aboutsummaryrefslogtreecommitdiff
path: root/src/fs/fs_publish.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/fs/fs_publish.c')
-rw-r--r--src/fs/fs_publish.c1624
1 files changed, 0 insertions, 1624 deletions
diff --git a/src/fs/fs_publish.c b/src/fs/fs_publish.c
deleted file mode 100644
index f891f37a1..000000000
--- a/src/fs/fs_publish.c
+++ /dev/null
@@ -1,1624 +0,0 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2009, 2010 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20/**
21 * @file fs/fs_publish.c
22 * @brief publish a file or directory in GNUnet
23 * @see https://gnunet.org/encoding
24 * @author Krista Bennett
25 * @author Christian Grothoff
26 */
27#include "platform.h"
28#include "gnunet_constants.h"
29#include "gnunet_signatures.h"
30#include "gnunet_util_lib.h"
31#include "gnunet_fs_service.h"
32#include "fs_api.h"
33#include "fs_tree.h"
34
35
36/**
37 * Fill in all of the generic fields for
38 * a publish event and call the callback.
39 *
40 * @param pi structure to fill in
41 * @param pc overall publishing context
42 * @param p file information for the file being published
43 * @param offset where in the file are we so far
44 * @return value returned from callback
45 */
46void *
47GNUNET_FS_publish_make_status_ (struct GNUNET_FS_ProgressInfo *pi,
48 struct GNUNET_FS_PublishContext *pc,
49 const struct GNUNET_FS_FileInformation *p,
50 uint64_t offset)
51{
52 pi->value.publish.pc = pc;
53 pi->value.publish.fi = p;
54 pi->value.publish.cctx = p->client_info;
55 pi->value.publish.pctx = (NULL == p->dir) ? NULL : p->dir->client_info;
56 pi->value.publish.filename = p->filename;
57 pi->value.publish.size =
58 (GNUNET_YES == p->is_directory) ? p->data.dir.dir_size :
59 p->data.file.file_size;
60 pi->value.publish.eta =
61 GNUNET_TIME_calculate_eta (p->start_time, offset,
62 pi->value.publish.size);
63 pi->value.publish.completed = offset;
64 pi->value.publish.duration =
65 GNUNET_TIME_absolute_get_duration (p->start_time);
66 pi->value.publish.anonymity = p->bo.anonymity_level;
67 pi->fsh = pc->h;
68 return pc->h->upcb (pc->h->upcb_cls, pi);
69}
70
71
72/**
73 * Cleanup the publish context, we're done with it.
74 *
75 * @param pc struct to clean up
76 */
77static void
78publish_cleanup (struct GNUNET_FS_PublishContext *pc)
79{
80 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
81 "Cleaning up publish context (done!)\n");
82 if (NULL != pc->fhc)
83 {
84 GNUNET_CRYPTO_hash_file_cancel (pc->fhc);
85 pc->fhc = NULL;
86 }
87 GNUNET_FS_file_information_destroy (pc->fi, NULL, NULL);
88 GNUNET_free (pc->nid);
89 GNUNET_free (pc->nuid);
90 GNUNET_free (pc->serialization);
91 if (NULL != pc->dsh)
92 {
93 GNUNET_DATASTORE_disconnect (pc->dsh, GNUNET_NO);
94 pc->dsh = NULL;
95 }
96 if (NULL != pc->mq)
97 {
98 GNUNET_MQ_destroy (pc->mq);
99 pc->mq = NULL;
100 }
101 GNUNET_assert (NULL == pc->upload_task);
102 GNUNET_free (pc);
103}
104
105
106/**
107 * Function called by the datastore API with
108 * the result from the PUT request.
109 *
110 * @param cls the `struct GNUNET_FS_PublishContext *`
111 * @param success #GNUNET_OK on success
112 * @param min_expiration minimum expiration time required for content to be stored
113 * @param msg error message (or NULL)
114 */
115static void
116ds_put_cont (void *cls,
117 int success,
118 struct GNUNET_TIME_Absolute min_expiration,
119 const char *msg)
120{
121 struct GNUNET_FS_PublishContext *pc = cls;
122 struct GNUNET_FS_ProgressInfo pi;
123
124 pc->qre = NULL;
125 if (GNUNET_SYSERR == success)
126 {
127 GNUNET_asprintf (&pc->fi_pos->emsg,
128 _ ("Publishing failed: %s"),
129 msg);
130 pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
131 pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
132 pi.value.publish.specifics.error.message = pc->fi_pos->emsg;
133 pc->fi_pos->client_info =
134 GNUNET_FS_publish_make_status_ (&pi, pc, pc->fi_pos, 0);
135 if ((GNUNET_YES != pc->fi_pos->is_directory) &&
136 (NULL != pc->fi_pos->filename) &&
137 (GNUNET_YES == pc->any_done) &&
138 (GNUNET_YES == pc->fi_pos->data.file.do_index))
139 {
140 /* run unindex to clean up */
141 GNUNET_FS_unindex_start (pc->h,
142 pc->fi_pos->filename,
143 NULL);
144 }
145 return;
146 }
147 pc->any_done = GNUNET_YES;
148 GNUNET_assert (NULL == pc->upload_task);
149 pc->upload_task =
150 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
151 &GNUNET_FS_publish_main_, pc);
152}
153
154
155/**
156 * Generate the callback that signals clients
157 * that a file (or directory) has been completely
158 * published.
