/src/httpd/server/apreq_parser_header.c

Source
/*
**  Licensed to the Apache Software Foundation (ASF) under one or more
** contributor license agreements.  See the NOTICE file distributed with
** this work for additional information regarding copyright ownership.
** The ASF licenses this file to You under the Apache License, Version 2.0
** (the "License"); you may not use this file except in compliance with
** the License.  You may obtain a copy of the License at
**
**      http://www.apache.org/licenses/LICENSE-2.0
**
**  Unless required by applicable law or agreed to in writing, software
**  distributed under the License is distributed on an "AS IS" BASIS,
**  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
**  See the License for the specific language governing permissions and
**  limitations under the License.
*/
#include <assert.h>
#include "apreq_parser.h"
#include "apreq_error.h"
#include "apreq_util.h"

#include "apr_lib.h" /* for apr_iscntrl() & co */

#define PARSER_STATUS_CHECK(PREFIX)   do {         \
    if (ctx->status == PREFIX##_ERROR)             \
        return APREQ_ERROR_GENERAL;                \
    else if (ctx->status == PREFIX##_COMPLETE)     \
        return APR_SUCCESS;                        \
    else if (bb == NULL)                           \
        return APR_INCOMPLETE;                     \
} while (0);


struct hdr_ctx {
    apr_bucket_brigade *bb;
    apr_size_t          nlen;
    apr_size_t          glen;
    apr_size_t          vlen;
    enum {
        HDR_NAME,
        HDR_GAP,
        HDR_VALUE,
        HDR_NEWLINE,
        HDR_ENDLINE,
        HDR_FOLDLINE,
        HDR_LASTLINE,
        HDR_COMPLETE,
        HDR_ERROR
    }                   status;
};

/********************* header parsing utils ********************/


static apr_bucket *split_header_line(apr_bucket *e, apr_size_t *off,
                                     const char **data, apr_size_t *dlen)
{
    if (*off > 1) {
        apr_bucket_split(e, *off - 1);
        e = APR_BUCKET_NEXT(e);
        *dlen -= *off - 1;
        *data += *off - 1;
        *off = 1;
    }
    return e;
}

static apr_status_t consume_header_line(apreq_param_t **p,
                                        apr_pool_t *pool,
                                        apr_bucket_brigade *bb,
                                        apr_size_t nlen,
                                        apr_size_t glen,
                                        apr_size_t vlen)
{
    apreq_param_t *param;
    apreq_value_t *v;
    apr_bucket *e, *f;
    apr_status_t s;
    struct iovec vec[APREQ_DEFAULT_NELTS], *iov;
    apr_array_header_t arr;
    char *dest;
    const char *data;
    apr_size_t dlen;
    int i, eol = 0;

    param = apreq_param_make(pool, NULL, nlen, NULL, vlen);
    if (param == NULL)
        return APR_ENOMEM;
    *(const apreq_value_t **)&v = &param->v;

    arr.pool     = pool;
    arr.elt_size = sizeof(struct iovec);
    arr.nelts    = 0;
    arr.nalloc   = APREQ_DEFAULT_NELTS;
    arr.elts     = (char *)vec;

    e = APR_BRIGADE_FIRST(bb);

    /* store name in a temporary iovec array */
    do {
        apr_size_t len;

        assert(e != APR_BRIGADE_SENTINEL(bb));
        iov = (struct iovec *)apr_array_push(&arr);
        s = apr_bucket_read(e, (const char **)&iov->iov_base,
                            &len, APR_BLOCK_READ);
        if (s != APR_SUCCESS)
            return s;
        iov->iov_len = len;

        assert(nlen >= len);
        nlen -= len;

        e = APR_BUCKET_NEXT(e);
    } while (nlen > 0);

    /* skip gap */
    do {
        assert(e != APR_BRIGADE_SENTINEL(bb));
        s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
        if (s != APR_SUCCESS)
            return s;

        assert(glen >= dlen);
        glen -= dlen;

        e = APR_BUCKET_NEXT(e);
    } while (glen > 0);

