1 /*
2 +----------------------------------------------------------------------+
3 | phar:// stream wrapper support |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2005-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt. |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Gregory Beaver <cellog@php.net> |
16 | Marcus Boerger <helly@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 #define PHAR_STREAM 1
21 #include "phar_internal.h"
22 #include "stream.h"
23 #include "dirstream.h"
24
25 php_stream_ops phar_ops = {
26 phar_stream_write, /* write */
27 phar_stream_read, /* read */
28 phar_stream_close, /* close */
29 phar_stream_flush, /* flush */
30 "phar stream",
31 phar_stream_seek, /* seek */
32 NULL, /* cast */
33 phar_stream_stat, /* stat */
34 NULL, /* set option */
35 };
36
37 php_stream_wrapper_ops phar_stream_wops = {
38 phar_wrapper_open_url,
39 NULL, /* phar_wrapper_close */
40 NULL, /* phar_wrapper_stat, */
41 phar_wrapper_stat, /* stat_url */
42 phar_wrapper_open_dir, /* opendir */
43 "phar",
44 phar_wrapper_unlink, /* unlink */
45 phar_wrapper_rename, /* rename */
46 phar_wrapper_mkdir, /* create directory */
47 phar_wrapper_rmdir, /* remove directory */
48 };
49
50 php_stream_wrapper php_stream_phar_wrapper = {
51 &phar_stream_wops,
52 NULL,
53 0 /* is_url */
54 };
55
56 /**
57 * Open a phar file for streams API
58 */
phar_parse_url(php_stream_wrapper * wrapper,const char * filename,const char * mode,int options TSRMLS_DC)59 php_url* phar_parse_url(php_stream_wrapper *wrapper, const char *filename, const char *mode, int options TSRMLS_DC) /* {{{ */
60 {
61 php_url *resource;
62 char *arch = NULL, *entry = NULL, *error;
63 int arch_len, entry_len;
64
65 if (strlen(filename) < 7 || strncasecmp(filename, "phar://", 7)) {
66 return NULL;
67 }
68 if (mode[0] == 'a') {
69 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
70 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: open mode append not supported");
71 }
72 return NULL;
73 }
74 if (phar_split_fname(filename, strlen(filename), &arch, &arch_len, &entry, &entry_len, 2, (mode[0] == 'w' ? 2 : 0) TSRMLS_CC) == FAILURE) {
75 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
76 if (arch && !entry) {
77 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: no directory in \"%s\", must have at least phar://%s/ for root directory (always use full path to a new phar)", filename, arch);
78 arch = NULL;
79 } else {
80 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url or non-existent phar \"%s\"", filename);
81 }
82 }
83 return NULL;
84 }
85 resource = ecalloc(1, sizeof(php_url));
86 resource->scheme = estrndup("phar", 4);
87 resource->host = arch;
88
89 resource->path = entry;
90 #if MBO_0
91 if (resource) {
92 fprintf(stderr, "Alias: %s\n", alias);
93 fprintf(stderr, "Scheme: %s\n", resource->scheme);
94 /* fprintf(stderr, "User: %s\n", resource->user);*/
95 /* fprintf(stderr, "Pass: %s\n", resource->pass ? "***" : NULL);*/
96 fprintf(stderr, "Host: %s\n", resource->host);
97 /* fprintf(stderr, "Port: %d\n", resource->port);*/
98 fprintf(stderr, "Path: %s\n", resource->path);
99 /* fprintf(stderr, "Query: %s\n", resource->query);*/
100 /* fprintf(stderr, "Fragment: %s\n", resource->fragment);*/
101 }
102 #endif
103 if (mode[0] == 'w' || (mode[0] == 'r' && mode[1] == '+')) {
104 phar_archive_data **pphar = NULL, *phar;
105
106 if (PHAR_GLOBALS->request_init && PHAR_GLOBALS->phar_fname_map.arBuckets && FAILURE == zend_hash_find(&(PHAR_GLOBALS->phar_fname_map), arch, arch_len, (void **)&pphar)) {
107 pphar = NULL;
108 }
109 if (PHAR_G(readonly) && (!pphar || !(*pphar)->is_data)) {
110 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
111 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: write operations disabled by the php.ini setting phar.readonly");
112 }
113 php_url_free(resource);
114 return NULL;
115 }
116 if (phar_open_or_create_filename(resource->host, arch_len, NULL, 0, 0, options, &phar, &error TSRMLS_CC) == FAILURE)
117 {
118 if (error) {
119 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
120 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
121 }
122 efree(error);
123 }
124 php_url_free(resource);
125 return NULL;
126 }
127 if (phar->is_persistent && FAILURE == phar_copy_on_write(&phar TSRMLS_CC)) {
128 if (error) {
129 spprintf(&error, 0, "Cannot open cached phar '%s' as writeable, copy on write failed", resource->host);
130 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
