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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> |
fb077c4c | 22 | #include <regex.h> |
f0d6233d | 23 | #include <stdlib.h> |
fb077c4c | 24 | #include <string.h> |
d73ca64f MT |
25 | #include <time.h> |
26 | #include <unistd.h> | |
fb077c4c | 27 | |
c178c275 MT |
28 | #define PCRE2_CODE_UNIT_WIDTH 8 |
29 | #include <pcre2.h> | |
30 | ||
d25dd74f | 31 | #include <pakfire/execute.h> |
fb077c4c | 32 | #include <pakfire/logging.h> |
f59d680a | 33 | #include <pakfire/package.h> |
89045ec6 | 34 | #include <pakfire/parser.h> |
fb077c4c MT |
35 | #include <pakfire/pakfire.h> |
36 | #include <pakfire/private.h> | |
89045ec6 MT |
37 | #include <pakfire/util.h> |
38 | ||
fb077c4c MT |
39 | struct _PakfireParser { |
40 | Pakfire pakfire; | |
d310f14c | 41 | struct _PakfireParser* parent; |
fb077c4c MT |
42 | int nrefs; |
43 | ||
2dd267d4 | 44 | int flags; |
1141075e MT |
45 | char* namespace; |
46 | ||
8868318d | 47 | struct pakfire_parser_declaration** declarations; |
6d206cc9 | 48 | size_t num_declarations; |
c178c275 MT |
49 | |
50 | // Regular expressions | |
d25dd74f | 51 | pcre2_code* regex_command; |
c178c275 | 52 | pcre2_code* regex_variable; |
fb077c4c MT |
53 | }; |
54 | ||
bf7acff3 MT |
55 | static int pakfire_parser_compile_regex(PakfireParser parser, pcre2_code** regex, |
56 | const char* pattern) { | |
c178c275 MT |
57 | int pcre2_errno; |
58 | size_t pcre2_offset; | |
59 | PCRE2_UCHAR errmsg[256]; | |
60 | ||
bf7acff3 MT |
61 | // Compile the regular expression |
62 | *regex = pcre2_compile((PCRE2_SPTR)pattern, PCRE2_ZERO_TERMINATED, 0, | |
63 | &pcre2_errno, &pcre2_offset, NULL); | |
d25dd74f | 64 | |
bf7acff3 MT |
65 | if (!*regex) { |
66 | pcre2_get_error_message(pcre2_errno, errmsg, sizeof(errmsg)); | |
67 | ERROR(parser->pakfire, "PCRE2 compilation failed for '%s' at offset %zu: %s\n", | |
68 | pattern, pcre2_offset, errmsg); | |
69 | return 1; | |
70 | } | |
d25dd74f | 71 | |
bf7acff3 MT |
72 | // Enable JIT |
73 | pcre2_errno = pcre2_jit_compile(*regex, PCRE2_JIT_COMPLETE); | |
74 | if (pcre2_errno) { | |
75 | pcre2_get_error_message(pcre2_errno, errmsg, sizeof(errmsg)); | |
76 | ERROR(parser->pakfire, "Enabling JIT on '%s' failed: %s\n", pattern, errmsg); | |
77 | return 1; | |
d25dd74f MT |
78 | } |
79 | ||
bf7acff3 MT |
80 | return 0; |
81 | } | |
c178c275 | 82 | |
bf7acff3 MT |
83 | static int pakfire_parser_compile_regexes(PakfireParser parser) { |
84 | int r; | |
c178c275 | 85 | |
bf7acff3 MT |
86 | // Commands |
87 | if (!parser->regex_command && parser->flags & PAKFIRE_PARSER_FLAGS_EXPAND_COMMANDS) { | |
88 | r = pakfire_parser_compile_regex(parser, | |
89 | &parser->regex_command, "%\\((.*?)\\)"); | |
90 | if (r) | |
91 | return r; | |
92 | } | |
a41868f9 | 93 | |
bf7acff3 MT |
94 | // Variables |
95 | if (!parser->regex_variable) { | |
96 | r = pakfire_parser_compile_regex(parser, | |
97 | &parser->regex_variable, "%\\{([A-Za-z0-9_\\-]+)\\}"); | |
98 | if (r) | |
99 | return r; | |
c178c275 MT |
100 | } |
101 | ||
102 | return 0; | |
103 | } | |
104 | ||
2dd267d4 MT |
105 | PAKFIRE_EXPORT PakfireParser pakfire_parser_create(Pakfire pakfire, |
106 | PakfireParser parent, const char* namespace, int flags) { | |
90312f5c | 107 | PakfireParser parser = calloc(1, sizeof(*parser)); |
fb077c4c MT |
108 | if (parser) { |
109 | parser->pakfire = pakfire_ref(pakfire); | |
c0f1c1f2 | 110 | parser->nrefs = 1; |
fb077c4c | 111 | |
d310f14c MT |
112 | // Store a reference to the parent parser if we have one |
113 | if (parent) | |
114 | parser->parent = pakfire_parser_ref(parent); | |
115 | ||
2dd267d4 MT |
116 | // Store flags |
117 | parser->flags = flags; | |
118 | ||
1141075e | 119 | // Make namespace |
713da225 | 120 | pakfire_parser_set_namespace(parser, namespace); |
1141075e | 121 | |
09c232ab MT |
122 | DEBUG(pakfire, "Allocated new parser at %p (%s, %p)\n", |
123 | parser, parser->namespace, parser->parent); | |
fb077c4c MT |
124 | } |
125 | ||
126 | return parser; | |
127 | } | |
128 | ||
