |
2326 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2327 | | |
2328 | | /** |
2329 | | * xmlAllocParserInputBuffer: |
2330 | | * @enc: the charset encoding if known |
2331 | | * |
2332 | | * Create a buffered parser input for progressive parsing |
2333 | | * |
2334 | | * Returns the new parser input or NULL |
2335 | | */ |
2336 | | xmlParserInputBufferPtr |
2337 | 7.20M | xmlAllocParserInputBuffer(xmlCharEncoding enc) { |
2338 | 7.20M | xmlParserInputBufferPtr ret; |
2339 | | |
2340 | 7.20M | ret = (xmlParserInputBufferPtr) xmlMalloc(sizeof(xmlParserInputBuffer)); |
2341 | 7.20M | if (ret == NULL) { |
2342 | 0 | xmlIOErrMemory("creating input buffer"); |
2343 | 0 | return(NULL); |
2344 | 0 | } |
2345 | 7.20M | memset(ret, 0, sizeof(xmlParserInputBuffer)); |
2346 | 7.20M | ret->buffer = xmlBufCreateSize(2 * xmlDefaultBufferSize); |
2347 | 7.20M | if (ret->buffer == NULL) { |
2348 | 0 | xmlFree(ret); |
2349 | 0 | return(NULL); |
2350 | 0 | } |
2351 | 7.20M | xmlBufSetAllocationScheme(ret->buffer, XML_BUFFER_ALLOC_DOUBLEIT); |
2352 | 7.20M | ret->encoder = xmlGetCharEncodingHandler(enc); |
2353 | 7.20M | if (ret->encoder != NULL) |
2354 | 6.66k | ret->raw = xmlBufCreateSize(2 * xmlDefaultBufferSize); |
2355 | 7.19M | else |
2356 | 7.19M | ret->raw = NULL; |
2357 | 7.20M | ret->readcallback = NULL; |
2358 | 7.20M | ret->closecallback = NULL; |
2359 | 7.20M | ret->context = NULL; |
2360 | 7.20M | ret->compressed = -1; |
2361 | 7.20M | ret->rawconsumed = 0; |
2362 | | |
2363 | 7.20M | return(ret); |
2364 | 7.20M | } |
2365 | | |
2366 | | #ifdef LIBXML_OUTPUT_ENABLED |
2367 | | /** |
2368 | | * xmlAllocOutputBuffer: |
2369 | | * @encoder: the encoding converter or NULL |
2370 | | * |
2371 | | * Create a buffered parser output |
2372 | | * |
2373 | | * Returns the new parser output or NULL |
2374 | | */ |
2375 | | xmlOutputBufferPtr |
2376 | 223k | xmlAllocOutputBuffer(xmlCharEncodingHandlerPtr encoder) { |
2377 | 223k | xmlOutputBufferPtr ret; |
2378 | | |
2379 | 223k | ret = (xmlOutputBufferPtr) xmlMalloc(sizeof(xmlOutputBuffer)); |
2380 | 223k | if (ret == NULL) { |
2381 | 0 | xmlIOErrMemory("creating output buffer"); |
2382 | 0 | return(NULL); |
2383 | 0 | } |
2384 | 223k | memset(ret, 0, sizeof(xmlOutputBuffer)); |
2385 | 223k | ret->buffer = xmlBufCreate(); |
2386 | 223k | if (ret->buffer == NULL) { |
2387 | 0 | xmlFree(ret); |
2388 | 0 | return(NULL); |
2389 | 0 | } |
2390 | 223k | xmlBufSetAllocationScheme(ret->buffer, XML_BUFFER_ALLOC_DOUBLEIT); |
2391 | | |
2392 | 223k | ret->encoder = encoder; |
2393 | 223k | if (encoder != NULL) { |
2394 | 14.8k | ret->conv = xmlBufCreateSize(4000); |
2395 | 14.8k | if (ret->conv == NULL) { |
2396 | 0 | xmlBufFree(ret->buffer); |
2397 | 0 | xmlFree(ret); |
2398 | 0 | return(NULL); |
2399 | 0 | } |
2400 | | |
2401 | | /* |
2402 | | * This call is designed to initiate the encoder state |
2403 | | */ |
2404 | 14.8k | xmlCharEncOutput(ret, 1); |
2405 | 14.8k | } else |
2406 | 208k | ret->conv = NULL; |
2407 | 223k | ret->writecallback = NULL; |
2408 | 223k | ret->closecallback = NULL; |
2409 | 223k | ret->context = NULL; |
2410 | 223k | ret->written = 0; |
2411 | | |
2412 | 223k | return(ret); |
2413 | 223k | } |
2414 | | |
2415 | | /** |
2416 | | * xmlAllocOutputBufferInternal: |
2417 | | * @encoder: the encoding converter or NULL |
2418 | | * |
2419 | | * Create a buffered parser output |
2420 | | * |
2421 | | * Returns the new parser output or NULL |
2422 | | */ |
2423 | | xmlOutputBufferPtr |
2424 | 0 | xmlAllocOutputBufferInternal(xmlCharEncodingHandlerPtr encoder) { |
2425 | 0 | xmlOutputBufferPtr ret; |
2426 | |
|
2427 | 0 | ret = (xmlOutputBufferPtr) xmlMalloc(sizeof(xmlOutputBuffer)); |
2428 | 0 | if (ret == NULL) { |
2429 | 0 | xmlIOErrMemory("creating output buffer"); |
2430 | 0 | return(NULL); |
2431 | 0 | } |
2432 | 0 | memset(ret, 0, sizeof(xmlOutputBuffer)); |
2433 | 0 | ret->buffer = xmlBufCreate(); |
2434 | 0 | if (ret->buffer == NULL) { |
2435 | 0 | xmlFree(ret); |
2436 | 0 | return(NULL); |
2437 | 0 | } |
2438 | | |
2439 | | |
2440 | | /* |
2441 | | * For conversion buffers we use the special IO handling |
2442 | | */ |
2443 | 0 | xmlBufSetAllocationScheme(ret->buffer, XML_BUFFER_ALLOC_IO); |
2444 | |
|
2445 | 0 | ret->encoder = encoder; |
2446 | 0 | if (encoder != NULL) { |
2447 | 0 | ret->conv = xmlBufCreateSize(4000); |
2448 | 0 | if (ret->conv == NULL) { |
2449 | 0 | xmlBufFree(ret->buffer); |
2450 | 0 | xmlFree(ret); |
2451 | 0 | return(NULL); |
2452 | 0 | } |
2453 | | |
2454 | | /* |
2455 | | * This call is designed to initiate the encoder state |
2456 | | */ |
2457 | 0 | xmlCharEncOutput(ret, 1); |
2458 | 0 | } else |
2459 | 0 | ret->conv = NULL; |
2460 | 0 | ret->writecallback = NULL; |
2461 | 0 | ret->closecallback = NULL; |
2462 | 0 | ret->context = NULL; |
2463 | 0 | ret->written = 0; |
2464 | |
|
2465 | 0 | return(ret); |
2466 | 0 | } |
2467 | | |
2468 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2469 | | |
2470 | | /** |
2471 | | * xmlFreeParserInputBuffer: |
2472 | | * @in: a buffered parser input |
2473 | | * |
2474 | | * Free up the memory used by a buffered parser input |
2475 | | */ |
2476 | | void |
2477 | 7.55M | xmlFreeParserInputBuffer(xmlParserInputBufferPtr in) { |
2478 | 7.55M | if (in == NULL) return; |
2479 | | |
2480 | 7.55M | if (in->raw) { |
2481 | 85.5k | xmlBufFree(in->raw); |
2482 | 85.5k | in->raw = NULL; |
2483 | 85.5k | } |
2484 | 7.55M | if (in->encoder != NULL) { |
2485 | 85.5k | xmlCharEncCloseFunc(in->encoder); |
2486 | 85.5k | } |
2487 | 7.55M | if (in->closecallback != NULL) { |
2488 | 0 | in->closecallback(in->context); |
2489 | 0 | } |
2490 | 7.55M | if (in->buffer != NULL) { |
2491 | 7.55M | xmlBufFree(in->buffer); |
2492 | 7.55M | in->buffer = NULL; |
2493 | 7.55M | } |
2494 | | |
2495 | 7.55M | xmlFree(in); |
2496 | 7.55M | } |
2497 | | |
2498 | | #ifdef LIBXML_OUTPUT_ENABLED |
2499 | | /** |
2500 | | * xmlOutputBufferClose: |
2501 | | * @out: a buffered output |
2502 | | * |
2503 | | * flushes and close the output I/O channel |
2504 | | * and free up all the associated resources |
2505 | | * |
2506 | | * Returns the number of byte written or -1 in case of error. |
2507 | | */ |
2508 | | int |
2509 | | xmlOutputBufferClose(xmlOutputBufferPtr out) |
2510 | 223k | { |
2511 | 223k | int written; |
2512 | 223k | int err_rc = 0; |
2513 | | |
2514 | 223k | if (out == NULL) |
2515 | 0 | return (-1); |
2516 | 223k | if (out->writecallback != NULL) |
2517 | 0 | xmlOutputBufferFlush(out); |
2518 | 223k | if (out->closecallback != NULL) { |
2519 | 0 | err_rc = out->closecallback(out->context); |
2520 | 0 | } |
2521 | 223k | written = out->written; |
2522 | 223k | if (out->conv) { |
2523 | 14.8k | xmlBufFree(out->conv); |
2524 | 14.8k | out->conv = NULL; |
2525 | 14.8k | } |
2526 | 223k | if (out->encoder != NULL) { |
2527 | 14.8k | xmlCharEncCloseFunc(out->encoder); |
2528 | 14.8k | } |
2529 | 223k | if (out->buffer != NULL) { |
2530 | 223k | xmlBufFree(out->buffer); |
2531 | 223k | out->buffer = NULL; |
2532 | 223k | } |
2533 | | |
2534 | 223k | if (out->error) |
2535 | 667 | err_rc = -1; |
2536 | 223k | xmlFree(out); |
2537 | 223k | return ((err_rc == 0) ? written : err_rc); |
2538 | 223k | } |
2539 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2540 | | |
2541 | | xmlParserInputBufferPtr |
2542 | 0 | __xmlParserInputBufferCreateFilename(const char *URI, xmlCharEncoding enc) { |
2543 | 0 | xmlParserInputBufferPtr ret; |
2544 | 0 | int i = 0; |
2545 | 0 | void *context = NULL; |
2546 | |
|
2547 | 0 | if (xmlInputCallbackInitialized == 0) |
2548 | 0 | xmlRegisterDefaultInputCallbacks(); |
2549 | |
|
2550 | 0 | if (URI == NULL) return(NULL); |
2551 | | |
2552 | | /* |
2553 | | * Try to find one of the input accept method accepting that scheme |
2554 | | * Go in reverse to give precedence to user defined handlers. |
2555 | | */ |
2556 | 0 | if (context == NULL) { |
2557 | 0 | for (i = xmlInputCallbackNr - 1;i >= 0;i--) { |
2558 | 0 | if ((xmlInputCallbackTable[i].matchcallback != NULL) && |
2559 | 0 | (xmlInputCallbackTable[i].matchcallback(URI) != 0)) { |
2560 | 0 | context = xmlInputCallbackTable[i].opencallback(URI); |
