]>
Commit | Line | Data |
---|---|---|
ca0defb9 PB |
1 | /** |
2 | * uri.c: set of generic URI related routines | |
3 | * | |
4 | * Reference: RFCs 3986, 2732 and 2373 | |
5 | * | |
6 | * Copyright (C) 1998-2003 Daniel Veillard. All Rights Reserved. | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * DANIEL VEILLARD BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
22 | * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
24 | * | |
25 | * Except as contained in this notice, the name of Daniel Veillard shall not | |
26 | * be used in advertising or otherwise to promote the sale, use or other | |
27 | * dealings in this Software without prior written authorization from him. | |
28 | * | |
29 | * daniel@veillard.com | |
30 | * | |
31 | ** | |
32 | * | |
33 | * Copyright (C) 2007, 2009-2010 Red Hat, Inc. | |
34 | * | |
35 | * This library is free software; you can redistribute it and/or | |
36 | * modify it under the terms of the GNU Lesser General Public | |
37 | * License as published by the Free Software Foundation; either | |
38 | * version 2.1 of the License, or (at your option) any later version. | |
39 | * | |
40 | * This library is distributed in the hope that it will be useful, | |
41 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
42 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
43 | * Lesser General Public License for more details. | |
44 | * | |
45 | * You should have received a copy of the GNU Lesser General Public | |
0c201cc1 | 46 | * License along with this library. If not, see <https://www.gnu.org/licenses/>. |
ca0defb9 PB |
47 | * |
48 | * Authors: | |
49 | * Richard W.M. Jones <rjones@redhat.com> | |
50 | * | |
51 | */ | |
52 | ||
aafd7584 | 53 | #include "qemu/osdep.h" |
5c99fa37 | 54 | #include "qemu/cutils.h" |
ca0defb9 | 55 | |
1de7afc9 | 56 | #include "qemu/uri.h" |
ca0defb9 PB |
57 | |
58 | static void uri_clean(URI *uri); | |
59 | ||
60 | /* | |
61 | * Old rule from 2396 used in legacy handling code | |
62 | * alpha = lowalpha | upalpha | |
63 | */ | |
64 | #define IS_ALPHA(x) (IS_LOWALPHA(x) || IS_UPALPHA(x)) | |
65 | ||
ca0defb9 PB |
66 | /* |
67 | * lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | | |
68 | * "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | | |
69 | * "u" | "v" | "w" | "x" | "y" | "z" | |
70 | */ | |
71 | ||
72 | #define IS_LOWALPHA(x) (((x) >= 'a') && ((x) <= 'z')) | |
73 | ||
74 | /* | |
75 | * upalpha = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | | |
76 | * "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | | |
77 | * "U" | "V" | "W" | "X" | "Y" | "Z" | |
78 | */ | |
79 | #define IS_UPALPHA(x) (((x) >= 'A') && ((x) <= 'Z')) | |
80 | ||
81 | #ifdef IS_DIGIT | |
82 | #undef IS_DIGIT | |
83 | #endif | |
84 | /* | |
85 | * digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" | |
86 | */ | |
87 | #define IS_DIGIT(x) (((x) >= '0') && ((x) <= '9')) | |
88 | ||
89 | /* | |
90 | * alphanum = alpha | digit | |
91 | */ | |
92 | ||
93 | #define IS_ALPHANUM(x) (IS_ALPHA(x) || IS_DIGIT(x)) | |
94 | ||
95 | /* | |
96 | * mark = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")" | |
97 | */ | |
98 | ||
be95adaf SH |
99 | #define IS_MARK(x) (((x) == '-') || ((x) == '_') || ((x) == '.') || \ |
100 | ((x) == '!') || ((x) == '~') || ((x) == '*') || ((x) == '\'') || \ | |
ca0defb9 PB |
101 | ((x) == '(') || ((x) == ')')) |
102 | ||
103 | /* | |
104 | * unwise = "{" | "}" | "|" | "\" | "^" | "`" | |
105 | */ | |
106 | ||
be95adaf SH |
107 | #define IS_UNWISE(p) \ |
108 | (((*(p) == '{')) || ((*(p) == '}')) || ((*(p) == '|')) || \ | |
109 | ((*(p) == '\\')) || ((*(p) == '^')) || ((*(p) == '[')) || \ | |
110 | ((*(p) == ']')) || ((*(p) == '`'))) | |
ca0defb9 PB |
111 | /* |
112 | * reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" | "$" | "," | | |
113 | * "[" | "]" | |
114 | */ | |
115 | ||
be95adaf SH |
116 | #define IS_RESERVED(x) (((x) == ';') || ((x) == '/') || ((x) == '?') || \ |
117 | ((x) == ':') || ((x) == '@') || ((x) == '&') || ((x) == '=') || \ | |
118 | ((x) == '+') || ((x) == '$') || ((x) == ',') || ((x) == '[') || \ | |
119 | ((x) == ']')) | |
ca0defb9 PB |
120 | |
121 | /* | |
122 | * unreserved = alphanum | mark | |
123 | */ | |
124 | ||
125 | #define IS_UNRESERVED(x) (IS_ALPHANUM(x) || IS_MARK(x)) | |
126 | ||
127 | /* | |
128 | * Skip to next pointer char, handle escaped sequences | |
129 | */ | |
130 | ||
be95adaf | 131 | #define NEXT(p) ((*p == '%') ? p += 3 : p++) |
ca0defb9 PB |
132 | |
133 | /* | |
134 | * Productions from the spec. | |
135 | * | |
136 | * authority = server | reg_name | |
137 | * reg_name = 1*( unreserved | escaped | "$" | "," | | |
138 | * ";" | ":" | "@" | "&" | "=" | "+" ) | |
139 | * | |
140 | * path = [ abs_path | opaque_part ] | |
141 | */ | |
142 | ||
ca0defb9 | 143 | /************************************************************************ |
be95adaf SH |
144 | * * |
145 | * RFC 3986 parser * | |
146 | * * | |
ca0defb9 PB |
147 | ************************************************************************/ |
148 | ||
149 | #define ISA_DIGIT(p) ((*(p) >= '0') && (*(p) <= '9')) | |
be95adaf | 150 | #define ISA_ALPHA(p) (((*(p) >= 'a') && (*(p) <= 'z')) || \ |
ca0defb9 | 151 | ((*(p) >= 'A') && (*(p) <= 'Z'))) |
be95adaf SH |
152 | #define ISA_HEXDIG(p) \ |
153 | (ISA_DIGIT(p) || ((*(p) >= 'a') && (*(p) <= 'f')) || \ | |
154 | ((*(p) >= 'A') && (*(p) <= 'F'))) | |
ca0defb9 PB |
155 | |
156 | /* | |
157 | * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" | |
158 | * / "*" / "+" / "," / ";" / "=" | |
159 | */ | |
be95adaf SH |
160 | #define ISA_SUB_DELIM(p) \ |
161 | (((*(p) == '!')) || ((*(p) == '$')) || ((*(p) == '&')) || \ | |
162 | ((*(p) == '(')) || ((*(p) == ')')) || ((*(p) == '*')) || \ | |
163 | ((*(p) == '+')) || ((*(p) == ',')) || ((*(p) == ';')) || \ | |
164 | ((*(p) == '=')) || ((*(p) == '\''))) | |
ca0defb9 | 165 | |
ca0defb9 PB |
166 | /* |
167 | * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" | |
168 | */ | |
be95adaf SH |
169 | #define ISA_UNRESERVED(p) \ |
170 | ((ISA_ALPHA(p)) || (ISA_DIGIT(p)) || ((*(p) == '-')) || \ | |