159 *
160 * @param p the completed upload
161 * @param pc context of the publication
162 */
163static void
164signal_publish_completion (struct GNUNET_FS_FileInformation *p,
165 struct GNUNET_FS_PublishContext *pc)
166{
167 struct GNUNET_FS_ProgressInfo pi;
168
169 pi.status = GNUNET_FS_STATUS_PUBLISH_COMPLETED;
170 pi.value.publish.eta = GNUNET_TIME_UNIT_ZERO;
171 pi.value.publish.specifics.completed.chk_uri = p->chk_uri;
172 pi.value.publish.specifics.completed.sks_uri = p->sks_uri;
173 p->client_info =
174 GNUNET_FS_publish_make_status_ (&pi, pc, p,
175 p->data.file.file_size);
176}
177
178
179/**
180 * Generate the callback that signals clients
181 * that a file (or directory) has encountered
182 * a problem during publication.
183 *
184 * @param p the upload that had trouble
185 * @param pc context of the publication
186 * @param emsg error message
187 */
188static void
189signal_publish_error (struct GNUNET_FS_FileInformation *p,
190 struct GNUNET_FS_PublishContext *pc,
191 const char *emsg)
192{
193 struct GNUNET_FS_ProgressInfo pi;
194
195 p->emsg = GNUNET_strdup (emsg);
196 pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
197 pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
198 pi.value.publish.specifics.error.message = emsg;
199 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, 0);
200 if ((p->is_directory != GNUNET_YES) &&
201 (NULL != p->filename) &&
202 (GNUNET_YES == pc->any_done) &&
203 (p->data.file.do_index == GNUNET_YES))
204 {
205 /* run unindex to clean up */
206 GNUNET_FS_unindex_start (pc->h,
207 p->filename,
208 NULL);
209 }
210}
211
212
213/**
214 * Datastore returns from reservation cancel request.
215 *
216 * @param cls the `struct GNUNET_FS_PublishContext *`
217 * @param success success code (not used)
218 * @param min_expiration minimum expiration time required for content to be stored
219 * @param msg error message (typically NULL, not used)
220 */
221static void
222finish_release_reserve (void *cls, int success,
223 struct GNUNET_TIME_Absolute min_expiration,
224 const char *msg)
225{
226 struct GNUNET_FS_PublishContext *pc = cls;
227
228 pc->qre = NULL;
229 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
230 "Releasing reserve done!\n");
231 signal_publish_completion (pc->fi, pc);
232 pc->all_done = GNUNET_YES;
233 GNUNET_FS_publish_sync_ (pc);
234}
235
236
237/**
238 * We've finished publishing the SBlock as part of a larger upload.
239 * Check the result and complete the larger upload.
240 *
241 * @param cls the `struct GNUNET_FS_PublishContext *` of the larger upload
242 * @param uri URI of the published SBlock
243 * @param emsg NULL on success, otherwise error message
244 */
245static void
246publish_sblocks_cont (void *cls,
247 const struct GNUNET_FS_Uri *uri,
248 const char *emsg)
249{
250 struct GNUNET_FS_PublishContext *pc = cls;
251
252 pc->sks_pc = NULL;
253 if (NULL != emsg)
254 {
255 signal_publish_error (pc->fi, pc, emsg);
256 GNUNET_FS_publish_sync_ (pc);
257 return;
258 }
259 if (NULL != uri)
260 {
261 /* sks publication, remember namespace URI */
262 pc->fi->sks_uri = GNUNET_FS_uri_dup (uri);
263 }
264 GNUNET_assert (pc->qre == NULL);
265 if ((pc->dsh != NULL) && (pc->rid != 0))
266 {
267 pc->qre =
268 GNUNET_DATASTORE_release_reserve (pc->dsh, pc->rid, UINT_MAX, UINT_MAX,
269 &finish_release_reserve, pc);
270 }
271 else
272 {
273 finish_release_reserve (pc, GNUNET_OK, GNUNET_TIME_UNIT_ZERO_ABS, NULL);
274 }
275}
276
277
278/**
279 * We are almost done publishing the structure,
280 * add SBlocks (if needed).
281 *
282 * @param pc overall upload data
283 */
284static void
285publish_sblock (struct GNUNET_FS_PublishContext *pc)
286{
287 if (NULL != pc->ns)
288 pc->sks_pc = GNUNET_FS_publish_sks (pc->h,
289 pc->ns,
290 pc->nid,
291 pc->nuid,
292 pc->fi->meta,
293 pc->fi->chk_uri,
294 &pc->fi->bo,
295 pc->options,
296 &publish_sblocks_cont, pc);
297 else
298 publish_sblocks_cont (pc, NULL, NULL);
299}
300
301
302/**
303 * We've finished publishing a KBlock as part of a larger upload.
304 * Check the result and continue the larger upload.
305 *
306 * @param cls the `struct GNUNET_FS_PublishContext *`
307 * of the larger upload
308 * @param uri URI of the published blocks
309 * @param emsg NULL on success, otherwise error message
310 */
311static void
312publish_kblocks_cont (void *cls,
313 const struct GNUNET_FS_Uri *uri,
314 const char *emsg)
315{
316 struct GNUNET_FS_PublishContext *pc = cls;
317 struct GNUNET_FS_FileInformation *p = pc->fi_pos;
318
319 pc->ksk_pc = NULL;
320 if (NULL != emsg)
321 {
322 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
323 "Error uploading KSK blocks: %s\n",
324 emsg);
325 signal_publish_error (p, pc, emsg);
326 GNUNET_FS_file_information_sync_ (p);
327 GNUNET_FS_publish_sync_ (pc);
328 GNUNET_assert (NULL == pc->upload_task);
329 pc->upload_task =
330 GNUNET_SCHEDULER_add_with_priority
331 (GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
332 &GNUNET_FS_publish_main_,
333 pc);
334 return;
335 }
336 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
337 "KSK blocks published, moving on to next file\n");
338 if (NULL != p->dir)
339 signal_publish_completion (p, pc);
340 /* move on to next file */
341 if (NULL != p->next)
342 pc->fi_pos = p->next;
343 else
344 pc->fi_pos = p->dir;
345 GNUNET_FS_publish_sync_ (pc);
346 GNUNET_assert (NULL == pc->upload_task);
347 pc->upload_task =
348 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
349 &GNUNET_FS_publish_main_, pc);
350}
351
352
353/**
354 * Function called by the tree encoder to obtain
355 * a block of plaintext data (for the lowest level
356 * of the tree).