2561 | 0 | if (context != NULL) { |
2562 | 0 | break; |
2563 | 0 | } |
2564 | 0 | } |
2565 | 0 | } |
2566 | 0 | } |
2567 | 0 | if (context == NULL) { |
2568 | 0 | return(NULL); |
2569 | 0 | } |
2570 | | |
2571 | | /* |
2572 | | * Allocate the Input buffer front-end. |
2573 | | */ |
2574 | 0 | ret = xmlAllocParserInputBuffer(enc); |
2575 | 0 | if (ret != NULL) { |
2576 | 0 | ret->context = context; |
2577 | 0 | ret->readcallback = xmlInputCallbackTable[i].readcallback; |
2578 | 0 | ret->closecallback = xmlInputCallbackTable[i].closecallback; |
2579 | 0 | #ifdef LIBXML_ZLIB_ENABLED |
2580 | 0 | if ((xmlInputCallbackTable[i].opencallback == xmlGzfileOpen) && |
2581 | 0 | (strcmp(URI, "-") != 0)) { |
2582 | 0 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1230 |
2583 | 0 | ret->compressed = !gzdirect(context); |
2584 | | #else |
2585 | | if (((z_stream *)context)->avail_in > 4) { |
2586 | | char *cptr, buff4[4]; |
2587 | | cptr = (char *) ((z_stream *)context)->next_in; |
2588 | | if (gzread(context, buff4, 4) == 4) { |
2589 | | if (strncmp(buff4, cptr, 4) == 0) |
2590 | | ret->compressed = 0; |
2591 | | else |
2592 | | ret->compressed = 1; |
2593 | | gzrewind(context); |
2594 | | } |
2595 | | } |
2596 | | #endif |
2597 | 0 | } |
2598 | 0 | #endif |
2599 | 0 | #ifdef LIBXML_LZMA_ENABLED |
2600 | 0 | if ((xmlInputCallbackTable[i].opencallback == xmlXzfileOpen) && |
2601 | 0 | (strcmp(URI, "-") != 0)) { |
2602 | 0 | ret->compressed = __libxml2_xzcompressed(context); |
2603 | 0 | } |
2604 | 0 | #endif |
2605 | 0 | } |
2606 | 0 | else |
2607 | 0 | xmlInputCallbackTable[i].closecallback (context); |
2608 | |
|
2609 | 0 | return(ret); |
2610 | 0 | } |
2611 | | |
2612 | | /** |
2613 | | * xmlParserInputBufferCreateFilename: |
2614 | | * @URI: a C string containing the URI or filename |
2615 | | * @enc: the charset encoding if known |
2616 | | * |
2617 | | * Create a buffered parser input for the progressive parsing of a file |
2618 | | * If filename is "-' then we use stdin as the input. |
2619 | | * Automatic support for ZLIB/Compress compressed document is provided |
2620 | | * by default if found at compile-time. |
2621 | | * Do an encoding check if enc == XML_CHAR_ENCODING_NONE |
2622 | | * |
2623 | | * Returns the new parser input or NULL |
2624 | | */ |
2625 | | xmlParserInputBufferPtr |
2626 | 0 | xmlParserInputBufferCreateFilename(const char *URI, xmlCharEncoding enc) { |
2627 | 0 | if ((xmlParserInputBufferCreateFilenameValue)) { |
2628 | 0 | return xmlParserInputBufferCreateFilenameValue(URI, enc); |
2629 | 0 | } |
2630 | 0 | return __xmlParserInputBufferCreateFilename(URI, enc); |
2631 | 0 | } |
2632 | | |
2633 | | #ifdef LIBXML_OUTPUT_ENABLED |
2634 | | xmlOutputBufferPtr |
2635 | | __xmlOutputBufferCreateFilename(const char *URI, |
2636 | | xmlCharEncodingHandlerPtr encoder, |
2637 | 0 | int compression ATTRIBUTE_UNUSED) { |
2638 | 0 | xmlOutputBufferPtr ret; |
2639 | 0 | xmlURIPtr puri; |
2640 | 0 | int i = 0; |
2641 | 0 | void *context = NULL; |
2642 | 0 | char *unescaped = NULL; |
2643 | 0 | #ifdef LIBXML_ZLIB_ENABLED |
2644 | 0 | int is_file_uri = 1; |
2645 | 0 | #endif |
2646 | |
|
2647 | 0 | if (xmlOutputCallbackInitialized == 0) |
2648 | 0 | xmlRegisterDefaultOutputCallbacks(); |
2649 | |
|
2650 | 0 | if (URI == NULL) return(NULL); |
2651 | | |
2652 | 0 | puri = xmlParseURI(URI); |
2653 | 0 | if (puri != NULL) { |
2654 | 0 | #ifdef LIBXML_ZLIB_ENABLED |
2655 | 0 | if ((puri->scheme != NULL) && |
2656 | 0 | (!xmlStrEqual(BAD_CAST puri->scheme, BAD_CAST "file"))) |
2657 | 0 | is_file_uri = 0; |
2658 | 0 | #endif |
2659 | | /* |
2660 | | * try to limit the damages of the URI unescaping code. |
2661 | | */ |
2662 | 0 | if ((puri->scheme == NULL) || |
2663 | 0 | (xmlStrEqual(BAD_CAST puri->scheme, BAD_CAST "file"))) |
2664 | 0 | unescaped = xmlURIUnescapeString(URI, 0, NULL); |
2665 | 0 | xmlFreeURI(puri); |
2666 | 0 | } |
2667 | | |
2668 | | /* |
2669 | | * Try to find one of the output accept method accepting that scheme |
2670 | | * Go in reverse to give precedence to user defined handlers. |
2671 | | * try with an unescaped version of the URI |
2672 | | */ |
2673 | 0 | if (unescaped != NULL) { |
2674 | 0 | #ifdef LIBXML_ZLIB_ENABLED |
2675 | 0 | if ((compression > 0) && (compression <= 9) && (is_file_uri == 1)) { |
2676 | 0 | context = xmlGzfileOpenW(unescaped, compression); |
2677 | 0 | if (context != NULL) { |
2678 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
2679 | 0 | if (ret != NULL) { |
2680 | 0 | ret->context = context; |
2681 | 0 | ret->writecallback = xmlGzfileWrite; |
2682 | 0 | ret->closecallback = xmlGzfileClose; |
2683 | 0 | } |
2684 | 0 | xmlFree(unescaped); |
2685 | 0 | return(ret); |
2686 | 0 | } |
2687 | 0 | } |
2688 | 0 | #endif |
2689 | 0 | for (i = xmlOutputCallbackNr - 1;i >= 0;i--) { |
2690 | 0 | if ((xmlOutputCallbackTable[i].matchcallback != NULL) && |
2691 | 0 | (xmlOutputCallbackTable[i].matchcallback(unescaped) != 0)) { |
2692 | | #if defined(LIBXML_HTTP_ENABLED) && defined(LIBXML_ZLIB_ENABLED) |
2693 | | /* Need to pass compression parameter into HTTP open calls */ |
2694 | | if (xmlOutputCallbackTable[i].matchcallback == xmlIOHTTPMatch) |
2695 | | context = xmlIOHTTPOpenW(unescaped, compression); |
2696 | | else |
2697 | | #endif |
2698 | 0 | context = xmlOutputCallbackTable[i].opencallback(unescaped); |
2699 | 0 | if (context != NULL) |
2700 | 0 | break; |
2701 | 0 | } |
2702 | 0 | } |
2703 | 0 | xmlFree(unescaped); |
2704 | 0 | } |
2705 | | |
2706 | | /* |
2707 | | * If this failed try with a non-escaped URI this may be a strange |
2708 | | * filename |
2709 | | */ |
2710 | 0 | if (context == NULL) { |
2711 | 0 | #ifdef LIBXML_ZLIB_ENABLED |
2712 | 0 | if ((compression > 0) && (compression <= 9) && (is_file_uri == 1)) { |
2713 | 0 | context = xmlGzfileOpenW(URI, compression); |
2714 | 0 | if (context != NULL) { |
2715 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
2716 | 0 | if (ret != NULL) { |
2717 | 0 | ret->context = context; |
2718 | 0 | ret->writecallback = xmlGzfileWrite; |
2719 | 0 | ret->closecallback = xmlGzfileClose; |
2720 | 0 | } |
2721 | 0 | else |
2722 | 0 | xmlGzfileClose(context); |
2723 | 0 | return(ret); |
2724 | 0 | } |
2725 | 0 | } |
2726 | 0 | #endif |
2727 | 0 | for (i = xmlOutputCallbackNr - 1;i >= 0;i--) { |
2728 | 0 | if ((xmlOutputCallbackTable[i].matchcallback != NULL) && |
2729 | 0 | (xmlOutputCallbackTable[i].matchcallback(URI) != 0)) { |
2730 | | #if defined(LIBXML_HTTP_ENABLED) && defined(LIBXML_ZLIB_ENABLED) |
2731 | | /* Need to pass compression parameter into HTTP open calls */ |
2732 | | if (xmlOutputCallbackTable[i].matchcallback == xmlIOHTTPMatch) |
2733 | | context = xmlIOHTTPOpenW(URI, compression); |
2734 | | else |
2735 | | #endif |
2736 | 0 | context = xmlOutputCallbackTable[i].opencallback(URI); |
2737 | 0 | if (context != NULL) |
2738 | 0 | break; |
2739 | 0 | } |
2740 | 0 | } |
2741 | 0 | } |
2742 | | |
2743 | 0 | if (context == NULL) { |
2744 | 0 | return(NULL); |
2745 | 0 | } |
2746 | | |
2747 | | /* |
2748 | | * Allocate the Output buffer front-end. |
2749 | | */ |
2750 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
2751 | 0 | if (ret != NULL) { |
2752 | 0 | ret->context = context; |
2753 | 0 | ret->writecallback = xmlOutputCallbackTable[i].writecallback; |
2754 | 0 | ret->closecallback = xmlOutputCallbackTable[i].closecallback; |
2755 | 0 | } |
2756 | 0 | return(ret); |
2757 | 0 | } |
2758 | | |
2759 | | /** |
2760 | | * xmlOutputBufferCreateFilename: |
2761 | | * @URI: a C string containing the URI or filename |
2762 | | * @encoder: the encoding converter or NULL |
2763 | | * @compression: the compression ration (0 none, 9 max). |
2764 | | * |
2765 | | * Create a buffered output for the progressive saving of a file |
2766 | | * If filename is "-' then we use stdout as the output. |
2767 | | * Automatic support for ZLIB/Compress compressed document is provided |
2768 | | * by default if found at compile-time. |
2769 | | * TODO: currently if compression is set, the library only support |
2770 | | * writing to a local file. |
2771 | | * |
2772 | | * Returns the new output or NULL |
2773 | | */ |