    /* copy value */
    dest = v->data;
    do {
        apr_size_t off;

        assert(e != APR_BRIGADE_SENTINEL(bb));
        s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
        if (s != APR_SUCCESS)
            return s;

        for (off = 0; off < dlen; ++off) {
            const char ch = data[off];
            if (ch == '\r' || ch == '\n') {
                /* Eat [CR]LF of continuation or end of line */
                if (!vlen && ch == '\n')
                    eol = 1; /* done */
                continue;
            }
            assert(vlen > 0);
            *dest = ch;
            ++dest;
            --vlen;
        }

        e = APR_BUCKET_NEXT(e);
    } while (!eol);
    v->dlen = dest - v->data;
    *dest++ = 0;

    /* write name */
    v->name = dest;
    for (i = 0; i < arr.nelts; ++i) {
        iov = &((struct iovec *)arr.elts)[i];
        memcpy(dest, iov->iov_base, iov->iov_len);
        dest += iov->iov_len;
        ++iov;
    }
    v->nlen = dest - v->name;
    *dest = 0;

    while ((f = APR_BRIGADE_FIRST(bb)) != e)
        apr_bucket_delete(f);

    apreq_param_tainted_on(param);
    *p = param;
    return APR_SUCCESS;

}

#define IS_TOKEN_CHAR(c) (apr_isalnum(c) \
                          || ((c) && strchr("!#$%&'*+-.^_`|~", (c))))

APREQ_DECLARE_PARSER(apreq_parse_headers)
{
    apr_pool_t *pool = parser->pool;
    apr_bucket *e;
    struct hdr_ctx *ctx;
    char ch;

    if (parser->ctx == NULL) {
        ctx = apr_pcalloc(pool, sizeof *ctx);
        ctx->bb = apr_brigade_create(pool, parser->bucket_alloc);
        parser->ctx = ctx;
        ctx->status = HDR_NAME;
    }
    else
        ctx = parser->ctx;

    PARSER_STATUS_CHECK(HDR);
    e = APR_BRIGADE_LAST(ctx->bb);
    APR_BRIGADE_CONCAT(ctx->bb, bb);

    /* parse the brigade for CRLF_CRLF-terminated header block,
     * each time starting from the front of the brigade.
     */

    for (e = APR_BUCKET_NEXT(e);
         e != APR_BRIGADE_SENTINEL(ctx->bb);
         e = APR_BUCKET_NEXT(e))
    {
        apr_size_t off = 0, dlen;
        const char *data;
        apr_status_t s;
        apreq_param_t *param = NULL; /* silences gcc-4.0 warning */

        if (APR_BUCKET_IS_EOS(e)) {
            ctx->status = HDR_COMPLETE;
            APR_BRIGADE_CONCAT(bb, ctx->bb);
            return APR_SUCCESS;
        }

        s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
        if ( s != APR_SUCCESS ) {
            ctx->status = HDR_ERROR;
            return s;
        }
        if (dlen == 0)
            continue;

    parse_hdr_bucket:

        /*              gap           nlen = 13
         *              vvv           glen =  3
         * Sample-Header:  grape      vlen =  5
         * ^^^^^^^^^^^^^   ^^^^^
         *     name        value
         */

        switch (ctx->status) {

        case HDR_NAME:

            while (off < dlen) {
                ch = data[off++];
                switch (ch) {
                case ':':
                    if (!ctx->nlen) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADHEADER;
                    }
                    e = split_header_line(e, &off, &data, &dlen);
                    ++ctx->glen;
                    ctx->status = HDR_GAP;
                    goto parse_hdr_bucket;

                default:
                    if (!IS_TOKEN_CHAR(ch)) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADCHAR;
                    }
                    ++ctx->nlen;
                }
            }
            break;


        case HDR_GAP:

            while (off < dlen) {
                ch = data[off++];
                switch (ch) {
                case ' ':
                case '\t':
                    ++ctx->glen;
                    break;

                case '\n':
                    e = split_header_line(e, &off, &data, &dlen);
                    ctx->status = HDR_NEWLINE;
                    goto parse_hdr_bucket;