357 *
358 * @param cls our publishing context
359 * @param offset identifies which block to get
360 * @param max (maximum) number of bytes to get; returning
361 * fewer will also cause errors
362 * @param buf where to copy the plaintext buffer
363 * @param emsg location to store an error message (on error)
364 * @return number of bytes copied to buf, 0 on error
365 */
366static size_t
367block_reader (void *cls,
368 uint64_t offset,
369 size_t max,
370 void *buf,
371 char **emsg)
372{
373 struct GNUNET_FS_PublishContext *pc = cls;
374 struct GNUNET_FS_FileInformation *p;
375 const char *dd;
376 size_t pt_size;
377
378 p = pc->fi_pos;
379 if (GNUNET_YES == p->is_directory)
380 {
381 pt_size = GNUNET_MIN (max, p->data.dir.dir_size - offset);
382 dd = p->data.dir.dir_data;
383 GNUNET_memcpy (buf, &dd[offset], pt_size);
384 }
385 else
386 {
387 if (UINT64_MAX == offset)
388 {
389 if (&GNUNET_FS_data_reader_file_ == p->data.file.reader)
390 {
391 /* force closing the file to avoid keeping too many files open */
392 p->data.file.reader (p->data.file.reader_cls, offset, 0, NULL, NULL);
393 }
394 return 0;
395 }
396 pt_size = GNUNET_MIN (max, p->data.file.file_size - offset);
397 if (0 == pt_size)
398 return 0; /* calling reader with pt_size==0
399 * might free buf, so don't! */
400 if (pt_size !=
401 p->data.file.reader (p->data.file.reader_cls, offset, pt_size, buf,
402 emsg))
403 return 0;
404 }
405 return pt_size;
406}
407
408
409/**
410 * The tree encoder has finished processing a
411 * file. Call it's finish method and deal with
412 * the final result.
413 *
414 * @param cls our publishing context
415 */
416static void
417encode_cont (void *cls)
418{
419 struct GNUNET_FS_PublishContext *pc = cls;
420 struct GNUNET_FS_FileInformation *p;
421 struct GNUNET_FS_ProgressInfo pi;
422 char *emsg;
423 uint64_t flen;
424
425 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
426 "Finished with tree encoder\n");
427 p = pc->fi_pos;
428 p->chk_uri = GNUNET_FS_tree_encoder_get_uri (p->te);
429 GNUNET_FS_file_information_sync_ (p);
430 GNUNET_FS_tree_encoder_finish (p->te, &emsg);
431 p->te = NULL;
432 if (NULL != emsg)
433 {
434 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
435 "Error during tree walk: %s\n",
436 emsg);
437 GNUNET_asprintf (&p->emsg,
438 _ ("Publishing failed: %s"),
439 emsg);
440 GNUNET_free (emsg);
441 pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
442 pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
443 pi.value.publish.specifics.error.message = p->emsg;
444 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, 0);
445 }
446 else
447 {
448 /* final progress event */
449 GNUNET_assert (NULL != p->chk_uri);
450 flen = GNUNET_FS_uri_chk_get_file_size (p->chk_uri);
451 pi.status = GNUNET_FS_STATUS_PUBLISH_PROGRESS;
452 pi.value.publish.specifics.progress.data = NULL;
453 pi.value.publish.specifics.progress.offset = flen;
454 pi.value.publish.specifics.progress.data_len = 0;
455 pi.value.publish.specifics.progress.depth = GNUNET_FS_compute_depth (flen);
456 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, flen);
457 }
458 /* continue with main */ /* continue with main */
459 GNUNET_assert (NULL == pc->upload_task);
460 pc->upload_task =
461 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
462 &GNUNET_FS_publish_main_, pc);
463}
464
465
466/**
467 * Function called asking for the current (encoded)
468 * block to be processed. After processing the
469 * client should either call #GNUNET_FS_tree_encoder_next
470 * or (on error) #GNUNET_FS_tree_encoder_finish.