131 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
132 }
133 efree(error);
134 }
135 php_url_free(resource);
136 return NULL;
137 }
138 } else {
139 if (phar_open_from_filename(resource->host, arch_len, NULL, 0, options, NULL, &error TSRMLS_CC) == FAILURE)
140 {
141 if (error) {
142 if (!(options & PHP_STREAM_URL_STAT_QUIET)) {
143 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
144 }
145 efree(error);
146 }
147 php_url_free(resource);
148 return NULL;
149 }
150 }
151 return resource;
152 }
153 /* }}} */
154
155 /**
156 * used for fopen('phar://...') and company
157 */
phar_wrapper_open_url(php_stream_wrapper * wrapper,const char * path,const char * mode,int options,char ** opened_path,php_stream_context * context STREAMS_DC TSRMLS_DC)158 static php_stream * phar_wrapper_open_url(php_stream_wrapper *wrapper, const char *path, const char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC) /* {{{ */
159 {
160 phar_archive_data *phar;
161 phar_entry_data *idata;
162 char *internal_file;
163 char *error;
164 HashTable *pharcontext;
165 php_url *resource = NULL;
166 php_stream *fpf;
167 zval **pzoption, *metadata;
168 uint host_len;
169
170 if ((resource = phar_parse_url(wrapper, path, mode, options TSRMLS_CC)) == NULL) {
171 return NULL;
172 }
173
174 /* we must have at the very least phar://alias.phar/internalfile.php */
175 if (!resource->scheme || !resource->host || !resource->path) {
176 php_url_free(resource);
177 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url \"%s\"", path);
178 return NULL;
179 }
180
181 if (strcasecmp("phar", resource->scheme)) {
182 php_url_free(resource);
183 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: not a phar stream url \"%s\"", path);
184 return NULL;
185 }
186
187 host_len = strlen(resource->host);
188 phar_request_initialize(TSRMLS_C);
189
190 /* strip leading "/" */
191 internal_file = estrdup(resource->path + 1);
192 if (mode[0] == 'w' || (mode[0] == 'r' && mode[1] == '+')) {
193 if (NULL == (idata = phar_get_or_create_entry_data(resource->host, host_len, internal_file, strlen(internal_file), mode, 0, &error, 1 TSRMLS_CC))) {
194 if (error) {
195 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
196 efree(error);
197 } else {
198 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: file \"%s\" could not be created in phar \"%s\"", internal_file, resource->host);
199 }
200 efree(internal_file);
201 php_url_free(resource);
202 return NULL;
203 }
204 if (error) {
205 efree(error);
206 }
207 fpf = php_stream_alloc(&phar_ops, idata, NULL, mode);
208 php_url_free(resource);
209 efree(internal_file);
210
211 if (context && context->options && zend_hash_find(HASH_OF(context->options), "phar", sizeof("phar"), (void**)&pzoption) == SUCCESS) {
212 pharcontext = HASH_OF(*pzoption);
213 if (idata->internal_file->uncompressed_filesize == 0
214 && idata->internal_file->compressed_filesize == 0
215 && zend_hash_find(pharcontext, "compress", sizeof("compress"), (void**)&pzoption) == SUCCESS
216 && Z_TYPE_PP(pzoption) == IS_LONG
217 && (Z_LVAL_PP(pzoption) & ~PHAR_ENT_COMPRESSION_MASK) == 0
218 ) {
219 idata->internal_file->flags &= ~PHAR_ENT_COMPRESSION_MASK;
220 idata->internal_file->flags |= Z_LVAL_PP(pzoption);
221 }
222 if (zend_hash_find(pharcontext, "metadata", sizeof("metadata"), (void**)&pzoption) == SUCCESS) {
223 if (idata->internal_file->metadata) {
224 zval_ptr_dtor(&idata->internal_file->metadata);
225 idata->internal_file->metadata = NULL;
226 }
227
228 MAKE_STD_ZVAL(idata->internal_file->metadata);
229 metadata = *pzoption;
230 ZVAL_ZVAL(idata->internal_file->metadata, metadata, 1, 0);
231 idata->phar->is_modified = 1;
232 }
233 }
234 if (opened_path) {
235 spprintf(opened_path, MAXPATHLEN, "phar://%s/%s", idata->phar->fname, idata->internal_file->filename);
236 }
237 return fpf;
238 } else {
239 if (!*internal_file && (options & STREAM_OPEN_FOR_INCLUDE)) {
240 /* retrieve the stub */
241 if (FAILURE == phar_get_archive(&phar, resource->host, host_len, NULL, 0, NULL TSRMLS_CC)) {
242 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "file %s is not a valid phar archive", resource->host);
243 efree(internal_file);
244 php_url_free(resource);
245 return NULL;
246 }
247 if (phar->is_tar || phar->is_zip) {
248 if ((FAILURE == phar_get_entry_data(&idata, resource->host, host_len, ".phar/stub.php", sizeof(".phar/stub.php")-1, "r", 0, &error, 0 TSRMLS_CC)) || !idata) {
249 goto idata_error;
250 }
251 efree(internal_file);
252 if (opened_path) {
253 spprintf(opened_path, MAXPATHLEN, "%s", phar->fname);