                case '\r':
                    e = split_header_line(e, &off, &data, &dlen);
                    ctx->status = HDR_ENDLINE;
                    goto parse_hdr_bucket;

                default:
                    if (apr_iscntrl(ch)) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADCHAR;
                    }
                    e = split_header_line(e, &off, &data, &dlen);
                    ++ctx->vlen;
                    ctx->status = HDR_VALUE;
                    goto parse_hdr_bucket;
                }
            }
            break;


        case HDR_VALUE:

            while (off < dlen) {
                ch = data[off++];
                switch (ch) {
                case '\n':
                    ctx->status = HDR_NEWLINE;
                    goto parse_hdr_bucket;

                case '\r':
                    ctx->status = HDR_ENDLINE;
                    goto parse_hdr_bucket;

                default:
                    if (apr_iscntrl(ch)) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADCHAR;
                    }
                    ++ctx->vlen;
                }
            }
            break;


        case HDR_ENDLINE:
        case HDR_LASTLINE:

            if (off == dlen)
                break;

            if (data[off++] != '\n') {
                ctx->status = HDR_ERROR;
                return APREQ_ERROR_BADHEADER;
            }

            if (ctx->status == HDR_LASTLINE) {
                ctx->status = HDR_COMPLETE;
                goto parse_hdr_bucket;
            }

            /* fall thru */
            ctx->status = HDR_NEWLINE;

        case HDR_NEWLINE:

            if (off == dlen)
                break;

            ch = data[off++];
            switch (ch) {
            case ' ':
            case '\t':
                ++ctx->vlen;
                break;

            default:
                e = split_header_line(e, &off, &data, &dlen);

                /* consume from splitted brigade now */
                s = consume_header_line(&param, pool, ctx->bb,
                                        ctx->nlen, ctx->glen, ctx->vlen);
                if (parser->hook != NULL && s == APR_SUCCESS)
                    s = apreq_hook_run(parser->hook, param, NULL);
                if (s != APR_SUCCESS) {
                    ctx->status = HDR_ERROR;
                    return s;
                }
                apreq_value_table_add(&param->v, t);
                ctx->nlen = 0;
                ctx->vlen = 0;
                ctx->glen = 0;

                switch (ch) {
                case '\n':
                    ctx->status = HDR_COMPLETE;
                    break;

                case '\r':
                    ctx->status = HDR_LASTLINE;
                    break;

                default:
                    if (!IS_TOKEN_CHAR(ch)) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADCHAR;
                    }
                    ++ctx->nlen;
                    ctx->status = HDR_NAME;
                    break;
                }
                goto parse_hdr_bucket;
            }

            /* fall thru */
            ctx->status = HDR_FOLDLINE;

        case HDR_FOLDLINE:

            while (off < dlen) {
                ch = data[off++];
                switch (ch) {
                case ' ':
                case '\t':
                    ++ctx->vlen;
                    break;

                case '\n':
                    ctx->status = HDR_NEWLINE;
                    goto parse_hdr_bucket;

                case '\r':
                    ctx->status = HDR_ENDLINE;
                    goto parse_hdr_bucket;

                default:
                    if (apr_iscntrl(ch)) {
                        ctx->status = HDR_ERROR;
                        return APREQ_ERROR_BADCHAR;
                    }
                    ctx->status = HDR_VALUE;
                    ++ctx->vlen;
                    goto parse_hdr_bucket;
                }
            }
            break;


        case HDR_COMPLETE:

            if (off < dlen)
                apr_bucket_split(e, off);

            e = APR_BUCKET_NEXT(e);
            do {
                apr_bucket *f = APR_BRIGADE_FIRST(ctx->bb);
                apr_bucket_delete(f);
            } while (e != APR_BRIGADE_FIRST(ctx->bb));

            APR_BRIGADE_CONCAT(bb, ctx->bb);
            return APR_SUCCESS;


        default:
            assert(0); /* not reached */
        }
    }
    apreq_brigade_setaside(ctx->bb,pool);
    return APR_INCOMPLETE;
}