471 *
472 * @param cls closure
473 * @param chk content hash key for the block
474 * @param offset offset of the block in the file
475 * @param depth depth of the block in the file, 0 for DBLOCK
476 * @param type type of the block (IBLOCK or DBLOCK)
477 * @param block the (encrypted) block
478 * @param block_size size of @a block (in bytes)
479 */
480static void
481block_proc (void *cls,
482 const struct ContentHashKey *chk,
483 uint64_t offset,
484 unsigned int depth,
485 enum GNUNET_BLOCK_Type type,
486 const void *block,
487 uint16_t block_size)
488{
489 struct GNUNET_FS_PublishContext *pc = cls;
490 struct GNUNET_FS_FileInformation *p;
491 struct OnDemandBlock odb;
492
493 p = pc->fi_pos;
494 if (NULL == pc->dsh)
495 {
496 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
497 "Waiting for datastore connection\n");
498 GNUNET_assert (NULL == pc->upload_task);
499 pc->upload_task =
500 GNUNET_SCHEDULER_add_with_priority
501 (GNUNET_SCHEDULER_PRIORITY_BACKGROUND, &GNUNET_FS_publish_main_, pc);
502 return;
503 }
504
505 if ((GNUNET_YES != p->is_directory) &&
506 (GNUNET_YES == p->data.file.do_index) &&
507 (GNUNET_BLOCK_TYPE_FS_DBLOCK == type))
508 {
509 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
510 "Indexing block `%s' for offset %llu with index size %u\n",
511 GNUNET_h2s (&chk->query),
512 (unsigned long long) offset,
513 (unsigned int) sizeof(struct OnDemandBlock));
514 odb.offset = GNUNET_htonll (offset);
515 odb.file_id = p->data.file.file_id;
516 GNUNET_assert (pc->qre == NULL);
517 pc->qre =
518 GNUNET_DATASTORE_put (pc->dsh,
519 (p->is_directory == GNUNET_YES) ? 0 : pc->rid,
520 &chk->query,
521 sizeof(struct OnDemandBlock),
522 &odb,
523 GNUNET_BLOCK_TYPE_FS_ONDEMAND,
524 p->bo.content_priority,
525 p->bo.anonymity_level,
526 p->bo.replication_level,
527 p->bo.expiration_time,
528 -2, 1,
529 &ds_put_cont, pc);
530 return;
531 }
532 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
533 "Publishing block `%s' for offset %llu with size %u\n",
534 GNUNET_h2s (&chk->query),
535 (unsigned long long) offset,
536 (unsigned int) block_size);
537 GNUNET_assert (pc->qre == NULL);
538 pc->qre =
539 GNUNET_DATASTORE_put (pc->dsh, (p->is_directory == GNUNET_YES) ? 0 :
540 pc->rid,
541 &chk->query,
542 block_size,
543 block,
544 type,
545 p->bo.content_priority,
546 p->bo.anonymity_level,
547 p->bo.replication_level,
548 p->bo.expiration_time,
549 -2, 1,
550 &ds_put_cont,
551 pc);
552}
553
554
555/**
556 * Function called with information about our
557 * progress in computing the tree encoding.
558 *
559 * @param cls closure
560 * @param offset where are we in the file
561 * @param pt_block plaintext of the currently processed block
562 * @param pt_size size of @a pt_block
563 * @param depth depth of the block in the tree, 0 for DBLOCK
564 */
565static void
566progress_proc (void *cls, uint64_t offset,
567 const void *pt_block,
568 size_t pt_size,
569 unsigned int depth)
570{
571 struct GNUNET_FS_PublishContext *pc = cls;
572 struct GNUNET_FS_FileInformation *p;
573 struct GNUNET_FS_FileInformation *par;
574 struct GNUNET_FS_ProgressInfo pi;
575
576 p = pc->fi_pos;
577 pi.status = GNUNET_FS_STATUS_PUBLISH_PROGRESS;
578 pi.value.publish.specifics.progress.data = pt_block;
579 pi.value.publish.specifics.progress.offset = offset;
580 pi.value.publish.specifics.progress.data_len = pt_size;
581 pi.value.publish.specifics.progress.depth = depth;
582 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, offset);
583 if ((0 != depth) ||
584 (GNUNET_YES == p->is_directory))
585 return;
586 while (NULL != (par = p->dir))
587 {
588 p = par;
589 GNUNET_assert (GNUNET_YES == par->is_directory);
590 p->data.dir.contents_completed += pt_size;
591 pi.status = GNUNET_FS_STATUS_PUBLISH_PROGRESS_DIRECTORY;
592 pi.value.publish.specifics.progress_directory.completed =
593 p->data.dir.contents_completed;
594 pi.value.publish.specifics.progress_directory.total =
595 p->data.dir.contents_size;
596 pi.value.publish.specifics.progress_directory.eta =
597 GNUNET_TIME_calculate_eta (p->start_time,
598 p
599 ->data.dir.contents_completed,
600 p
601 ->data.dir.contents_size);
602 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, 0);
603 }
604}
605
606
607/**
608 * We are uploading a file or directory; load (if necessary) the next
609 * block into memory, encrypt it and send it to the FS service. Then
610 * continue with the main task.
