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89045ec6 MT |
1 | /*############################################################################# |
2 | # # | |
3 | # Pakfire - The IPFire package management system # | |
4 | # Copyright (C) 2019 Pakfire development team # | |
5 | # # | |
6 | # This program is free software: you can redistribute it and/or modify # | |
7 | # it under the terms of the GNU General Public License as published by # | |
8 | # the Free Software Foundation, either version 3 of the License, or # | |
9 | # (at your option) any later version. # | |
10 | # # | |
11 | # This program is distributed in the hope that it will be useful, # | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
14 | # GNU General Public License for more details. # | |
15 | # # | |
16 | # You should have received a copy of the GNU General Public License # | |
17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
18 | # # | |
19 | #############################################################################*/ | |
20 | ||
5d901566 | 21 | #include <errno.h> |
20440ba7 | 22 | #include <linux/limits.h> |
fb077c4c | 23 | #include <regex.h> |
f0d6233d | 24 | #include <stdlib.h> |
fb077c4c | 25 | #include <string.h> |
d73ca64f MT |
26 | #include <time.h> |
27 | #include <unistd.h> | |
fb077c4c | 28 | |
c178c275 MT |
29 | #define PCRE2_CODE_UNIT_WIDTH 8 |
30 | #include <pcre2.h> | |
31 | ||
d25dd74f | 32 | #include <pakfire/execute.h> |
fb077c4c | 33 | #include <pakfire/logging.h> |
f59d680a | 34 | #include <pakfire/package.h> |
89045ec6 | 35 | #include <pakfire/parser.h> |
fb077c4c MT |
36 | #include <pakfire/pakfire.h> |
37 | #include <pakfire/private.h> | |
89045ec6 MT |
38 | #include <pakfire/util.h> |
39 | ||
fb077c4c MT |
40 | struct _PakfireParser { |
41 | Pakfire pakfire; | |
d310f14c | 42 | struct _PakfireParser* parent; |
fb077c4c MT |
43 | int nrefs; |
44 | ||
2dd267d4 | 45 | int flags; |
1141075e MT |
46 | char* namespace; |
47 | ||
8868318d | 48 | struct pakfire_parser_declaration** declarations; |
6d206cc9 | 49 | size_t num_declarations; |
c178c275 MT |
50 | |
51 | // Regular expressions | |
d25dd74f | 52 | pcre2_code* regex_command; |
c178c275 | 53 | pcre2_code* regex_variable; |
fb077c4c MT |
54 | }; |
55 | ||
bf7acff3 MT |
56 | static int pakfire_parser_compile_regex(PakfireParser parser, pcre2_code** regex, |
57 | const char* pattern) { | |
c178c275 MT |
58 | int pcre2_errno; |
59 | size_t pcre2_offset; | |
60 | PCRE2_UCHAR errmsg[256]; | |
61 | ||
bf7acff3 MT |
62 | // Compile the regular expression |
63 | *regex = pcre2_compile((PCRE2_SPTR)pattern, PCRE2_ZERO_TERMINATED, 0, | |
64 | &pcre2_errno, &pcre2_offset, NULL); | |
d25dd74f | 65 | |
bf7acff3 MT |
66 | if (!*regex) { |
67 | pcre2_get_error_message(pcre2_errno, errmsg, sizeof(errmsg)); | |
68 | ERROR(parser->pakfire, "PCRE2 compilation failed for '%s' at offset %zu: %s\n", | |
69 | pattern, pcre2_offset, errmsg); | |
70 | return 1; | |
71 | } | |
d25dd74f | 72 | |
bf7acff3 MT |
73 | // Enable JIT |
74 | pcre2_errno = pcre2_jit_compile(*regex, PCRE2_JIT_COMPLETE); | |
75 | if (pcre2_errno) { | |
76 | pcre2_get_error_message(pcre2_errno, errmsg, sizeof(errmsg)); | |
77 | ERROR(parser->pakfire, "Enabling JIT on '%s' failed: %s\n", pattern, errmsg); | |
78 | return 1; | |
d25dd74f MT |
79 | } |
80 | ||
bf7acff3 MT |
81 | return 0; |
82 | } | |
c178c275 | 83 | |
bf7acff3 MT |
84 | static int pakfire_parser_compile_regexes(PakfireParser parser) { |
85 | int r; | |
c178c275 | 86 | |
bf7acff3 MT |
87 | // Commands |
88 | if (!parser->regex_command && parser->flags & PAKFIRE_PARSER_FLAGS_EXPAND_COMMANDS) { | |
89 | r = pakfire_parser_compile_regex(parser, | |
90 | &parser->regex_command, "%\\((.*?)\\)"); | |
91 | if (r) | |
92 | return r; | |
93 | } | |
a41868f9 | 94 | |
bf7acff3 MT |
95 | // Variables |
96 | if (!parser->regex_variable) { | |
97 | r = pakfire_parser_compile_regex(parser, | |
98 | &parser->regex_variable, "%\\{([A-Za-z0-9_\\-]+)\\}"); | |
99 | if (r) | |
100 | return r; | |
c178c275 MT |
101 | } |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
2dd267d4 MT |
106 | PAKFIRE_EXPORT PakfireParser pakfire_parser_create(Pakfire pakfire, |
107 | PakfireParser parent, const char* namespace, int flags) { | |