254 }
255 php_url_free(resource);
256 goto phar_stub;
257 } else {
258 phar_entry_info *entry;
259
260 entry = (phar_entry_info *) ecalloc(1, sizeof(phar_entry_info));
261 entry->is_temp_dir = 1;
262 entry->filename = estrndup("", 0);
263 entry->filename_len = 0;
264 entry->phar = phar;
265 entry->offset = entry->offset_abs = 0;
266 entry->compressed_filesize = entry->uncompressed_filesize = phar->halt_offset;
267 entry->is_crc_checked = 1;
268
269 idata = (phar_entry_data *) ecalloc(1, sizeof(phar_entry_data));
270 idata->fp = phar_get_pharfp(phar TSRMLS_CC);
271 idata->phar = phar;
272 idata->internal_file = entry;
273 if (!phar->is_persistent) {
274 ++(entry->phar->refcount);
275 }
276 ++(entry->fp_refcount);
277 php_url_free(resource);
278 if (opened_path) {
279 spprintf(opened_path, MAXPATHLEN, "%s", phar->fname);
280 }
281 efree(internal_file);
282 goto phar_stub;
283 }
284 }
285 /* read-only access is allowed to magic files in .phar directory */
286 if ((FAILURE == phar_get_entry_data(&idata, resource->host, host_len, internal_file, strlen(internal_file), "r", 0, &error, 0 TSRMLS_CC)) || !idata) {
287 idata_error:
288 if (error) {
289 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
290 efree(error);
291 } else {
292 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: \"%s\" is not a file in phar \"%s\"", internal_file, resource->host);
293 }
294 efree(internal_file);
295 php_url_free(resource);
296 return NULL;
297 }
298 }
299 php_url_free(resource);
300 #if MBO_0
301 fprintf(stderr, "Pharname: %s\n", idata->phar->filename);
302 fprintf(stderr, "Filename: %s\n", internal_file);
303 fprintf(stderr, "Entry: %s\n", idata->internal_file->filename);
304 fprintf(stderr, "Size: %u\n", idata->internal_file->uncompressed_filesize);
305 fprintf(stderr, "Compressed: %u\n", idata->internal_file->flags);
306 fprintf(stderr, "Offset: %u\n", idata->internal_file->offset_within_phar);
307 fprintf(stderr, "Cached: %s\n", idata->internal_file->filedata ? "yes" : "no");
308 #endif
309
310 /* check length, crc32 */
311 if (!idata->internal_file->is_crc_checked && phar_postprocess_file(idata, idata->internal_file->crc32, &error, 2 TSRMLS_CC) != SUCCESS) {
312 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
313 efree(error);
314 phar_entry_delref(idata TSRMLS_CC);
315 efree(internal_file);
316 return NULL;
317 }
318
319 if (!PHAR_G(cwd_init) && options & STREAM_OPEN_FOR_INCLUDE) {
320 char *entry = idata->internal_file->filename, *cwd;
321
322 PHAR_G(cwd_init) = 1;
323 if ((idata->phar->is_tar || idata->phar->is_zip) && idata->internal_file->filename_len == sizeof(".phar/stub.php")-1 && !strncmp(idata->internal_file->filename, ".phar/stub.php", sizeof(".phar/stub.php")-1)) {
324 /* we're executing the stub, which doesn't count as a file */
325 PHAR_G(cwd_init) = 0;
326 } else if ((cwd = strrchr(entry, '/'))) {
327 PHAR_G(cwd_len) = cwd - entry;
328 PHAR_G(cwd) = estrndup(entry, PHAR_G(cwd_len));
329 } else {
330 /* root directory */
331 PHAR_G(cwd_len) = 0;
332 PHAR_G(cwd) = NULL;
333 }
334 }
335 if (opened_path) {
336 spprintf(opened_path, MAXPATHLEN, "phar://%s/%s", idata->phar->fname, idata->internal_file->filename);
337 }
338 efree(internal_file);
339 phar_stub:
340 fpf = php_stream_alloc(&phar_ops, idata, NULL, mode);
341 return fpf;
342 }
343 /* }}} */
344
345 /**
346 * Used for fclose($fp) where $fp is a phar archive
347 */
phar_stream_close(php_stream * stream,int close_handle TSRMLS_DC)348 static int phar_stream_close(php_stream *stream, int close_handle TSRMLS_DC) /* {{{ */
349 {
350 phar_entry_delref((phar_entry_data *)stream->abstract TSRMLS_CC);
351
352 return 0;
353 }
354 /* }}} */
355
356 /**
357 * used for fread($fp) and company on a fopen()ed phar file handle
358 */
phar_stream_read(php_stream * stream,char * buf,size_t count TSRMLS_DC)359 static size_t phar_stream_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) /* {{{ */
360 {
361 phar_entry_data *data = (phar_entry_data *)stream->abstract;
362 size_t got;
363 phar_entry_info *entry;
364
365 if (data->internal_file->link) {
366 entry = phar_get_link_source(data->internal_file TSRMLS_CC);
367 } else {
368 entry = data->internal_file;
369 }
370
371 if (entry->is_deleted) {
372 stream->eof = 1;
373 return 0;
374 }
375
376 /* use our proxy position */
377 php_stream_seek(data->fp, data->position + data->zero, SEEK_SET);
378
379 got = php_stream_read(data->fp, buf, MIN(count, entry->uncompressed_filesize - data->position));