611 *
612 * @param pc overall upload data
613 */
614static void
615publish_content (struct GNUNET_FS_PublishContext *pc)
616{
617 struct GNUNET_FS_FileInformation *p;
618 char *emsg;
619 struct GNUNET_FS_DirectoryBuilder *db;
620 struct GNUNET_FS_FileInformation *dirpos;
621 void *raw_data;
622 uint64_t size;
623
624 p = pc->fi_pos;
625 GNUNET_assert (NULL != p);
626 if (NULL == p->te)
627 {
628 if (GNUNET_YES == p->is_directory)
629 {
630 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating directory\n");
631 db = GNUNET_FS_directory_builder_create (p->meta);
632 dirpos = p->data.dir.entries;
633 while (NULL != dirpos)
634 {
635 if (GNUNET_YES == dirpos->is_directory)
636 {
637 raw_data = dirpos->data.dir.dir_data;
638 dirpos->data.dir.dir_data = NULL;
639 }
640 else
641 {
642 raw_data = NULL;
643 if ((dirpos->data.file.file_size < MAX_INLINE_SIZE) &&
644 (dirpos->data.file.file_size > 0))
645 {
646 raw_data = GNUNET_malloc (dirpos->data.file.file_size);
647 emsg = NULL;
648 if (dirpos->data.file.file_size !=
649 dirpos->data.file.reader (dirpos->data.file.reader_cls, 0,
650 dirpos->data.file.file_size, raw_data,
651 &emsg))
652 {
653 GNUNET_free (emsg);
654 GNUNET_free (raw_data);
655 raw_data = NULL;
656 }
657 dirpos->data.file.reader (dirpos->data.file.reader_cls, UINT64_MAX,
658 0, 0, NULL);
659 }
660 }
661 GNUNET_FS_directory_builder_add (db, dirpos->chk_uri, dirpos->meta,
662 raw_data);
663 GNUNET_free (raw_data);
664 dirpos = dirpos->next;
665 }
666 GNUNET_free (p->data.dir.dir_data);
667 p->data.dir.dir_data = NULL;
668 p->data.dir.dir_size = 0;
669 GNUNET_FS_directory_builder_finish (db, &p->data.dir.dir_size,
670 &p->data.dir.dir_data);
671 GNUNET_FS_file_information_sync_ (p);
672 }
673 size = (GNUNET_YES == p->is_directory) ? p->data.dir.dir_size :
674 p->data.file.file_size;
675 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
676 "Creating tree encoder\n");
677 p->te =
678 GNUNET_FS_tree_encoder_create (pc->h, size, pc, &block_reader,
679 &block_proc, &progress_proc,
680 &encode_cont);
681 }
682 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
683 "Processing next block from tree\n");
684 GNUNET_FS_tree_encoder_next (p->te);
685}
686
687
688/**
689 * Check the response from the "fs" service to our 'start index'
690 * request.
691 *
692 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
693 * @param msg the response we got
694 */
695static int
696check_index_start_failed (void *cls,
697 const struct GNUNET_MessageHeader *msg)
698{
699 size_t msize = ntohs (msg->size) - sizeof(*msg);
700 const char *emsg = (const char *) &msg[1];
701
702 if (emsg[msize - sizeof(struct GNUNET_MessageHeader) - 1] != '\0')
703 {
704 GNUNET_break (0);
705 return GNUNET_SYSERR;
706 }
707 return GNUNET_OK;
708}
709
710
711/**
712 * Process the response from the "fs" service to our 'start index'
713 * request.
714 *
715 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
716 * @param msg the response we got
717 */
718static void
719handle_index_start_failed (void *cls,
720 const struct GNUNET_MessageHeader *msg)
721{
722 struct GNUNET_FS_PublishContext *pc = cls;
723 struct GNUNET_FS_FileInformation *p;
724 const char *emsg = (const char *) &msg[1];
725 char *msgtxt;
726
727 GNUNET_MQ_destroy (pc->mq);
728 pc->mq = NULL;
729 p = pc->fi_pos;
730 GNUNET_asprintf (&msgtxt,
731 _ ("Can not index file `%s': %s.\n"),
732 p->filename,
733 gettext (emsg));
734 signal_publish_error (p,
735 pc,
736 msgtxt);
737 GNUNET_free (msgtxt);
738 GNUNET_FS_file_information_sync_ (p);
739 GNUNET_FS_publish_sync_ (pc);
740}
741
742
743/**
744 * Process the response from the "fs" service to our 'start index'
745 * request.
746 *
747 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
748 * @param msg the response we got
749 */
750static void
751handle_index_start_ok (void *cls,
752 const struct GNUNET_MessageHeader *msg)
753{
754 struct GNUNET_FS_PublishContext *pc = cls;
755 struct GNUNET_FS_FileInformation *p;
756
757 GNUNET_MQ_destroy (pc->mq);
758 pc->mq = NULL;
759 p = pc->fi_pos;
760 p->data.file.index_start_confirmed = GNUNET_YES;
761 GNUNET_FS_file_information_sync_ (p);
762 publish_content (pc);
763}
764
765
766/**
767 * Generic error handler, called with the appropriate error code and
768 * the same closure specified at the creation of the message queue.
769 * Not every message queue implementation supports an error handler.
770 *
771 * @param cls closure with the `struct GNUNET_FS_PublishContext *`
772 * @param error error code
773 */
774static void
775index_mq_error_handler (void *cls,
776 enum GNUNET_MQ_Error error)
777{
778 struct GNUNET_FS_PublishContext *pc = cls;
779 struct GNUNET_FS_FileInformation *p;
780
781 if (NULL != pc->mq)
782 {
783 GNUNET_MQ_destroy (pc->mq);
784 pc->mq = NULL;
785 }
786 p = pc->fi_pos;
787 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
788 _ ("Can not index file `%s': %s. Will try to insert instead.\n"),
789 p->filename,
790 _ ("error on index-start request to `fs' service"));
791 p->data.file.do_index = GNUNET_NO;
792 GNUNET_FS_file_information_sync_ (p);
793 publish_content (pc);
794}
795
796
797/**
798 * Function called once the hash computation over an
799 * indexed file has completed.