2774 | | xmlOutputBufferPtr |
2775 | | xmlOutputBufferCreateFilename(const char *URI, |
2776 | | xmlCharEncodingHandlerPtr encoder, |
2777 | 0 | int compression ATTRIBUTE_UNUSED) { |
2778 | 0 | if ((xmlOutputBufferCreateFilenameValue)) { |
2779 | 0 | return xmlOutputBufferCreateFilenameValue(URI, encoder, compression); |
2780 | 0 | } |
2781 | 0 | return __xmlOutputBufferCreateFilename(URI, encoder, compression); |
2782 | 0 | } |
2783 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2784 | | |
2785 | | /** |
2786 | | * xmlParserInputBufferCreateFile: |
2787 | | * @file: a FILE* |
2788 | | * @enc: the charset encoding if known |
2789 | | * |
2790 | | * Create a buffered parser input for the progressive parsing of a FILE * |
2791 | | * buffered C I/O |
2792 | | * |
2793 | | * Returns the new parser input or NULL |
2794 | | */ |
2795 | | xmlParserInputBufferPtr |
2796 | 0 | xmlParserInputBufferCreateFile(FILE *file, xmlCharEncoding enc) { |
2797 | 0 | xmlParserInputBufferPtr ret; |
2798 | |
|
2799 | 0 | if (xmlInputCallbackInitialized == 0) |
2800 | 0 | xmlRegisterDefaultInputCallbacks(); |
2801 | |
|
2802 | 0 | if (file == NULL) return(NULL); |
2803 | | |
2804 | 0 | ret = xmlAllocParserInputBuffer(enc); |
2805 | 0 | if (ret != NULL) { |
2806 | 0 | ret->context = file; |
2807 | 0 | ret->readcallback = xmlFileRead; |
2808 | 0 | ret->closecallback = xmlFileFlush; |
2809 | 0 | } |
2810 | |
|
2811 | 0 | return(ret); |
2812 | 0 | } |
2813 | | |
2814 | | #ifdef LIBXML_OUTPUT_ENABLED |
2815 | | /** |
2816 | | * xmlOutputBufferCreateFile: |
2817 | | * @file: a FILE* |
2818 | | * @encoder: the encoding converter or NULL |
2819 | | * |
2820 | | * Create a buffered output for the progressive saving to a FILE * |
2821 | | * buffered C I/O |
2822 | | * |
2823 | | * Returns the new parser output or NULL |
2824 | | */ |
2825 | | xmlOutputBufferPtr |
2826 | 0 | xmlOutputBufferCreateFile(FILE *file, xmlCharEncodingHandlerPtr encoder) { |
2827 | 0 | xmlOutputBufferPtr ret; |
2828 | |
|
2829 | 0 | if (xmlOutputCallbackInitialized == 0) |
2830 | 0 | xmlRegisterDefaultOutputCallbacks(); |
2831 | |
|
2832 | 0 | if (file == NULL) return(NULL); |
2833 | | |
2834 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
2835 | 0 | if (ret != NULL) { |
2836 | 0 | ret->context = file; |
2837 | 0 | ret->writecallback = xmlFileWrite; |
2838 | 0 | ret->closecallback = xmlFileFlush; |
2839 | 0 | } |
2840 | |
|
2841 | 0 | return(ret); |
2842 | 0 | } |
2843 | | |
2844 | | /** |
2845 | | * xmlOutputBufferCreateBuffer: |
2846 | | * @buffer: a xmlBufferPtr |
2847 | | * @encoder: the encoding converter or NULL |
2848 | | * |
2849 | | * Create a buffered output for the progressive saving to a xmlBuffer |
2850 | | * |
2851 | | * Returns the new parser output or NULL |
2852 | | */ |
2853 | | xmlOutputBufferPtr |
2854 | | xmlOutputBufferCreateBuffer(xmlBufferPtr buffer, |
2855 | 0 | xmlCharEncodingHandlerPtr encoder) { |
2856 | 0 | xmlOutputBufferPtr ret; |
2857 | |
|
2858 | 0 | if (buffer == NULL) return(NULL); |
2859 | | |
2860 | 0 | ret = xmlOutputBufferCreateIO(xmlBufferWrite, NULL, (void *) buffer, |
2861 | 0 | encoder); |
2862 | |
|
2863 | 0 | return(ret); |
2864 | 0 | } |
2865 | | |
2866 | | /** |
2867 | | * xmlOutputBufferGetContent: |
2868 | | * @out: an xmlOutputBufferPtr |
2869 | | * |
2870 | | * Gives a pointer to the data currently held in the output buffer |
2871 | | * |
2872 | | * Returns a pointer to the data or NULL in case of error |
2873 | | */ |
2874 | | const xmlChar * |
2875 | 0 | xmlOutputBufferGetContent(xmlOutputBufferPtr out) { |
2876 | 0 | if ((out == NULL) || (out->buffer == NULL)) |
2877 | 0 | return(NULL); |
2878 | | |
2879 | 0 | return(xmlBufContent(out->buffer)); |
2880 | 0 | } |
2881 | | |
2882 | | /** |
2883 | | * xmlOutputBufferGetSize: |
2884 | | * @out: an xmlOutputBufferPtr |
2885 | | * |
2886 | | * Gives the length of the data currently held in the output buffer |
2887 | | * |
2888 | | * Returns 0 in case or error or no data is held, the size otherwise |
2889 | | */ |
2890 | | size_t |
2891 | 0 | xmlOutputBufferGetSize(xmlOutputBufferPtr out) { |
2892 | 0 | if ((out == NULL) || (out->buffer == NULL)) |
2893 | 0 | return(0); |
2894 | | |
2895 | 0 | return(xmlBufUse(out->buffer)); |
2896 | 0 | } |
2897 | | |
2898 | | |
2899 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
2900 | | |
2901 | | /** |
2902 | | * xmlParserInputBufferCreateFd: |
2903 | | * @fd: a file descriptor number |
2904 | | * @enc: the charset encoding if known |
2905 | | * |
2906 | | * Create a buffered parser input for the progressive parsing for the input |
2907 | | * from a file descriptor |
2908 | | * |
2909 | | * Returns the new parser input or NULL |
2910 | | */ |
2911 | | xmlParserInputBufferPtr |
2912 | 0 | xmlParserInputBufferCreateFd(int fd, xmlCharEncoding enc) { |
2913 | 0 | xmlParserInputBufferPtr ret; |
2914 | |
|
2915 | 0 | if (fd < 0) return(NULL); |
2916 | | |
2917 | 0 | ret = xmlAllocParserInputBuffer(enc); |
2918 | 0 | if (ret != NULL) { |
2919 | 0 | ret->context = (void *) (ptrdiff_t) fd; |
2920 | 0 | ret->readcallback = xmlFdRead; |
2921 | 0 | ret->closecallback = xmlFdClose; |
2922 | 0 | } |
2923 | |
|
2924 | 0 | return(ret); |
2925 | 0 | } |
2926 | | |
2927 | | /** |
2928 | | * xmlParserInputBufferCreateMem: |
2929 | | * @mem: the memory input |
2930 | | * @size: the length of the memory block |
2931 | | * @enc: the charset encoding if known |
2932 | | * |
2933 | | * Create a buffered parser input for the progressive parsing for the input |
2934 | | * from a memory area. |
2935 | | * |
2936 | | * Returns the new parser input or NULL |
2937 | | */ |
2938 | | xmlParserInputBufferPtr |
2939 | 6.49M | xmlParserInputBufferCreateMem(const char *mem, int size, xmlCharEncoding enc) { |
2940 | 6.49M | xmlParserInputBufferPtr ret; |
2941 | 6.49M | int errcode; |
2942 | | |
2943 | 6.49M | if (size < 0) return(NULL); |
2944 | 6.49M | if (mem == NULL) return(NULL); |
2945 | | |
2946 | 6.49M | ret = xmlAllocParserInputBuffer(enc); |
2947 | 6.49M | if (ret != NULL) { |
2948 | 6.49M | ret->context = (void *) mem; |
2949 | 6.49M | ret->readcallback = xmlInputReadCallbackNop; |
2950 | 6.49M | ret->closecallback = NULL; |
2951 | 6.49M | errcode = xmlBufAdd(ret->buffer, (const xmlChar *) mem, size); |
2952 | 6.49M | if (errcode != 0) { |
2953 | 0 | xmlFree(ret); |
2954 | 0 | return(NULL); |
2955 | 0 | } |
2956 | 6.49M | } |
2957 | | |
2958 | 6.49M | return(ret); |
2959 | 6.49M | } |
2960 | | |
2961 | | /** |
2962 | | * xmlParserInputBufferCreateStatic: |
2963 | | * @mem: the memory input |
2964 | | * @size: the length of the memory block |
2965 | | * @enc: the charset encoding if known |
2966 | | * |
2967 | | * Create a buffered parser input for the progressive parsing for the input |
2968 | | * from an immutable memory area. This will not copy the memory area to |
2969 | | * the buffer, but the memory is expected to be available until the end of |
2970 | | * the parsing, this is useful for example when using mmap'ed file. |
2971 | | * |
2972 | | * Returns the new parser input or NULL |
2973 | | */ |
2974 | | xmlParserInputBufferPtr |
2975 | | xmlParserInputBufferCreateStatic(const char *mem, int size, |
2976 | 354k | xmlCharEncoding enc) { |
2977 | 354k | xmlParserInputBufferPtr ret; |
2978 | | |
2979 | 354k | if (size < 0) return(NULL); |
2980 | 354k | if (mem == NULL) return(NULL); |
2981 | | |
2982 | 354k | ret = (xmlParserInputBufferPtr) xmlMalloc(sizeof(xmlParserInputBuffer)); |
2983 | 354k | if (ret == NULL) { |
2984 | 0 | xmlIOErrMemory("creating input buffer"); |
2985 | 0 | return(NULL); |
2986 | 0 | } |
2987 | 354k | memset(ret, 0, sizeof(xmlParserInputBuffer)); |
2988 | 354k | ret->buffer = xmlBufCreateStatic((void *)mem, size); |
2989 | 354k | if (ret->buffer == NULL) { |
2990 | 0 | xmlFree(ret); |
2991 | 0 | return(NULL); |
2992 | 0 | } |
2993 | 354k | ret->encoder = xmlGetCharEncodingHandler(enc); |
2994 | 354k | if (ret->encoder != NULL) |
2995 | 0 | ret->raw = xmlBufCreateSize(2 * xmlDefaultBufferSize); |
2996 | 354k | else |
2997 | 354k | ret->raw = NULL; |
2998 | 354k | ret->compressed = -1; |
2999 | 354k | ret->context = (void *) mem; |