90312f5c | 108 | PakfireParser parser = calloc(1, sizeof(*parser)); |
fb077c4c MT |
109 | if (parser) { |
110 | parser->pakfire = pakfire_ref(pakfire); | |
c0f1c1f2 | 111 | parser->nrefs = 1; |
fb077c4c | 112 | |
d310f14c MT |
113 | // Store a reference to the parent parser if we have one |
114 | if (parent) | |
115 | parser->parent = pakfire_parser_ref(parent); | |
116 | ||
2dd267d4 MT |
117 | // Store flags |
118 | parser->flags = flags; | |
119 | ||
1141075e | 120 | // Make namespace |
713da225 | 121 | pakfire_parser_set_namespace(parser, namespace); |
1141075e | 122 | |
09c232ab MT |
123 | DEBUG(pakfire, "Allocated new parser at %p (%s, %p)\n", |
124 | parser, parser->namespace, parser->parent); | |
fb077c4c MT |
125 | } |
126 | ||
127 | return parser; | |
128 | } | |
129 | ||
fb08a3af | 130 | PAKFIRE_EXPORT PakfireParser pakfire_parser_create_child(PakfireParser parser, const char* namespace) { |
2dd267d4 | 131 | return pakfire_parser_create(parser->pakfire, parser, namespace, parser->flags); |
fb08a3af MT |
132 | } |
133 | ||
d310f14c MT |
134 | PAKFIRE_EXPORT PakfireParser pakfire_parser_ref(PakfireParser parser) { |
135 | ++parser->nrefs; | |
136 | ||
137 | return parser; | |
138 | } | |
139 | ||
fb077c4c MT |
140 | Pakfire pakfire_parser_get_pakfire(PakfireParser parser) { |
141 | return pakfire_ref(parser->pakfire); | |
142 | } | |
143 | ||
6d206cc9 | 144 | static void pakfire_parser_free_declarations(PakfireParser parser) { |
8868318d MT |
145 | if (!parser->declarations) |
146 | return; | |
147 | ||
6d206cc9 MT |
148 | for (unsigned int i = 0; i < parser->num_declarations; i++) { |
149 | struct pakfire_parser_declaration* d = parser->declarations[i]; | |
f2aa4592 | 150 | |
f2aa4592 | 151 | // Free everything |
f2aa4592 | 152 | if (d->value) |
f0d6233d MT |
153 | free(d->value); |
154 | free(d); | |
fb077c4c | 155 | } |
8868318d MT |
156 | |
157 | free(parser->declarations); | |
fb077c4c MT |
158 | } |
159 | ||
160 | static void pakfire_parser_free(PakfireParser parser) { | |
161 | DEBUG(parser->pakfire, "Releasing parser at %p\n", parser); | |
162 | ||
c178c275 MT |
163 | // Release regular expressions |
164 | if (parser->regex_variable) | |
165 | pcre2_code_free(parser->regex_variable); | |
166 | ||
6d206cc9 | 167 | pakfire_parser_free_declarations(parser); |
7fb3defa | 168 | |
6d206cc9 | 169 | if (parser->namespace) |
f0d6233d | 170 | free(parser->namespace); |
fb077c4c | 171 | |
7fb3defa MT |
172 | if (parser->parent) |
173 | pakfire_parser_unref(parser->parent); | |
174 | ||
fb077c4c | 175 | pakfire_unref(parser->pakfire); |
f0d6233d | 176 | free(parser); |
fb077c4c MT |
177 | } |
178 | ||
179 | PAKFIRE_EXPORT PakfireParser pakfire_parser_unref(PakfireParser parser) { | |
fb077c4c MT |
180 | if (--parser->nrefs > 0) |
181 | return parser; | |
182 | ||
183 | pakfire_parser_free(parser); | |
184 | return NULL; | |
185 | } | |
186 | ||
b1b15235 MT |
187 | PAKFIRE_EXPORT PakfireParser pakfire_parser_get_parent(PakfireParser parser) { |
188 | if (parser->parent) | |
189 | return pakfire_parser_ref(parser->parent); | |
190 | ||
191 | return NULL; | |
192 | } | |
193 | ||
fb077c4c | 194 | static struct pakfire_parser_declaration* pakfire_parser_get_declaration( |
aa75cc88 | 195 | PakfireParser parser, const char* namespace, const char* name) { |
20440ba7 MT |
196 | if (!name) { |
197 | errno = EINVAL; | |
198 | return NULL; | |
199 | } | |
200 | ||
201 | if (!namespace) | |
202 | namespace = ""; | |
fb077c4c | 203 | |
20440ba7 | 204 | struct pakfire_parser_declaration* d; |
fb077c4c MT |
205 | for (unsigned i = 0; i < parser->num_declarations; i++) { |
206 | d = parser->declarations[i]; | |
207 | if (!d) | |
208 | break; | |
209 | ||
20440ba7 MT |
210 | // Return if namespace and name match |
211 | if ((strcmp(d->namespace, namespace) == 0) && (strcmp(d->name, name) == 0)) | |
fb077c4c MT |
212 | return d; |
213 | } | |
214 | ||
215 | return NULL; | |
216 | } | |
217 | ||
aa75cc88 MT |
218 | PAKFIRE_EXPORT int pakfire_parser_set(PakfireParser parser, |
219 | const char* namespace, const char* name, const char* value) { | |
5d901566 MT |
220 | if (!name) |
221 | return -EINVAL; | |
222 | ||
20440ba7 MT |
223 | if (!namespace) |
224 | namespace = ""; | |
225 | ||