Coverage Report

Created: 2025-10-13 06:13

Line	Count	Source
1		/*
2		** Licensed to the Apache Software Foundation (ASF) under one or more
3		** contributor license agreements. See the NOTICE file distributed with
4		** this work for additional information regarding copyright ownership.
5		** The ASF licenses this file to You under the Apache License, Version 2.0
6		** (the "License"); you may not use this file except in compliance with
7		** the License. You may obtain a copy of the License at
8		**
9		** http://www.apache.org/licenses/LICENSE-2.0
10		**
11		** Unless required by applicable law or agreed to in writing, software
12		** distributed under the License is distributed on an "AS IS" BASIS,
13		** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14		** See the License for the specific language governing permissions and
15		** limitations under the License.
16		*/
17		#include <assert.h>
18		#include "apreq_parser.h"
19		#include "apreq_error.h"
20		#include "apreq_util.h"
21
22		#include "apr_lib.h" /* for apr_iscntrl() & co */
23
24	860	#define PARSER_STATUS_CHECK(PREFIX) do { \
25	860	if (ctx->status == PREFIX##_ERROR) \
26	860	return APREQ_ERROR_GENERAL; \
27	860	else if (ctx->status == PREFIX##_COMPLETE) \
28	860	return APR_SUCCESS; \
29	860	else if (bb == NULL) \
30	860	return APR_INCOMPLETE; \
31	860	} while (0);
32
33
34		struct hdr_ctx {
35		apr_bucket_brigade *bb;
36		apr_size_t nlen;
37		apr_size_t glen;
38		apr_size_t vlen;
39		enum {
40		HDR_NAME,
41		HDR_GAP,
42		HDR_VALUE,
43		HDR_NEWLINE,
44		HDR_ENDLINE,
45		HDR_FOLDLINE,
46		HDR_LASTLINE,
47		HDR_COMPLETE,
48		HDR_ERROR
49		} status;
50		};
51
52		/******************* header parsing utils ******************/
53
54
55		static apr_bucket split_header_line(apr_bucket e, apr_size_t *off,
56		const char *data, apr_size_t dlen)
57	3.66k	{
58	3.66k	if (*off > 1) {
59	3.66k	apr_bucket_split(e, *off - 1);
60	3.66k	e = APR_BUCKET_NEXT(e);
61	3.66k	dlen -= off - 1;
62	3.66k	data += off - 1;
63	3.66k	*off = 1;
64	3.66k	}
65	3.66k	return e;
66	3.66k	}
67
68		static apr_status_t consume_header_line(apreq_param_t **p,
69		apr_pool_t *pool,
70		apr_bucket_brigade *bb,
71		apr_size_t nlen,
72		apr_size_t glen,
73		apr_size_t vlen)
74	1.18k	{
75	1.18k	apreq_param_t *param;
76	1.18k	apreq_value_t *v;
77	1.18k	apr_bucket e, f;
78	1.18k	apr_status_t s;
79	1.18k	struct iovec vec[APREQ_DEFAULT_NELTS], *iov;
80	1.18k	apr_array_header_t arr;
81	1.18k	char *dest;
82	1.18k	const char *data;
83	1.18k	apr_size_t dlen;
84	1.18k	int i, eol = 0;
85
86	1.18k	param = apreq_param_make(pool, NULL, nlen, NULL, vlen);
87	1.18k	if (param == NULL)
88	0	return APR_ENOMEM;
89	1.18k	(const apreq_value_t *)&v = &param->v;
90
91	1.18k	arr.pool = pool;
92	1.18k	arr.elt_size = sizeof(struct iovec);
93	1.18k	arr.nelts = 0;