3000 | 354k | ret->readcallback = NULL; |
3001 | 354k | ret->closecallback = NULL; |
3002 | | |
3003 | 354k | return(ret); |
3004 | 354k | } |
3005 | | |
3006 | | #ifdef LIBXML_OUTPUT_ENABLED |
3007 | | /** |
3008 | | * xmlOutputBufferCreateFd: |
3009 | | * @fd: a file descriptor number |
3010 | | * @encoder: the encoding converter or NULL |
3011 | | * |
3012 | | * Create a buffered output for the progressive saving |
3013 | | * to a file descriptor |
3014 | | * |
3015 | | * Returns the new parser output or NULL |
3016 | | */ |
3017 | | xmlOutputBufferPtr |
3018 | 0 | xmlOutputBufferCreateFd(int fd, xmlCharEncodingHandlerPtr encoder) { |
3019 | 0 | xmlOutputBufferPtr ret; |
3020 | |
|
3021 | 0 | if (fd < 0) return(NULL); |
3022 | | |
3023 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
3024 | 0 | if (ret != NULL) { |
3025 | 0 | ret->context = (void *) (ptrdiff_t) fd; |
3026 | 0 | ret->writecallback = xmlFdWrite; |
3027 | 0 | ret->closecallback = NULL; |
3028 | 0 | } |
3029 | |
|
3030 | 0 | return(ret); |
3031 | 0 | } |
3032 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
3033 | | |
3034 | | /** |
3035 | | * xmlParserInputBufferCreateIO: |
3036 | | * @ioread: an I/O read function |
3037 | | * @ioclose: an I/O close function |
3038 | | * @ioctx: an I/O handler |
3039 | | * @enc: the charset encoding if known |
3040 | | * |
3041 | | * Create a buffered parser input for the progressive parsing for the input |
3042 | | * from an I/O handler |
3043 | | * |
3044 | | * Returns the new parser input or NULL |
3045 | | */ |
3046 | | xmlParserInputBufferPtr |
3047 | | xmlParserInputBufferCreateIO(xmlInputReadCallback ioread, |
3048 | 0 | xmlInputCloseCallback ioclose, void *ioctx, xmlCharEncoding enc) { |
3049 | 0 | xmlParserInputBufferPtr ret; |
3050 | |
|
3051 | 0 | if (ioread == NULL) return(NULL); |
3052 | | |
3053 | 0 | ret = xmlAllocParserInputBuffer(enc); |
3054 | 0 | if (ret != NULL) { |
3055 | 0 | ret->context = (void *) ioctx; |
3056 | 0 | ret->readcallback = ioread; |
3057 | 0 | ret->closecallback = ioclose; |
3058 | 0 | } |
3059 | |
|
3060 | 0 | return(ret); |
3061 | 0 | } |
3062 | | |
3063 | | #ifdef LIBXML_OUTPUT_ENABLED |
3064 | | /** |
3065 | | * xmlOutputBufferCreateIO: |
3066 | | * @iowrite: an I/O write function |
3067 | | * @ioclose: an I/O close function |
3068 | | * @ioctx: an I/O handler |
3069 | | * @encoder: the charset encoding if known |
3070 | | * |
3071 | | * Create a buffered output for the progressive saving |
3072 | | * to an I/O handler |
3073 | | * |
3074 | | * Returns the new parser output or NULL |
3075 | | */ |
3076 | | xmlOutputBufferPtr |
3077 | | xmlOutputBufferCreateIO(xmlOutputWriteCallback iowrite, |
3078 | | xmlOutputCloseCallback ioclose, void *ioctx, |
3079 | 0 | xmlCharEncodingHandlerPtr encoder) { |
3080 | 0 | xmlOutputBufferPtr ret; |
3081 | |
|
3082 | 0 | if (iowrite == NULL) return(NULL); |
3083 | | |
3084 | 0 | ret = xmlAllocOutputBufferInternal(encoder); |
3085 | 0 | if (ret != NULL) { |
3086 | 0 | ret->context = (void *) ioctx; |
3087 | 0 | ret->writecallback = iowrite; |
3088 | 0 | ret->closecallback = ioclose; |
3089 | 0 | } |
3090 | |
|
3091 | 0 | return(ret); |
3092 | 0 | } |
3093 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
3094 | | |
3095 | | /** |
3096 | | * xmlParserInputBufferCreateFilenameDefault: |
3097 | | * @func: function pointer to the new ParserInputBufferCreateFilenameFunc |
3098 | | * |
3099 | | * Registers a callback for URI input file handling |
3100 | | * |
3101 | | * Returns the old value of the registration function |
3102 | | */ |
3103 | | xmlParserInputBufferCreateFilenameFunc |
3104 | | xmlParserInputBufferCreateFilenameDefault(xmlParserInputBufferCreateFilenameFunc func) |
3105 | 0 | { |
3106 | 0 | xmlParserInputBufferCreateFilenameFunc old = xmlParserInputBufferCreateFilenameValue; |
3107 | 0 | if (old == NULL) { |
3108 | 0 | old = __xmlParserInputBufferCreateFilename; |
3109 | 0 | } |
3110 | |
|
3111 | 0 | xmlParserInputBufferCreateFilenameValue = func; |
3112 | 0 | return(old); |
3113 | 0 | } |
3114 | | |
3115 | | /** |
3116 | | * xmlOutputBufferCreateFilenameDefault: |
3117 | | * @func: function pointer to the new OutputBufferCreateFilenameFunc |
3118 | | * |
3119 | | * Registers a callback for URI output file handling |
3120 | | * |
3121 | | * Returns the old value of the registration function |
3122 | | */ |
3123 | | xmlOutputBufferCreateFilenameFunc |
3124 | | xmlOutputBufferCreateFilenameDefault(xmlOutputBufferCreateFilenameFunc func) |
3125 | 0 | { |
3126 | 0 | xmlOutputBufferCreateFilenameFunc old = xmlOutputBufferCreateFilenameValue; |
3127 | 0 | #ifdef LIBXML_OUTPUT_ENABLED |
3128 | 0 | if (old == NULL) { |
3129 | 0 | old = __xmlOutputBufferCreateFilename; |
3130 | 0 | } |
3131 | 0 | #endif |
3132 | 0 | xmlOutputBufferCreateFilenameValue = func; |
3133 | 0 | return(old); |
3134 | 0 | } |
3135 | | |
3136 | | /** |
3137 | | * xmlParserInputBufferPush: |
3138 | | * @in: a buffered parser input |
3139 | | * @len: the size in bytes of the array. |
3140 | | * @buf: an char array |
3141 | | * |
3142 | | * Push the content of the arry in the input buffer |
3143 | | * This routine handle the I18N transcoding to internal UTF-8 |
3144 | | * This is used when operating the parser in progressive (push) mode. |
3145 | | * |
3146 | | * Returns the number of chars read and stored in the buffer, or -1 |
3147 | | * in case of error. |
3148 | | */ |
3149 | | int |
3150 | | xmlParserInputBufferPush(xmlParserInputBufferPtr in, |
3151 | 10.5M | int len, const char *buf) { |
3152 | 10.5M | int nbchars = 0; |
3153 | 10.5M | int ret; |
3154 | | |
3155 | 10.5M | if (len < 0) return(0); |
3156 | 10.5M | if ((in == NULL) || (in->error)) return(-1); |
3157 | 10.4M | if (in->encoder != NULL) { |
3158 | 2.16M | unsigned int use; |
3159 | | |
3160 | | /* |
3161 | | * Store the data in the incoming raw buffer |
3162 | | */ |
3163 | 2.16M | if (in->raw == NULL) { |
3164 | 0 | in->raw = xmlBufCreate(); |
3165 | 0 | } |
3166 | 2.16M | ret = xmlBufAdd(in->raw, (const xmlChar *) buf, len); |
3167 | 2.16M | if (ret != 0) |
3168 | 0 | return(-1); |
3169 | | |
3170 | | /* |
3171 | | * convert as much as possible to the parser reading buffer. |
3172 | | */ |
3173 | 2.16M | use = xmlBufUse(in->raw); |
3174 | 2.16M | nbchars = xmlCharEncInput(in, 1); |
3175 | 2.16M | if (nbchars < 0) { |
3176 | 4.82k | xmlIOErr(XML_IO_ENCODER, NULL); |
3177 | 4.82k | in->error = XML_IO_ENCODER; |
3178 | 4.82k | return(-1); |
3179 | 4.82k | } |
3180 | 2.16M | in->rawconsumed += (use - xmlBufUse(in->raw)); |
3181 | 8.32M | } else { |
3182 | 8.32M | nbchars = len; |
3183 | 8.32M | ret = xmlBufAdd(in->buffer, (xmlChar *) buf, nbchars); |
3184 | 8.32M | if (ret != 0) |
3185 | 0 | return(-1); |
3186 | 8.32M | } |
3187 | | #ifdef DEBUG_INPUT |
3188 | | xmlGenericError(xmlGenericErrorContext, |
3189 | | "I/O: pushed %d chars, buffer %d/%d\n", |
3190 | | nbchars, xmlBufUse(in->buffer), xmlBufLength(in->buffer)); |
3191 | | #endif |
3192 | 10.4M | return(nbchars); |
3193 | 10.4M | } |
3194 | | |
3195 | | /** |
3196 | | * endOfInput: |
3197 | | * |
3198 | | * When reading from an Input channel indicated end of file or error |
3199 | | * don't reread from it again. |
3200 | | */ |
3201 | | static int |
3202 | | endOfInput (void * context ATTRIBUTE_UNUSED, |
3203 | | char * buffer ATTRIBUTE_UNUSED, |
3204 | 175M | int len ATTRIBUTE_UNUSED) { |
3205 | 175M | return(0); |
3206 | 175M | } |
3207 | | |
3208 | | /** |
3209 | | * xmlParserInputBufferGrow: |
3210 | | * @in: a buffered parser input |
3211 | | * @len: indicative value of the amount of chars to read |
3212 | | * |
3213 | | * Grow up the content of the input buffer, the old data are preserved |
3214 | | * This routine handle the I18N transcoding to internal UTF-8 |
3215 | | * This routine is used when operating the parser in normal (pull) mode |
3216 | | * |
3217 | | * TODO: one should be able to remove one extra copy by copying directly |
3218 | | * onto in->buffer or in->raw |
3219 | | * |
3220 | | * Returns the number of chars read and stored in the buffer, or -1 |
3221 | | * in case of error. |
3222 | | */ |
3223 | | int |