5e5f2d2b | 226 | // Handle when name already exists |
aa75cc88 | 227 | struct pakfire_parser_declaration* d = pakfire_parser_get_declaration(parser, namespace, name); |
5e5f2d2b MT |
228 | if (d) { |
229 | // Replace value | |
230 | if (d->value) | |
f0d6233d | 231 | free(d->value); |
5d901566 MT |
232 | |
233 | if (value) | |
234 | d->value = strdup(value); | |
713da225 MT |
235 | else |
236 | d->value = NULL; | |
5e5f2d2b | 237 | |
aa75cc88 MT |
238 | DEBUG(parser->pakfire, "%p: Updated declaration: %s.%s = %s\n", |
239 | parser, d->namespace, d->name, d->value); | |
5e5f2d2b MT |
240 | |
241 | // All done | |
242 | return 0; | |
243 | } | |
244 | ||
fb077c4c | 245 | // Allocate a new declaration |
90312f5c | 246 | d = calloc(1, sizeof(*d)); |
fb077c4c MT |
247 | if (!d) |
248 | return -1; | |
249 | ||
20440ba7 MT |
250 | // Store namespace |
251 | pakfire_string_set(d->namespace, namespace); | |
aa75cc88 | 252 | |
fb077c4c | 253 | // Import name & value |
20440ba7 | 254 | pakfire_string_set(d->name, name); |
5d901566 MT |
255 | if (value) |
256 | d->value = strdup(value); | |
fb077c4c | 257 | |
aa75cc88 MT |
258 | DEBUG(parser->pakfire, "%p: New declaration: %s.%s = %s\n", |
259 | parser, d->namespace, d->name, d->value); | |
fb077c4c MT |
260 | |
261 | // Assign new declaration to array | |
8868318d MT |
262 | parser->declarations = reallocarray(parser->declarations, |
263 | sizeof(*parser->declarations), parser->num_declarations + 1); | |
264 | parser->declarations[parser->num_declarations++] = d; | |
fb077c4c MT |
265 | |
266 | return 0; | |
267 | } | |
268 | ||
79fd37b5 MT |
269 | int pakfire_parser_apply_declaration(PakfireParser parser, |
270 | struct pakfire_parser_declaration* declaration) { | |
ec0f0419 | 271 | if (declaration->flags & PAKFIRE_PARSER_DECLARATION_APPEND) |
aa75cc88 | 272 | return pakfire_parser_append(parser, declaration->namespace, declaration->name, declaration->value); |
ec0f0419 | 273 | |
aa75cc88 | 274 | return pakfire_parser_set(parser, declaration->namespace, declaration->name, declaration->value); |
79fd37b5 MT |
275 | } |
276 | ||
aa75cc88 MT |
277 | static const char* pakfire_parser_get_raw(PakfireParser parser, const char* namespace, const char* name) { |
278 | struct pakfire_parser_declaration* d = pakfire_parser_get_declaration(parser, namespace, name); | |
fb077c4c | 279 | |
67738482 MT |
280 | // Return a match when it actually contains a string |
281 | if (d) { | |
282 | if (d->value && *d->value) | |
283 | return d->value; | |
284 | ||
285 | return NULL; | |
286 | } | |
fb077c4c | 287 | |
f16c81ca MT |
288 | // Search in parent parser if available |
289 | if (parser->parent) | |
aa75cc88 | 290 | return pakfire_parser_get_raw(parser->parent, namespace, name); |
f16c81ca MT |
291 | |
292 | return NULL; | |
293 | } | |
294 | ||
295 | PAKFIRE_EXPORT int pakfire_parser_append(PakfireParser parser, | |
aa75cc88 | 296 | const char* namespace, const char* name, const char* value) { |
fb077c4c MT |
297 | char* buffer = NULL; |
298 | ||
f16c81ca | 299 | // Fetch the value of the current declaration |
aa75cc88 | 300 | const char* old_value = pakfire_parser_get_raw(parser, namespace, name); |
f16c81ca MT |
301 | |
302 | // Set the new value when there is no old one | |
303 | if (!old_value) | |
aa75cc88 | 304 | return pakfire_parser_set(parser, namespace, name, value); |
f16c81ca | 305 | |
fb077c4c | 306 | // Concat value |
f16c81ca | 307 | int r = asprintf(&buffer, "%s %s", old_value, value); |
fb077c4c MT |
308 | if (r < 0) |
309 | return r; | |
310 | ||
f16c81ca | 311 | // Set the new value |
aa75cc88 | 312 | r = pakfire_parser_set(parser, namespace, name, buffer); |
f0d6233d | 313 | free(buffer); |
fb077c4c | 314 | |
f16c81ca | 315 | return r; |
fb077c4c MT |
316 | } |
317 | ||
aa75cc88 MT |
318 | static void pakfire_parser_strip_namespace(char** s) { |
319 | char* pos = strrchr(*s, '.'); | |
fb077c4c | 320 | |
995654c4 | 321 | if (pos) |
aa75cc88 | 322 | *s[pos - *s] = '\0'; |
995654c4 | 323 | else |
20440ba7 | 324 | *s[0] = '\0'; |
995654c4 MT |
325 | } |
326 | ||
327 | static struct pakfire_parser_declaration* pakfire_parser_find_declaration( | |
aa75cc88 | 328 | PakfireParser parser, const char* namespace, const char* name) { |