fb08a3af | 129 | PAKFIRE_EXPORT PakfireParser pakfire_parser_create_child(PakfireParser parser, const char* namespace) { |
2dd267d4 | 130 | return pakfire_parser_create(parser->pakfire, parser, namespace, parser->flags); |
fb08a3af MT |
131 | } |
132 | ||
d310f14c MT |
133 | PAKFIRE_EXPORT PakfireParser pakfire_parser_ref(PakfireParser parser) { |
134 | ++parser->nrefs; | |
135 | ||
136 | return parser; | |
137 | } | |
138 | ||
fb077c4c MT |
139 | Pakfire pakfire_parser_get_pakfire(PakfireParser parser) { |
140 | return pakfire_ref(parser->pakfire); | |
141 | } | |
142 | ||
6d206cc9 | 143 | static void pakfire_parser_free_declarations(PakfireParser parser) { |
8868318d MT |
144 | if (!parser->declarations) |
145 | return; | |
146 | ||
6d206cc9 MT |
147 | for (unsigned int i = 0; i < parser->num_declarations; i++) { |
148 | struct pakfire_parser_declaration* d = parser->declarations[i]; | |
f2aa4592 | 149 | |
f2aa4592 | 150 | // Free everything |
aa75cc88 MT |
151 | if (d->namespace) |
152 | free(d->namespace); | |
f2aa4592 | 153 | if (d->name) |
f0d6233d | 154 | free(d->name); |
f2aa4592 | 155 | if (d->value) |
f0d6233d MT |
156 | free(d->value); |
157 | free(d); | |
fb077c4c | 158 | } |
8868318d MT |
159 | |
160 | free(parser->declarations); | |
fb077c4c MT |
161 | } |
162 | ||
163 | static void pakfire_parser_free(PakfireParser parser) { | |
164 | DEBUG(parser->pakfire, "Releasing parser at %p\n", parser); | |
165 | ||
c178c275 MT |
166 | // Release regular expressions |
167 | if (parser->regex_variable) | |
168 | pcre2_code_free(parser->regex_variable); | |
169 | ||
6d206cc9 | 170 | pakfire_parser_free_declarations(parser); |
7fb3defa | 171 | |
6d206cc9 | 172 | if (parser->namespace) |
f0d6233d | 173 | free(parser->namespace); |
fb077c4c | 174 | |
7fb3defa MT |
175 | if (parser->parent) |
176 | pakfire_parser_unref(parser->parent); | |
177 | ||
fb077c4c | 178 | pakfire_unref(parser->pakfire); |
f0d6233d | 179 | free(parser); |
fb077c4c MT |
180 | } |
181 | ||
182 | PAKFIRE_EXPORT PakfireParser pakfire_parser_unref(PakfireParser parser) { | |
183 | if (!parser) | |
184 | return NULL; | |
185 | ||
186 | if (--parser->nrefs > 0) | |
187 | return parser; | |
188 | ||
189 | pakfire_parser_free(parser); | |
190 | return NULL; | |
191 | } | |
192 | ||
b1b15235 MT |
193 | PAKFIRE_EXPORT PakfireParser pakfire_parser_get_parent(PakfireParser parser) { |
194 | if (parser->parent) | |
195 | return pakfire_parser_ref(parser->parent); | |
196 | ||
197 | return NULL; | |
198 | } | |
199 | ||
fb077c4c | 200 | static struct pakfire_parser_declaration* pakfire_parser_get_declaration( |
aa75cc88 | 201 | PakfireParser parser, const char* namespace, const char* name) { |
fb077c4c MT |
202 | struct pakfire_parser_declaration* d; |
203 | ||
204 | for (unsigned i = 0; i < parser->num_declarations; i++) { | |
205 | d = parser->declarations[i]; | |
206 | if (!d) | |
207 | break; | |
208 | ||
aa75cc88 MT |
209 | // Skip if d does not have a namespace set |
210 | if (namespace && !d->namespace) | |
211 | continue; | |
212 | ||
213 | // Skip if namespace does not match | |
214 | if (namespace && strcmp(d->namespace, namespace) != 0) | |
215 | continue; | |
216 | ||
fb077c4c MT |
217 | // Compare the name |
218 | if (strcmp(d->name, name) == 0) | |
219 | return d; | |
220 | } | |
221 | ||
222 | return NULL; | |
223 | } | |
224 | ||
aa75cc88 MT |
225 | PAKFIRE_EXPORT int pakfire_parser_set(PakfireParser parser, |
226 | const char* namespace, const char* name, const char* value) { | |
5d901566 MT |
227 | if (!name) |
228 | return -EINVAL; | |
229 | ||
5e5f2d2b | 230 | // Handle when name already exists |
aa75cc88 | 231 | struct pakfire_parser_declaration* d = pakfire_parser_get_declaration(parser, namespace, name); |
5e5f2d2b MT |
232 | if (d) { |
233 | // Replace value | |
234 | if (d->value) | |
f0d6233d | 235 | free(d->value); |
5d901566 MT |
236 | |
237 | if (value) | |
238 | d->value = strdup(value); | |
713da225 MT |
239 | else |
240 | d->value = NULL; | |
5e5f2d2b | 241 | |