3224 | 179M | xmlParserInputBufferGrow(xmlParserInputBufferPtr in, int len) { |
3225 | 179M | char *buffer = NULL; |
3226 | 179M | int res = 0; |
3227 | 179M | int nbchars = 0; |
3228 | | |
3229 | 179M | if ((in == NULL) || (in->error)) return(-1); |
3230 | 179M | if ((len <= MINLEN) && (len != 4)) |
3231 | 179M | len = MINLEN; |
3232 | | |
3233 | 179M | if (xmlBufAvail(in->buffer) <= 0) { |
3234 | 27 | xmlIOErr(XML_IO_BUFFER_FULL, NULL); |
3235 | 27 | in->error = XML_IO_BUFFER_FULL; |
3236 | 27 | return(-1); |
3237 | 27 | } |
3238 | | |
3239 | 179M | if (xmlBufGrow(in->buffer, len + 1) < 0) { |
3240 | 0 | xmlIOErrMemory("growing input buffer"); |
3241 | 0 | in->error = XML_ERR_NO_MEMORY; |
3242 | 0 | return(-1); |
3243 | 0 | } |
3244 | 179M | buffer = (char *)xmlBufEnd(in->buffer); |
3245 | | |
3246 | | /* |
3247 | | * Call the read method for this I/O type. |
3248 | | */ |
3249 | 179M | if (in->readcallback != NULL) { |
3250 | 179M | res = in->readcallback(in->context, &buffer[0], len); |
3251 | 179M | if (res <= 0) |
3252 | 179M | in->readcallback = endOfInput; |
3253 | 179M | } else { |
3254 | 0 | xmlIOErr(XML_IO_NO_INPUT, NULL); |
3255 | 0 | in->error = XML_IO_NO_INPUT; |
3256 | 0 | return(-1); |
3257 | 0 | } |
3258 | 179M | if (res < 0) { |
3259 | 0 | return(-1); |
3260 | 0 | } |
3261 | | |
3262 | | /* |
3263 | | * try to establish compressed status of input if not done already |
3264 | | */ |
3265 | 179M | if (in->compressed == -1) { |
3266 | 179M | #ifdef LIBXML_LZMA_ENABLED |
3267 | 179M | if (in->readcallback == xmlXzfileRead) |
3268 | 0 | in->compressed = __libxml2_xzcompressed(in->context); |
3269 | 179M | #endif |
3270 | 179M | } |
3271 | | |
3272 | 179M | len = res; |
3273 | 179M | if (in->encoder != NULL) { |
3274 | 415k | unsigned int use; |
3275 | | |
3276 | | /* |
3277 | | * Store the data in the incoming raw buffer |
3278 | | */ |
3279 | 415k | if (in->raw == NULL) { |
3280 | 151 | in->raw = xmlBufCreate(); |
3281 | 151 | } |
3282 | 415k | res = xmlBufAdd(in->raw, (const xmlChar *) buffer, len); |
3283 | 415k | if (res != 0) |
3284 | 0 | return(-1); |
3285 | | |
3286 | | /* |
3287 | | * convert as much as possible to the parser reading buffer. |
3288 | | */ |
3289 | 415k | use = xmlBufUse(in->raw); |
3290 | 415k | nbchars = xmlCharEncInput(in, 1); |
3291 | 415k | if (nbchars < 0) { |
3292 | 4.98k | xmlIOErr(XML_IO_ENCODER, NULL); |
3293 | 4.98k | in->error = XML_IO_ENCODER; |
3294 | 4.98k | return(-1); |
3295 | 4.98k | } |
3296 | 410k | in->rawconsumed += (use - xmlBufUse(in->raw)); |
3297 | 179M | } else { |
3298 | 179M | nbchars = len; |
3299 | 179M | xmlBufAddLen(in->buffer, nbchars); |
3300 | 179M | } |
3301 | | #ifdef DEBUG_INPUT |
3302 | | xmlGenericError(xmlGenericErrorContext, |
3303 | | "I/O: read %d chars, buffer %d\n", |
3304 | | nbchars, xmlBufUse(in->buffer)); |
3305 | | #endif |
3306 | 179M | return(nbchars); |
3307 | 179M | } |
3308 | | |
3309 | | /** |
3310 | | * xmlParserInputBufferRead: |
3311 | | * @in: a buffered parser input |
3312 | | * @len: indicative value of the amount of chars to read |
3313 | | * |
3314 | | * Refresh the content of the input buffer, the old data are considered |
3315 | | * consumed |
3316 | | * This routine handle the I18N transcoding to internal UTF-8 |
3317 | | * |
3318 | | * Returns the number of chars read and stored in the buffer, or -1 |
3319 | | * in case of error. |
3320 | | */ |
3321 | | int |
3322 | 1.09M | xmlParserInputBufferRead(xmlParserInputBufferPtr in, int len) { |
3323 | 1.09M | if ((in == NULL) || (in->error)) return(-1); |
3324 | 1.09M | if (in->readcallback != NULL) |
3325 | 752k | return(xmlParserInputBufferGrow(in, len)); |
3326 | 338k | else if (xmlBufGetAllocationScheme(in->buffer) == XML_BUFFER_ALLOC_IMMUTABLE) |
3327 | 290k | return(0); |
3328 | 47.5k | else |
3329 | 47.5k | return(-1); |
3330 | 1.09M | } |
3331 | | |
3332 | | #ifdef LIBXML_OUTPUT_ENABLED |
3333 | | /** |
3334 | | * xmlOutputBufferWrite: |
3335 | | * @out: a buffered parser output |
3336 | | * @len: the size in bytes of the array. |
3337 | | * @buf: an char array |
3338 | | * |
3339 | | * Write the content of the array in the output I/O buffer |
3340 | | * This routine handle the I18N transcoding from internal UTF-8 |
3341 | | * The buffer is lossless, i.e. will store in case of partial |
3342 | | * or delayed writes. |
3343 | | * |
3344 | | * Returns the number of chars immediately written, or -1 |
3345 | | * in case of error. |
3346 | | */ |
3347 | | int |
3348 | 3.66G | xmlOutputBufferWrite(xmlOutputBufferPtr out, int len, const char *buf) { |
3349 | 3.66G | int nbchars = 0; /* number of chars to output to I/O */ |
3350 | 3.66G | int ret; /* return from function call */ |
3351 | 3.66G | int written = 0; /* number of char written to I/O so far */ |
3352 | 3.66G | int chunk; /* number of byte current processed from buf */ |
3353 | | |
3354 | 3.66G | if ((out == NULL) || (out->error)) return(-1); |
3355 | 3.66G | if (len < 0) return(0); |
3356 | 3.66G | if (out->error) return(-1); |
3357 | | |
3358 | 3.66G | do { |
3359 | 3.66G | chunk = len; |
3360 | 3.66G | if (chunk > 4 * MINLEN) |
3361 | 15.8k | chunk = 4 * MINLEN; |
3362 | | |
3363 | | /* |
3364 | | * first handle encoding stuff. |
3365 | | */ |
3366 | 3.66G | if (out->encoder != NULL) { |
3367 | | /* |
3368 | | * Store the data in the incoming raw buffer |
3369 | | */ |
3370 | 302M | if (out->conv == NULL) { |
3371 | 0 | out->conv = xmlBufCreate(); |
3372 | 0 | } |
3373 | 302M | ret = xmlBufAdd(out->buffer, (const xmlChar *) buf, chunk); |
3374 | 302M | if (ret != 0) |
3375 | 0 | return(-1); |
3376 | | |
3377 | 302M | if ((xmlBufUse(out->buffer) < MINLEN) && (chunk == len)) |
3378 | 301M | goto done; |
3379 | | |
3380 | | /* |
3381 | | * convert as much as possible to the parser reading buffer. |
3382 | | */ |
3383 | 342k | ret = xmlCharEncOutput(out, 0); |
3384 | 342k | if ((ret < 0) && (ret != -3)) { |
3385 | 131 | xmlIOErr(XML_IO_ENCODER, NULL); |
3386 | 131 | out->error = XML_IO_ENCODER; |
3387 | 131 | return(-1); |
3388 | 131 | } |
3389 | 342k | if (out->writecallback) |
3390 | 0 | nbchars = xmlBufUse(out->conv); |
3391 | 342k | else |
3392 | 342k | nbchars = ret >= 0 ? ret : 0; |
3393 | 3.36G | } else { |
3394 | 3.36G | ret = xmlBufAdd(out->buffer, (const xmlChar *) buf, chunk); |
3395 | 3.36G | if (ret != 0) |
3396 | 0 | return(-1); |
3397 | 3.36G | if (out->writecallback) |
3398 | 0 | nbchars = xmlBufUse(out->buffer); |
3399 | 3.36G | else |
3400 | 3.36G | nbchars = chunk; |
3401 | 3.36G | } |
3402 | 3.36G | buf += chunk; |
3403 | 3.36G | len -= chunk; |
3404 | | |
3405 | 3.36G | if (out->writecallback) { |
3406 | 0 | if ((nbchars < MINLEN) && (len <= 0)) |
3407 | 0 | goto done; |
3408 | | |
3409 | | /* |
3410 | | * second write the stuff to the I/O channel |
3411 | | */ |
3412 | 0 | if (out->encoder != NULL) { |
3413 | 0 | ret = out->writecallback(out->context, |
3414 | 0 | (const char *)xmlBufContent(out->conv), nbchars); |
3415 | 0 | if (ret >= 0) |
3416 | 0 | xmlBufShrink(out->conv, ret); |
3417 | 0 | } else { |
3418 | 0 | ret = out->writecallback(out->context, |
3419 | 0 | (const char *)xmlBufContent(out->buffer), nbchars); |
3420 | 0 | if (ret >= 0) |
3421 | 0 | xmlBufShrink(out->buffer, ret); |
3422 | 0 | } |
3423 | 0 | if (ret < 0) { |
3424 | 0 | xmlIOErr(XML_IO_WRITE, NULL); |
3425 | 0 | out->error = XML_IO_WRITE; |
3426 | 0 | return(ret); |
3427 | 0 | } |
3428 | 0 | if (out->written > INT_MAX - ret) |
3429 | 0 | out->written = INT_MAX; |
3430 | 0 | else |
3431 | 0 | out->written += ret; |
3432 | 0 | } |
3433 | 3.36G | written += nbchars; |
3434 | 3.36G | } while (len > 0); |
3435 | | |
3436 | 3.66G | done: |
3437 | | #ifdef DEBUG_INPUT |
3438 | | xmlGenericError(xmlGenericErrorContext, |
3439 | | "I/O: wrote %d chars\n", written); |
3440 | | #endif |
3441 | 3.66G | return(written); |
3442 | 3.66G | } |
3443 | | |
3444 | | /** |
3445 | | * xmlEscapeContent: |
3446 | | * @out: a pointer to an array of bytes to store the result |
3447 | | * @outlen: the length of @out |
3448 | | * @in: a pointer to an array of unescaped UTF-8 bytes |
3449 | | * @inlen: the length of @in |
3450 | | * |