20440ba7 | 329 | char* n = ""; |
5d901566 | 330 | |
aa75cc88 MT |
331 | // Create a working copy of the namespace variable |
332 | if (namespace) | |
333 | n = strdupa(namespace); | |
fb077c4c MT |
334 | |
335 | struct pakfire_parser_declaration* d = NULL; | |
fb077c4c | 336 | while (1) { |
aa75cc88 | 337 | DEBUG(parser->pakfire, "Looking up %s.%s in parser %p\n", n, name, parser); |
fb077c4c MT |
338 | |
339 | // Lookup declaration | |
aa75cc88 | 340 | d = pakfire_parser_get_declaration(parser, n, name); |
fb077c4c MT |
341 | |
342 | // End if we have found a match | |
343 | if (d) | |
344 | break; | |
345 | ||
6280055f | 346 | // End if namespace is empty |
20440ba7 | 347 | if (!n || !*n) |
6280055f MT |
348 | break; |
349 | ||
fb077c4c MT |
350 | /* |
351 | If we did not find a match, we will remove one level of the | |
352 | namespace and try again... | |
353 | */ | |
aa75cc88 | 354 | pakfire_parser_strip_namespace(&n); |
fb077c4c MT |
355 | } |
356 | ||
1a7200b5 | 357 | if (!d && parser->parent) |
aa75cc88 | 358 | d = pakfire_parser_find_declaration(parser->parent, namespace, name); |
fb077c4c | 359 | |
1a7200b5 | 360 | return d; |
d310f14c MT |
361 | } |
362 | ||
0a1b68b3 | 363 | static int pakfire_parser_command_logger(Pakfire pakfire, void* data, |
d3bc0da2 | 364 | int priority, const char* line, size_t length) { |
0a1b68b3 MT |
365 | char** output = (char**)data; |
366 | ||
367 | // Append output | |
368 | asprintf(output, "%s%s", (output && *output) ? *output : "", line); | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
d25dd74f MT |
373 | static int pakfire_parser_expand_commands(PakfireParser parser, char** buffer) { |
374 | int r = 0; | |
375 | PCRE2_UCHAR* command = NULL; | |
376 | PCRE2_SIZE command_length; | |
377 | PCRE2_UCHAR* pattern = NULL; | |
378 | PCRE2_SIZE pattern_length; | |
379 | ||
380 | DEBUG(parser->pakfire, "Searching for commands in:\n%s\n", *buffer); | |
381 | ||
382 | // Allocate memory for results | |
383 | pcre2_match_data* match = pcre2_match_data_create_from_pattern( | |
384 | parser->regex_command, NULL); | |
385 | ||
386 | // Arguments passed to pakfire_execute | |
387 | const char* argv[4] = { | |
388 | "/bin/sh", "-c", NULL /* will be replaced by command later */, NULL, | |
389 | }; | |
390 | ||
391 | while (1) { | |
392 | // Perform matching | |
393 | int r = pcre2_jit_match(parser->regex_command, | |
394 | (PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL); | |
395 | ||
396 | // End loop when we have expanded all variables | |
397 | if (r == PCRE2_ERROR_NOMATCH) | |
398 | break; | |
399 | ||
400 | // Extract the command | |
401 | r = pcre2_substring_get_bynumber(match, 1, &command, &command_length); | |
402 | if (r) | |
403 | goto ERROR; | |
404 | ||
405 | DEBUG(parser->pakfire, "Expanding command: %s\n", command); | |
406 | ||
407 | // Update argv | |
408 | argv[2] = (const char*)command; | |
409 | ||
410 | // The output of the command | |
0a1b68b3 | 411 | char* output = NULL; |
d25dd74f MT |
412 | |
413 | // Execute the command inside the Pakfire environment | |
0a1b68b3 MT |
414 | r = pakfire_execute(parser->pakfire, argv, NULL, 0, |
415 | pakfire_parser_command_logger, &output); | |
d25dd74f MT |
416 | if (r) { |
417 | // Just log this and continue | |
418 | DEBUG(parser->pakfire, "Command '%s' failed with return code %d\n", command, r); | |
419 | } | |
420 | ||
0a1b68b3 MT |
421 | // Strip newline from output |
422 | if (output) | |
423 | pakfire_remove_trailing_newline(output); | |
424 | ||
d25dd74f MT |
425 | // Find the entire matched pattern |
426 | r = pcre2_substring_get_bynumber(match, 0, &pattern, &pattern_length); | |
0a1b68b3 MT |
427 | if (r) { |
428 | if (output) | |
429 | free(output); | |
430 | ||
d25dd74f | 431 | goto ERROR; |
0a1b68b3 | 432 | } |
d25dd74f MT |
433 | |
434 | // Replace all occurrences | |
435 | char* tmp = pakfire_string_replace(*buffer, (const char*)pattern, output); | |
0a1b68b3 MT |
436 | if (!tmp) { |
437 | if (output) | |
438 | free(output); | |
439 | ||
d25dd74f | 440 | goto ERROR; |
0a1b68b3 | 441 | } |
d25dd74f MT |
442 | |
443 | // Replace buffer | |
444 | free(*buffer); | |
445 | *buffer = tmp; | |
446 | ||
447 | // Free resources | |
448 | pcre2_substring_free(command); | |