171 | ((*(p) == '.')) || ((*(p) == '_')) || ((*(p) == '~'))) | |
ca0defb9 PB |
172 | |
173 | /* | |
174 | * pct-encoded = "%" HEXDIG HEXDIG | |
175 | */ | |
be95adaf SH |
176 | #define ISA_PCT_ENCODED(p) \ |
177 | ((*(p) == '%') && (ISA_HEXDIG(p + 1)) && (ISA_HEXDIG(p + 2))) | |
ca0defb9 PB |
178 | |
179 | /* | |
180 | * pchar = unreserved / pct-encoded / sub-delims / ":" / "@" | |
181 | */ | |
be95adaf SH |
182 | #define ISA_PCHAR(p) \ |
183 | (ISA_UNRESERVED(p) || ISA_PCT_ENCODED(p) || ISA_SUB_DELIM(p) || \ | |
184 | ((*(p) == ':')) || ((*(p) == '@'))) | |
ca0defb9 PB |
185 | |
186 | /** | |
187 | * rfc3986_parse_scheme: | |
188 | * @uri: pointer to an URI structure | |
189 | * @str: pointer to the string to analyze | |
190 | * | |
191 | * Parse an URI scheme | |
192 | * | |
193 | * ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) | |
194 | * | |
195 | * Returns 0 or the error code | |
196 | */ | |
be95adaf SH |
197 | static int rfc3986_parse_scheme(URI *uri, const char **str) |
198 | { | |
ca0defb9 PB |
199 | const char *cur; |
200 | ||
a1515161 | 201 | if (str == NULL) { |
42fa2725 | 202 | return -1; |
a1515161 | 203 | } |
ca0defb9 PB |
204 | |
205 | cur = *str; | |
a1515161 | 206 | if (!ISA_ALPHA(cur)) { |
42fa2725 | 207 | return 2; |
a1515161 | 208 | } |
ca0defb9 | 209 | cur++; |
be95adaf | 210 | while (ISA_ALPHA(cur) || ISA_DIGIT(cur) || (*cur == '+') || (*cur == '-') || |
a1515161 | 211 | (*cur == '.')) { |
be95adaf | 212 | cur++; |
a1515161 | 213 | } |
ca0defb9 | 214 | if (uri != NULL) { |
44c2286b | 215 | g_free(uri->scheme); |
be95adaf | 216 | uri->scheme = g_strndup(*str, cur - *str); |
ca0defb9 PB |
217 | } |
218 | *str = cur; | |
42fa2725 | 219 | return 0; |
ca0defb9 PB |
220 | } |
221 | ||
222 | /** | |
223 | * rfc3986_parse_fragment: | |
224 | * @uri: pointer to an URI structure | |
225 | * @str: pointer to the string to analyze | |
226 | * | |
227 | * Parse the query part of an URI | |
228 | * | |
229 | * fragment = *( pchar / "/" / "?" ) | |
230 | * NOTE: the strict syntax as defined by 3986 does not allow '[' and ']' | |
231 | * in the fragment identifier but this is used very broadly for | |
232 | * xpointer scheme selection, so we are allowing it here to not break | |
233 | * for example all the DocBook processing chains. | |
234 | * | |
235 | * Returns 0 or the error code | |
236 | */ | |
be95adaf | 237 | static int rfc3986_parse_fragment(URI *uri, const char **str) |
ca0defb9 PB |
238 | { |
239 | const char *cur; | |
240 | ||
a1515161 | 241 | if (str == NULL) { |
42fa2725 | 242 | return -1; |
a1515161 | 243 | } |
ca0defb9 PB |
244 | |
245 | cur = *str; | |
246 | ||
247 | while ((ISA_PCHAR(cur)) || (*cur == '/') || (*cur == '?') || | |
248 | (*cur == '[') || (*cur == ']') || | |
a1515161 | 249 | ((uri != NULL) && (uri->cleanup & 1) && (IS_UNWISE(cur)))) { |
ca0defb9 | 250 | NEXT(cur); |
a1515161 | 251 | } |
ca0defb9 | 252 | if (uri != NULL) { |
44c2286b | 253 | g_free(uri->fragment); |
a1515161 | 254 | if (uri->cleanup & 2) { |
be95adaf | 255 | uri->fragment = g_strndup(*str, cur - *str); |
a1515161 | 256 | } else { |
7536acb4 | 257 | uri->fragment = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 258 | } |
ca0defb9 PB |
259 | } |
260 | *str = cur; | |
42fa2725 | 261 | return 0; |
ca0defb9 PB |
262 | } |
263 | ||
264 | /** | |
265 | * rfc3986_parse_query: | |
266 | * @uri: pointer to an URI structure | |
267 | * @str: pointer to the string to analyze | |
268 | * | |
269 | * Parse the query part of an URI | |
270 | * | |
271 | * query = *uric | |
272 | * | |
273 | * Returns 0 or the error code | |
274 | */ | |
be95adaf | 275 | static int rfc3986_parse_query(URI *uri, const char **str) |
ca0defb9 PB |
276 | { |
277 | const char *cur; | |
278 | ||
a1515161 | 279 | if (str == NULL) { |
42fa2725 | 280 | return -1; |
a1515161 | 281 | } |
ca0defb9 PB |
282 | |
283 | cur = *str; | |
284 | ||
285 | while ((ISA_PCHAR(cur)) || (*cur == '/') || (*cur == '?') || | |
a1515161 | 286 | ((uri != NULL) && (uri->cleanup & 1) && (IS_UNWISE(cur)))) { |
ca0defb9 | 287 | NEXT(cur); |
a1515161 | 288 | } |
ca0defb9 | 289 | if (uri != NULL) { |
44c2286b | 290 | g_free(uri->query); |
be95adaf | 291 | uri->query = g_strndup(*str, cur - *str); |
ca0defb9 PB |
292 | } |
293 | *str = cur; | |
42fa2725 | 294 | return 0; |
ca0defb9 PB |
295 | } |
296 | ||
297 | /** | |
298 | * rfc3986_parse_port: | |
299 | * @uri: pointer to an URI structure | |
300 | * @str: the string to analyze | |
301 | * | |
302 | * Parse a port part and fills in the appropriate fields | |
303 | * of the @uri structure | |
304 | * | |
305 | * port = *DIGIT | |
306 | * | |
307 | * Returns 0 or the error code | |
308 | */ | |
be95adaf | 309 | static int rfc3986_parse_port(URI *uri, const char **str) |
ca0defb9 PB |
310 | { |
311 | const char *cur = *str; | |
2b212330 | 312 | int port = 0; |
ca0defb9 PB |
313 | |
314 | if (ISA_DIGIT(cur)) { | |
2b212330 HR |
315 | while (ISA_DIGIT(cur)) { |
316 | port = port * 10 + (*cur - '0'); | |
317 | if (port > 65535) { | |
318 | return 1; | |
319 | } | |
320 | cur++; | |
321 | } | |
322 | if (uri) { | |
323 | uri->port = port; | |
324 | } | |
325 | *str = cur; | |
326 | return 0; | |
ca0defb9 | 327 | } |
2b212330 | 328 | return 1; |
ca0defb9 PB |
329 | } |
330 | ||
331 | /** | |
332 | * rfc3986_parse_user_info: | |
333 | * @uri: pointer to an URI structure | |
334 | * @str: the string to analyze | |
335 | * | |
736a83fa | 336 | * Parse a user information part and fill in the appropriate fields |
ca0defb9 PB |
337 | * of the @uri structure |
338 | * | |
339 | * userinfo = *( unreserved / pct-encoded / sub-delims / ":" ) | |
340 | * | |
341 | * Returns 0 or the error code | |
342 | */ | |
be95adaf | 343 | static int rfc3986_parse_user_info(URI *uri, const char **str) |
ca0defb9 PB |
344 | { |
345 | const char *cur; | |
346 | ||
347 | cur = *str; | |
be95adaf | 348 | while (ISA_UNRESERVED(cur) || ISA_PCT_ENCODED(cur) || ISA_SUB_DELIM(cur) || |
a1515161 | 349 | (*cur == ':')) { |
be95adaf | 350 | NEXT(cur); |
a1515161 | 351 | } |
ca0defb9 | 352 | if (*cur == '@') { |
be95adaf | 353 | if (uri != NULL) { |
44c2286b | 354 | g_free(uri->user); |