aa75cc88 MT |
242 | DEBUG(parser->pakfire, "%p: Updated declaration: %s.%s = %s\n", |
243 | parser, d->namespace, d->name, d->value); | |
5e5f2d2b MT |
244 | |
245 | // All done | |
246 | return 0; | |
247 | } | |
248 | ||
fb077c4c | 249 | // Allocate a new declaration |
90312f5c | 250 | d = calloc(1, sizeof(*d)); |
fb077c4c MT |
251 | if (!d) |
252 | return -1; | |
253 | ||
aa75cc88 MT |
254 | // Copy namespace |
255 | if (namespace) | |
256 | d->namespace = strdup(namespace); | |
257 | else | |
258 | d->namespace = NULL; | |
259 | ||
fb077c4c | 260 | // Import name & value |
5d901566 MT |
261 | d->name = strdup(name); |
262 | if (value) | |
263 | d->value = strdup(value); | |
fb077c4c | 264 | |
aa75cc88 MT |
265 | DEBUG(parser->pakfire, "%p: New declaration: %s.%s = %s\n", |
266 | parser, d->namespace, d->name, d->value); | |
fb077c4c MT |
267 | |
268 | // Assign new declaration to array | |
8868318d MT |
269 | parser->declarations = reallocarray(parser->declarations, |
270 | sizeof(*parser->declarations), parser->num_declarations + 1); | |
271 | parser->declarations[parser->num_declarations++] = d; | |
fb077c4c MT |
272 | |
273 | return 0; | |
274 | } | |
275 | ||
79fd37b5 MT |
276 | int pakfire_parser_apply_declaration(PakfireParser parser, |
277 | struct pakfire_parser_declaration* declaration) { | |
ec0f0419 | 278 | if (declaration->flags & PAKFIRE_PARSER_DECLARATION_APPEND) |
aa75cc88 | 279 | return pakfire_parser_append(parser, declaration->namespace, declaration->name, declaration->value); |
ec0f0419 | 280 | |
aa75cc88 | 281 | return pakfire_parser_set(parser, declaration->namespace, declaration->name, declaration->value); |
79fd37b5 MT |
282 | } |
283 | ||
aa75cc88 MT |
284 | static const char* pakfire_parser_get_raw(PakfireParser parser, const char* namespace, const char* name) { |
285 | struct pakfire_parser_declaration* d = pakfire_parser_get_declaration(parser, namespace, name); | |
fb077c4c | 286 | |
67738482 MT |
287 | // Return a match when it actually contains a string |
288 | if (d) { | |
289 | if (d->value && *d->value) | |
290 | return d->value; | |
291 | ||
292 | return NULL; | |
293 | } | |
fb077c4c | 294 | |
f16c81ca MT |
295 | // Search in parent parser if available |
296 | if (parser->parent) | |
aa75cc88 | 297 | return pakfire_parser_get_raw(parser->parent, namespace, name); |
f16c81ca MT |
298 | |
299 | return NULL; | |
300 | } | |
301 | ||
302 | PAKFIRE_EXPORT int pakfire_parser_append(PakfireParser parser, | |
aa75cc88 | 303 | const char* namespace, const char* name, const char* value) { |
fb077c4c MT |
304 | char* buffer = NULL; |
305 | ||
f16c81ca | 306 | // Fetch the value of the current declaration |
aa75cc88 | 307 | const char* old_value = pakfire_parser_get_raw(parser, namespace, name); |
f16c81ca MT |
308 | |
309 | // Set the new value when there is no old one | |
310 | if (!old_value) | |
aa75cc88 | 311 | return pakfire_parser_set(parser, namespace, name, value); |
f16c81ca | 312 | |
fb077c4c | 313 | // Concat value |
f16c81ca | 314 | int r = asprintf(&buffer, "%s %s", old_value, value); |
fb077c4c MT |
315 | if (r < 0) |
316 | return r; | |
317 | ||
f16c81ca | 318 | // Set the new value |
aa75cc88 | 319 | r = pakfire_parser_set(parser, namespace, name, buffer); |
f0d6233d | 320 | free(buffer); |
fb077c4c | 321 | |
f16c81ca | 322 | return r; |
fb077c4c MT |
323 | } |
324 | ||
aa75cc88 MT |
325 | static void pakfire_parser_strip_namespace(char** s) { |
326 | char* pos = strrchr(*s, '.'); | |
fb077c4c | 327 | |
995654c4 | 328 | if (pos) |
aa75cc88 | 329 | *s[pos - *s] = '\0'; |
995654c4 | 330 | else |
aa75cc88 | 331 | *s = NULL; |
995654c4 MT |
332 | } |
333 | ||
334 | static struct pakfire_parser_declaration* pakfire_parser_find_declaration( | |
aa75cc88 | 335 | PakfireParser parser, const char* namespace, const char* name) { |
5d901566 MT |
336 | char* n = NULL; |
337 | ||
aa75cc88 MT |
338 | // Create a working copy of the namespace variable |
339 | if (namespace) | |
340 | n = strdupa(namespace); | |
fb077c4c MT |
341 | |