94	1.18k	arr.nalloc = APREQ_DEFAULT_NELTS;
95	1.18k	arr.elts = (char *)vec;
96
97	1.18k	e = APR_BRIGADE_FIRST(bb);
98
99		/* store name in a temporary iovec array */
100	1.19k	do {
101	1.19k	apr_size_t len;
102
103	1.19k	assert(e != APR_BRIGADE_SENTINEL(bb));
104	1.19k	iov = (struct iovec *)apr_array_push(&arr);
105	1.19k	s = apr_bucket_read(e, (const char **)&iov->iov_base,
106	1.19k	&len, APR_BLOCK_READ);
107	1.19k	if (s != APR_SUCCESS)
108	0	return s;
109	1.19k	iov->iov_len = len;
110
111	1.19k	assert(nlen >= len);
112	1.19k	nlen -= len;
113
114	1.19k	e = APR_BUCKET_NEXT(e);
115	1.19k	} while (nlen > 0);
116
117		/* skip gap */
118	1.19k	do {
119	1.19k	assert(e != APR_BRIGADE_SENTINEL(bb));
120	1.19k	s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
121	1.19k	if (s != APR_SUCCESS)
122	0	return s;
123
124	1.19k	assert(glen >= dlen);
125	1.19k	glen -= dlen;
126
127	1.19k	e = APR_BUCKET_NEXT(e);
128	1.19k	} while (glen > 0);
129
130		/* copy value */
131	1.18k	dest = v->data;
132	1.19k	do {
133	1.19k	apr_size_t off;
134
135	1.19k	assert(e != APR_BRIGADE_SENTINEL(bb));
136	1.19k	s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
137	1.19k	if (s != APR_SUCCESS)
138	0	return s;
139
140	12.9k	for (off = 0; off < dlen; ++off) {
141	11.7k	const char ch = data[off];
142	11.7k	if (ch == '\r' \|\| ch == '\n') {
143		/* Eat [CR]LF of continuation or end of line */
144	1.63k	if (!vlen && ch == '\n')
145	1.18k	eol = 1; /* done */
146	1.63k	continue;
147	1.63k	}
148	11.7k	assert(vlen > 0);
149	10.1k	*dest = ch;
150	10.1k	++dest;
151	10.1k	--vlen;
152	10.1k	}
153
154	1.19k	e = APR_BUCKET_NEXT(e);
155	1.19k	} while (!eol);
156	1.18k	v->dlen = dest - v->data;
157	1.18k	*dest++ = 0;
158
159		/* write name */
160	1.18k	v->name = dest;
161	2.38k	for (i = 0; i < arr.nelts; ++i) {
162	1.19k	iov = &((struct iovec *)arr.elts)[i];
163	1.19k	memcpy(dest, iov->iov_base, iov->iov_len);
164	1.19k	dest += iov->iov_len;
165	1.19k	++iov;
166	1.19k	}
167	1.18k	v->nlen = dest - v->name;
168	1.18k	*dest = 0;
169
170	4.77k	while ((f = APR_BRIGADE_FIRST(bb)) != e)
171	3.58k	apr_bucket_delete(f);
172
173	1.18k	apreq_param_tainted_on(param);
174	1.18k	*p = param;
175	1.18k	return APR_SUCCESS;
176
177	1.18k	}
178
179	9.88k	#define IS_TOKEN_CHAR(c) (apr_isalnum(c) \
180	9.88k	\|\| ((c) && strchr("!#$%&'*+-.^_`\|~", (c))))
181
182		APREQ_DECLARE_PARSER(apreq_parse_headers)
183	860	{
184	860	apr_pool_t *pool = parser->pool;
185	860	apr_bucket *e;
186	860	struct hdr_ctx *ctx;
187	860	char ch;
188
189	860	if (parser->ctx == NULL) {
190	860	ctx = apr_pcalloc(pool, sizeof *ctx);
191	860	ctx->bb = apr_brigade_create(pool, parser->bucket_alloc);
192	860	parser->ctx = ctx;
193	860	ctx->status = HDR_NAME;
194	860	}
195	0	else
196	0	ctx = parser->ctx;
197
198	860	PARSER_STATUS_CHECK(HDR);