a1515161 | 355 | if (uri->cleanup & 2) { |
be95adaf | 356 | uri->user = g_strndup(*str, cur - *str); |
a1515161 | 357 | } else { |
7536acb4 | 358 | uri->user = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 359 | } |
be95adaf SH |
360 | } |
361 | *str = cur; | |
42fa2725 | 362 | return 0; |
be95adaf | 363 | } |
42fa2725 | 364 | return 1; |
ca0defb9 PB |
365 | } |
366 | ||
367 | /** | |
368 | * rfc3986_parse_dec_octet: | |
369 | * @str: the string to analyze | |
370 | * | |
371 | * dec-octet = DIGIT ; 0-9 | |
372 | * / %x31-39 DIGIT ; 10-99 | |
373 | * / "1" 2DIGIT ; 100-199 | |
374 | * / "2" %x30-34 DIGIT ; 200-249 | |
375 | * / "25" %x30-35 ; 250-255 | |
376 | * | |
377 | * Skip a dec-octet. | |
378 | * | |
379 | * Returns 0 if found and skipped, 1 otherwise | |
380 | */ | |
be95adaf SH |
381 | static int rfc3986_parse_dec_octet(const char **str) |
382 | { | |
ca0defb9 PB |
383 | const char *cur = *str; |
384 | ||
a1515161 | 385 | if (!(ISA_DIGIT(cur))) { |
42fa2725 | 386 | return 1; |
a1515161 SH |
387 | } |
388 | if (!ISA_DIGIT(cur + 1)) { | |
be95adaf | 389 | cur++; |
a1515161 | 390 | } else if ((*cur != '0') && (ISA_DIGIT(cur + 1)) && (!ISA_DIGIT(cur + 2))) { |
be95adaf | 391 | cur += 2; |
a1515161 | 392 | } else if ((*cur == '1') && (ISA_DIGIT(cur + 1)) && (ISA_DIGIT(cur + 2))) { |
be95adaf | 393 | cur += 3; |
a1515161 SH |
394 | } else if ((*cur == '2') && (*(cur + 1) >= '0') && (*(cur + 1) <= '4') && |
395 | (ISA_DIGIT(cur + 2))) { | |
be95adaf | 396 | cur += 3; |
a1515161 SH |
397 | } else if ((*cur == '2') && (*(cur + 1) == '5') && (*(cur + 2) >= '0') && |
398 | (*(cur + 1) <= '5')) { | |
be95adaf | 399 | cur += 3; |
a1515161 | 400 | } else { |
42fa2725 | 401 | return 1; |
a1515161 | 402 | } |
ca0defb9 | 403 | *str = cur; |
42fa2725 | 404 | return 0; |
ca0defb9 PB |
405 | } |
406 | /** | |
407 | * rfc3986_parse_host: | |
408 | * @uri: pointer to an URI structure | |
409 | * @str: the string to analyze | |
410 | * | |
411 | * Parse an host part and fills in the appropriate fields | |
412 | * of the @uri structure | |
413 | * | |
414 | * host = IP-literal / IPv4address / reg-name | |
415 | * IP-literal = "[" ( IPv6address / IPvFuture ) "]" | |
416 | * IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet | |
417 | * reg-name = *( unreserved / pct-encoded / sub-delims ) | |
418 | * | |
419 | * Returns 0 or the error code | |
420 | */ | |
be95adaf | 421 | static int rfc3986_parse_host(URI *uri, const char **str) |
ca0defb9 PB |
422 | { |
423 | const char *cur = *str; | |
424 | const char *host; | |
425 | ||
426 | host = cur; | |
427 | /* | |
a93cf9df | 428 | * IPv6 and future addressing scheme are enclosed between brackets |
ca0defb9 PB |
429 | */ |
430 | if (*cur == '[') { | |
431 | cur++; | |
a1515161 | 432 | while ((*cur != ']') && (*cur != 0)) { |
be95adaf | 433 | cur++; |
a1515161 SH |
434 | } |
435 | if (*cur != ']') { | |
42fa2725 | 436 | return 1; |
a1515161 | 437 | } |
be95adaf SH |
438 | cur++; |
439 | goto found; | |
ca0defb9 PB |
440 | } |
441 | /* | |
442 | * try to parse an IPv4 | |
443 | */ | |
444 | if (ISA_DIGIT(cur)) { | |
a1515161 | 445 | if (rfc3986_parse_dec_octet(&cur) != 0) { |
be95adaf | 446 | goto not_ipv4; |
a1515161 SH |
447 | } |
448 | if (*cur != '.') { | |
be95adaf | 449 | goto not_ipv4; |
a1515161 | 450 | } |
be95adaf | 451 | cur++; |
a1515161 | 452 | if (rfc3986_parse_dec_octet(&cur) != 0) { |
be95adaf | 453 | goto not_ipv4; |
a1515161 SH |
454 | } |
455 | if (*cur != '.') { | |
be95adaf | 456 | goto not_ipv4; |
a1515161 SH |
457 | } |
458 | if (rfc3986_parse_dec_octet(&cur) != 0) { | |
be95adaf | 459 | goto not_ipv4; |
a1515161 SH |
460 | } |
461 | if (*cur != '.') { | |
be95adaf | 462 | goto not_ipv4; |
a1515161 SH |
463 | } |
464 | if (rfc3986_parse_dec_octet(&cur) != 0) { | |
be95adaf | 465 | goto not_ipv4; |
a1515161 | 466 | } |
be95adaf SH |
467 | goto found; |
468 | not_ipv4: | |
ca0defb9 PB |
469 | cur = *str; |
470 | } | |
471 | /* | |
472 | * then this should be a hostname which can be empty | |
473 | */ | |
a1515161 | 474 | while (ISA_UNRESERVED(cur) || ISA_PCT_ENCODED(cur) || ISA_SUB_DELIM(cur)) { |
ca0defb9 | 475 | NEXT(cur); |
a1515161 | 476 | } |
ca0defb9 PB |
477 | found: |
478 | if (uri != NULL) { | |
44c2286b | 479 | g_free(uri->authority); |
be95adaf | 480 | uri->authority = NULL; |
44c2286b | 481 | g_free(uri->server); |
be95adaf | 482 | if (cur != host) { |
a1515161 | 483 | if (uri->cleanup & 2) { |
be95adaf | 484 | uri->server = g_strndup(host, cur - host); |
a1515161 | 485 | } else { |
7536acb4 | 486 | uri->server = g_uri_unescape_segment(host, cur, NULL); |
a1515161 SH |
487 | } |
488 | } else { | |
be95adaf | 489 | uri->server = NULL; |
a1515161 | 490 | } |
ca0defb9 PB |
491 | } |
492 | *str = cur; | |
42fa2725 | 493 | return 0; |
ca0defb9 PB |
494 | } |
495 | ||
496 | /** | |
497 | * rfc3986_parse_authority: | |
498 | * @uri: pointer to an URI structure | |
499 | * @str: the string to analyze | |
500 | * | |
501 | * Parse an authority part and fills in the appropriate fields | |
502 | * of the @uri structure | |
503 | * | |
504 | * authority = [ userinfo "@" ] host [ ":" port ] | |
505 | * | |
506 | * Returns 0 or the error code | |
507 | */ | |
be95adaf | 508 | static int rfc3986_parse_authority(URI *uri, const char **str) |
ca0defb9 PB |
509 | { |
510 | const char *cur; | |
511 | int ret; | |
512 | ||
513 | cur = *str; | |
514 | /* | |
736a83fa | 515 | * try to parse a userinfo and check for the trailing @ |
ca0defb9 PB |
516 | */ |
517 | ret = rfc3986_parse_user_info(uri, &cur); | |
a1515161 | 518 | if ((ret != 0) || (*cur != '@')) { |
ca0defb9 | 519 | cur = *str; |
a1515161 | 520 | } else { |
ca0defb9 | 521 | cur++; |
a1515161 | 522 | } |
ca0defb9 | 523 | ret = rfc3986_parse_host(uri, &cur); |
a1515161 | 524 | if (ret != 0) { |
42fa2725 | 525 | return ret; |
a1515161 | 526 | } |
ca0defb9 PB |
527 | if (*cur == ':') { |
528 | cur++; | |
529 | ret = rfc3986_parse_port(uri, &cur); | |
a1515161 | 530 | if (ret != 0) { |
42fa2725 | 531 | return ret; |
a1515161 | 532 | } |
ca0defb9 PB |
533 | } |
534 | *str = cur; | |
42fa2725 | 535 | return 0; |