342 | struct pakfire_parser_declaration* d = NULL; | |
fb077c4c | 343 | while (1) { |
aa75cc88 | 344 | DEBUG(parser->pakfire, "Looking up %s.%s in parser %p\n", n, name, parser); |
fb077c4c MT |
345 | |
346 | // Lookup declaration | |
aa75cc88 | 347 | d = pakfire_parser_get_declaration(parser, n, name); |
fb077c4c MT |
348 | |
349 | // End if we have found a match | |
350 | if (d) | |
351 | break; | |
352 | ||
6280055f | 353 | // End if namespace is empty |
aa75cc88 | 354 | if (!n) |
6280055f MT |
355 | break; |
356 | ||
fb077c4c MT |
357 | /* |
358 | If we did not find a match, we will remove one level of the | |
359 | namespace and try again... | |
360 | */ | |
aa75cc88 | 361 | pakfire_parser_strip_namespace(&n); |
fb077c4c MT |
362 | } |
363 | ||
1a7200b5 | 364 | if (!d && parser->parent) |
aa75cc88 | 365 | d = pakfire_parser_find_declaration(parser->parent, namespace, name); |
fb077c4c | 366 | |
1a7200b5 | 367 | return d; |
d310f14c MT |
368 | } |
369 | ||
0a1b68b3 | 370 | static int pakfire_parser_command_logger(Pakfire pakfire, void* data, |
d3bc0da2 | 371 | int priority, const char* line, size_t length) { |
0a1b68b3 MT |
372 | char** output = (char**)data; |
373 | ||
374 | // Append output | |
375 | asprintf(output, "%s%s", (output && *output) ? *output : "", line); | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
d25dd74f MT |
380 | static int pakfire_parser_expand_commands(PakfireParser parser, char** buffer) { |
381 | int r = 0; | |
382 | PCRE2_UCHAR* command = NULL; | |
383 | PCRE2_SIZE command_length; | |
384 | PCRE2_UCHAR* pattern = NULL; | |
385 | PCRE2_SIZE pattern_length; | |
386 | ||
387 | DEBUG(parser->pakfire, "Searching for commands in:\n%s\n", *buffer); | |
388 | ||
389 | // Allocate memory for results | |
390 | pcre2_match_data* match = pcre2_match_data_create_from_pattern( | |
391 | parser->regex_command, NULL); | |
392 | ||
393 | // Arguments passed to pakfire_execute | |
394 | const char* argv[4] = { | |
395 | "/bin/sh", "-c", NULL /* will be replaced by command later */, NULL, | |
396 | }; | |
397 | ||
398 | while (1) { | |
399 | // Perform matching | |
400 | int r = pcre2_jit_match(parser->regex_command, | |
401 | (PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL); | |
402 | ||
403 | // End loop when we have expanded all variables | |
404 | if (r == PCRE2_ERROR_NOMATCH) | |
405 | break; | |
406 | ||
407 | // Extract the command | |
408 | r = pcre2_substring_get_bynumber(match, 1, &command, &command_length); | |
409 | if (r) | |
410 | goto ERROR; | |
411 | ||
412 | DEBUG(parser->pakfire, "Expanding command: %s\n", command); | |
413 | ||
414 | // Update argv | |
415 | argv[2] = (const char*)command; | |
416 | ||
417 | // The output of the command | |
0a1b68b3 | 418 | char* output = NULL; |
d25dd74f MT |
419 | |
420 | // Execute the command inside the Pakfire environment | |
0a1b68b3 MT |
421 | r = pakfire_execute(parser->pakfire, argv, NULL, 0, |
422 | pakfire_parser_command_logger, &output); | |
d25dd74f MT |
423 | if (r) { |
424 | // Just log this and continue | |
425 | DEBUG(parser->pakfire, "Command '%s' failed with return code %d\n", command, r); | |
426 | } | |
427 | ||
0a1b68b3 MT |
428 | // Strip newline from output |
429 | if (output) | |
430 | pakfire_remove_trailing_newline(output); | |
431 | ||
d25dd74f MT |
432 | // Find the entire matched pattern |
433 | r = pcre2_substring_get_bynumber(match, 0, &pattern, &pattern_length); | |
0a1b68b3 MT |
434 | if (r) { |
435 | if (output) | |
436 | free(output); | |
437 | ||
d25dd74f | 438 | goto ERROR; |
0a1b68b3 | 439 | } |
d25dd74f MT |
440 | |
441 | // Replace all occurrences | |
442 | char* tmp = pakfire_string_replace(*buffer, (const char*)pattern, output); | |
0a1b68b3 MT |
443 | if (!tmp) { |
444 | if (output) | |
445 | free(output); | |
446 | ||
d25dd74f | 447 | goto ERROR; |
0a1b68b3 | 448 | } |
d25dd74f MT |
449 | |
450 | // Replace buffer | |
451 | free(*buffer); | |
452 | *buffer = tmp; | |
453 | ||
454 | // Free resources | |
455 | pcre2_substring_free(command); | |