3451 | | * Take a block of UTF-8 chars in and escape them. |
3452 | | * Returns 0 if success, or -1 otherwise |
3453 | | * The value of @inlen after return is the number of octets consumed |
3454 | | * if the return value is positive, else unpredictable. |
3455 | | * The value of @outlen after return is the number of octets consumed. |
3456 | | */ |
3457 | | static int |
3458 | | xmlEscapeContent(unsigned char* out, int *outlen, |
3459 | 36.8M | const xmlChar* in, int *inlen) { |
3460 | 36.8M | unsigned char* outstart = out; |
3461 | 36.8M | const unsigned char* base = in; |
3462 | 36.8M | unsigned char* outend = out + *outlen; |
3463 | 36.8M | const unsigned char* inend; |
3464 | | |
3465 | 36.8M | inend = in + (*inlen); |
3466 | | |
3467 | 1.30G | while ((in < inend) && (out < outend)) { |
3468 | 1.26G | if (*in == '<') { |
3469 | 5.90M | if (outend - out < 4) break; |
3470 | 5.90M | *out++ = '&'; |
3471 | 5.90M | *out++ = 'l'; |
3472 | 5.90M | *out++ = 't'; |
3473 | 5.90M | *out++ = ';'; |
3474 | 1.26G | } else if (*in == '>') { |
3475 | 44.5M | if (outend - out < 4) break; |
3476 | 44.5M | *out++ = '&'; |
3477 | 44.5M | *out++ = 'g'; |
3478 | 44.5M | *out++ = 't'; |
3479 | 44.5M | *out++ = ';'; |
3480 | 1.21G | } else if (*in == '&') { |
3481 | 538k | if (outend - out < 5) break; |
3482 | 538k | *out++ = '&'; |
3483 | 538k | *out++ = 'a'; |
3484 | 538k | *out++ = 'm'; |
3485 | 538k | *out++ = 'p'; |
3486 | 538k | *out++ = ';'; |
3487 | 1.21G | } else if (*in == '\r') { |
3488 | 5.22M | if (outend - out < 5) break; |
3489 | 5.22M | *out++ = '&'; |
3490 | 5.22M | *out++ = '#'; |
3491 | 5.22M | *out++ = '1'; |
3492 | 5.22M | *out++ = '3'; |
3493 | 5.22M | *out++ = ';'; |
3494 | 1.21G | } else { |
3495 | 1.21G | *out++ = *in; |
3496 | 1.21G | } |
3497 | 1.26G | ++in; |
3498 | 1.26G | } |
3499 | 36.8M | *outlen = out - outstart; |
3500 | 36.8M | *inlen = in - base; |
3501 | 36.8M | return(0); |
3502 | 36.8M | } |
3503 | | |
3504 | | /** |
3505 | | * xmlOutputBufferWriteEscape: |
3506 | | * @out: a buffered parser output |
3507 | | * @str: a zero terminated UTF-8 string |
3508 | | * @escaping: an optional escaping function (or NULL) |
3509 | | * |
3510 | | * Write the content of the string in the output I/O buffer |
3511 | | * This routine escapes the characters and then handle the I18N |
3512 | | * transcoding from internal UTF-8 |
3513 | | * The buffer is lossless, i.e. will store in case of partial |
3514 | | * or delayed writes. |
3515 | | * |
3516 | | * Returns the number of chars immediately written, or -1 |
3517 | | * in case of error. |
3518 | | */ |
3519 | | int |
3520 | | xmlOutputBufferWriteEscape(xmlOutputBufferPtr out, const xmlChar *str, |
3521 | 486M | xmlCharEncodingOutputFunc escaping) { |
3522 | 486M | int nbchars = 0; /* number of chars to output to I/O */ |
3523 | 486M | int ret; /* return from function call */ |
3524 | 486M | int written = 0; /* number of char written to I/O so far */ |
3525 | 486M | int oldwritten=0;/* loop guard */ |
3526 | 486M | int chunk; /* number of byte currently processed from str */ |
3527 | 486M | int len; /* number of bytes in str */ |
3528 | 486M | int cons; /* byte from str consumed */ |
3529 | | |
3530 | 486M | if ((out == NULL) || (out->error) || (str == NULL) || |
3531 | 486M | (out->buffer == NULL) || |
3532 | 486M | (xmlBufGetAllocationScheme(out->buffer) == XML_BUFFER_ALLOC_IMMUTABLE)) |
3533 | 18.9k | return(-1); |
3534 | 486M | len = strlen((const char *)str); |
3535 | 486M | if (len < 0) return(0); |
3536 | 486M | if (out->error) return(-1); |
3537 | 486M | if (escaping == NULL) escaping = xmlEscapeContent; |
3538 | | |
3539 | 488M | do { |
3540 | 488M | oldwritten = written; |
3541 | | |
3542 | | /* |
3543 | | * how many bytes to consume and how many bytes to store. |
3544 | | */ |
3545 | 488M | cons = len; |
3546 | 488M | chunk = xmlBufAvail(out->buffer); |
3547 | | |
3548 | | /* |
3549 | | * make sure we have enough room to save first, if this is |
3550 | | * not the case force a flush, but make sure we stay in the loop |
3551 | | */ |
3552 | 488M | if (chunk < 40) { |
3553 | 118 | if (xmlBufGrow(out->buffer, 100) < 0) |
3554 | 0 | return(-1); |
3555 | 118 | oldwritten = -1; |
3556 | 118 | continue; |
3557 | 118 | } |
3558 | | |
3559 | | /* |
3560 | | * first handle encoding stuff. |
3561 | | */ |
3562 | 488M | if (out->encoder != NULL) { |
3563 | | /* |
3564 | | * Store the data in the incoming raw buffer |
3565 | | */ |
3566 | 36.8M | if (out->conv == NULL) { |
3567 | 0 | out->conv = xmlBufCreate(); |
3568 | 0 | } |
3569 | 36.8M | ret = escaping(xmlBufEnd(out->buffer) , |
3570 | 36.8M | &chunk, str, &cons); |
3571 | 36.8M | if ((ret < 0) || (chunk == 0)) /* chunk==0 => nothing done */ |
3572 | 0 | return(-1); |
3573 | 36.8M | xmlBufAddLen(out->buffer, chunk); |
3574 | | |
3575 | 36.8M | if ((xmlBufUse(out->buffer) < MINLEN) && (cons == len)) |
3576 | 36.5M | goto done; |
3577 | | |
3578 | | /* |
3579 | | * convert as much as possible to the output buffer. |
3580 | | */ |
3581 | 357k | ret = xmlCharEncOutput(out, 0); |
3582 | 357k | if ((ret < 0) && (ret != -3)) { |
3583 | 153 | xmlIOErr(XML_IO_ENCODER, NULL); |
3584 | 153 | out->error = XML_IO_ENCODER; |
3585 | 153 | return(-1); |
3586 | 153 | } |
3587 | 357k | if (out->writecallback) |
3588 | 0 | nbchars = xmlBufUse(out->conv); |
3589 | 357k | else |
3590 | 357k | nbchars = ret >= 0 ? ret : 0; |
3591 | 451M | } else { |
3592 | 451M | ret = escaping(xmlBufEnd(out->buffer), &chunk, str, &cons); |
3593 | 451M | if ((ret < 0) || (chunk == 0)) /* chunk==0 => nothing done */ |
3594 | 94.3M | return(-1); |
3595 | 357M | xmlBufAddLen(out->buffer, chunk); |
3596 | 357M | if (out->writecallback) |
3597 | 0 | nbchars = xmlBufUse(out->buffer); |
3598 | 357M | else |
3599 | 357M | nbchars = chunk; |
3600 | 357M | } |
3601 | 357M | str += cons; |
3602 | 357M | len -= cons; |
3603 | | |
3604 | 357M | if (out->writecallback) { |
3605 | 0 | if ((nbchars < MINLEN) && (len <= 0)) |
3606 | 0 | goto done; |
3607 | | |
3608 | | /* |
3609 | | * second write the stuff to the I/O channel |
3610 | | */ |
3611 | 0 | if (out->encoder != NULL) { |
3612 | 0 | ret = out->writecallback(out->context, |
3613 | 0 | (const char *)xmlBufContent(out->conv), nbchars); |
3614 | 0 | if (ret >= 0) |
3615 | 0 | xmlBufShrink(out->conv, ret); |
3616 | 0 | } else { |
3617 | 0 | ret = out->writecallback(out->context, |
3618 | 0 | (const char *)xmlBufContent(out->buffer), nbchars); |
3619 | 0 | if (ret >= 0) |
3620 | 0 | xmlBufShrink(out->buffer, ret); |
3621 | 0 | } |
3622 | 0 | if (ret < 0) { |
3623 | 0 | xmlIOErr(XML_IO_WRITE, NULL); |
3624 | 0 | out->error = XML_IO_WRITE; |
3625 | 0 | return(ret); |
3626 | 0 | } |
3627 | 0 | if (out->written > INT_MAX - ret) |
3628 | 0 | out->written = INT_MAX; |
3629 | 0 | else |
3630 | 0 | out->written += ret; |
3631 | 357M | } else if (xmlBufAvail(out->buffer) < MINLEN) { |
3632 | 188k | xmlBufGrow(out->buffer, MINLEN); |
3633 | 188k | } |
3634 | 357M | written += nbchars; |
3635 | 357M | } while ((len > 0) && (oldwritten != written)); |
3636 | | |
3637 | 391M | done: |
3638 | | #ifdef DEBUG_INPUT |
3639 | | xmlGenericError(xmlGenericErrorContext, |
3640 | | "I/O: wrote %d chars\n", written); |
3641 | | #endif |
3642 | 391M | return(written); |
3643 | 486M | } |
3644 | | |
3645 | | /** |
3646 | | * xmlOutputBufferWriteString: |
3647 | | * @out: a buffered parser output |
3648 | | * @str: a zero terminated C string |
3649 | | * |
3650 | | * Write the content of the string in the output I/O buffer |
3651 | | * This routine handle the I18N transcoding from internal UTF-8 |
3652 | | * The buffer is lossless, i.e. will store in case of partial |
3653 | | * or delayed writes. |
3654 | | * |
3655 | | * Returns the number of chars immediately written, or -1 |
3656 | | * in case of error. |
3657 | | */ |
3658 | | int |
3659 | 1.18G | xmlOutputBufferWriteString(xmlOutputBufferPtr out, const char *str) { |
3660 | 1.18G | int len; |
3661 | | |
3662 | 1.18G | if ((out == NULL) || (out->error)) return(-1); |
3663 | 1.18G | if (str == NULL) |
3664 | 357 | return(-1); |
3665 | 1.18G | len = strlen(str); |
3666 | | |
3667 | 1.18G | if (len > 0) |