ca0defb9 PB |
536 | } |
537 | ||
538 | /** | |
539 | * rfc3986_parse_segment: | |
540 | * @str: the string to analyze | |
541 | * @forbid: an optional forbidden character | |
542 | * @empty: allow an empty segment | |
543 | * | |
544 | * Parse a segment and fills in the appropriate fields | |
545 | * of the @uri structure | |
546 | * | |
547 | * segment = *pchar | |
548 | * segment-nz = 1*pchar | |
549 | * segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" ) | |
550 | * ; non-zero-length segment without any colon ":" | |
551 | * | |
552 | * Returns 0 or the error code | |
553 | */ | |
be95adaf | 554 | static int rfc3986_parse_segment(const char **str, char forbid, int empty) |
ca0defb9 PB |
555 | { |
556 | const char *cur; | |
557 | ||
558 | cur = *str; | |
559 | if (!ISA_PCHAR(cur)) { | |
a1515161 | 560 | if (empty) { |
42fa2725 | 561 | return 0; |
a1515161 | 562 | } |
42fa2725 | 563 | return 1; |
ca0defb9 | 564 | } |
a1515161 | 565 | while (ISA_PCHAR(cur) && (*cur != forbid)) { |
ca0defb9 | 566 | NEXT(cur); |
a1515161 | 567 | } |
ca0defb9 | 568 | *str = cur; |
42fa2725 | 569 | return 0; |
ca0defb9 PB |
570 | } |
571 | ||
572 | /** | |
573 | * rfc3986_parse_path_ab_empty: | |
574 | * @uri: pointer to an URI structure | |
575 | * @str: the string to analyze | |
576 | * | |
577 | * Parse an path absolute or empty and fills in the appropriate fields | |
578 | * of the @uri structure | |
579 | * | |
580 | * path-abempty = *( "/" segment ) | |
581 | * | |
582 | * Returns 0 or the error code | |
583 | */ | |
be95adaf | 584 | static int rfc3986_parse_path_ab_empty(URI *uri, const char **str) |
ca0defb9 PB |
585 | { |
586 | const char *cur; | |
587 | int ret; | |
588 | ||
589 | cur = *str; | |
590 | ||
591 | while (*cur == '/') { | |
592 | cur++; | |
be95adaf | 593 | ret = rfc3986_parse_segment(&cur, 0, 1); |
a1515161 | 594 | if (ret != 0) { |
42fa2725 | 595 | return ret; |
a1515161 | 596 | } |
ca0defb9 PB |
597 | } |
598 | if (uri != NULL) { | |
44c2286b | 599 | g_free(uri->path); |
ca0defb9 | 600 | if (*str != cur) { |
a1515161 | 601 | if (uri->cleanup & 2) { |
ca0defb9 | 602 | uri->path = g_strndup(*str, cur - *str); |
a1515161 | 603 | } else { |
7536acb4 | 604 | uri->path = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 605 | } |
ca0defb9 PB |
606 | } else { |
607 | uri->path = NULL; | |
608 | } | |
609 | } | |
610 | *str = cur; | |
42fa2725 | 611 | return 0; |
ca0defb9 PB |
612 | } |
613 | ||
614 | /** | |
615 | * rfc3986_parse_path_absolute: | |
616 | * @uri: pointer to an URI structure | |
617 | * @str: the string to analyze | |
618 | * | |
619 | * Parse an path absolute and fills in the appropriate fields | |
620 | * of the @uri structure | |
621 | * | |
622 | * path-absolute = "/" [ segment-nz *( "/" segment ) ] | |
623 | * | |
624 | * Returns 0 or the error code | |
625 | */ | |
be95adaf | 626 | static int rfc3986_parse_path_absolute(URI *uri, const char **str) |
ca0defb9 PB |
627 | { |
628 | const char *cur; | |
629 | int ret; | |
630 | ||
631 | cur = *str; | |
632 | ||
a1515161 | 633 | if (*cur != '/') { |
42fa2725 | 634 | return 1; |
a1515161 | 635 | } |
ca0defb9 PB |
636 | cur++; |
637 | ret = rfc3986_parse_segment(&cur, 0, 0); | |
638 | if (ret == 0) { | |
be95adaf SH |
639 | while (*cur == '/') { |
640 | cur++; | |
641 | ret = rfc3986_parse_segment(&cur, 0, 1); | |
a1515161 | 642 | if (ret != 0) { |
42fa2725 | 643 | return ret; |
a1515161 | 644 | } |
be95adaf | 645 | } |
ca0defb9 PB |
646 | } |
647 | if (uri != NULL) { | |
44c2286b | 648 | g_free(uri->path); |
ca0defb9 | 649 | if (cur != *str) { |
a1515161 | 650 | if (uri->cleanup & 2) { |
ca0defb9 | 651 | uri->path = g_strndup(*str, cur - *str); |
a1515161 | 652 | } else { |
7536acb4 | 653 | uri->path = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 654 | } |
ca0defb9 PB |
655 | } else { |
656 | uri->path = NULL; | |
657 | } | |
658 | } | |
659 | *str = cur; | |
42fa2725 | 660 | return 0; |
ca0defb9 PB |
661 | } |
662 | ||
663 | /** | |
664 | * rfc3986_parse_path_rootless: | |
665 | * @uri: pointer to an URI structure | |
666 | * @str: the string to analyze | |
667 | * | |
668 | * Parse an path without root and fills in the appropriate fields | |
669 | * of the @uri structure | |
670 | * | |
671 | * path-rootless = segment-nz *( "/" segment ) | |
672 | * | |
673 | * Returns 0 or the error code | |
674 | */ | |
be95adaf | 675 | static int rfc3986_parse_path_rootless(URI *uri, const char **str) |
ca0defb9 PB |
676 | { |
677 | const char *cur; | |
678 | int ret; | |
679 | ||
680 | cur = *str; | |
681 | ||
682 | ret = rfc3986_parse_segment(&cur, 0, 0); | |
a1515161 | 683 | if (ret != 0) { |
42fa2725 | 684 | return ret; |
a1515161 | 685 | } |
ca0defb9 PB |
686 | while (*cur == '/') { |
687 | cur++; | |
be95adaf | 688 | ret = rfc3986_parse_segment(&cur, 0, 1); |
a1515161 | 689 | if (ret != 0) { |
42fa2725 | 690 | return ret; |
a1515161 | 691 | } |
ca0defb9 PB |
692 | } |
693 | if (uri != NULL) { | |
44c2286b | 694 | g_free(uri->path); |
ca0defb9 | 695 | if (cur != *str) { |
a1515161 | 696 | if (uri->cleanup & 2) { |
ca0defb9 | 697 | uri->path = g_strndup(*str, cur - *str); |
a1515161 | 698 | } else { |
7536acb4 | 699 | uri->path = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 700 | } |
ca0defb9 PB |
701 | } else { |
702 | uri->path = NULL; | |
703 | } | |
704 | } | |
705 | *str = cur; | |
42fa2725 | 706 | return 0; |
ca0defb9 PB |
707 | } |
708 | ||
709 | /** | |
710 | * rfc3986_parse_path_no_scheme: | |
711 | * @uri: pointer to an URI structure | |
712 | * @str: the string to analyze | |
713 | * | |
714 | * Parse an path which is not a scheme and fills in the appropriate fields | |
715 | * of the @uri structure | |
716 | * | |
717 | * path-noscheme = segment-nz-nc *( "/" segment ) | |
718 | * | |
719 | * Returns 0 or the error code | |
720 | */ | |
be95adaf | 721 | static int rfc3986_parse_path_no_scheme(URI *uri, const char **str) |
ca0defb9 PB |
722 | { |
723 | const char *cur; | |
724 | int ret; | |
725 | ||
726 | cur = *str; | |
727 | ||
728 | ret = rfc3986_parse_segment(&cur, ':', 0); | |
a1515161 | 729 | if (ret != 0) { |
