summaryrefslogtreecommitdiffstats
path: root/plugins/uriparser/UriFile.c
blob: 9cf788fca4a2c0f8f63ebc52451c102f67f6a00d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
/*
 * uriparser - RFC 3986 URI parsing library
 *
 * Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
 * Copyright (C) 2007, Sebastian Pipping <webmaster@hartwork.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:
 *
 *     * Redistributions   of  source  code  must  retain  the   above
 *       copyright  notice, this list of conditions and the  following
 *       disclaimer.
 *
 *     * 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.
 *
 *     * Neither  the name of the <ORGANIZATION> 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 OWNER 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



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 int prefixLen = URI_STRLEN(prefix);

		/* 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 seperator */
			if (lastSep + 1 < input) {
				if (!fromUnix && absolute && (firstSegment == URI_TRUE)) {
					/* Quick hack to not convert "C:" to "C%3A" */
					const int charsToCopy = (int)(input - (lastSep + 1));
					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;
}



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_two_slashes =
				URI_STRNCMP(uriString, _UT("file://"), URI_STRLEN(_UT("file://"))) == 0;
		const UriBool file_three_slashes = file_two_slashes
				&& (URI_STRNCMP(uriString, _UT("file:///"), URI_STRLEN(_UT("file:///"))) == 0);

		const size_t charsToSkip = file_two_slashes
				? file_three_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://"))
				: 0;
		const size_t charsToCopy = URI_STRLEN(uriString + charsToSkip) + 1;

		const UriBool is_windows_network_with_authority =
				(toUnix == URI_FALSE)
				&& file_two_slashes
				&& ! file_three_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;
}



int URI_FUNC(UnixFilenameToUriString)(const URI_CHAR * filename, URI_CHAR * uriString) {
	return URI_FUNC(FilenameToUriString)(filename, uriString, URI_TRUE);
}



int URI_FUNC(WindowsFilenameToUriString)(const URI_CHAR * filename, URI_CHAR * uriString) {
	return URI_FUNC(FilenameToUriString)(filename, uriString, URI_FALSE);
}



int URI_FUNC(UriStringToUnixFilename)(const URI_CHAR * uriString, URI_CHAR * filename) {
	return URI_FUNC(UriStringToFilename)(uriString, filename, URI_TRUE);
}



int URI_FUNC(UriStringToWindowsFilename)(const URI_CHAR * uriString, URI_CHAR * filename) {
	return URI_FUNC(UriStringToFilename)(uriString, filename, URI_FALSE);
}



#endif