456 | command = NULL; | |
457 | ||
458 | pcre2_substring_free(pattern); | |
459 | pattern = NULL; | |
0a1b68b3 MT |
460 | |
461 | if (output) | |
462 | free(output); | |
d25dd74f MT |
463 | } |
464 | ||
465 | ERROR: | |
466 | pcre2_match_data_free(match); | |
467 | ||
468 | if (command) | |
469 | pcre2_substring_free(command); | |
470 | if (pattern) | |
471 | pcre2_substring_free(pattern); | |
472 | ||
473 | return r; | |
474 | } | |
475 | ||
6accaf43 MT |
476 | static int pakfire_parser_expand_variables(PakfireParser parser, |
477 | const char* namespace, char** buffer) { | |
d25dd74f | 478 | int r = 0; |
c178c275 MT |
479 | PCRE2_UCHAR* variable = NULL; |
480 | PCRE2_SIZE variable_length; | |
481 | PCRE2_UCHAR* pattern = NULL; | |
482 | PCRE2_SIZE pattern_length; | |
483 | ||
c178c275 | 484 | // Allocate memory for results |
d25dd74f MT |
485 | pcre2_match_data* match = pcre2_match_data_create_from_pattern( |
486 | parser->regex_variable, NULL); | |
fb077c4c MT |
487 | |
488 | // Search for any variables | |
489 | while (1) { | |
490 | // Perform matching | |
a41868f9 MT |
491 | int r = pcre2_jit_match(parser->regex_variable, |
492 | (PCRE2_UCHAR*)*buffer, strlen(*buffer), 0, 0, match, NULL); | |
fb077c4c MT |
493 | |
494 | // End loop when we have expanded all variables | |
c178c275 | 495 | if (r == PCRE2_ERROR_NOMATCH) { |
6accaf43 | 496 | DEBUG(parser->pakfire, "No (more) matches found in: %s\n", *buffer); |
fb077c4c MT |
497 | break; |
498 | } | |
499 | ||
38fa3305 | 500 | // Find the variable name |
c178c275 MT |
501 | r = pcre2_substring_get_bynumber(match, 1, &variable, &variable_length); |
502 | if (r) | |
38fa3305 | 503 | goto ERROR; |
fb077c4c MT |
504 | |
505 | DEBUG(parser->pakfire, "Expanding variable: %s\n", variable); | |
506 | ||
507 | // Search for a declaration of this variable | |
38fa3305 | 508 | struct pakfire_parser_declaration* d = |
c178c275 | 509 | pakfire_parser_find_declaration(parser, namespace, (const char*)variable); |
fb077c4c | 510 | |
38fa3305 MT |
511 | // What is its value? |
512 | const char* repl = NULL; | |
513 | if (d && d->value) { | |
514 | DEBUG(parser->pakfire, "Replacing %%{%s} with %s.%s = '%s'\n", variable, | |
515 | d->namespace, d->name, d->value); | |
d310f14c | 516 | |
38fa3305 | 517 | repl = d->value; |
d310f14c | 518 | } else { |
38fa3305 | 519 | DEBUG(parser->pakfire, "Replacing %%{%s} with an empty string\n", variable); |
fb077c4c | 520 | |
38fa3305 MT |
521 | repl = ""; |
522 | } | |
fb077c4c | 523 | |
38fa3305 | 524 | // Find the entire matched pattern |
c178c275 MT |
525 | r = pcre2_substring_get_bynumber(match, 0, &pattern, &pattern_length); |
526 | if (r) | |
38fa3305 | 527 | goto ERROR; |
fb077c4c | 528 | |
38fa3305 | 529 | // Replace all occurrences |
6accaf43 | 530 | char* tmp = pakfire_string_replace(*buffer, (const char*)pattern, repl); |
38fa3305 MT |
531 | if (!tmp) |
532 | goto ERROR; | |
fb077c4c | 533 | |
38fa3305 | 534 | // Replace buffer |
6accaf43 MT |
535 | free(*buffer); |
536 | *buffer = tmp; | |
fb077c4c | 537 | |
38fa3305 | 538 | // Free resources |
c178c275 | 539 | pcre2_substring_free(variable); |
6accaf43 | 540 | variable = NULL; |
fb077c4c | 541 | |
6accaf43 MT |
542 | pcre2_substring_free(pattern); |
543 | pattern = NULL; | |
38fa3305 | 544 | } |
fb077c4c | 545 | |
38fa3305 | 546 | ERROR: |
c178c275 | 547 | pcre2_match_data_free(match); |
fb077c4c | 548 | |
38fa3305 | 549 | if (variable) |
c178c275 | 550 | pcre2_substring_free(variable); |
38fa3305 | 551 | if (pattern) |
c178c275 | 552 | pcre2_substring_free(pattern); |
38fa3305 | 553 | |
6accaf43 MT |
554 | return r; |
555 | } | |
556 | ||
557 | PAKFIRE_EXPORT char* pakfire_parser_expand(PakfireParser parser, | |
558 | const char* namespace, const char* value) { | |
559 | // Return NULL when the value is NULL | |
560 | if (!value) | |
561 | return NULL; | |
562 | ||
563 | // Create a working copy of the string we are expanding | |
564 | char* buffer = strdup(value); | |
565 | ||
566 | // Fast path to check if there are any variables in here whatsoever | |