449 | command = NULL; | |
450 | ||
451 | pcre2_substring_free(pattern); | |
452 | pattern = NULL; | |
0a1b68b3 MT |
453 | |
454 | if (output) | |
455 | free(output); | |
d25dd74f MT |
456 | } |
457 | ||
458 | ERROR: | |
459 | pcre2_match_data_free(match); | |
460 | ||
461 | if (command) | |
462 | pcre2_substring_free(command); | |
463 | if (pattern) | |
464 | pcre2_substring_free(pattern); | |
465 | ||
466 | return r; | |
467 | } | |
468 | ||
6accaf43 MT |
469 | static int pakfire_parser_expand_variables(PakfireParser parser, |
470 | const char* namespace, char** buffer) { | |
d25dd74f | 471 | int r = 0; |
c178c275 MT |
472 | PCRE2_UCHAR* variable = NULL; |
473 | PCRE2_SIZE variable_length; | |
474 | PCRE2_UCHAR* pattern = NULL; | |
475 | PCRE2_SIZE pattern_length; | |
476 | ||
c178c275 | 477 | // Allocate memory for results |
d25dd74f MT |
478 | pcre2_match_data* match = pcre2_match_data_create_from_pattern( |
479 | parser->regex_variable, NULL); | |
fb077c4c MT |
480 | |
481 | // Search for any variables | |
482 | while (1) { | |
483 | // Perform matching | |
a41868f9 MT |
484 | int r = pcre2_jit_match(parser->regex_variable, |
485 | (PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL); | |
fb077c4c MT |
486 | |
487 | // End loop when we have expanded all variables | |
c178c275 | 488 | if (r == PCRE2_ERROR_NOMATCH) { |
6accaf43 | 489 | DEBUG(parser->pakfire, "No (more) matches found in: %s\n", *buffer); |
fb077c4c MT |
490 | break; |
491 | } | |
492 | ||
38fa3305 | 493 | // Find the variable name |
c178c275 MT |
494 | r = pcre2_substring_get_bynumber(match, 1, &variable, &variable_length); |
495 | if (r) | |
38fa3305 | 496 | goto ERROR; |
fb077c4c MT |
497 | |
498 | DEBUG(parser->pakfire, "Expanding variable: %s\n", variable); | |
499 | ||
500 | // Search for a declaration of this variable | |
38fa3305 | 501 | struct pakfire_parser_declaration* d = |
c178c275 | 502 | pakfire_parser_find_declaration(parser, namespace, (const char*)variable); |
fb077c4c | 503 | |
38fa3305 MT |
504 | // What is its value? |
505 | const char* repl = NULL; | |
506 | if (d && d->value) { | |
507 | DEBUG(parser->pakfire, "Replacing %%{%s} with %s.%s = '%s'\n", variable, | |
508 | d->namespace, d->name, d->value); | |
d310f14c | 509 | |
38fa3305 | 510 | repl = d->value; |
d310f14c | 511 | } else { |
38fa3305 | 512 | DEBUG(parser->pakfire, "Replacing %%{%s} with an empty string\n", variable); |
fb077c4c | 513 | |
38fa3305 MT |
514 | repl = ""; |
515 | } | |
fb077c4c | 516 | |
38fa3305 | 517 | // Find the entire matched pattern |
c178c275 MT |
518 | r = pcre2_substring_get_bynumber(match, 0, &pattern, &pattern_length); |
519 | if (r) | |
38fa3305 | 520 | goto ERROR; |
fb077c4c | 521 | |
38fa3305 | 522 | // Replace all occurrences |
6accaf43 | 523 | char* tmp = pakfire_string_replace(*buffer, (const char*)pattern, repl); |
38fa3305 MT |
524 | if (!tmp) |
525 | goto ERROR; | |
fb077c4c | 526 | |
38fa3305 | 527 | // Replace buffer |
6accaf43 MT |
528 | free(*buffer); |
529 | *buffer = tmp; | |
fb077c4c | 530 | |
38fa3305 | 531 | // Free resources |
c178c275 | 532 | pcre2_substring_free(variable); |
6accaf43 | 533 | variable = NULL; |
fb077c4c | 534 | |
6accaf43 MT |
535 | pcre2_substring_free(pattern); |
536 | pattern = NULL; | |
38fa3305 | 537 | } |
fb077c4c | 538 | |
38fa3305 | 539 | ERROR: |
c178c275 | 540 | pcre2_match_data_free(match); |
fb077c4c | 541 | |
38fa3305 | 542 | if (variable) |
c178c275 | 543 | pcre2_substring_free(variable); |
38fa3305 | 544 | if (pattern) |
c178c275 | 545 | pcre2_substring_free(pattern); |
38fa3305 | 546 | |
6accaf43 MT |
547 | return r; |
548 | } | |
549 | ||
550 | PAKFIRE_EXPORT char* pakfire_parser_expand(PakfireParser parser, | |
551 | const char* namespace, const char* value) { | |
552 | // Return NULL when the value is NULL | |
553 | if (!value) | |
554 | return NULL; | |
555 | ||
556 | // Create a working copy of the string we are expanding | |
557 | char* buffer = strdup(value); | |
558 | ||
559 | // Fast path to check if there are any variables in here whatsoever | |
560 | char* pos = strchr(value, '%'); | |
561 | if (!pos) | |
562 | return buffer; | |
563 | ||
d25dd74f | 564 | // Compile all regular expressions |
bf7acff3 | 565 | int r = pakfire_parser_compile_regexes(parser); |