199	860	e = APR_BRIGADE_LAST(ctx->bb);
200	860	APR_BRIGADE_CONCAT(ctx->bb, bb);
201
202		/* parse the brigade for CRLF_CRLF-terminated header block,
203		* each time starting from the front of the brigade.
204		*/
205
206	860	for (e = APR_BUCKET_NEXT(e);
207	960	e != APR_BRIGADE_SENTINEL(ctx->bb);
208	860	e = APR_BUCKET_NEXT(e))
209	880	{
210	880	apr_size_t off = 0, dlen;
211	880	const char *data;
212	880	apr_status_t s;
213	880	apreq_param_t param = NULL; / silences gcc-4.0 warning */
214
215	880	if (APR_BUCKET_IS_EOS(e)) {
216	0	ctx->status = HDR_COMPLETE;
217	0	APR_BRIGADE_CONCAT(bb, ctx->bb);
218	0	return APR_SUCCESS;
219	0	}
220
221	880	s = apr_bucket_read(e, &data, &dlen, APR_BLOCK_READ);
222	880	if ( s != APR_SUCCESS ) {
223	0	ctx->status = HDR_ERROR;
224	0	return s;
225	0	}
226	880	if (dlen == 0)
227	0	continue;
228
229	5.94k	parse_hdr_bucket:
230
231		/* gap nlen = 13
232		* vvv glen = 3
233		* Sample-Header: grape vlen = 5
234		* ^^^^^^^^^^^^^ ^^^^^
235		* name value
236		*/
237
238	5.94k	switch (ctx->status) {
239
240	1.30k	case HDR_NAME:
241
242	10.7k	while (off < dlen) {
243	10.6k	ch = data[off++];
244	10.6k	switch (ch) {
245	1.24k	case ':':
246	1.24k	if (!ctx->nlen) {
247	1	ctx->status = HDR_ERROR;
248	1	return APREQ_ERROR_BADHEADER;
249	1	}
250	1.24k	e = split_header_line(e, &off, &data, &dlen);
251	1.24k	++ctx->glen;
252	1.24k	ctx->status = HDR_GAP;
253	1.24k	goto parse_hdr_bucket;
254
255	9.43k	default:
256	9.43k	if (!IS_TOKEN_CHAR(ch)) {
257	26	ctx->status = HDR_ERROR;
258	26	return APREQ_ERROR_BADCHAR;
259	26	}
260	9.40k	++ctx->nlen;
261	10.6k	}
262	10.6k	}
263	38	break;
264
265
266	1.25k	case HDR_GAP:
267
268	1.75k	while (off < dlen) {
269	1.73k	ch = data[off++];
270	1.73k	switch (ch) {
271	248	case ' ':
272	501	case '\t':
273	501	++ctx->glen;
274	501	break;
275
276	352	case '\n':
277	352	e = split_header_line(e, &off, &data, &dlen);
278	352	ctx->status = HDR_NEWLINE;
279	352	goto parse_hdr_bucket;
280
281	96	case '\r':
282	96	e = split_header_line(e, &off, &data, &dlen);
283	96	ctx->status = HDR_ENDLINE;
284	96	goto parse_hdr_bucket;
285
286	787	default:
287	787	if (apr_iscntrl(ch)) {
288	1	ctx->status = HDR_ERROR;
289	1	return APREQ_ERROR_BADCHAR;
290	1	}
291	786	e = split_header_line(e, &off, &data, &dlen);
292	786	++ctx->vlen;
293	786	ctx->status = HDR_VALUE;
294	786	goto parse_hdr_bucket;
295	1.73k	}
296	1.73k	}
297	18	break;
298
299
300	903	case HDR_VALUE:
301
302	10.1k	while (off < dlen) {
303	10.0k	ch = data[off++];
304	10.0k	switch (ch) {
305	739	case '\n':
306	739	ctx->status = HDR_NEWLINE;
307	739	goto parse_hdr_bucket;
308
309	148	case '\r':
310	148	ctx->status = HDR_ENDLINE;
311	148	goto parse_hdr_bucket;
312
313	9.20k	default:
314	9.20k	if (apr_iscntrl(ch)) {
315	2	ctx->status = HDR_ERROR;
316	2	return APREQ_ERROR_BADCHAR;
317	2	}
318	9.19k	++ctx->vlen;