3668 | 1.18G | return(xmlOutputBufferWrite(out, len, str)); |
3669 | 46.0k | return(len); |
3670 | 1.18G | } |
3671 | | |
3672 | | /** |
3673 | | * xmlOutputBufferFlush: |
3674 | | * @out: a buffered output |
3675 | | * |
3676 | | * flushes the output I/O channel |
3677 | | * |
3678 | | * Returns the number of byte written or -1 in case of error. |
3679 | | */ |
3680 | | int |
3681 | 223k | xmlOutputBufferFlush(xmlOutputBufferPtr out) { |
3682 | 223k | int nbchars = 0, ret = 0; |
3683 | | |
3684 | 223k | if ((out == NULL) || (out->error)) return(-1); |
3685 | | /* |
3686 | | * first handle encoding stuff. |
3687 | | */ |
3688 | 222k | if ((out->conv != NULL) && (out->encoder != NULL)) { |
3689 | | /* |
3690 | | * convert as much as possible to the parser output buffer. |
3691 | | */ |
3692 | 28.9k | do { |
3693 | 28.9k | nbchars = xmlCharEncOutput(out, 0); |
3694 | 28.9k | if (nbchars < 0) { |
3695 | 383 | xmlIOErr(XML_IO_ENCODER, NULL); |
3696 | 383 | out->error = XML_IO_ENCODER; |
3697 | 383 | return(-1); |
3698 | 383 | } |
3699 | 28.9k | } while (nbchars); |
3700 | 14.5k | } |
3701 | | |
3702 | | /* |
3703 | | * second flush the stuff to the I/O channel |
3704 | | */ |
3705 | 222k | if ((out->conv != NULL) && (out->encoder != NULL) && |
3706 | 222k | (out->writecallback != NULL)) { |
3707 | 0 | ret = out->writecallback(out->context, |
3708 | 0 | (const char *)xmlBufContent(out->conv), |
3709 | 0 | xmlBufUse(out->conv)); |
3710 | 0 | if (ret >= 0) |
3711 | 0 | xmlBufShrink(out->conv, ret); |
3712 | 222k | } else if (out->writecallback != NULL) { |
3713 | 0 | ret = out->writecallback(out->context, |
3714 | 0 | (const char *)xmlBufContent(out->buffer), |
3715 | 0 | xmlBufUse(out->buffer)); |
3716 | 0 | if (ret >= 0) |
3717 | 0 | xmlBufShrink(out->buffer, ret); |
3718 | 0 | } |
3719 | 222k | if (ret < 0) { |
3720 | 0 | xmlIOErr(XML_IO_FLUSH, NULL); |
3721 | 0 | out->error = XML_IO_FLUSH; |
3722 | 0 | return(ret); |
3723 | 0 | } |
3724 | 222k | if (out->written > INT_MAX - ret) |
3725 | 0 | out->written = INT_MAX; |
3726 | 222k | else |
3727 | 222k | out->written += ret; |
3728 | | |
3729 | | #ifdef DEBUG_INPUT |
3730 | | xmlGenericError(xmlGenericErrorContext, |
3731 | | "I/O: flushed %d chars\n", ret); |
3732 | | #endif |
3733 | 222k | return(ret); |
3734 | 222k | } |
3735 | | #endif /* LIBXML_OUTPUT_ENABLED */ |
3736 | | |
3737 | | /** |
3738 | | * xmlParserGetDirectory: |
3739 | | * @filename: the path to a file |
3740 | | * |
3741 | | * lookup the directory for that file |
3742 | | * |
3743 | | * Returns a new allocated string containing the directory, or NULL. |
3744 | | */ |
3745 | | char * |
3746 | 5.77M | xmlParserGetDirectory(const char *filename) { |
3747 | 5.77M | char *ret = NULL; |
3748 | 5.77M | char dir[1024]; |
3749 | 5.77M | char *cur; |
3750 | | |
3751 | 5.77M | if (xmlInputCallbackInitialized == 0) |
3752 | 0 | xmlRegisterDefaultInputCallbacks(); |
3753 | | |
3754 | 5.77M | if (filename == NULL) return(NULL); |
3755 | | |
3756 | | #if defined(_WIN32) |
3757 | | # define IS_XMLPGD_SEP(ch) ((ch=='/')||(ch=='\\')) |
3758 | | #else |
3759 | 69.9M | # define IS_XMLPGD_SEP(ch) (ch=='/') |
3760 | 5.77M | #endif |
3761 | | |
3762 | 5.77M | strncpy(dir, filename, 1023); |
3763 | 5.77M | dir[1023] = 0; |
3764 | 5.77M | cur = &dir[strlen(dir)]; |
3765 | 69.8M | while (cur > dir) { |
3766 | 64.1M | if (IS_XMLPGD_SEP(*cur)) break; |
3767 | 64.0M | cur --; |
3768 | 64.0M | } |
3769 | 5.77M | if (IS_XMLPGD_SEP(*cur)) { |
3770 | 164k | if (cur == dir) dir[1] = 0; |
3771 | 159k | else *cur = 0; |
3772 | 164k | ret = xmlMemStrdup(dir); |
3773 | 5.61M | } else { |
3774 | 5.61M | if (getcwd(dir, 1024) != NULL) { |
3775 | 5.61M | dir[1023] = 0; |
3776 | 5.61M | ret = xmlMemStrdup(dir); |
3777 | 5.61M | } |
3778 | 5.61M | } |
3779 | 5.77M | return(ret); |
3780 | 5.77M | #undef IS_XMLPGD_SEP |
3781 | 5.77M | } |
3782 | | |
3783 | | /**************************************************************** |
3784 | | * * |
3785 | | * External entities loading * |
3786 | | * * |
3787 | | ****************************************************************/ |
3788 | | |
3789 | | /** |
3790 | | * xmlCheckHTTPInput: |
3791 | | * @ctxt: an XML parser context |
3792 | | * @ret: an XML parser input |
3793 | | * |
3794 | | * Check an input in case it was created from an HTTP stream, in that |
3795 | | * case it will handle encoding and update of the base URL in case of |
3796 | | * redirection. It also checks for HTTP errors in which case the input |
3797 | | * is cleanly freed up and an appropriate error is raised in context |
3798 | | * |
3799 | | * Returns the input or NULL in case of HTTP error. |
3800 | | */ |
3801 | | xmlParserInputPtr |
3802 | 0 | xmlCheckHTTPInput(xmlParserCtxtPtr ctxt, xmlParserInputPtr ret) { |
3803 | | /* Avoid unused variable warning if features are disabled. */ |
3804 | 0 | (void) ctxt; |
3805 | |
|
3806 | | #ifdef LIBXML_HTTP_ENABLED |
3807 | | if ((ret != NULL) && (ret->buf != NULL) && |
3808 | | (ret->buf->readcallback == xmlIOHTTPRead) && |
3809 | | (ret->buf->context != NULL)) { |
3810 | | const char *encoding; |
3811 | | const char *redir; |
3812 | | const char *mime; |
3813 | | int code; |
3814 | | |
3815 | | code = xmlNanoHTTPReturnCode(ret->buf->context); |
3816 | | if (code >= 400) { |
3817 | | /* fatal error */ |
3818 | | if (ret->filename != NULL) |
3819 | | __xmlLoaderErr(ctxt, "failed to load HTTP resource \"%s\"\n", |
3820 | | (const char *) ret->filename); |
3821 | | else |
3822 | | __xmlLoaderErr(ctxt, "failed to load HTTP resource\n", NULL); |
3823 | | xmlFreeInputStream(ret); |
3824 | | ret = NULL; |
3825 | | } else { |
3826 | | |
3827 | | mime = xmlNanoHTTPMimeType(ret->buf->context); |
3828 | | if ((xmlStrstr(BAD_CAST mime, BAD_CAST "/xml")) || |
3829 | | (xmlStrstr(BAD_CAST mime, BAD_CAST "+xml"))) { |
3830 | | encoding = xmlNanoHTTPEncoding(ret->buf->context); |
3831 | | if (encoding != NULL) { |
3832 | | xmlCharEncodingHandlerPtr handler; |
3833 | | |
3834 | | handler = xmlFindCharEncodingHandler(encoding); |
3835 | | if (handler != NULL) { |
3836 | | xmlSwitchInputEncoding(ctxt, ret, handler); |
3837 | | } else { |
3838 | | __xmlErrEncoding(ctxt, XML_ERR_UNKNOWN_ENCODING, |
3839 | | "Unknown encoding %s", |
3840 | | BAD_CAST encoding, NULL); |
3841 | | } |
3842 | | if (ret->encoding == NULL) |
3843 | | ret->encoding = xmlStrdup(BAD_CAST encoding); |
3844 | | } |
3845 | | #if 0 |
3846 | | } else if (xmlStrstr(BAD_CAST mime, BAD_CAST "html")) { |
3847 | | #endif |
3848 | | } |
3849 | | redir = xmlNanoHTTPRedir(ret->buf->context); |
3850 | | if (redir != NULL) { |
3851 | | if (ret->filename != NULL) |
3852 | | xmlFree((xmlChar *) ret->filename); |
3853 | | if (ret->directory != NULL) { |
3854 | | xmlFree((xmlChar *) ret->directory); |
3855 | | ret->directory = NULL; |
3856 | | } |
3857 | | ret->filename = |
3858 | | (char *) xmlStrdup((const xmlChar *) redir); |
3859 | | } |
3860 | | } |
3861 | | } |
3862 | | #endif |
3863 | 0 | return(ret); |
3864 | 0 | } |
3865 | | |
3866 | 5.96M | static int xmlNoNetExists(const char *URL) { |
3867 | 5.96M | const char *path; |
3868 | | |
3869 | 5.96M | if (URL == NULL) |
3870 | 0 | return(0); |
3871 | | |
3872 | 5.96M | if (!xmlStrncasecmp(BAD_CAST URL, BAD_CAST "file://localhost/", 17)) |
3873 | | #if defined (_WIN32) |
3874 | | path = &URL[17]; |
3875 | | #else |
3876 | 0 | path = &URL[16]; |
3877 | 5.96M | #endif |
3878 | 5.96M | else if (!xmlStrncasecmp(BAD_CAST URL, BAD_CAST "file:///", 8)) { |
3879 | | #if defined (_WIN32) |
3880 | | path = &URL[8]; |
3881 | | #else |
3882 | 0 | path = &URL[7]; |
3883 | 0 | #endif |
3884 | 0 | } else |
3885 | 5.96M | path = URL; |
3886 | | |
3887 | 5.96M | return xmlCheckFilename(path); |
3888 | 5.96M | } |
3889 | | |
3890 | | #ifdef LIBXML_CATALOG_ENABLED |
3891 | | |
3892 | | /** |
3893 | | * xmlResolveResourceFromCatalog: |
3894 | | * @URL: the URL for the entity to load |
3895 | | * @ID: the System ID for the entity to load |
3896 | | * @ctxt: the context in which the entity is called or NULL |
3897 | | * |
3898 | | * Resolves the URL and ID against the appropriate catalog. |
3899 | | * This function is used by xmlDefaultExternalEntityLoader and |