d25dd74f MT |
566 | if (r) { |
567 | free(buffer); | |
568 | return NULL; | |
569 | } | |
570 | ||
6accaf43 | 571 | // Expand all variables |
d25dd74f | 572 | r = pakfire_parser_expand_variables(parser, namespace, &buffer); |
6accaf43 MT |
573 | if (r) { |
574 | if (buffer) | |
575 | free(buffer); | |
576 | ||
577 | return NULL; | |
578 | } | |
579 | ||
d25dd74f MT |
580 | // Expand all commands |
581 | if (parser->flags & PAKFIRE_PARSER_FLAGS_EXPAND_COMMANDS) { | |
582 | r = pakfire_parser_expand_commands(parser, &buffer); | |
583 | if (r) { | |
584 | if (buffer) | |
585 | free(buffer); | |
586 | ||
587 | return NULL; | |
588 | } | |
589 | } | |
590 | ||
fb077c4c MT |
591 | return buffer; |
592 | } | |
593 | ||
aa75cc88 MT |
594 | PAKFIRE_EXPORT char* pakfire_parser_get(PakfireParser parser, const char* namespace, const char* name) { |
595 | const char* value = pakfire_parser_get_raw(parser, namespace, name); | |
1a7200b5 | 596 | |
fb077c4c | 597 | // Return NULL when nothing was found |
1a7200b5 | 598 | if (!value) |
fb077c4c MT |
599 | return NULL; |
600 | ||
601 | // Otherwise return the expanded value | |
aa75cc88 | 602 | return pakfire_parser_expand(parser, namespace, value); |
fb077c4c MT |
603 | } |
604 | ||
e10e1ad1 MT |
605 | PAKFIRE_EXPORT char** pakfire_parser_get_split(PakfireParser parser, |
606 | const char* namespace, const char* name, char delim) { | |
607 | char* value = pakfire_parser_get(parser, namespace, name); | |
608 | if (!value) | |
609 | return NULL; | |
610 | ||
611 | // Split the string | |
612 | char** list = pakfire_split_string(value, delim); | |
613 | free(value); | |
614 | ||
615 | return list; | |
616 | } | |
617 | ||
122e45f5 | 618 | PAKFIRE_EXPORT int pakfire_parser_merge(PakfireParser parser1, PakfireParser parser2) { |
d310f14c | 619 | DEBUG(parser1->pakfire, "Merging parsers %p and %p\n", parser1, parser2); |
20440ba7 | 620 | char namespace[NAME_MAX*2+1]; |
d310f14c | 621 | |
c7577606 MT |
622 | if (!parser2) { |
623 | errno = EINVAL; | |
624 | return 1; | |
625 | } | |
626 | ||
1a7200b5 MT |
627 | // Do not try to merge a parser with itself |
628 | if (parser1 == parser2) | |
122e45f5 | 629 | return EINVAL; |
1a7200b5 | 630 | |
fcbbe16e MT |
631 | for (unsigned int i = 0; i < parser2->num_declarations; i++) { |
632 | struct pakfire_parser_declaration* d = parser2->declarations[i]; | |
633 | if (!d) | |
634 | break; | |
d310f14c | 635 | |
20440ba7 MT |
636 | if (parser2->namespace && *d->namespace) |
637 | pakfire_string_format(namespace, "%s.%s", parser2->namespace, d->namespace); | |
aa75cc88 | 638 | else if (parser2->namespace) |
20440ba7 MT |
639 | pakfire_string_set(namespace, parser2->namespace); |
640 | else if (*d->namespace) | |
641 | pakfire_string_set(namespace, d->namespace); | |
aa75cc88 | 642 | else |
20440ba7 | 643 | pakfire_string_set(namespace, ""); |
713da225 | 644 | |
aa75cc88 | 645 | int r = pakfire_parser_set(parser1, namespace, d->name, d->value); |
122e45f5 MT |
646 | if (r) |
647 | return r; | |
d310f14c MT |
648 | } |
649 | ||
122e45f5 | 650 | return 0; |
d310f14c MT |
651 | } |
652 | ||
4b7699d9 MT |
653 | PAKFIRE_EXPORT int pakfire_parser_read(PakfireParser parser, FILE* f, |
654 | struct pakfire_parser_error** error) { | |
fb077c4c MT |
655 | char* data; |
656 | size_t len; | |
657 | ||
658 | int r = pakfire_read_file_into_buffer(f, &data, &len); | |
659 | if (r) | |
660 | return r; | |
661 | ||
4b7699d9 | 662 | r = pakfire_parser_parse_data(parser, data, len, error); |
89045ec6 MT |
663 | |
664 | if (data) | |
f0d6233d | 665 | free(data); |
89045ec6 | 666 | |
fb077c4c | 667 | return r; |
89045ec6 | 668 | } |
dac3330d | 669 | |
4b7699d9 MT |
670 | PAKFIRE_EXPORT int pakfire_parser_read_file(PakfireParser parser, const char* path, |
671 | struct pakfire_parser_error** error) { | |
774aeac4 MT |
672 | FILE* f = fopen(path, "r"); |
673 | if (!f) | |
674 | return 1; | |
675 | ||
4b7699d9 | 676 | int r = pakfire_parser_read(parser, f, error); |
774aeac4 MT |
677 | fclose(f); |
678 | ||
679 | return r; | |
680 | } | |
681 | ||
4b7699d9 MT |
682 | PAKFIRE_EXPORT int pakfire_parser_parse(PakfireParser parser, |
683 | const char* data, size_t size, struct pakfire_parser_error** error) { | |