380 data->position = php_stream_tell(data->fp) - data->zero;
381 stream->eof = (data->position == (off_t) entry->uncompressed_filesize);
382
383 return got;
384 }
385 /* }}} */
386
387 /**
388 * Used for fseek($fp) on a phar file handle
389 */
phar_stream_seek(php_stream * stream,off_t offset,int whence,off_t * newoffset TSRMLS_DC)390 static int phar_stream_seek(php_stream *stream, off_t offset, int whence, off_t *newoffset TSRMLS_DC) /* {{{ */
391 {
392 phar_entry_data *data = (phar_entry_data *)stream->abstract;
393 phar_entry_info *entry;
394 int res;
395 off_t temp;
396
397 if (data->internal_file->link) {
398 entry = phar_get_link_source(data->internal_file TSRMLS_CC);
399 } else {
400 entry = data->internal_file;
401 }
402
403 switch (whence) {
404 case SEEK_END :
405 temp = data->zero + entry->uncompressed_filesize + offset;
406 break;
407 case SEEK_CUR :
408 temp = data->zero + data->position + offset;
409 break;
410 case SEEK_SET :
411 temp = data->zero + offset;
412 break;
413 default:
414 temp = 0;
415 }
416 if (temp > data->zero + (off_t) entry->uncompressed_filesize) {
417 *newoffset = -1;
418 return -1;
419 }
420 if (temp < data->zero) {
421 *newoffset = -1;
422 return -1;
423 }
424 res = php_stream_seek(data->fp, temp, SEEK_SET);
425 *newoffset = php_stream_tell(data->fp) - data->zero;
426 data->position = *newoffset;
427 return res;
428 }
429 /* }}} */
430
431 /**
432 * Used for writing to a phar file
433 */
phar_stream_write(php_stream * stream,const char * buf,size_t count TSRMLS_DC)434 static size_t phar_stream_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) /* {{{ */
435 {
436 phar_entry_data *data = (phar_entry_data *) stream->abstract;
437
438 php_stream_seek(data->fp, data->position, SEEK_SET);
439 if (count != php_stream_write(data->fp, buf, count)) {
440 php_stream_wrapper_log_error(stream->wrapper, stream->flags TSRMLS_CC, "phar error: Could not write %d characters to \"%s\" in phar \"%s\"", (int) count, data->internal_file->filename, data->phar->fname);
441 return -1;
442 }
443 data->position = php_stream_tell(data->fp);
444 if (data->position > (off_t)data->internal_file->uncompressed_filesize) {
445 data->internal_file->uncompressed_filesize = data->position;
446 }
447 data->internal_file->compressed_filesize = data->internal_file->uncompressed_filesize;
448 data->internal_file->old_flags = data->internal_file->flags;
449 data->internal_file->is_modified = 1;
450 return count;
451 }
452 /* }}} */
453
454 /**
455 * Used to save work done on a writeable phar
456 */
phar_stream_flush(php_stream * stream TSRMLS_DC)457 static int phar_stream_flush(php_stream *stream TSRMLS_DC) /* {{{ */
458 {
459 char *error;
460 int ret;
461 phar_entry_data *data = (phar_entry_data *) stream->abstract;
462
463 if (data->internal_file->is_modified) {
464 data->internal_file->timestamp = time(0);
465 ret = phar_flush(data->phar, 0, 0, 0, &error TSRMLS_CC);
466 if (error) {
467 php_stream_wrapper_log_error(stream->wrapper, REPORT_ERRORS TSRMLS_CC, "%s", error);
468 efree(error);
469 }
470 return ret;
471 } else {
472 return EOF;
473 }
474 }
475 /* }}} */
476
477 /* {{{ phar_dostat */
478 /**
479 * stat an opened phar file handle stream, used by phar_stat()
480 */
phar_dostat(phar_archive_data * phar,phar_entry_info * data,php_stream_statbuf * ssb,zend_bool is_temp_dir TSRMLS_DC)481 void phar_dostat(phar_archive_data *phar, phar_entry_info *data, php_stream_statbuf *ssb, zend_bool is_temp_dir TSRMLS_DC)
482 {
483 memset(ssb, 0, sizeof(php_stream_statbuf));
484
485 if (!is_temp_dir && !data->is_dir) {
486 ssb->sb.st_size = data->uncompressed_filesize;
487 ssb->sb.st_mode = data->flags & PHAR_ENT_PERM_MASK;
488 ssb->sb.st_mode |= S_IFREG; /* regular file */
489 /* timestamp is just the timestamp when this was added to the phar */
490 #ifdef NETWARE
491 ssb->sb.st_mtime.tv_sec = data->timestamp;
492 ssb->sb.st_atime.tv_sec = data->timestamp;
493 ssb->sb.st_ctime.tv_sec = data->timestamp;
494 #else
495 ssb->sb.st_mtime = data->timestamp;
496 ssb->sb.st_atime = data->timestamp;
497 ssb->sb.st_ctime = data->timestamp;
498 #endif
499 } else if (!is_temp_dir && data->is_dir) {
500 ssb->sb.st_size = 0;
501 ssb->sb.st_mode = data->flags & PHAR_ENT_PERM_MASK;
502 ssb->sb.st_mode |= S_IFDIR; /* regular directory */
503 /* timestamp is just the timestamp when this was added to the phar */
504 #ifdef NETWARE
505 ssb->sb.st_mtime.tv_sec = data->timestamp;
506 ssb->sb.st_atime.tv_sec = data->timestamp;