567 | char* pos = strchr(value, '%'); | |
568 | if (!pos) | |
569 | return buffer; | |
570 | ||
d25dd74f | 571 | // Compile all regular expressions |
bf7acff3 | 572 | int r = pakfire_parser_compile_regexes(parser); |
d25dd74f MT |
573 | if (r) { |
574 | free(buffer); | |
575 | return NULL; | |
576 | } | |
577 | ||
6accaf43 | 578 | // Expand all variables |
d25dd74f | 579 | r = pakfire_parser_expand_variables(parser, namespace, &buffer); |
6accaf43 MT |
580 | if (r) { |
581 | if (buffer) | |
582 | free(buffer); | |
583 | ||
584 | return NULL; | |
585 | } | |
586 | ||
d25dd74f MT |
587 | // Expand all commands |
588 | if (parser->flags & PAKFIRE_PARSER_FLAGS_EXPAND_COMMANDS) { | |
589 | r = pakfire_parser_expand_commands(parser, &buffer); | |
590 | if (r) { | |
591 | if (buffer) | |
592 | free(buffer); | |
593 | ||
594 | return NULL; | |
595 | } | |
596 | } | |
597 | ||
fb077c4c MT |
598 | return buffer; |
599 | } | |
600 | ||
aa75cc88 MT |
601 | PAKFIRE_EXPORT char* pakfire_parser_get(PakfireParser parser, const char* namespace, const char* name) { |
602 | const char* value = pakfire_parser_get_raw(parser, namespace, name); | |
1a7200b5 | 603 | |
fb077c4c | 604 | // Return NULL when nothing was found |
1a7200b5 | 605 | if (!value) |
fb077c4c MT |
606 | return NULL; |
607 | ||
608 | // Otherwise return the expanded value | |
aa75cc88 | 609 | return pakfire_parser_expand(parser, namespace, value); |
fb077c4c MT |
610 | } |
611 | ||
e10e1ad1 MT |
612 | PAKFIRE_EXPORT char** pakfire_parser_get_split(PakfireParser parser, |
613 | const char* namespace, const char* name, char delim) { | |
614 | char* value = pakfire_parser_get(parser, namespace, name); | |
615 | if (!value) | |
616 | return NULL; | |
617 | ||
618 | // Split the string | |
619 | char** list = pakfire_split_string(value, delim); | |
620 | free(value); | |
621 | ||
622 | return list; | |
623 | } | |
624 | ||
122e45f5 | 625 | PAKFIRE_EXPORT int pakfire_parser_merge(PakfireParser parser1, PakfireParser parser2) { |
d310f14c MT |
626 | DEBUG(parser1->pakfire, "Merging parsers %p and %p\n", parser1, parser2); |
627 | ||
1a7200b5 MT |
628 | // Do not try to merge a parser with itself |
629 | if (parser1 == parser2) | |
122e45f5 | 630 | return EINVAL; |
1a7200b5 | 631 | |
aa75cc88 MT |
632 | char* namespace = NULL; |
633 | ||
fcbbe16e MT |
634 | for (unsigned int i = 0; i < parser2->num_declarations; i++) { |
635 | struct pakfire_parser_declaration* d = parser2->declarations[i]; | |
636 | if (!d) | |
637 | break; | |
d310f14c | 638 | |
aa75cc88 MT |
639 | if (parser2->namespace && d->namespace) |
640 | asprintf(&namespace, "%s.%s", parser2->namespace, d->namespace); | |
641 | else if (parser2->namespace) | |
642 | asprintf(&namespace, "%s", parser2->namespace); | |
643 | else if (d->namespace) | |
644 | asprintf(&namespace, "%s", d->namespace); | |
645 | else | |
646 | namespace = NULL; | |
713da225 | 647 | |
aa75cc88 | 648 | int r = pakfire_parser_set(parser1, namespace, d->name, d->value); |
713da225 | 649 | |
aa75cc88 MT |
650 | if (namespace) |
651 | free(namespace); | |
122e45f5 MT |
652 | |
653 | if (r) | |
654 | return r; | |
d310f14c MT |
655 | } |
656 | ||
122e45f5 | 657 | return 0; |
d310f14c MT |
658 | } |
659 | ||
4b7699d9 MT |
660 | PAKFIRE_EXPORT int pakfire_parser_read(PakfireParser parser, FILE* f, |
661 | struct pakfire_parser_error** error) { | |
fb077c4c MT |
662 | char* data; |
663 | size_t len; | |
664 | ||
665 | int r = pakfire_read_file_into_buffer(f, &data, &len); | |
666 | if (r) | |
667 | return r; | |
668 | ||
4b7699d9 | 669 | r = pakfire_parser_parse_data(parser, data, len, error); |
89045ec6 MT |
670 | |
671 | if (data) | |
f0d6233d | 672 | free(data); |
89045ec6 | 673 | |
fb077c4c | 674 | return r; |
89045ec6 | 675 | } |
dac3330d | 676 | |
4b7699d9 MT |
677 | PAKFIRE_EXPORT int pakfire_parser_read_file(PakfireParser parser, const char* path, |
678 | struct pakfire_parser_error** error) { | |
774aeac4 MT |
679 | FILE* f = fopen(path, "r"); |