684 | return pakfire_parser_parse_data(parser, data, size, error); | |
40f17018 MT |
685 | } |
686 | ||
dac3330d | 687 | PAKFIRE_EXPORT char* pakfire_parser_dump(PakfireParser parser) { |
20440ba7 | 688 | char buffer[NAME_MAX*2 + 1]; |
dac3330d MT |
689 | char* s = NULL; |
690 | ||
691 | for (unsigned int i = 0; i < parser->num_declarations; i++) { | |
692 | struct pakfire_parser_declaration* d = parser->declarations[i]; | |
693 | ||
694 | if (d) { | |
20440ba7 MT |
695 | if (*d->namespace) |
696 | pakfire_string_format(buffer, "%s.%s", d->namespace, d->name); | |
dac3330d | 697 | else |
20440ba7 | 698 | pakfire_string_set(buffer, d->name); |
aa75cc88 MT |
699 | |
700 | asprintf(&s, "%s%-24s = %s\n", (s) ? s : "", buffer, d->value); | |
dac3330d MT |
701 | } |
702 | } | |
703 | ||
704 | return s; | |
705 | } | |
40f17018 MT |
706 | |
707 | PAKFIRE_EXPORT const char* pakfire_parser_get_namespace(PakfireParser parser) { | |
708 | return parser->namespace; | |
709 | } | |
713da225 MT |
710 | |
711 | PAKFIRE_EXPORT int pakfire_parser_set_namespace(PakfireParser parser, const char* namespace) { | |
712 | if (parser->namespace) | |
713 | free(parser->namespace); | |
714 | ||
715 | if (namespace) | |
716 | parser->namespace = strdup(namespace); | |
717 | else | |
718 | parser->namespace = NULL; | |
719 | ||
720 | DEBUG(parser->pakfire, "%p: Set namespace to: %s\n", parser, parser->namespace); | |
721 | ||
722 | return 0; | |
723 | } | |
4b7699d9 | 724 | |
f59d680a | 725 | PAKFIRE_EXPORT int pakfire_parser_create_package(PakfireParser parser, |
08bcb46a | 726 | PakfirePackage* pkg, PakfireRepo repo, const char* namespace, const char* default_arch) { |
f59d680a MT |
727 | int r = 1; |
728 | ||
729 | char* name = NULL; | |
730 | char* epoch = NULL; | |
731 | char* version = NULL; | |
732 | char* release = NULL; | |
733 | char* arch = NULL; | |
734 | char* evr = NULL; | |
735 | ||
736 | // Fetch name | |
737 | name = pakfire_parser_get(parser, namespace, "name"); | |
f3b3ed8e | 738 | if (!name || !*name) { |
f59d680a MT |
739 | ERROR(parser->pakfire, "Name is empty\n"); |
740 | goto CLEANUP; | |
741 | } | |
742 | ||
743 | // Fetch epoch | |
744 | epoch = pakfire_parser_get(parser, namespace, "epoch"); | |
f3b3ed8e | 745 | if (!epoch || !*epoch) { |
f59d680a MT |
746 | ERROR(parser->pakfire, "Epoch is empty\n"); |
747 | goto CLEANUP; | |
748 | } | |
749 | ||
750 | // Fetch version | |
751 | version = pakfire_parser_get(parser, namespace, "version"); | |
f3b3ed8e | 752 | if (!version || !*version) { |
f59d680a MT |
753 | ERROR(parser->pakfire, "Version is empty\n"); |
754 | goto CLEANUP; | |
755 | } | |
756 | ||
757 | // Fetch release | |
758 | release = pakfire_parser_get(parser, namespace, "release"); | |
f3b3ed8e | 759 | if (!release || !*release) { |
f59d680a MT |
760 | ERROR(parser->pakfire, "Release is empty\n"); |
761 | goto CLEANUP; | |
762 | } | |
763 | ||
764 | // Fetch arch | |
765 | arch = pakfire_parser_get(parser, namespace, "arch"); | |
f3b3ed8e | 766 | if (!arch || !*arch) { |
08bcb46a MT |
767 | if (default_arch) { |
768 | arch = strdup(default_arch); | |
769 | if (!arch) | |
770 | goto CLEANUP; | |
771 | } else { | |
772 | ERROR(parser->pakfire, "Arch is empty\n"); | |
773 | goto CLEANUP; | |
774 | } | |
f59d680a MT |
775 | } |
776 | ||
777 | // Compile EVR | |
778 | evr = pakfire_package_join_evr(epoch, version, release); | |
779 | if (!evr) | |
780 | goto CLEANUP; | |
781 | ||
782 | // Create a new package object | |
783 | *pkg = pakfire_package_create(parser->pakfire, repo, name, evr, arch); | |
784 | if (!*pkg) { | |
785 | ERROR(parser->pakfire, "Could not create package\n"); | |
786 | goto CLEANUP; | |
787 | } | |
788 | ||
5848e7cb MT |
789 | // Is this a source package? |
790 | int is_source = pakfire_package_is_source(*pkg); | |
791 | ||
df552c32 MT |
792 | // Assign a new UUID to this package |
793 | char* uuid = pakfire_generate_uuid(); | |
794 | if (!uuid) { | |
795 | ERROR(parser->pakfire, "Generating a UUID failed: %s\n", strerror(errno)); | |
796 | goto CLEANUP; | |
797 | } | |
798 | ||
799 | pakfire_package_set_uuid(*pkg, uuid); | |
800 | free(uuid); | |
801 | ||
d73ca64f MT |
802 | // Set build host |
803 | char hostname[HOST_NAME_MAX + 1]; | |