507 ssb->sb.st_ctime.tv_sec = data->timestamp;
508 #else
509 ssb->sb.st_mtime = data->timestamp;
510 ssb->sb.st_atime = data->timestamp;
511 ssb->sb.st_ctime = data->timestamp;
512 #endif
513 } else {
514 ssb->sb.st_size = 0;
515 ssb->sb.st_mode = 0777;
516 ssb->sb.st_mode |= S_IFDIR; /* regular directory */
517 #ifdef NETWARE
518 ssb->sb.st_mtime.tv_sec = phar->max_timestamp;
519 ssb->sb.st_atime.tv_sec = phar->max_timestamp;
520 ssb->sb.st_ctime.tv_sec = phar->max_timestamp;
521 #else
522 ssb->sb.st_mtime = phar->max_timestamp;
523 ssb->sb.st_atime = phar->max_timestamp;
524 ssb->sb.st_ctime = phar->max_timestamp;
525 #endif
526 }
527 if (!phar->is_writeable) {
528 ssb->sb.st_mode = (ssb->sb.st_mode & 0555) | (ssb->sb.st_mode & ~0777);
529 }
530
531 ssb->sb.st_nlink = 1;
532 ssb->sb.st_rdev = -1;
533 /* this is only for APC, so use /dev/null device - no chance of conflict there! */
534 ssb->sb.st_dev = 0xc;
535 /* generate unique inode number for alias/filename, so no phars will conflict */
536 if (!is_temp_dir) {
537 ssb->sb.st_ino = data->inode;
538 }
539 #ifndef PHP_WIN32
540 ssb->sb.st_blksize = -1;
541 ssb->sb.st_blocks = -1;
542 #endif
543 }
544 /* }}}*/
545
546 /**
547 * Stat an opened phar file handle
548 */
phar_stream_stat(php_stream * stream,php_stream_statbuf * ssb TSRMLS_DC)549 static int phar_stream_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC) /* {{{ */
550 {
551 phar_entry_data *data = (phar_entry_data *)stream->abstract;
552
553 /* If ssb is NULL then someone is misbehaving */
554 if (!ssb) {
555 return -1;
556 }
557
558 phar_dostat(data->phar, data->internal_file, ssb, 0 TSRMLS_CC);
559 return 0;
560 }
561 /* }}} */
562
563 /**
564 * Stream wrapper stat implementation of stat()
565 */
phar_wrapper_stat(php_stream_wrapper * wrapper,const char * url,int flags,php_stream_statbuf * ssb,php_stream_context * context TSRMLS_DC)566 static int phar_wrapper_stat(php_stream_wrapper *wrapper, const char *url, int flags,
567 php_stream_statbuf *ssb, php_stream_context *context TSRMLS_DC) /* {{{ */
568 {
569 php_url *resource = NULL;
570 char *internal_file, *error;
571 phar_archive_data *phar;
572 phar_entry_info *entry;
573 uint host_len;
574 int internal_file_len;
575
576 if ((resource = phar_parse_url(wrapper, url, "r", flags|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
577 return FAILURE;
578 }
579
580 /* we must have at the very least phar://alias.phar/internalfile.php */
581 if (!resource->scheme || !resource->host || !resource->path) {
582 php_url_free(resource);
583 return FAILURE;
584 }
585
586 if (strcasecmp("phar", resource->scheme)) {
587 php_url_free(resource);
588 return FAILURE;
589 }
590
591 host_len = strlen(resource->host);
592 phar_request_initialize(TSRMLS_C);
593
594 internal_file = resource->path + 1; /* strip leading "/" */
595 /* find the phar in our trusty global hash indexed by alias (host of phar://blah.phar/file.whatever) */
596 if (FAILURE == phar_get_archive(&phar, resource->host, host_len, NULL, 0, &error TSRMLS_CC)) {
597 php_url_free(resource);
598 if (error) {
599 efree(error);
600 }
601 return FAILURE;
602 }
603 if (error) {
604 efree(error);
605 }
606 if (*internal_file == '\0') {
607 /* root directory requested */
608 phar_dostat(phar, NULL, ssb, 1 TSRMLS_CC);
609 php_url_free(resource);
610 return SUCCESS;
611 }
612 if (!phar->manifest.arBuckets) {
613 php_url_free(resource);
614 return FAILURE;
615 }
616 internal_file_len = strlen(internal_file);
617 /* search through the manifest of files, and if we have an exact match, it's a file */
618 if (SUCCESS == zend_hash_find(&phar->manifest, internal_file, internal_file_len, (void**)&entry)) {
619 phar_dostat(phar, entry, ssb, 0 TSRMLS_CC);
620 php_url_free(resource);
621 return SUCCESS;
622 }
623 if (zend_hash_exists(&(phar->virtual_dirs), internal_file, internal_file_len)) {
624 phar_dostat(phar, NULL, ssb, 1 TSRMLS_CC);
625 php_url_free(resource);
626 return SUCCESS;
627 }
628 /* check for mounted directories */
629 if (phar->mounted_dirs.arBuckets && zend_hash_num_elements(&phar->mounted_dirs)) {
630 char *str_key;
631 ulong unused;
632 uint keylen;
633 HashPosition pos;
634
635 for (zend_hash_internal_pointer_reset_ex(&phar->mounted_dirs, &pos);
636 HASH_KEY_NON_EXISTENT != zend_hash_get_current_key_ex(&phar->mounted_dirs, &str_key, &keylen, &unused, 0, &pos);
637 zend_hash_move_forward_ex(&phar->mounted_dirs, &pos)
638 ) {
639 if ((int)keylen >= internal_file_len || strncmp(str_key, internal_file, keylen)) {
640 continue;