42fa2725 | 730 | return ret; |
a1515161 | 731 | } |
ca0defb9 PB |
732 | while (*cur == '/') { |
733 | cur++; | |
be95adaf | 734 | ret = rfc3986_parse_segment(&cur, 0, 1); |
a1515161 | 735 | if (ret != 0) { |
42fa2725 | 736 | return ret; |
a1515161 | 737 | } |
ca0defb9 PB |
738 | } |
739 | if (uri != NULL) { | |
44c2286b | 740 | g_free(uri->path); |
ca0defb9 | 741 | if (cur != *str) { |
a1515161 | 742 | if (uri->cleanup & 2) { |
ca0defb9 | 743 | uri->path = g_strndup(*str, cur - *str); |
a1515161 | 744 | } else { |
7536acb4 | 745 | uri->path = g_uri_unescape_segment(*str, cur, NULL); |
a1515161 | 746 | } |
ca0defb9 PB |
747 | } else { |
748 | uri->path = NULL; | |
749 | } | |
750 | } | |
751 | *str = cur; | |
42fa2725 | 752 | return 0; |
ca0defb9 PB |
753 | } |
754 | ||
755 | /** | |
756 | * rfc3986_parse_hier_part: | |
757 | * @uri: pointer to an URI structure | |
758 | * @str: the string to analyze | |
759 | * | |
760 | * Parse an hierarchical part and fills in the appropriate fields | |
761 | * of the @uri structure | |
762 | * | |
763 | * hier-part = "//" authority path-abempty | |
764 | * / path-absolute | |
765 | * / path-rootless | |
766 | * / path-empty | |
767 | * | |
768 | * Returns 0 or the error code | |
769 | */ | |
be95adaf | 770 | static int rfc3986_parse_hier_part(URI *uri, const char **str) |
ca0defb9 PB |
771 | { |
772 | const char *cur; | |
773 | int ret; | |
774 | ||
775 | cur = *str; | |
776 | ||
777 | if ((*cur == '/') && (*(cur + 1) == '/')) { | |
778 | cur += 2; | |
be95adaf | 779 | ret = rfc3986_parse_authority(uri, &cur); |
a1515161 | 780 | if (ret != 0) { |
42fa2725 | 781 | return ret; |
a1515161 | 782 | } |
be95adaf | 783 | ret = rfc3986_parse_path_ab_empty(uri, &cur); |
a1515161 | 784 | if (ret != 0) { |
42fa2725 | 785 | return ret; |
a1515161 | 786 | } |
be95adaf | 787 | *str = cur; |
42fa2725 | 788 | return 0; |
ca0defb9 PB |
789 | } else if (*cur == '/') { |
790 | ret = rfc3986_parse_path_absolute(uri, &cur); | |
a1515161 | 791 | if (ret != 0) { |
42fa2725 | 792 | return ret; |
a1515161 | 793 | } |
ca0defb9 PB |
794 | } else if (ISA_PCHAR(cur)) { |
795 | ret = rfc3986_parse_path_rootless(uri, &cur); | |
a1515161 | 796 | if (ret != 0) { |
42fa2725 | 797 | return ret; |
a1515161 | 798 | } |
ca0defb9 | 799 | } else { |
be95adaf SH |
800 | /* path-empty is effectively empty */ |
801 | if (uri != NULL) { | |
44c2286b | 802 | g_free(uri->path); |
be95adaf SH |
803 | uri->path = NULL; |
804 | } | |
ca0defb9 PB |
805 | } |
806 | *str = cur; | |
42fa2725 | 807 | return 0; |
ca0defb9 PB |
808 | } |
809 | ||
810 | /** | |
811 | * rfc3986_parse_relative_ref: | |
812 | * @uri: pointer to an URI structure | |
813 | * @str: the string to analyze | |
814 | * | |
815 | * Parse an URI string and fills in the appropriate fields | |
816 | * of the @uri structure | |
817 | * | |
818 | * relative-ref = relative-part [ "?" query ] [ "#" fragment ] | |
819 | * relative-part = "//" authority path-abempty | |
820 | * / path-absolute | |
821 | * / path-noscheme | |
822 | * / path-empty | |
823 | * | |
824 | * Returns 0 or the error code | |
825 | */ | |
be95adaf SH |
826 | static int rfc3986_parse_relative_ref(URI *uri, const char *str) |
827 | { | |
ca0defb9 PB |
828 | int ret; |
829 | ||
830 | if ((*str == '/') && (*(str + 1) == '/')) { | |
831 | str += 2; | |
be95adaf | 832 | ret = rfc3986_parse_authority(uri, &str); |
a1515161 | 833 | if (ret != 0) { |
42fa2725 | 834 | return ret; |
a1515161 | 835 | } |
be95adaf | 836 | ret = rfc3986_parse_path_ab_empty(uri, &str); |
a1515161 | 837 | if (ret != 0) { |
42fa2725 | 838 | return ret; |
a1515161 | 839 | } |
ca0defb9 | 840 | } else if (*str == '/') { |
be95adaf | 841 | ret = rfc3986_parse_path_absolute(uri, &str); |
a1515161 | 842 | if (ret != 0) { |
42fa2725 | 843 | return ret; |
a1515161 | 844 | } |
ca0defb9 PB |
845 | } else if (ISA_PCHAR(str)) { |
846 | ret = rfc3986_parse_path_no_scheme(uri, &str); | |
a1515161 | 847 | if (ret != 0) { |
42fa2725 | 848 | return ret; |
a1515161 | 849 | } |
ca0defb9 | 850 | } else { |
be95adaf SH |
851 | /* path-empty is effectively empty */ |
852 | if (uri != NULL) { | |
44c2286b | 853 | g_free(uri->path); |
be95adaf SH |
854 | uri->path = NULL; |
855 | } | |
ca0defb9 PB |
856 | } |
857 | ||
858 | if (*str == '?') { | |
be95adaf SH |
859 | str++; |
860 | ret = rfc3986_parse_query(uri, &str); | |
a1515161 | 861 | if (ret != 0) { |
42fa2725 | 862 | return ret; |
a1515161 | 863 | } |
ca0defb9 PB |
864 | } |
865 | if (*str == '#') { | |
be95adaf SH |
866 | str++; |
867 | ret = rfc3986_parse_fragment(uri, &str); | |
a1515161 | 868 | if (ret != 0) { |
42fa2725 | 869 | return ret; |
a1515161 | 870 | } |
ca0defb9 PB |
871 | } |
872 | if (*str != 0) { | |
be95adaf | 873 | uri_clean(uri); |
42fa2725 | 874 | return 1; |
ca0defb9 | 875 | } |
42fa2725 | 876 | return 0; |
ca0defb9 PB |
877 | } |
878 | ||
ca0defb9 PB |
879 | /** |
880 | * rfc3986_parse: | |
881 | * @uri: pointer to an URI structure | |
882 | * @str: the string to analyze | |
883 | * | |
884 | * Parse an URI string and fills in the appropriate fields | |
885 | * of the @uri structure | |
886 | * | |
887 | * scheme ":" hier-part [ "?" query ] [ "#" fragment ] | |
888 | * | |
889 | * Returns 0 or the error code | |
890 | */ | |
be95adaf SH |
891 | static int rfc3986_parse(URI *uri, const char *str) |
892 | { | |
ca0defb9 PB |
893 | int ret; |
894 | ||
895 | ret = rfc3986_parse_scheme(uri, &str); | |
a1515161 | 896 | if (ret != 0) { |
42fa2725 | 897 | return ret; |
a1515161 | 898 | } |
ca0defb9 | 899 | if (*str != ':') { |
42fa2725 | 900 | return 1; |
ca0defb9 PB |
901 | } |
902 | str++; | |
903 | ret = rfc3986_parse_hier_part(uri, &str); | |
a1515161 | 904 | if (ret != 0) { |
42fa2725 | 905 | return ret; |
a1515161 | 906 | } |
ca0defb9 | 907 | if (*str == '?') { |
be95adaf SH |
908 | str++; |
909 | ret = rfc3986_parse_query(uri, &str); | |
a1515161 | 910 | if (ret != 0) { |
42fa2725 | 911 | return ret; |
a1515161 | 912 | } |
ca0defb9 PB |
913 | } |
914 | if (*str == '#') { | |
be95adaf SH |
915 | str++; |
916 | ret = rfc3986_parse_fragment(uri, &str); | |