800 *
801 * @param cls closure, our publishing context
802 * @param res resulting hash, NULL on error
803 */
804static void
805hash_for_index_cb (void *cls,
806 const struct GNUNET_HashCode *res)
807{
808 struct GNUNET_FS_PublishContext *pc = cls;
809 struct GNUNET_MQ_MessageHandler handlers[] = {
810 GNUNET_MQ_hd_fixed_size (index_start_ok,
811 GNUNET_MESSAGE_TYPE_FS_INDEX_START_OK,
812 struct GNUNET_MessageHeader,
813 pc),
814 GNUNET_MQ_hd_var_size (index_start_failed,
815 GNUNET_MESSAGE_TYPE_FS_INDEX_START_FAILED,
816 struct GNUNET_MessageHeader,
817 pc),
818 GNUNET_MQ_handler_end ()
819 };
820 struct GNUNET_FS_FileInformation *p;
821 struct GNUNET_MQ_Envelope *env;
822 struct IndexStartMessage *ism;
823 size_t slen;
824 uint64_t dev;
825 uint64_t ino;
826 char *fn;
827
828 pc->fhc = NULL;
829 p = pc->fi_pos;
830 if (NULL == res)
831 {
832 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
833 _ (
834 "Can not index file `%s': %s. Will try to insert instead.\n"),
835 p->filename,
836 _ ("failed to compute hash"));
837 p->data.file.do_index = GNUNET_NO;
838 GNUNET_FS_file_information_sync_ (p);
839 publish_content (pc);
840 return;
841 }
842 if (GNUNET_YES == p->data.file.index_start_confirmed)
843 {
844 publish_content (pc);
845 return;
846 }
847 fn = GNUNET_STRINGS_filename_expand (p->filename);
848 GNUNET_assert (fn != NULL);
849 slen = strlen (fn) + 1;
850 if (slen >=
851 GNUNET_MAX_MESSAGE_SIZE - sizeof(struct IndexStartMessage))
852 {
853 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
854 _
855 ("Can not index file `%s': %s. Will try to insert instead.\n"),
856 fn, _ ("filename too long"));
857 GNUNET_free (fn);
858 p->data.file.do_index = GNUNET_NO;
859 GNUNET_FS_file_information_sync_ (p);
860 publish_content (pc);
861 return;
862 }
863 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
864 "Hash of indexed file `%s' is `%s'\n",
865 p->filename,
866 GNUNET_h2s (res));
867 if (0 != (pc->options & GNUNET_FS_PUBLISH_OPTION_SIMULATE_ONLY))
868 {
869 p->data.file.file_id = *res;
870 p->data.file.have_hash = GNUNET_YES;
871 p->data.file.index_start_confirmed = GNUNET_YES;
872 GNUNET_FS_file_information_sync_ (p);
873 publish_content (pc);
874 GNUNET_free (fn);
875 return;
876 }
877 pc->mq = GNUNET_CLIENT_connect (pc->h->cfg,
878 "fs",
879 handlers,
880 &index_mq_error_handler,
881 pc);
882 if (NULL == pc->mq)
883 {
884 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
885 _ (
886 "Can not index file `%s': %s. Will try to insert instead.\n"),
887 p->filename,
888 _ ("could not connect to `fs' service"));
889 p->data.file.do_index = GNUNET_NO;
890 publish_content (pc);
891 GNUNET_free (fn);
892 return;
893 }
894 if (p->data.file.have_hash != GNUNET_YES)
895 {
896 p->data.file.file_id = *res;
897 p->data.file.have_hash = GNUNET_YES;
898 GNUNET_FS_file_information_sync_ (p);
899 }
900 env = GNUNET_MQ_msg_extra (ism,
901 slen,
902 GNUNET_MESSAGE_TYPE_FS_INDEX_START);
903 if (GNUNET_OK ==
904 GNUNET_DISK_file_get_identifiers (p->filename,
905 &dev,
906 &ino))
907 {
908 ism->device = GNUNET_htonll (dev);
909 ism->inode = GNUNET_htonll (ino);
910 }
911 else
912 {
913 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
914 _ ("Failed to get file identifiers for `%s'\n"),
915 p->filename);
916 }
917 ism->file_id = *res;
918 GNUNET_memcpy (&ism[1],
919 fn,
920 slen);
921 GNUNET_free (fn);
922 GNUNET_MQ_send (pc->mq,
923 env);
924}
925
926
927/**
928 * We've computed the CHK/LOC URI, now publish the KSKs (if applicable).
929 *
930 * @param pc publishing context to do this for
931 */
932static void
933publish_kblocks (struct GNUNET_FS_PublishContext *pc)
934{
935 struct GNUNET_FS_FileInformation *p;
936
937 p = pc->fi_pos;
938 /* upload of "p" complete, publish KBlocks! */
939 if (NULL != p->keywords)
940 {
941 pc->ksk_pc = GNUNET_FS_publish_ksk (pc->h,
942 p->keywords,
943 p->meta,
944 p->chk_uri,
945 &p->bo,
946 pc->options,
947 &publish_kblocks_cont,
948 pc);
949 }
950 else
951 {
952 publish_kblocks_cont (pc, p->chk_uri, NULL);
953 }
954}
955
956
957/**
958 * Process the response from the "fs" service to our LOC sign request.
959 *
960 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
961 * @param sig the response we got
962 */
963static void
964handle_signature_response (void *cls,
965 const struct ResponseLocSignatureMessage *sig)
966{
967 struct GNUNET_FS_PublishContext *pc = cls;
968 struct GNUNET_FS_FileInformation *p;
969
970 p = pc->fi_pos;
971 p->chk_uri->type = GNUNET_FS_URI_LOC;
972 /* p->data.loc.fi kept from CHK before */
973 p->chk_uri->data.loc.peer = sig->peer;
974 p->chk_uri->data.loc.expirationTime
975 = GNUNET_TIME_absolute_ntoh (sig->expiration_time);
976 p->chk_uri->data.loc.contentSignature = sig->signature;
977 GNUNET_FS_file_information_sync_ (p);
978 GNUNET_FS_publish_sync_ (pc);
979 publish_kblocks (pc);
980}
981
982
983/**
984 * Generic error handler, called with the appropriate error code and
985 * the same closure specified at the creation of the message queue.
986 * Not every message queue implementation supports an error handler.