319	10.0k	}
320	10.0k	}
321	14	break;
322
323
324	339	case HDR_ENDLINE:
325	485	case HDR_LASTLINE:
326
327	485	if (off == dlen)
328	8	break;
329
330	477	if (data[off++] != '\n') {
331	14	ctx->status = HDR_ERROR;
332	14	return APREQ_ERROR_BADHEADER;
333	14	}
334
335	463	if (ctx->status == HDR_LASTLINE) {
336	138	ctx->status = HDR_COMPLETE;
337	138	goto parse_hdr_bucket;
338	138	}
339
340		/* fall thru */
341	325	ctx->status = HDR_NEWLINE;
342
343	1.59k	case HDR_NEWLINE:
344
345	1.59k	if (off == dlen)
346	9	break;
347
348	1.58k	ch = data[off++];
349	1.58k	switch (ch) {
350	233	case ' ':
351	395	case '\t':
352	395	++ctx->vlen;
353	395	break;
354
355	1.18k	default:
356	1.18k	e = split_header_line(e, &off, &data, &dlen);
357
358		/* consume from splitted brigade now */
359	1.18k	s = consume_header_line(&param, pool, ctx->bb,
360	1.18k	ctx->nlen, ctx->glen, ctx->vlen);
361	1.18k	if (parser->hook != NULL && s == APR_SUCCESS)
362	0	s = apreq_hook_run(parser->hook, param, NULL);
363	1.18k	if (s != APR_SUCCESS) {
364	0	ctx->status = HDR_ERROR;
365	0	return s;
366	0	}
367	1.18k	apreq_value_table_add(&param->v, t);
368	1.18k	ctx->nlen = 0;
369	1.18k	ctx->vlen = 0;
370	1.18k	ctx->glen = 0;
371
372	1.18k	switch (ch) {
373	589	case '\n':
374	589	ctx->status = HDR_COMPLETE;
375	589	break;
376
377	145	case '\r':
378	145	ctx->status = HDR_LASTLINE;
379	145	break;
380
381	455	default:
382	455	if (!IS_TOKEN_CHAR(ch)) {
383	8	ctx->status = HDR_ERROR;
384	8	return APREQ_ERROR_BADCHAR;
385	8	}
386	447	++ctx->nlen;
387	447	ctx->status = HDR_NAME;
388	447	break;
389	1.18k	}
390	1.18k	goto parse_hdr_bucket;
391	1.58k	}
392
393		/* fall thru */
394	395	ctx->status = HDR_FOLDLINE;
395
396	397	case HDR_FOLDLINE:
397
398	836	while (off < dlen) {
399	823	ch = data[off++];
400	823	switch (ch) {
401	276	case ' ':
402	439	case '\t':
403	439	++ctx->vlen;
404	439	break;
405
406	175	case '\n':
407	175	ctx->status = HDR_NEWLINE;
408	175	goto parse_hdr_bucket;
409
410	94	case '\r':
411	94	ctx->status = HDR_ENDLINE;
412	94	goto parse_hdr_bucket;
413
414	115	default:
415	115	if (apr_iscntrl(ch)) {
416	1	ctx->status = HDR_ERROR;
417	1	return APREQ_ERROR_BADCHAR;
418	1	}
419	114	ctx->status = HDR_VALUE;
420	114	++ctx->vlen;
421	114	goto parse_hdr_bucket;
422	823	}
423	823	}
424	13	break;
425
426
427	727	case HDR_COMPLETE:
428
429	727	if (off < dlen)
430	720	apr_bucket_split(e, off);
431
432	727	e = APR_BUCKET_NEXT(e);
433	728	do {
434	728	apr_bucket *f = APR_BRIGADE_FIRST(ctx->bb);
435	728	apr_bucket_delete(f);
436	728	} while (e != APR_BRIGADE_FIRST(ctx->bb));
437
438	727	APR_BRIGADE_CONCAT(bb, ctx->bb);
439	727	return APR_SUCCESS;
440
441
442	0	default:
443	0	assert(0); /* not reached */
444	5.94k	}
445	5.94k	}
446	80	apreq_brigade_setaside(ctx->bb,pool);
447	80	return APR_INCOMPLETE;
448	860	}