680 | if (!f) | |
681 | return 1; | |
682 | ||
4b7699d9 | 683 | int r = pakfire_parser_read(parser, f, error); |
774aeac4 MT |
684 | fclose(f); |
685 | ||
686 | return r; | |
687 | } | |
688 | ||
4b7699d9 MT |
689 | PAKFIRE_EXPORT int pakfire_parser_parse(PakfireParser parser, |
690 | const char* data, size_t size, struct pakfire_parser_error** error) { | |
691 | return pakfire_parser_parse_data(parser, data, size, error); | |
40f17018 MT |
692 | } |
693 | ||
dac3330d MT |
694 | PAKFIRE_EXPORT char* pakfire_parser_dump(PakfireParser parser) { |
695 | char* s = NULL; | |
696 | ||
aa75cc88 MT |
697 | char buffer[1024]; |
698 | ||
dac3330d MT |
699 | for (unsigned int i = 0; i < parser->num_declarations; i++) { |
700 | struct pakfire_parser_declaration* d = parser->declarations[i]; | |
701 | ||
702 | if (d) { | |
aa75cc88 MT |
703 | if (d->namespace) |
704 | snprintf(buffer, sizeof(buffer) - 1, "%s.%s", d->namespace, d->name); | |
dac3330d | 705 | else |
aa75cc88 MT |
706 | snprintf(buffer, sizeof(buffer) - 1, "%s", d->name); |
707 | ||
708 | asprintf(&s, "%s%-24s = %s\n", (s) ? s : "", buffer, d->value); | |
dac3330d MT |
709 | } |
710 | } | |
711 | ||
712 | return s; | |
713 | } | |
40f17018 MT |
714 | |
715 | PAKFIRE_EXPORT const char* pakfire_parser_get_namespace(PakfireParser parser) { | |
716 | return parser->namespace; | |
717 | } | |
713da225 MT |
718 | |
719 | PAKFIRE_EXPORT int pakfire_parser_set_namespace(PakfireParser parser, const char* namespace) { | |
720 | if (parser->namespace) | |
721 | free(parser->namespace); | |
722 | ||
723 | if (namespace) | |
724 | parser->namespace = strdup(namespace); | |
725 | else | |
726 | parser->namespace = NULL; | |
727 | ||
728 | DEBUG(parser->pakfire, "%p: Set namespace to: %s\n", parser, parser->namespace); | |
729 | ||
730 | return 0; | |
731 | } | |
4b7699d9 | 732 | |
f59d680a MT |
733 | PAKFIRE_EXPORT int pakfire_parser_create_package(PakfireParser parser, |
734 | PakfirePackage* pkg, PakfireRepo repo, const char* namespace) { | |
735 | int r = 1; | |
736 | ||
737 | char* name = NULL; | |
738 | char* epoch = NULL; | |
739 | char* version = NULL; | |
740 | char* release = NULL; | |
741 | char* arch = NULL; | |
742 | char* evr = NULL; | |
743 | ||
744 | // Fetch name | |
745 | name = pakfire_parser_get(parser, namespace, "name"); | |
746 | if (!name) { | |
747 | ERROR(parser->pakfire, "Name is empty\n"); | |
748 | goto CLEANUP; | |
749 | } | |
750 | ||
751 | // Fetch epoch | |
752 | epoch = pakfire_parser_get(parser, namespace, "epoch"); | |
753 | if (!epoch) { | |
754 | ERROR(parser->pakfire, "Epoch is empty\n"); | |
755 | goto CLEANUP; | |
756 | } | |
757 | ||
758 | // Fetch version | |
759 | version = pakfire_parser_get(parser, namespace, "version"); | |
760 | if (!version) { | |
761 | ERROR(parser->pakfire, "Version is empty\n"); | |
762 | goto CLEANUP; | |
763 | } | |
764 | ||
765 | // Fetch release | |
766 | release = pakfire_parser_get(parser, namespace, "release"); | |
767 | if (!release) { | |
768 | ERROR(parser->pakfire, "Release is empty\n"); | |
769 | goto CLEANUP; | |
770 | } | |
771 | ||
772 | // Fetch arch | |
773 | arch = pakfire_parser_get(parser, namespace, "arch"); | |
774 | if (!arch) { | |
775 | ERROR(parser->pakfire, "Arch is empty\n"); | |
776 | goto CLEANUP; | |
777 | } | |
778 | ||
779 | // Compile EVR | |
780 | evr = pakfire_package_join_evr(epoch, version, release); | |
781 | if (!evr) | |
782 | goto CLEANUP; | |
783 | ||
784 | // Create a new package object | |
785 | *pkg = pakfire_package_create(parser->pakfire, repo, name, evr, arch); | |
786 | if (!*pkg) { | |
787 | ERROR(parser->pakfire, "Could not create package\n"); | |
788 | goto CLEANUP; | |
789 | } | |
790 | ||
df552c32 MT |
791 | // Assign a new UUID to this package |
792 | char* uuid = pakfire_generate_uuid(); | |
793 | if (!uuid) { | |
794 | ERROR(parser->pakfire, "Generating a UUID failed: %s\n", strerror(errno)); | |
795 | goto CLEANUP; | |
796 | } | |
797 | ||
798 | pakfire_package_set_uuid(*pkg, uuid); | |
799 | free(uuid); | |