804 | r = gethostname(hostname, HOST_NAME_MAX + 1); | |
805 | if (r) { | |
806 | ERROR(parser->pakfire, "gethostname() failed: %s\n", strerror(errno)); | |
807 | goto CLEANUP; | |
808 | } | |
809 | ||
810 | pakfire_package_set_build_host(*pkg, hostname); | |
811 | ||
812 | // Set build time | |
813 | time_t now = time(NULL); | |
814 | ||
815 | pakfire_package_set_build_time(*pkg, now); | |
816 | ||
f00837c0 MT |
817 | // Assign more attributes |
818 | const struct attribute { | |
819 | const char* name; | |
820 | void(*func)(PakfirePackage pkg, const char* value); | |
821 | } attributes[] = { | |
822 | { "summary", pakfire_package_set_summary, }, | |
823 | { "description", pakfire_package_set_description, }, | |
824 | { "license", pakfire_package_set_license, }, | |
825 | { "url", pakfire_package_set_url, }, | |
826 | { "groups", pakfire_package_set_groups, }, | |
827 | { "vendor", pakfire_package_set_vendor, }, | |
828 | { "maintainer", pakfire_package_set_maintainer, }, | |
829 | { NULL }, | |
830 | }; | |
831 | ||
832 | for (const struct attribute* a = attributes; a->name; a++) { | |
833 | char* value = pakfire_parser_get(parser, namespace, a->name); | |
834 | if (!value) | |
835 | continue; | |
836 | ||
837 | a->func(*pkg, value); | |
838 | free(value); | |
839 | } | |
840 | ||
b81a64ec | 841 | // Fetch build dependencies |
5848e7cb | 842 | if (is_source) { |
5848e7cb | 843 | char* requires = pakfire_parser_get(parser, "build", "requires"); |
b81a64ec MT |
844 | if (requires && *requires) |
845 | pakfire_parse_deps(parser->pakfire, *pkg, | |
846 | pakfire_package_add_requires, requires); | |
5848e7cb MT |
847 | } |
848 | ||
f59d680a MT |
849 | // All okay |
850 | r = 0; | |
851 | ||
852 | CLEANUP: | |
853 | if (name) | |
854 | free(name); | |
855 | if (epoch) | |
856 | free(epoch); | |
857 | if (version) | |
858 | free(version); | |
859 | if (release) | |
860 | free(release); | |
861 | if (arch) | |
862 | free(arch); | |
863 | ||
864 | return r; | |
865 | } | |
866 | ||
4b7699d9 MT |
867 | // Error |
868 | ||
869 | struct pakfire_parser_error { | |
870 | PakfireParser parser; | |
871 | int nrefs; | |
872 | ||
873 | char* filename; | |
874 | int line; | |
875 | char* message; | |
876 | }; | |
877 | ||
878 | PAKFIRE_EXPORT int pakfire_parser_error_create(struct pakfire_parser_error** error, | |
879 | PakfireParser parser, const char* filename, int line, const char* message) { | |
880 | struct pakfire_parser_error* e = calloc(1, sizeof(*e)); | |
881 | if (!e) | |
882 | return ENOMEM; | |
883 | ||
884 | // Initialize reference counter | |
885 | e->nrefs = 1; | |
886 | ||
887 | e->parser = pakfire_parser_ref(parser); | |
888 | ||
889 | // Copy all input values | |
890 | if (filename) | |
891 | e->filename = strdup(filename); | |
892 | ||
893 | e->line = line; | |
894 | ||
895 | if (message) | |
896 | e->message = strdup(message); | |
897 | ||
898 | *error = e; | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
903 | PAKFIRE_EXPORT struct pakfire_parser_error* pakfire_parser_error_ref( | |
904 | struct pakfire_parser_error* error) { | |
905 | ++error->nrefs; | |
906 | ||
907 | return error; | |
908 | } | |
909 | ||
910 | static void pakfire_parser_error_free(struct pakfire_parser_error* error) { | |
911 | pakfire_parser_unref(error->parser); | |
912 | ||
913 | if (error->filename) | |
914 | free(error->filename); | |
915 | ||
916 | if (error->message) | |
917 | free(error->message); | |
918 | ||
919 | free(error); | |
920 | } | |
921 | ||
922 | PAKFIRE_EXPORT struct pakfire_parser_error* pakfire_parser_error_unref( | |
923 | struct pakfire_parser_error* error) { | |
924 | if (--error->nrefs > 0) | |
925 | return error; | |
926 | ||
927 | pakfire_parser_error_free(error); | |
928 | ||
929 | return NULL; | |
930 | } | |
931 | ||
932 | PAKFIRE_EXPORT const char* pakfire_parser_error_get_filename( | |
933 | struct pakfire_parser_error* error) { | |
934 | return error->filename; | |
935 | } | |
936 | ||
937 | PAKFIRE_EXPORT int pakfire_parser_error_get_line(struct pakfire_parser_error* error) { | |
938 | return error->line; | |
939 | } | |
940 | ||
941 | PAKFIRE_EXPORT const char* pakfire_parser_error_get_message( | |
942 | struct pakfire_parser_error* error) { | |
943 | return error->message; | |
944 | } |