a1515161 | 917 | if (ret != 0) { |
42fa2725 | 918 | return ret; |
a1515161 | 919 | } |
ca0defb9 PB |
920 | } |
921 | if (*str != 0) { | |
be95adaf | 922 | uri_clean(uri); |
42fa2725 | 923 | return 1; |
ca0defb9 | 924 | } |
42fa2725 | 925 | return 0; |
ca0defb9 PB |
926 | } |
927 | ||
928 | /** | |
929 | * rfc3986_parse_uri_reference: | |
930 | * @uri: pointer to an URI structure | |
931 | * @str: the string to analyze | |
932 | * | |
933 | * Parse an URI reference string and fills in the appropriate fields | |
934 | * of the @uri structure | |
935 | * | |
936 | * URI-reference = URI / relative-ref | |
937 | * | |
938 | * Returns 0 or the error code | |
939 | */ | |
be95adaf SH |
940 | static int rfc3986_parse_uri_reference(URI *uri, const char *str) |
941 | { | |
ca0defb9 PB |
942 | int ret; |
943 | ||
a1515161 | 944 | if (str == NULL) { |
42fa2725 | 945 | return -1; |
a1515161 | 946 | } |
ca0defb9 PB |
947 | uri_clean(uri); |
948 | ||
949 | /* | |
950 | * Try first to parse absolute refs, then fallback to relative if | |
951 | * it fails. | |
952 | */ | |
953 | ret = rfc3986_parse(uri, str); | |
954 | if (ret != 0) { | |
be95adaf | 955 | uri_clean(uri); |
ca0defb9 | 956 | ret = rfc3986_parse_relative_ref(uri, str); |
be95adaf SH |
957 | if (ret != 0) { |
958 | uri_clean(uri); | |
42fa2725 | 959 | return ret; |
be95adaf | 960 | } |
ca0defb9 | 961 | } |
42fa2725 | 962 | return 0; |
ca0defb9 PB |
963 | } |
964 | ||
965 | /** | |
966 | * uri_parse: | |
967 | * @str: the URI string to analyze | |
968 | * | |
969 | * Parse an URI based on RFC 3986 | |
970 | * | |
971 | * URI-reference = [ absoluteURI | relativeURI ] [ "#" fragment ] | |
972 | * | |
973 | * Returns a newly built URI or NULL in case of error | |
974 | */ | |
be95adaf SH |
975 | URI *uri_parse(const char *str) |
976 | { | |
ca0defb9 PB |
977 | URI *uri; |
978 | int ret; | |
979 | ||
a1515161 | 980 | if (str == NULL) { |
42fa2725 | 981 | return NULL; |
a1515161 | 982 | } |
ca0defb9 | 983 | uri = uri_new(); |
c89c6e80 MA |
984 | ret = rfc3986_parse_uri_reference(uri, str); |
985 | if (ret) { | |
986 | uri_free(uri); | |
42fa2725 | 987 | return NULL; |
ca0defb9 | 988 | } |
42fa2725 | 989 | return uri; |
ca0defb9 PB |
990 | } |
991 | ||
992 | /** | |
993 | * uri_parse_into: | |
994 | * @uri: pointer to an URI structure | |
995 | * @str: the string to analyze | |
996 | * | |
997 | * Parse an URI reference string based on RFC 3986 and fills in the | |
998 | * appropriate fields of the @uri structure | |
999 | * | |
1000 | * URI-reference = URI / relative-ref | |
1001 | * | |
1002 | * Returns 0 or the error code | |
1003 | */ | |
be95adaf SH |
1004 | int uri_parse_into(URI *uri, const char *str) |
1005 | { | |
42fa2725 | 1006 | return rfc3986_parse_uri_reference(uri, str); |
ca0defb9 PB |
1007 | } |
1008 | ||
1009 | /** | |
1010 | * uri_parse_raw: | |
1011 | * @str: the URI string to analyze | |
1012 | * @raw: if 1 unescaping of URI pieces are disabled | |
1013 | * | |
1014 | * Parse an URI but allows to keep intact the original fragments. | |
1015 | * | |
1016 | * URI-reference = URI / relative-ref | |
1017 | * | |
1018 | * Returns a newly built URI or NULL in case of error | |
1019 | */ | |
be95adaf SH |
1020 | URI *uri_parse_raw(const char *str, int raw) |
1021 | { | |
ca0defb9 PB |
1022 | URI *uri; |
1023 | int ret; | |
1024 | ||
a1515161 | 1025 | if (str == NULL) { |
42fa2725 | 1026 | return NULL; |
a1515161 | 1027 | } |
ca0defb9 | 1028 | uri = uri_new(); |
c89c6e80 MA |
1029 | if (raw) { |
1030 | uri->cleanup |= 2; | |
1031 | } | |
1032 | ret = uri_parse_into(uri, str); | |
1033 | if (ret) { | |
1034 | uri_free(uri); | |
42fa2725 | 1035 | return NULL; |
ca0defb9 | 1036 | } |
42fa2725 | 1037 | return uri; |
ca0defb9 PB |
1038 | } |
1039 | ||
1040 | /************************************************************************ | |
be95adaf SH |
1041 | * * |
1042 | * Generic URI structure functions * | |
1043 | * * | |
ca0defb9 PB |
1044 | ************************************************************************/ |
1045 | ||
1046 | /** | |
1047 | * uri_new: | |
1048 | * | |
1049 | * Simply creates an empty URI | |
1050 | * | |
1051 | * Returns the new structure or NULL in case of error | |
1052 | */ | |
be95adaf SH |
1053 | URI *uri_new(void) |
1054 | { | |
4a4ff4c5 | 1055 | return g_new0(URI, 1); |
ca0defb9 PB |
1056 | } |
1057 | ||
1058 | /** | |
1059 | * realloc2n: | |
1060 | * | |
1061 | * Function to handle properly a reallocation when saving an URI | |
1062 | * Also imposes some limit on the length of an URI string output | |
1063 | */ | |
be95adaf SH |
1064 | static char *realloc2n(char *ret, int *max) |
1065 | { | |
ca0defb9 PB |
1066 | char *temp; |
1067 | int tmp; | |
1068 | ||
1069 | tmp = *max * 2; | |
1070 | temp = g_realloc(ret, (tmp + 1)); | |
1071 | *max = tmp; | |
42fa2725 | 1072 | return temp; |
ca0defb9 PB |
1073 | } |
1074 | ||
1075 | /** | |
1076 | * uri_to_string: | |
1077 | * @uri: pointer to an URI | |
1078 | * | |
1079 | * Save the URI as an escaped string | |
1080 | * | |
1081 | * Returns a new string (to be deallocated by caller) | |
1082 | */ | |
be95adaf SH |
1083 | char *uri_to_string(URI *uri) |
1084 | { | |
ca0defb9 PB |
1085 | char *ret = NULL; |
1086 | char *temp; | |
1087 | const char *p; | |
1088 | int len; | |
1089 | int max; | |
1090 | ||
a1515161 | 1091 | if (uri == NULL) { |
42fa2725 | 1092 | return NULL; |
a1515161 | 1093 | } |
ca0defb9 PB |
1094 | |
1095 | max = 80; | |
1096 | ret = g_malloc(max + 1); | |
1097 | len = 0; | |
1098 | ||
1099 | if (uri->scheme != NULL) { | |
be95adaf SH |
1100 | p = uri->scheme; |
1101 | while (*p != 0) { | |
1102 | if (len >= max) { | |
ca0defb9 | 1103 | temp = realloc2n(ret, &max); |
be95adaf SH |
1104 | ret = temp; |
1105 | } | |
1106 | ret[len++] = *p++; | |
1107 | } | |
1108 | if (len >= max) { | |
ca0defb9 | 1109 | temp = realloc2n(ret, &max); |
ca0defb9 | 1110 | ret = temp; |
be95adaf SH |
1111 | } |
1112 | ret[len++] = ':'; | |
ca0defb9 PB |
1113 | } |
1114 | if (uri->opaque != NULL) { | |
be95adaf SH |
1115 | p = uri->opaque; |
1116 | while (*p != 0) { | |
1117 | if (len + 3 >= max) { | |