800 | ||
d73ca64f MT |
801 | // Set build host |
802 | char hostname[HOST_NAME_MAX + 1]; | |
803 | r = gethostname(hostname, HOST_NAME_MAX + 1); | |
804 | if (r) { | |
805 | ERROR(parser->pakfire, "gethostname() failed: %s\n", strerror(errno)); | |
806 | goto CLEANUP; | |
807 | } | |
808 | ||
809 | pakfire_package_set_build_host(*pkg, hostname); | |
810 | ||
811 | // Set build time | |
812 | time_t now = time(NULL); | |
813 | ||
814 | pakfire_package_set_build_time(*pkg, now); | |
815 | ||
f00837c0 MT |
816 | // Assign more attributes |
817 | const struct attribute { | |
818 | const char* name; | |
819 | void(*func)(PakfirePackage pkg, const char* value); | |
820 | } attributes[] = { | |
821 | { "summary", pakfire_package_set_summary, }, | |
822 | { "description", pakfire_package_set_description, }, | |
823 | { "license", pakfire_package_set_license, }, | |
824 | { "url", pakfire_package_set_url, }, | |
825 | { "groups", pakfire_package_set_groups, }, | |
826 | { "vendor", pakfire_package_set_vendor, }, | |
827 | { "maintainer", pakfire_package_set_maintainer, }, | |
828 | { NULL }, | |
829 | }; | |
830 | ||
831 | for (const struct attribute* a = attributes; a->name; a++) { | |
832 | char* value = pakfire_parser_get(parser, namespace, a->name); | |
833 | if (!value) | |
834 | continue; | |
835 | ||
836 | a->func(*pkg, value); | |
837 | free(value); | |
838 | } | |
839 | ||
f59d680a MT |
840 | // All okay |
841 | r = 0; | |
842 | ||
843 | CLEANUP: | |
844 | if (name) | |
845 | free(name); | |
846 | if (epoch) | |
847 | free(epoch); | |
848 | if (version) | |
849 | free(version); | |
850 | if (release) | |
851 | free(release); | |
852 | if (arch) | |
853 | free(arch); | |
854 | ||
855 | return r; | |
856 | } | |
857 | ||
4b7699d9 MT |
858 | // Error |
859 | ||
860 | struct pakfire_parser_error { | |
861 | PakfireParser parser; | |
862 | int nrefs; | |
863 | ||
864 | char* filename; | |
865 | int line; | |
866 | char* message; | |
867 | }; | |
868 | ||
869 | PAKFIRE_EXPORT int pakfire_parser_error_create(struct pakfire_parser_error** error, | |
870 | PakfireParser parser, const char* filename, int line, const char* message) { | |
871 | struct pakfire_parser_error* e = calloc(1, sizeof(*e)); | |
872 | if (!e) | |
873 | return ENOMEM; | |
874 | ||
875 | // Initialize reference counter | |
876 | e->nrefs = 1; | |
877 | ||
878 | e->parser = pakfire_parser_ref(parser); | |
879 | ||
880 | // Copy all input values | |
881 | if (filename) | |
882 | e->filename = strdup(filename); | |
883 | ||
884 | e->line = line; | |
885 | ||
886 | if (message) | |
887 | e->message = strdup(message); | |
888 | ||
889 | *error = e; | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
894 | PAKFIRE_EXPORT struct pakfire_parser_error* pakfire_parser_error_ref( | |
895 | struct pakfire_parser_error* error) { | |
896 | ++error->nrefs; | |
897 | ||
898 | return error; | |
899 | } | |
900 | ||
901 | static void pakfire_parser_error_free(struct pakfire_parser_error* error) { | |
902 | pakfire_parser_unref(error->parser); | |
903 | ||
904 | if (error->filename) | |
905 | free(error->filename); | |
906 | ||
907 | if (error->message) | |
908 | free(error->message); | |
909 | ||
910 | free(error); | |
911 | } | |
912 | ||
913 | PAKFIRE_EXPORT struct pakfire_parser_error* pakfire_parser_error_unref( | |
914 | struct pakfire_parser_error* error) { | |
915 | if (--error->nrefs > 0) | |
916 | return error; | |
917 | ||
918 | pakfire_parser_error_free(error); | |
919 | ||
920 | return NULL; | |
921 | } | |
922 | ||
923 | PAKFIRE_EXPORT const char* pakfire_parser_error_get_filename( | |
924 | struct pakfire_parser_error* error) { | |
925 | return error->filename; | |
926 | } | |
927 | ||
928 | PAKFIRE_EXPORT int pakfire_parser_error_get_line(struct pakfire_parser_error* error) { | |
929 | return error->line; | |
930 | } | |
931 | ||
932 | PAKFIRE_EXPORT const char* pakfire_parser_error_get_message( | |
933 | struct pakfire_parser_error* error) { | |
934 | return error->message; | |
935 | } |