3900 | | * xmlNoNetExternalEntityLoader. |
3901 | | * |
3902 | | * Returns a new allocated URL, or NULL. |
3903 | | */ |
3904 | | static xmlChar * |
3905 | | xmlResolveResourceFromCatalog(const char *URL, const char *ID, |
3906 | 0 | xmlParserCtxtPtr ctxt) { |
3907 | 0 | xmlChar *resource = NULL; |
3908 | 0 | xmlCatalogAllow pref; |
3909 | | |
3910 | | /* |
3911 | | * If the resource doesn't exists as a file, |
3912 | | * try to load it from the resource pointed in the catalogs |
3913 | | */ |
3914 | 0 | pref = xmlCatalogGetDefaults(); |
3915 | |
|
3916 | 0 | if ((pref != XML_CATA_ALLOW_NONE) && (!xmlNoNetExists(URL))) { |
3917 | | /* |
3918 | | * Do a local lookup |
3919 | | */ |
3920 | 0 | if ((ctxt != NULL) && (ctxt->catalogs != NULL) && |
3921 | 0 | ((pref == XML_CATA_ALLOW_ALL) || |
3922 | 0 | (pref == XML_CATA_ALLOW_DOCUMENT))) { |
3923 | 0 | resource = xmlCatalogLocalResolve(ctxt->catalogs, |
3924 | 0 | (const xmlChar *)ID, |
3925 | 0 | (const xmlChar *)URL); |
3926 | 0 | } |
3927 | | /* |
3928 | | * Try a global lookup |
3929 | | */ |
3930 | 0 | if ((resource == NULL) && |
3931 | 0 | ((pref == XML_CATA_ALLOW_ALL) || |
3932 | 0 | (pref == XML_CATA_ALLOW_GLOBAL))) { |
3933 | 0 | resource = xmlCatalogResolve((const xmlChar *)ID, |
3934 | 0 | (const xmlChar *)URL); |
3935 | 0 | } |
3936 | 0 | if ((resource == NULL) && (URL != NULL)) |
3937 | 0 | resource = xmlStrdup((const xmlChar *) URL); |
3938 | | |
3939 | | /* |
3940 | | * TODO: do an URI lookup on the reference |
3941 | | */ |
3942 | 0 | if ((resource != NULL) && (!xmlNoNetExists((const char *)resource))) { |
3943 | 0 | xmlChar *tmp = NULL; |
3944 | |
|
3945 | 0 | if ((ctxt != NULL) && (ctxt->catalogs != NULL) && |
3946 | 0 | ((pref == XML_CATA_ALLOW_ALL) || |
3947 | 0 | (pref == XML_CATA_ALLOW_DOCUMENT))) { |
3948 | 0 | tmp = xmlCatalogLocalResolveURI(ctxt->catalogs, resource); |
3949 | 0 | } |
3950 | 0 | if ((tmp == NULL) && |
3951 | 0 | ((pref == XML_CATA_ALLOW_ALL) || |
3952 | 0 | (pref == XML_CATA_ALLOW_GLOBAL))) { |
3953 | 0 | tmp = xmlCatalogResolveURI(resource); |
3954 | 0 | } |
3955 | |
|
3956 | 0 | if (tmp != NULL) { |
3957 | 0 | xmlFree(resource); |
3958 | 0 | resource = tmp; |
3959 | 0 | } |
3960 | 0 | } |
3961 | 0 | } |
3962 | |
|
3963 | 0 | return resource; |
3964 | 0 | } |
3965 | | |
3966 | | #endif |
3967 | | |
3968 | | /** |
3969 | | * xmlDefaultExternalEntityLoader: |
3970 | | * @URL: the URL for the entity to load |
3971 | | * @ID: the System ID for the entity to load |
3972 | | * @ctxt: the context in which the entity is called or NULL |
3973 | | * |
3974 | | * By default we don't load external entities, yet. |
3975 | | * |
3976 | | * Returns a new allocated xmlParserInputPtr, or NULL. |
3977 | | */ |
3978 | | static xmlParserInputPtr |
3979 | | xmlDefaultExternalEntityLoader(const char *URL, const char *ID, |
3980 | | xmlParserCtxtPtr ctxt) |
3981 | 0 | { |
3982 | 0 | xmlParserInputPtr ret = NULL; |
3983 | 0 | xmlChar *resource = NULL; |
3984 | |
|
3985 | | #ifdef DEBUG_EXTERNAL_ENTITIES |
3986 | | xmlGenericError(xmlGenericErrorContext, |
3987 | | "xmlDefaultExternalEntityLoader(%s, xxx)\n", URL); |
3988 | | #endif |
3989 | 0 | if ((ctxt != NULL) && (ctxt->options & XML_PARSE_NONET)) { |
3990 | 0 | int options = ctxt->options; |
3991 | |
|
3992 | 0 | ctxt->options -= XML_PARSE_NONET; |
3993 | 0 | ret = xmlNoNetExternalEntityLoader(URL, ID, ctxt); |
3994 | 0 | ctxt->options = options; |
3995 | 0 | return(ret); |
3996 | 0 | } |
3997 | 0 | #ifdef LIBXML_CATALOG_ENABLED |
3998 | 0 | resource = xmlResolveResourceFromCatalog(URL, ID, ctxt); |
3999 | 0 | #endif |
4000 | |
|
4001 | 0 | if (resource == NULL) |
4002 | 0 | resource = (xmlChar *) URL; |
4003 | |
|
4004 | 0 | if (resource == NULL) { |
4005 | 0 | if (ID == NULL) |
4006 | 0 | ID = "NULL"; |
4007 | 0 | __xmlLoaderErr(ctxt, "failed to load external entity \"%s\"\n", ID); |
4008 | 0 | return (NULL); |
4009 | 0 | } |
4010 | 0 | ret = xmlNewInputFromFile(ctxt, (const char *) resource); |
4011 | 0 | if ((resource != NULL) && (resource != (xmlChar *) URL)) |
4012 | 0 | xmlFree(resource); |
4013 | 0 | return (ret); |
4014 | 0 | } |
4015 | | |
4016 | | static xmlExternalEntityLoader xmlCurrentExternalEntityLoader = |
4017 | | xmlDefaultExternalEntityLoader; |
4018 | | |
4019 | | /** |
4020 | | * xmlSetExternalEntityLoader: |
4021 | | * @f: the new entity resolver function |
4022 | | * |
4023 | | * Changes the defaultexternal entity resolver function for the application |
4024 | | */ |
4025 | | void |
4026 | 8.25k | xmlSetExternalEntityLoader(xmlExternalEntityLoader f) { |
4027 | 8.25k | xmlCurrentExternalEntityLoader = f; |
4028 | 8.25k | } |
4029 | | |
4030 | | /** |
4031 | | * xmlGetExternalEntityLoader: |
4032 | | * |
4033 | | * Get the default external entity resolver function for the application |
4034 | | * |
4035 | | * Returns the xmlExternalEntityLoader function pointer |
4036 | | */ |
4037 | | xmlExternalEntityLoader |
4038 | 0 | xmlGetExternalEntityLoader(void) { |
4039 | 0 | return(xmlCurrentExternalEntityLoader); |
4040 | 0 | } |
4041 | | |
4042 | | /** |
4043 | | * xmlLoadExternalEntity: |
4044 | | * @URL: the URL for the entity to load |
4045 | | * @ID: the Public ID for the entity to load |
4046 | | * @ctxt: the context in which the entity is called or NULL |
4047 | | * |
4048 | | * Load an external entity, note that the use of this function for |
4049 | | * unparsed entities may generate problems |
4050 | | * |
4051 | | * Returns the xmlParserInputPtr or NULL |
4052 | | */ |
4053 | | xmlParserInputPtr |
4054 | | xmlLoadExternalEntity(const char *URL, const char *ID, |
4055 | 6.02M | xmlParserCtxtPtr ctxt) { |
4056 | 6.02M | if ((URL != NULL) && (xmlNoNetExists(URL) == 0)) { |
4057 | 5.96M | char *canonicFilename; |
4058 | 5.96M | xmlParserInputPtr ret; |
4059 | | |
4060 | 5.96M | canonicFilename = (char *) xmlCanonicPath((const xmlChar *) URL); |
4061 | 5.96M | if (canonicFilename == NULL) { |
4062 | 0 | xmlIOErrMemory("building canonical path\n"); |
4063 | 0 | return(NULL); |
4064 | 0 | } |
4065 | | |
4066 | 5.96M | ret = xmlCurrentExternalEntityLoader(canonicFilename, ID, ctxt); |
4067 | 5.96M | xmlFree(canonicFilename); |
4068 | 5.96M | return(ret); |
4069 | 5.96M | } |
4070 | 59.7k | return(xmlCurrentExternalEntityLoader(URL, ID, ctxt)); |
4071 | 6.02M | } |
4072 | | |
4073 | | /************************************************************************ |
4074 | | * * |
4075 | | * Disabling Network access * |
4076 | | * * |
4077 | | ************************************************************************/ |
4078 | | |
4079 | | /** |
4080 | | * xmlNoNetExternalEntityLoader: |
4081 | | * @URL: the URL for the entity to load |
4082 | | * @ID: the System ID for the entity to load |
4083 | | * @ctxt: the context in which the entity is called or NULL |
4084 | | * |
4085 | | * A specific entity loader disabling network accesses, though still |
4086 | | * allowing local catalog accesses for resolution. |
4087 | | * |
4088 | | * Returns a new allocated xmlParserInputPtr, or NULL. |
4089 | | */ |
4090 | | xmlParserInputPtr |
4091 | | xmlNoNetExternalEntityLoader(const char *URL, const char *ID, |
4092 | 0 | xmlParserCtxtPtr ctxt) { |
4093 | 0 | xmlParserInputPtr input = NULL; |
4094 | 0 | xmlChar *resource = NULL; |
4095 | |
|
4096 | 0 | #ifdef LIBXML_CATALOG_ENABLED |
4097 | 0 | resource = xmlResolveResourceFromCatalog(URL, ID, ctxt); |
4098 | 0 | #endif |
4099 | |
|
4100 | 0 | if (resource == NULL) |
4101 | 0 | resource = (xmlChar *) URL; |
4102 | |
|
4103 | 0 | if (resource != NULL) { |
4104 | 0 | if ((!xmlStrncasecmp(BAD_CAST resource, BAD_CAST "ftp://", 6)) || |
4105 | 0 | (!xmlStrncasecmp(BAD_CAST resource, BAD_CAST "http://", 7))) { |
4106 | 0 | xmlIOErr(XML_IO_NETWORK_ATTEMPT, (const char *) resource); |
4107 | 0 | if (resource != (xmlChar *) URL) |
4108 | 0 | xmlFree(resource); |
4109 | 0 | return(NULL); |
4110 | 0 | } |
4111 | 0 | } |
4112 | 0 | input = xmlDefaultExternalEntityLoader((const char *) resource, ID, ctxt); |
4113 | 0 | if (resource != (xmlChar *) URL) |
4114 | 0 | xmlFree(resource); |
4115 | 0 | return(input); |
4116 | 0 | } |
4117 | | |