ca0defb9 | 1118 | temp = realloc2n(ret, &max); |
ca0defb9 | 1119 | ret = temp; |
be95adaf | 1120 | } |
a1515161 | 1121 | if (IS_RESERVED(*(p)) || IS_UNRESERVED(*(p))) { |
be95adaf | 1122 | ret[len++] = *p++; |
a1515161 | 1123 | } else { |
be95adaf SH |
1124 | int val = *(unsigned char *)p++; |
1125 | int hi = val / 0x10, lo = val % 0x10; | |
1126 | ret[len++] = '%'; | |
1127 | ret[len++] = hi + (hi > 9 ? 'A' - 10 : '0'); | |
1128 | ret[len++] = lo + (lo > 9 ? 'A' - 10 : '0'); | |
1129 | } | |
1130 | } | |
ca0defb9 | 1131 | } else { |
be95adaf SH |
1132 | if (uri->server != NULL) { |
1133 | if (len + 3 >= max) { | |
ca0defb9 | 1134 | temp = realloc2n(ret, &max); |
ca0defb9 | 1135 | ret = temp; |
be95adaf SH |
1136 | } |
1137 | ret[len++] = '/'; | |
1138 | ret[len++] = '/'; | |
1139 | if (uri->user != NULL) { | |
1140 | p = uri->user; | |
1141 | while (*p != 0) { | |
1142 | if (len + 3 >= max) { | |
ca0defb9 | 1143 | temp = realloc2n(ret, &max); |
ca0defb9 | 1144 | ret = temp; |
be95adaf SH |
1145 | } |
1146 | if ((IS_UNRESERVED(*(p))) || ((*(p) == ';')) || | |
1147 | ((*(p) == ':')) || ((*(p) == '&')) || ((*(p) == '=')) || | |
a1515161 | 1148 | ((*(p) == '+')) || ((*(p) == '$')) || ((*(p) == ','))) { |
be95adaf | 1149 | ret[len++] = *p++; |
a1515161 | 1150 | } else { |
be95adaf SH |
1151 | int val = *(unsigned char *)p++; |
1152 | int hi = val / 0x10, lo = val % 0x10; | |
1153 | ret[len++] = '%'; | |
1154 | ret[len++] = hi + (hi > 9 ? 'A' - 10 : '0'); | |
1155 | ret[len++] = lo + (lo > 9 ? 'A' - 10 : '0'); | |
1156 | } | |
1157 | } | |
1158 | if (len + 3 >= max) { | |
ca0defb9 | 1159 | temp = realloc2n(ret, &max); |
ca0defb9 | 1160 | ret = temp; |
be95adaf SH |
1161 | } |
1162 | ret[len++] = '@'; | |
1163 | } | |
1164 | p = uri->server; | |
1165 | while (*p != 0) { | |
1166 | if (len >= max) { | |
ca0defb9 | 1167 | temp = realloc2n(ret, &max); |
ca0defb9 | 1168 | ret = temp; |
be95adaf SH |
1169 | } |
1170 | ret[len++] = *p++; | |
1171 | } | |
1172 | if (uri->port > 0) { | |
1173 | if (len + 10 >= max) { | |
ca0defb9 | 1174 | temp = realloc2n(ret, &max); |
ca0defb9 | 1175 | ret = temp; |
be95adaf SH |
1176 | } |
1177 | len += snprintf(&ret[len], max - len, ":%d", uri->port); | |
1178 | } | |
1179 | } else if (uri->authority != NULL) { | |
1180 | if (len + 3 >= max) { | |
ca0defb9 | 1181 | temp = realloc2n(ret, &max); |
ca0defb9 | 1182 | ret = temp; |
be95adaf SH |
1183 | } |
1184 | ret[len++] = '/'; | |
1185 | ret[len++] = '/'; | |
1186 | p = uri->authority; | |
1187 | while (*p != 0) { | |
1188 | if (len + 3 >= max) { | |
ca0defb9 | 1189 | temp = realloc2n(ret, &max); |
ca0defb9 | 1190 | ret = temp; |
be95adaf SH |
1191 | } |
1192 | if ((IS_UNRESERVED(*(p))) || ((*(p) == '$')) || | |
1193 | ((*(p) == ',')) || ((*(p) == ';')) || ((*(p) == ':')) || | |
1194 | ((*(p) == '@')) || ((*(p) == '&')) || ((*(p) == '=')) || | |
a1515161 | 1195 | ((*(p) == '+'))) { |
be95adaf | 1196 | ret[len++] = *p++; |
a1515161 | 1197 | } else { |
be95adaf SH |
1198 | int val = *(unsigned char *)p++; |
1199 | int hi = val / 0x10, lo = val % 0x10; | |
1200 | ret[len++] = '%'; | |
1201 | ret[len++] = hi + (hi > 9 ? 'A' - 10 : '0'); | |
1202 | ret[len++] = lo + (lo > 9 ? 'A' - 10 : '0'); | |
1203 | } | |
1204 | } | |
1205 | } else if (uri->scheme != NULL) { | |
1206 | if (len + 3 >= max) { | |
ca0defb9 | 1207 | temp = realloc2n(ret, &max); |
ca0defb9 | 1208 | ret = temp; |
be95adaf SH |
1209 | } |
1210 | ret[len++] = '/'; | |
1211 | ret[len++] = '/'; | |
1212 | } | |
1213 | if (uri->path != NULL) { | |
1214 | p = uri->path; | |
1215 | /* | |
1216 | * the colon in file:///d: should not be escaped or | |
1217 | * Windows accesses fail later. | |
1218 | */ | |
1219 | if ((uri->scheme != NULL) && (p[0] == '/') && | |
1220 | (((p[1] >= 'a') && (p[1] <= 'z')) || | |
1221 | ((p[1] >= 'A') && (p[1] <= 'Z'))) && | |
1222 | (p[2] == ':') && (!strcmp(uri->scheme, "file"))) { | |
1223 | if (len + 3 >= max) { | |
ca0defb9 | 1224 | temp = realloc2n(ret, &max); |
ca0defb9 | 1225 | ret = temp; |
be95adaf SH |
1226 | } |
1227 | ret[len++] = *p++; | |
1228 | ret[len++] = *p++; | |
1229 | ret[len++] = *p++; | |
1230 | } | |
1231 | while (*p != 0) { | |
1232 | if (len + 3 >= max) { | |
ca0defb9 | 1233 | temp = realloc2n(ret, &max); |
ca0defb9 | 1234 | ret = temp; |
be95adaf SH |
1235 | } |
1236 | if ((IS_UNRESERVED(*(p))) || ((*(p) == '/')) || | |
ca0defb9 | 1237 | ((*(p) == ';')) || ((*(p) == '@')) || ((*(p) == '&')) || |
be95adaf | 1238 | ((*(p) == '=')) || ((*(p) == '+')) || ((*(p) == '$')) || |
a1515161 | 1239 | ((*(p) == ','))) { |
be95adaf | 1240 | ret[len++] = *p++; |
a1515161 | 1241 | } else { |
be95adaf SH |
1242 | int val = *(unsigned char *)p++; |
1243 | int hi = val / 0x10, lo = val % 0x10; | |
1244 | ret[len++] = '%'; | |
1245 | ret[len++] = hi + (hi > 9 ? 'A' - 10 : '0'); | |
1246 | ret[len++] = lo + (lo > 9 ? 'A' - 10 : '0'); | |
1247 | } | |
1248 | } | |
1249 | } | |
1250 | if (uri->query != NULL) { | |
1251 | if (len + 1 >= max) { | |
ca0defb9 | 1252 | temp = realloc2n(ret, &max); |
ca0defb9 | 1253 | ret = temp; |
be95adaf SH |
1254 | } |
1255 | ret[len++] = '?'; | |
1256 | p = uri->query; | |
1257 | while (*p != 0) { | |
1258 | if (len + 1 >= max) { | |
ca0defb9 | 1259 | temp = realloc2n(ret, &max); |
ca0defb9 | 1260 | ret = temp; |
be95adaf SH |
1261 | } |
1262 | ret[len++] = *p++; | |
1263 | } | |
1264 | } | |
ca0defb9 PB |
1265 | } |
1266 | if (uri->fragment != NULL) { | |
be95adaf | 1267 | if (len + 3 >= max) { |
ca0defb9 | 1268 | temp = realloc2n(ret, &max); |
ca0defb9 | 1269 | ret = temp; |
be95adaf SH |
1270 | } |
1271 | ret[len++] = '#'; | |
1272 | p = uri->fragment; | |
1273 | while (*p != 0) { | |
1274 | if (len + 3 >= max) { | |
ca0defb9 | 1275 | temp = realloc2n(ret, &max); |
ca0defb9 | 1276 | ret = temp; |
be95adaf | 1277 | } |
a1515161 | 1278 | if ((IS_UNRESERVED(*(p))) || (IS_RESERVED(*(p)))) { |
be95adaf | 1279 | ret[len++] = *p++; |
a1515161 | 1280 | } else { |
be95adaf SH |
1281 | int val = *(unsigned char *)p++; |
1282 | int hi = val / 0x10, lo = val % 0x10; | |
1283 | ret[len++] = '%'; | |
1284 | ret[len++] = hi + (hi > 9 ? 'A' - 10 : '0'); | |