641 } else {
642 char *test;
643 int test_len;
644 php_stream_statbuf ssbi;
645
646 if (SUCCESS != zend_hash_find(&phar->manifest, str_key, keylen, (void **) &entry)) {
647 goto free_resource;
648 }
649 if (!entry->tmp || !entry->is_mounted) {
650 goto free_resource;
651 }
652 test_len = spprintf(&test, MAXPATHLEN, "%s%s", entry->tmp, internal_file + keylen);
653 if (SUCCESS != php_stream_stat_path(test, &ssbi)) {
654 efree(test);
655 continue;
656 }
657 /* mount the file/directory just in time */
658 if (SUCCESS != phar_mount_entry(phar, test, test_len, internal_file, internal_file_len TSRMLS_CC)) {
659 efree(test);
660 goto free_resource;
661 }
662 efree(test);
663 if (SUCCESS != zend_hash_find(&phar->manifest, internal_file, internal_file_len, (void**)&entry)) {
664 goto free_resource;
665 }
666 phar_dostat(phar, entry, ssb, 0 TSRMLS_CC);
667 php_url_free(resource);
668 return SUCCESS;
669 }
670 }
671 }
672 free_resource:
673 php_url_free(resource);
674 return FAILURE;
675 }
676 /* }}} */
677
678 /**
679 * Unlink a file within a phar archive
680 */
phar_wrapper_unlink(php_stream_wrapper * wrapper,const char * url,int options,php_stream_context * context TSRMLS_DC)681 static int phar_wrapper_unlink(php_stream_wrapper *wrapper, const char *url, int options, php_stream_context *context TSRMLS_DC) /* {{{ */
682 {
683 php_url *resource;
684 char *internal_file, *error;
685 int internal_file_len;
686 phar_entry_data *idata;
687 phar_archive_data **pphar;
688 uint host_len;
689
690 if ((resource = phar_parse_url(wrapper, url, "rb", options TSRMLS_CC)) == NULL) {
691 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: unlink failed");
692 return 0;
693 }
694
695 /* we must have at the very least phar://alias.phar/internalfile.php */
696 if (!resource->scheme || !resource->host || !resource->path) {
697 php_url_free(resource);
698 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: invalid url \"%s\"", url);
699 return 0;
700 }
701
702 if (strcasecmp("phar", resource->scheme)) {
703 php_url_free(resource);
704 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: not a phar stream url \"%s\"", url);
705 return 0;
706 }
707
708 host_len = strlen(resource->host);
709 phar_request_initialize(TSRMLS_C);
710
711 if (FAILURE == zend_hash_find(&(PHAR_GLOBALS->phar_fname_map), resource->host, host_len, (void **) &pphar)) {
712 pphar = NULL;
713 }
714 if (PHAR_G(readonly) && (!pphar || !(*pphar)->is_data)) {
715 php_url_free(resource);
716 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: write operations disabled by the php.ini setting phar.readonly");
717 return 0;
718 }
719
720 /* need to copy to strip leading "/", will get touched again */
721 internal_file = estrdup(resource->path + 1);
722 internal_file_len = strlen(internal_file);
723 if (FAILURE == phar_get_entry_data(&idata, resource->host, host_len, internal_file, internal_file_len, "r", 0, &error, 1 TSRMLS_CC)) {
724 /* constraints of fp refcount were not met */
725 if (error) {
726 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "unlink of \"%s\" failed: %s", url, error);
727 efree(error);
728 } else {
729 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "unlink of \"%s\" failed, file does not exist", url);
730 }
731 efree(internal_file);
732 php_url_free(resource);
733 return 0;
734 }
735 if (error) {
736 efree(error);
737 }
738 if (idata->internal_file->fp_refcount > 1) {
739 /* more than just our fp resource is open for this file */
740 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "phar error: \"%s\" in phar \"%s\", has open file pointers, cannot unlink", internal_file, resource->host);
741 efree(internal_file);
742 php_url_free(resource);
743 phar_entry_delref(idata TSRMLS_CC);
744 return 0;
745 }
746 php_url_free(resource);
747 efree(internal_file);
748 phar_entry_remove(idata, &error TSRMLS_CC);
749 if (error) {
750 php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", error);
751 efree(error);
752 }
753 return 1;
754 }
755 /* }}} */
756
phar_wrapper_rename(php_stream_wrapper * wrapper,const char * url_from,const char * url_to,int options,php_stream_context * context TSRMLS_DC)757 static int phar_wrapper_rename(php_stream_wrapper *wrapper, const char *url_from, const char *url_to, int options, php_stream_context *context TSRMLS_DC) /* {{{ */
758 {
759 php_url *resource_from, *resource_to;
760 char *error;
761 phar_archive_data *phar, *pfrom, *pto;
762 phar_entry_info *entry;
763 uint host_len;
764 int is_dir = 0;
765 int is_modified = 0;