987 *
988 * @param cls closure with the `struct GNUNET_FS_PublishContext *`
989 * @param error error code
990 */
991static void
992loc_mq_error_handler (void *cls,
993 enum GNUNET_MQ_Error error)
994{
995 struct GNUNET_FS_PublishContext *pc = cls;
996
997 if (NULL != pc->mq)
998 {
999 GNUNET_MQ_destroy (pc->mq);
1000 pc->mq = NULL;
1001 }
1002 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1003 _ ("Can not create LOC URI. Will continue with CHK instead.\n"));
1004 publish_kblocks (pc);
1005}
1006
1007
1008/**
1009 * We're publishing without anonymity. Contact the FS service
1010 * to create a signed LOC URI for further processing, then
1011 * continue with KSKs.
1012 *
1013 * @param pc the publishing context do to this for
1014 */
1015static void
1016create_loc_uri (struct GNUNET_FS_PublishContext *pc)
1017{
1018 struct GNUNET_MQ_MessageHandler handlers[] = {
1019 GNUNET_MQ_hd_fixed_size (signature_response,
1020 GNUNET_MESSAGE_TYPE_FS_REQUEST_LOC_SIGNATURE,
1021 struct ResponseLocSignatureMessage,
1022 pc),
1023 GNUNET_MQ_handler_end ()
1024 };
1025 struct GNUNET_MQ_Envelope *env;
1026 struct RequestLocSignatureMessage *req;
1027 struct GNUNET_FS_FileInformation *p;
1028
1029 if (NULL != pc->mq)
1030 GNUNET_MQ_destroy (pc->mq);
1031 pc->mq = GNUNET_CLIENT_connect (pc->h->cfg,
1032 "fs",
1033 handlers,
1034 &loc_mq_error_handler,
1035 pc);
1036 if (NULL == pc->mq)
1037 {
1038 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1039 _ (
1040 "Can not create LOC URI. Will continue with CHK instead.\n"));
1041 publish_kblocks (pc);
1042 return;
1043 }
1044 p = pc->fi_pos;
1045 env = GNUNET_MQ_msg (req,
1046 GNUNET_MESSAGE_TYPE_FS_REQUEST_LOC_SIGN);
1047 req->purpose = htonl (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT);
1048 req->expiration_time = GNUNET_TIME_absolute_hton (p->bo.expiration_time);
1049 req->chk = p->chk_uri->data.chk.chk;
1050 req->file_length = GNUNET_htonll (p->chk_uri->data.chk.file_length);
1051 GNUNET_MQ_send (pc->mq,
1052 env);
1053}
1054
1055
1056/**
1057 * Main function that performs the upload.
1058 *
1059 * @param cls `struct GNUNET_FS_PublishContext *` identifies the upload
1060 */
1061void
1062GNUNET_FS_publish_main_ (void *cls)
1063{
1064 struct GNUNET_FS_PublishContext *pc = cls;
1065 struct GNUNET_FS_ProgressInfo pi;
1066 struct GNUNET_FS_FileInformation *p;
1067 char *fn;
1068
1069 pc->upload_task = NULL;
1070 p = pc->fi_pos;
1071 if (NULL == p)
1072 {
1073 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1074 "Publishing complete, now publishing SKS and KSK blocks.\n");
1075 /* upload of entire hierarchy complete,
1076 * publish namespace entries */
1077 GNUNET_FS_publish_sync_ (pc);
1078 publish_sblock (pc);
1079 return;
1080 }
1081 /* find starting position */
1082 while ((GNUNET_YES == p->is_directory) &&
1083 (NULL != p->data.dir.entries) &&
1084 (NULL == p->emsg) &&
1085 (NULL == p->data.dir.entries->chk_uri))
1086 {
1087 p = p->data.dir.entries;
1088 pc->fi_pos = p;
1089 GNUNET_FS_publish_sync_ (pc);
1090 }
1091 /* abort on error */
1092 if (NULL != p->emsg)
1093 {
1094 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1095 "Error uploading: %s\n",
1096 p->emsg);
1097 /* error with current file, abort all
1098 * related files as well! */
1099 while (NULL != p->dir)
1100 {
1101 fn = GNUNET_CONTAINER_meta_data_get_by_type (p->meta,
1102 EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME);
1103 p = p->dir;
1104 if (fn != NULL)
1105 {
1106 GNUNET_asprintf (&p->emsg,
1107 _ ("Recursive upload failed at `%s': %s"),
1108 fn,
1109 p->emsg);
1110 GNUNET_free (fn);
1111 }
1112 else
1113 {
1114 GNUNET_asprintf (&p->emsg,
1115 _ ("Recursive upload failed: %s"),
1116 p->emsg);
1117 }
1118 pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
1119 pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
1120 pi.value.publish.specifics.error.message = p->emsg;
1121 p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, 0);
1122 }
1123 pc->all_done = GNUNET_YES;
1124 GNUNET_FS_publish_sync_ (pc);
1125 return;
1126 }
1127 /* handle completion */
1128 if (NULL != p->chk_uri)
1129 {
1130 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1131 "File upload complete, now publishing KSK blocks.\n");
1132 GNUNET_FS_publish_sync_ (pc);
1133
1134 if ((0 == p->bo.anonymity_level) &&
1135 (GNUNET_YES !=
1136 GNUNET_FS_uri_test_loc (p->chk_uri)))
1137 {
1138 /* zero anonymity, box CHK URI in LOC URI */
1139 create_loc_uri (pc);
1140 }
1141 else
1142 {
1143 publish_kblocks (pc);
1144 }
1145 return;
1146 }
1147 if ((GNUNET_YES != p->is_directory) && (p->data.file.do_index))
1148 {
1149 if (NULL == p->filename)
1150 {
1151 p->data.file.do_index = GNUNET_NO;
1152 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1153 _ (
1154 "Can not index file `%s': %s. Will try to insert instead.\n"),
1155 "<no-name>",
1156 _ ("needs to be an actual file"));
1157 GNUNET_FS_file_information_sync_ (p);
1158 publish_content (pc);
1159 return;
1160 }
1161 if (p->data.file.have_hash)
1162 {
1163 hash_for_index_cb (pc, &p->data.file.file_id);
1164 }
1165 else
1166 {
1167 p->start_time = GNUNET_TIME_absolute_get ();
1168 pc->fhc =
1169 GNUNET_CRYPTO_hash_file (GNUNET_SCHEDULER_PRIORITY_IDLE, p->filename,
1170 HASHING_BLOCKSIZE, &hash_for_index_cb, pc);
1171 }
1172 return;
1173 }
1174 publish_content (pc);
1175}
1176
1177
1178/**
1179 * Signal the FS's progress function that we are starting
1180 * an upload.