1285 | ret[len++] = lo + (lo > 9 ? 'A' - 10 : '0'); | |
1286 | } | |
1287 | } | |
ca0defb9 PB |
1288 | } |
1289 | if (len >= max) { | |
1290 | temp = realloc2n(ret, &max); | |
ca0defb9 PB |
1291 | ret = temp; |
1292 | } | |
1293 | ret[len] = 0; | |
42fa2725 | 1294 | return ret; |
ca0defb9 PB |
1295 | } |
1296 | ||
1297 | /** | |
1298 | * uri_clean: | |
1299 | * @uri: pointer to an URI | |
1300 | * | |
1301 | * Make sure the URI struct is free of content | |
1302 | */ | |
be95adaf SH |
1303 | static void uri_clean(URI *uri) |
1304 | { | |
a1515161 | 1305 | if (uri == NULL) { |
be95adaf | 1306 | return; |
a1515161 | 1307 | } |
ca0defb9 | 1308 | |
44c2286b | 1309 | g_free(uri->scheme); |
ca0defb9 | 1310 | uri->scheme = NULL; |
44c2286b | 1311 | g_free(uri->server); |
ca0defb9 | 1312 | uri->server = NULL; |
44c2286b | 1313 | g_free(uri->user); |
ca0defb9 | 1314 | uri->user = NULL; |
44c2286b | 1315 | g_free(uri->path); |
ca0defb9 | 1316 | uri->path = NULL; |
44c2286b | 1317 | g_free(uri->fragment); |
ca0defb9 | 1318 | uri->fragment = NULL; |
44c2286b | 1319 | g_free(uri->opaque); |
ca0defb9 | 1320 | uri->opaque = NULL; |
44c2286b | 1321 | g_free(uri->authority); |
ca0defb9 | 1322 | uri->authority = NULL; |
44c2286b | 1323 | g_free(uri->query); |
ca0defb9 PB |
1324 | uri->query = NULL; |
1325 | } | |
1326 | ||
1327 | /** | |
1328 | * uri_free: | |
c2615bdf | 1329 | * @uri: pointer to an URI, NULL is ignored |
ca0defb9 PB |
1330 | * |
1331 | * Free up the URI struct | |
1332 | */ | |
be95adaf SH |
1333 | void uri_free(URI *uri) |
1334 | { | |
ca0defb9 PB |
1335 | uri_clean(uri); |
1336 | g_free(uri); | |
1337 | } | |
1338 | ||
ca0defb9 | 1339 | /************************************************************************ |
be95adaf SH |
1340 | * * |
1341 | * Public functions * | |
1342 | * * | |
ca0defb9 PB |
1343 | ************************************************************************/ |
1344 | ||
ca0defb9 PB |
1345 | /* |
1346 | * Utility functions to help parse and assemble query strings. | |
1347 | */ | |
1348 | ||
be95adaf | 1349 | struct QueryParams *query_params_new(int init_alloc) |
ca0defb9 PB |
1350 | { |
1351 | struct QueryParams *ps; | |
1352 | ||
a1515161 | 1353 | if (init_alloc <= 0) { |
be95adaf | 1354 | init_alloc = 1; |
a1515161 | 1355 | } |
ca0defb9 PB |
1356 | |
1357 | ps = g_new(QueryParams, 1); | |
1358 | ps->n = 0; | |
1359 | ps->alloc = init_alloc; | |
1360 | ps->p = g_new(QueryParam, ps->alloc); | |
1361 | ||
1362 | return ps; | |
1363 | } | |
1364 | ||
1365 | /* Ensure there is space to store at least one more parameter | |
1366 | * at the end of the set. | |
1367 | */ | |
be95adaf SH |
1368 | static int query_params_append(struct QueryParams *ps, const char *name, |
1369 | const char *value) | |
ca0defb9 PB |
1370 | { |
1371 | if (ps->n >= ps->alloc) { | |
1372 | ps->p = g_renew(QueryParam, ps->p, ps->alloc * 2); | |
1373 | ps->alloc *= 2; | |
1374 | } | |
1375 | ||
1376 | ps->p[ps->n].name = g_strdup(name); | |
7f303adc | 1377 | ps->p[ps->n].value = g_strdup(value); |
ca0defb9 PB |
1378 | ps->p[ps->n].ignore = 0; |
1379 | ps->n++; | |
1380 | ||
1381 | return 0; | |
1382 | } | |
1383 | ||
be95adaf | 1384 | void query_params_free(struct QueryParams *ps) |
ca0defb9 PB |
1385 | { |
1386 | int i; | |
1387 | ||
1388 | for (i = 0; i < ps->n; ++i) { | |
be95adaf SH |
1389 | g_free(ps->p[i].name); |
1390 | g_free(ps->p[i].value); | |
ca0defb9 | 1391 | } |
be95adaf SH |
1392 | g_free(ps->p); |
1393 | g_free(ps); | |
ca0defb9 PB |
1394 | } |
1395 | ||
be95adaf | 1396 | struct QueryParams *query_params_parse(const char *query) |
ca0defb9 PB |
1397 | { |
1398 | struct QueryParams *ps; | |
1399 | const char *end, *eq; | |
1400 | ||
be95adaf | 1401 | ps = query_params_new(0); |
a1515161 | 1402 | if (!query || query[0] == '\0') { |
be95adaf | 1403 | return ps; |
a1515161 | 1404 | } |
ca0defb9 PB |
1405 | |
1406 | while (*query) { | |
1407 | char *name = NULL, *value = NULL; | |
1408 | ||
1409 | /* Find the next separator, or end of the string. */ | |
be95adaf | 1410 | end = strchr(query, '&'); |
a1515161 | 1411 | if (!end) { |
5c99fa37 | 1412 | end = qemu_strchrnul(query, ';'); |
a1515161 | 1413 | } |
ca0defb9 PB |
1414 | |
1415 | /* Find the first '=' character between here and end. */ | |
be95adaf | 1416 | eq = strchr(query, '='); |
a1515161 | 1417 | if (eq && eq >= end) { |
be95adaf | 1418 | eq = NULL; |
a1515161 | 1419 | } |
ca0defb9 PB |
1420 | |
1421 | /* Empty section (eg. "&&"). */ | |
a1515161 | 1422 | if (end == query) { |
ca0defb9 | 1423 | goto next; |
a1515161 | 1424 | } |
ca0defb9 PB |
1425 | |
1426 | /* If there is no '=' character, then we have just "name" | |
1427 | * and consistent with CGI.pm we assume value is "". | |
1428 | */ | |
1429 | else if (!eq) { | |
7536acb4 | 1430 | name = g_uri_unescape_segment(query, end, NULL); |
ca0defb9 PB |
1431 | value = NULL; |
1432 | } | |
1433 | /* Or if we have "name=" here (works around annoying | |
1434 | * problem when calling uri_string_unescape with len = 0). | |
1435 | */ | |
be95adaf | 1436 | else if (eq + 1 == end) { |
7536acb4 | 1437 | name = g_uri_unescape_segment(query, eq, NULL); |
ca0defb9 PB |
1438 | value = g_new0(char, 1); |
1439 | } | |
1440 | /* If the '=' character is at the beginning then we have | |
1441 | * "=value" and consistent with CGI.pm we _ignore_ this. | |
1442 | */ | |
a1515161 | 1443 | else if (query == eq) { |
ca0defb9 | 1444 | goto next; |
a1515161 | 1445 | } |
ca0defb9 PB |
1446 | |
1447 | /* Otherwise it's "name=value". */ | |
1448 | else { | |
7536acb4 TH |
1449 | name = g_uri_unescape_segment(query, eq, NULL); |
1450 | value = g_uri_unescape_segment(eq + 1, end, NULL); | |
ca0defb9 PB |
1451 | } |
1452 | ||
1453 | /* Append to the parameter set. */ | |
be95adaf | 1454 | query_params_append(ps, name, value); |
ca0defb9 PB |
1455 | g_free(name); |
1456 | g_free(value); | |
1457 | ||
1458 | next: | |
1459 | query = end; | |
a1515161 | 1460 | if (*query) { |
be95adaf | 1461 | query++; /* skip '&' separator */ |
a1515161 | 1462 | } |
ca0defb9 PB |
1463 | } |
1464 | ||
1465 | return ps; | |
1466 | } |