766
767 error = NULL;
768
769 if ((resource_from = phar_parse_url(wrapper, url_from, "wb", options|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
770 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid or non-writable url \"%s\"", url_from, url_to, url_from);
771 return 0;
772 }
773 if (SUCCESS != phar_get_archive(&pfrom, resource_from->host, strlen(resource_from->host), NULL, 0, &error TSRMLS_CC)) {
774 pfrom = NULL;
775 if (error) {
776 efree(error);
777 }
778 }
779 if (PHAR_G(readonly) && (!pfrom || !pfrom->is_data)) {
780 php_url_free(resource_from);
781 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: Write operations disabled by the php.ini setting phar.readonly");
782 return 0;
783 }
784
785 if ((resource_to = phar_parse_url(wrapper, url_to, "wb", options|PHP_STREAM_URL_STAT_QUIET TSRMLS_CC)) == NULL) {
786 php_url_free(resource_from);
787 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid or non-writable url \"%s\"", url_from, url_to, url_to);
788 return 0;
789 }
790 if (SUCCESS != phar_get_archive(&pto, resource_to->host, strlen(resource_to->host), NULL, 0, &error TSRMLS_CC)) {
791 if (error) {
792 efree(error);
793 }
794 pto = NULL;
795 }
796 if (PHAR_G(readonly) && (!pto || !pto->is_data)) {
797 php_url_free(resource_from);
798 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: Write operations disabled by the php.ini setting phar.readonly");
799 return 0;
800 }
801
802 if (strcmp(resource_from->host, resource_to->host)) {
803 php_url_free(resource_from);
804 php_url_free(resource_to);
805 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\", not within the same phar archive", url_from, url_to);
806 return 0;
807 }
808
809 /* we must have at the very least phar://alias.phar/internalfile.php */
810 if (!resource_from->scheme || !resource_from->host || !resource_from->path) {
811 php_url_free(resource_from);
812 php_url_free(resource_to);
813 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid url \"%s\"", url_from, url_to, url_from);
814 return 0;
815 }
816
817 if (!resource_to->scheme || !resource_to->host || !resource_to->path) {
818 php_url_free(resource_from);
819 php_url_free(resource_to);
820 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": invalid url \"%s\"", url_from, url_to, url_to);
821 return 0;
822 }
823
824 if (strcasecmp("phar", resource_from->scheme)) {
825 php_url_free(resource_from);
826 php_url_free(resource_to);
827 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": not a phar stream url \"%s\"", url_from, url_to, url_from);
828 return 0;
829 }
830
831 if (strcasecmp("phar", resource_to->scheme)) {
832 php_url_free(resource_from);
833 php_url_free(resource_to);
834 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": not a phar stream url \"%s\"", url_from, url_to, url_to);
835 return 0;
836 }
837
838 host_len = strlen(resource_from->host);
839
840 if (SUCCESS != phar_get_archive(&phar, resource_from->host, host_len, NULL, 0, &error TSRMLS_CC)) {
841 php_url_free(resource_from);
842 php_url_free(resource_to);
843 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": %s", url_from, url_to, error);
844 efree(error);
845 return 0;
846 }
847
848 if (phar->is_persistent && FAILURE == phar_copy_on_write(&phar TSRMLS_CC)) {
849 php_url_free(resource_from);
850 php_url_free(resource_to);
851 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": could not make cached phar writeable", url_from, url_to);
852 return 0;
853 }
854
855 if (SUCCESS == zend_hash_find(&(phar->manifest), resource_from->path+1, strlen(resource_from->path)-1, (void **)&entry)) {
856 phar_entry_info new, *source;
857
858 /* perform rename magic */
859 if (entry->is_deleted) {
860 php_url_free(resource_from);
861 php_url_free(resource_to);
862 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\" from extracted phar archive, source has been deleted", url_from, url_to);
863 return 0;
864 }
865 /* transfer all data over to the new entry */
866 memcpy((void *) &new, (void *) entry, sizeof(phar_entry_info));
867 /* mark the old one for deletion */
868 entry->is_deleted = 1;
869 entry->fp = NULL;
870 entry->metadata = 0;
871 entry->link = entry->tmp = NULL;
872 source = entry;
873
874 /* add to the manifest, and then store the pointer to the new guy in entry */
875 zend_hash_add(&(phar->manifest), resource_to->path+1, strlen(resource_to->path)-1, (void **)&new, sizeof(phar_entry_info), (void **) &entry);
876
877 entry->filename = estrdup(resource_to->path+1);
