/*

 * uriparser - RFC 3986 URI parsing library

 *

 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>

 * Copyright (C) 2007, Sebastian Pipping <sebastian@pipping.org>

 * All rights reserved.

 *

 * Redistribution and use in source  and binary forms, with or without

 * modification, are permitted provided  that the following conditions

 * are met:

 *

 *     1. Redistributions  of  source  code   must  retain  the  above

 *        copyright notice, this list  of conditions and the following

 *        disclaimer.

 *

 *     2. Redistributions  in binary  form  must  reproduce the  above

 *        copyright notice, this list  of conditions and the following

 *        disclaimer  in  the  documentation  and/or  other  materials

 *        provided with the distribution.

 *

 *     3. Neither the  name of the  copyright holder nor the  names of

 *        its contributors may be used  to endorse or promote products

 *        derived from  this software  without specific  prior written

 *        permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND  ANY EXPRESS OR IMPLIED WARRANTIES,  INCLUDING, BUT NOT

 * LIMITED TO,  THE IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS

 * FOR  A  PARTICULAR  PURPOSE  ARE  DISCLAIMED.  IN  NO  EVENT  SHALL

 * THE  COPYRIGHT HOLDER  OR CONTRIBUTORS  BE LIABLE  FOR ANY  DIRECT,

 * INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA,  OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT  LIABILITY,  OR  TORT (INCLUDING  NEGLIGENCE  OR  OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/* What encodings are enabled? */

#include <uriparser/UriDefsConfig.h>

#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE))

/* Include SELF twice */

#  ifdef URI_ENABLE_ANSI

#    define URI_PASS_ANSI 1

#    include "UriFile.c"

#    undef URI_PASS_ANSI

#  endif

#  ifdef URI_ENABLE_UNICODE

#    define URI_PASS_UNICODE 1

#    include "UriFile.c"

#    undef URI_PASS_UNICODE

#  endif

#else

#  ifdef URI_PASS_ANSI

#    include <uriparser/UriDefsAnsi.h>

#  else

#    include <uriparser/UriDefsUnicode.h>

#    include <wchar.h>

#  endif

#  ifndef URI_DOXYGEN

#    include <uriparser/Uri.h>

#  endif

#  include <stddef.h>  // size_t

#  include <stdint.h>  // SIZE_MAX

static URI_INLINE int URI_FUNC(FilenameToUriString)(const URI_CHAR * filename,

                                                    URI_CHAR * uriString,

                                                    UriBool fromUnix) {

    const URI_CHAR * input = filename;

    const URI_CHAR * lastSep = input - 1;

    UriBool firstSegment = URI_TRUE;

    URI_CHAR * output = uriString;

    UriBool absolute;

    UriBool is_windows_network;

    if ((filename == NULL) || (uriString == NULL)) {

        return URI_ERROR_NULL;

    }

    is_windows_network = (filename[0] == _UT('\\')) && (filename[1] == _UT('\\'));

    absolute = fromUnix ? (filename[0] == _UT('/'))

                        : (((filename[0] != _UT('\0')) && (filename[1] == _UT(':')))

                           || is_windows_network);

    if (absolute) {

        const URI_CHAR * const prefix = fromUnix             ? _UT("file://")

                                        : is_windows_network ? _UT("file:")

                                                             : _UT("file:///");

        const size_t prefixLen = URI_STRLEN(prefix);

        // Detect and avoid integer overflow

        if (prefixLen > SIZE_MAX / sizeof(URI_CHAR)) {

            return URI_ERROR_OUTPUT_TOO_LARGE;

        }

        /* Copy prefix */

        memcpy(uriString, prefix, prefixLen * sizeof(URI_CHAR));

        output += prefixLen;

    }

    /* Copy and escape on the fly */

    for (;;) {

        if ((input[0] == _UT('\0')) || (fromUnix && input[0] == _UT('/'))

            || (!fromUnix && input[0] == _UT('\\'))) {

            /* Copy text after last separator */

            if (lastSep + 1 < input) {

                if (!fromUnix && absolute && (firstSegment == URI_TRUE)) {

                    /* Quick hack to not convert "C:" to "C%3A" */

                    const size_t charsToCopy = input - (lastSep + 1);

                    // Detect and avoid integer overflow

                    if (charsToCopy > SIZE_MAX / sizeof(URI_CHAR)) {

                        return URI_ERROR_OUTPUT_TOO_LARGE;

                    }

                    memcpy(output, lastSep + 1, charsToCopy * sizeof(URI_CHAR));

                    output += charsToCopy;

                } else {

                    output = URI_FUNC(EscapeEx)(lastSep + 1, input, output, URI_FALSE,

                                                URI_FALSE);

                }

            }

            firstSegment = URI_FALSE;

        }

        if (input[0] == _UT('\0')) {

            output[0] = _UT('\0');

            break;

        } else if (fromUnix && (input[0] == _UT('/'))) {

            /* Copy separators unmodified */

            output[0] = _UT('/');

            output++;

            lastSep = input;