878 if (FAILURE == phar_copy_entry_fp(source, entry, &error TSRMLS_CC)) {
879 php_url_free(resource_from);
880 php_url_free(resource_to);
881 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": %s", url_from, url_to, error);
882 efree(error);
883 zend_hash_del(&(phar->manifest), entry->filename, strlen(entry->filename));
884 return 0;
885 }
886 is_modified = 1;
887 entry->is_modified = 1;
888 entry->filename_len = strlen(entry->filename);
889 is_dir = entry->is_dir;
890 } else {
891 is_dir = zend_hash_exists(&(phar->virtual_dirs), resource_from->path+1, strlen(resource_from->path)-1);
892 if (!is_dir) {
893 /* file does not exist */
894 php_url_free(resource_from);
895 php_url_free(resource_to);
896 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\" from extracted phar archive, source does not exist", url_from, url_to);
897 return 0;
898
899 }
900 }
901
902 /* Rename directory. Update all nested paths */
903 if (is_dir) {
904 int key_type;
905 char *str_key, *new_str_key;
906 uint key_len, new_key_len;
907 ulong unused;
908 uint from_len = strlen(resource_from->path+1);
909 uint to_len = strlen(resource_to->path+1);
910
911 for (zend_hash_internal_pointer_reset(&phar->manifest);
912 HASH_KEY_NON_EXISTENT != (key_type = zend_hash_get_current_key_ex(&phar->manifest, &str_key, &key_len, &unused, 0, NULL)) &&
913 SUCCESS == zend_hash_get_current_data(&phar->manifest, (void **) &entry);
914 zend_hash_move_forward(&phar->manifest)
915 ) {
916 if (!entry->is_deleted &&
917 key_len > from_len &&
918 memcmp(str_key, resource_from->path+1, from_len) == 0 &&
919 IS_SLASH(str_key[from_len])) {
920
921 new_key_len = key_len + to_len - from_len;
922 new_str_key = emalloc(new_key_len+1);
923 memcpy(new_str_key, resource_to->path + 1, to_len);
924 memcpy(new_str_key + to_len, str_key + from_len, key_len - from_len);
925 new_str_key[new_key_len] = 0;
926
927 is_modified = 1;
928 entry->is_modified = 1;
929 efree(entry->filename);
930 entry->filename = new_str_key;
931 entry->filename_len = new_key_len;
932
933 zend_hash_update_current_key_ex(&phar->manifest, key_type, new_str_key, new_key_len, 0, HASH_UPDATE_KEY_ANYWAY, NULL);
934 }
935 }
936
937 for (zend_hash_internal_pointer_reset(&phar->virtual_dirs);
938 HASH_KEY_NON_EXISTENT != (key_type = zend_hash_get_current_key_ex(&phar->virtual_dirs, &str_key, &key_len, &unused, 0, NULL));
939 zend_hash_move_forward(&phar->virtual_dirs)
940 ) {
941 if (key_len >= from_len &&
942 memcmp(str_key, resource_from->path+1, from_len) == 0 &&
943 (key_len == from_len || IS_SLASH(str_key[from_len]))) {
944
945 new_key_len = key_len + to_len - from_len;
946 new_str_key = emalloc(new_key_len+1);
947 memcpy(new_str_key, resource_to->path + 1, to_len);
948 memcpy(new_str_key + to_len, str_key + from_len, key_len - from_len);
949 new_str_key[new_key_len] = 0;
950
951 zend_hash_update_current_key_ex(&phar->virtual_dirs, key_type, new_str_key, new_key_len, 0, HASH_UPDATE_KEY_ANYWAY, NULL);
952 efree(new_str_key);
953 }
954 }
955
956 for (zend_hash_internal_pointer_reset(&phar->mounted_dirs);
957 HASH_KEY_NON_EXISTENT != (key_type = zend_hash_get_current_key_ex(&phar->mounted_dirs, &str_key, &key_len, &unused, 0, NULL)) &&
958 SUCCESS == zend_hash_get_current_data(&phar->mounted_dirs, (void **) &entry);
959 zend_hash_move_forward(&phar->mounted_dirs)
960 ) {
961 if (key_len >= from_len &&
962 memcmp(str_key, resource_from->path+1, from_len) == 0 &&
963 (key_len == from_len || IS_SLASH(str_key[from_len]))) {
964
965 new_key_len = key_len + to_len - from_len;
966 new_str_key = emalloc(new_key_len+1);
967 memcpy(new_str_key, resource_to->path + 1, to_len);
968 memcpy(new_str_key + to_len, str_key + from_len, key_len - from_len);
969 new_str_key[new_key_len] = 0;
970
971 zend_hash_update_current_key_ex(&phar->mounted_dirs, key_type, new_str_key, new_key_len, 0, HASH_UPDATE_KEY_ANYWAY, NULL);
972 efree(new_str_key);
973 }
974 }
975 }
976
977 if (is_modified) {
978 phar_flush(phar, 0, 0, 0, &error TSRMLS_CC);
979 if (error) {
980 php_url_free(resource_from);
981 php_url_free(resource_to);
982 php_error_docref(NULL TSRMLS_CC, E_WARNING, "phar error: cannot rename \"%s\" to \"%s\": %s", url_from, url_to, error);
983 efree(error);
984 return 0;
985 }
986 }
987
988 php_url_free(resource_from);
989 php_url_free(resource_to);
990
991 return 1;
992 }
993 /* }}} */
994
995 /*
996 * Local variables:
997 * tab-width: 4
998 * c-basic-offset: 4
999 * End:
1000 * vim600: noet sw=4 ts=4 fdm=marker
1001 * vim<600: noet sw=4 ts=4
1002 */
1003