        } else if (!fromUnix && (input[0] == _UT('\\'))) {

            /* Convert backslashes to forward slashes */

            output[0] = _UT('/');

            output++;

            lastSep = input;

        }

        input++;

    }

    return URI_SUCCESS;

}

Unexecuted instantiation: UriFile.c:uriFilenameToUriStringA

Unexecuted instantiation: UriFile.c:uriFilenameToUriStringW

static URI_INLINE int URI_FUNC(UriStringToFilename)(const URI_CHAR * uriString,

                                                    URI_CHAR * filename, UriBool toUnix) {

    if ((uriString == NULL) || (filename == NULL)) {

        return URI_ERROR_NULL;

    }

    const UriBool file_unknown_slashes =

        URI_STRNCMP(uriString, _UT("file:"), URI_STRLEN(_UT("file:"))) == 0;

    const UriBool file_one_or_more_slashes =

        file_unknown_slashes

        && (URI_STRNCMP(uriString, _UT("file:/"), URI_STRLEN(_UT("file:/"))) == 0);

    const UriBool file_two_or_more_slashes =

        file_one_or_more_slashes

        && (URI_STRNCMP(uriString, _UT("file://"), URI_STRLEN(_UT("file://"))) == 0);

    const UriBool file_three_or_more_slashes =

        file_two_or_more_slashes

        && (URI_STRNCMP(uriString, _UT("file:///"), URI_STRLEN(_UT("file:///"))) == 0);

    const size_t charsToSkip =

        file_two_or_more_slashes

            ? file_three_or_more_slashes ? toUnix

                                               /* file:///bin/bash */

                                               ? URI_STRLEN(_UT("file://"))

                                               /* file:///E:/Documents%20and%20Settings */

                                               : URI_STRLEN(_UT("file:///"))

                                         /* file://Server01/Letter.txt */

                                         : URI_STRLEN(_UT("file://"))

            : ((file_one_or_more_slashes && toUnix)

                   /* file:/bin/bash */

                   /* https://tools.ietf.org/html/rfc8089#appendix-B */

                   ? URI_STRLEN(_UT("file:"))

                   : ((!toUnix && file_unknown_slashes && !file_one_or_more_slashes)

                          /* file:c:/path/to/file */

                          /* https://tools.ietf.org/html/rfc8089#appendix-E.2 */

                          ? URI_STRLEN(_UT("file:"))

                          : 0));

    const size_t charsToCopy = URI_STRLEN(uriString + charsToSkip) + 1;

    const UriBool is_windows_network_with_authority =

        (toUnix == URI_FALSE) && file_two_or_more_slashes && !file_three_or_more_slashes;

    URI_CHAR * const unescape_target =

        is_windows_network_with_authority ? (filename + 2) : filename;

    if (is_windows_network_with_authority) {

        filename[0] = '\\';

        filename[1] = '\\';

    }

    memcpy(unescape_target, uriString + charsToSkip, charsToCopy * sizeof(URI_CHAR));

    URI_FUNC(UnescapeInPlaceEx)(filename, URI_FALSE, URI_BR_DONT_TOUCH);

    /* Convert forward slashes to backslashes */

    if (!toUnix) {

        URI_CHAR * walker = filename;

        while (walker[0] != _UT('\0')) {

            if (walker[0] == _UT('/')) {

                walker[0] = _UT('\\');

            }

            walker++;

        }

    }

    return URI_SUCCESS;

}

Unexecuted instantiation: UriFile.c:uriUriStringToFilenameA

Unexecuted instantiation: UriFile.c:uriUriStringToFilenameW

int URI_FUNC(UnixFilenameToUriString)(const URI_CHAR * filename, URI_CHAR * uriString) {

    return URI_FUNC(FilenameToUriString)(filename, uriString, URI_TRUE);

}

Unexecuted instantiation: uriUnixFilenameToUriStringA

Unexecuted instantiation: uriUnixFilenameToUriStringW

int URI_FUNC(WindowsFilenameToUriString)(const URI_CHAR * filename,

                                         URI_CHAR * uriString) {

    return URI_FUNC(FilenameToUriString)(filename, uriString, URI_FALSE);

}

Unexecuted instantiation: uriWindowsFilenameToUriStringA

Unexecuted instantiation: uriWindowsFilenameToUriStringW

int URI_FUNC(UriStringToUnixFilename)(const URI_CHAR * uriString, URI_CHAR * filename) {

    return URI_FUNC(UriStringToFilename)(uriString, filename, URI_TRUE);

}

Unexecuted instantiation: uriUriStringToUnixFilenameA

Unexecuted instantiation: uriUriStringToUnixFilenameW

int URI_FUNC(UriStringToWindowsFilename)(const URI_CHAR * uriString,

                                         URI_CHAR * filename) {

    return URI_FUNC(UriStringToFilename)(uriString, filename, URI_FALSE);

}

Unexecuted instantiation: uriUriStringToWindowsFilenameA

Unexecuted instantiation: uriUriStringToWindowsFilenameW

#endif