1181 *
1182 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
1183 * @param fi the entry in the publish-structure
1184 * @param length length of the file or directory
1185 * @param meta metadata for the file or directory (can be modified)
1186 * @param uri pointer to the keywords that will be used for this entry (can be modified)
1187 * @param bo block options
1188 * @param do_index should we index?
1189 * @param client_info pointer to client context set upon creation (can be modified)
1190 * @return #GNUNET_OK to continue (always)
1191 */
1192static int
1193fip_signal_start (void *cls,
1194 struct GNUNET_FS_FileInformation *fi,
1195 uint64_t length,
1196 struct GNUNET_CONTAINER_MetaData *meta,
1197 struct GNUNET_FS_Uri **uri,
1198 struct GNUNET_FS_BlockOptions *bo,
1199 int *do_index,
1200 void **client_info)
1201{
1202 struct GNUNET_FS_PublishContext *pc = cls;
1203 struct GNUNET_FS_ProgressInfo pi;
1204 unsigned int kc;
1205 uint64_t left;
1206
1207 if (GNUNET_YES == pc->skip_next_fi_callback)
1208 {
1209 pc->skip_next_fi_callback = GNUNET_NO;
1210 return GNUNET_OK;
1211 }
1212 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1213 "Starting publish operation\n");
1214 if (*do_index)
1215 {
1216 /* space for on-demand blocks */
1217 pc->reserve_space +=
1218 ((length + DBLOCK_SIZE
1219 - 1) / DBLOCK_SIZE) * sizeof(struct OnDemandBlock);
1220 }
1221 else
1222 {
1223 /* space for DBlocks */
1224 pc->reserve_space += length;
1225 }
1226 /* entries for IBlocks and DBlocks, space for IBlocks */
1227 left = length;
1228 while (1)
1229 {
1230 left = (left + DBLOCK_SIZE - 1) / DBLOCK_SIZE;
1231 pc->reserve_entries += left;
1232 if (left <= 1)
1233 break;
1234 left = left * sizeof(struct ContentHashKey);
1235 pc->reserve_space += left;
1236 }
1237 pc->reserve_entries++;
1238 /* entries and space for keywords */
1239 if (NULL != *uri)
1240 {
1241 kc = GNUNET_FS_uri_ksk_get_keyword_count (*uri);
1242 pc->reserve_entries += kc;
1243 pc->reserve_space += GNUNET_MAX_MESSAGE_SIZE * kc;
1244 }
1245 pi.status = GNUNET_FS_STATUS_PUBLISH_START;
1246 *client_info = GNUNET_FS_publish_make_status_ (&pi, pc, fi, 0);
1247 GNUNET_FS_file_information_sync_ (fi);
1248 if ((fi->is_directory) && (fi->dir != NULL))
1249 {
1250 /* We are a directory, and we are not top-level; process entries in directory */
1251 pc->skip_next_fi_callback = GNUNET_YES;
1252 GNUNET_FS_file_information_inspect (fi, &fip_signal_start, pc);
1253 }
1254 return GNUNET_OK;
1255}
1256
1257
1258/**
1259 * Actually signal the FS's progress function that we are suspending
1260 * an upload.
1261 *
1262 * @param fi the entry in the publish-structure
1263 * @param pc the publish context of which a file is being suspended
1264 */
1265static void
1266suspend_operation (struct GNUNET_FS_FileInformation *fi,
1267 struct GNUNET_FS_PublishContext *pc)
1268{
1269 struct GNUNET_FS_ProgressInfo pi;
1270 uint64_t off;
1271
1272 if (NULL != pc->ksk_pc)
1273 {
1274 GNUNET_FS_publish_ksk_cancel (pc->ksk_pc);
1275 pc->ksk_pc = NULL;
1276 }
1277 if (NULL != pc->sks_pc)
1278 {
1279 GNUNET_FS_publish_sks_cancel (pc->sks_pc);
1280 pc->sks_pc = NULL;
1281 }
1282 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1283 "Suspending publish operation\n");
1284 GNUNET_free (fi->serialization);
1285 fi->serialization = NULL;
1286 off = (NULL == fi->chk_uri) ? 0 : (GNUNET_YES == fi->is_directory) ?
1287 fi->data.dir.dir_size : fi->data.file.file_size;
1288 pi.status = GNUNET_FS_STATUS_PUBLISH_SUSPEND;
1289 GNUNET_break (NULL == GNUNET_FS_publish_make_status_ (&pi, pc, fi, off));
1290 if (NULL != pc->qre)
1291 {
1292 GNUNET_DATASTORE_cancel (pc->qre);
1293 pc->qre = NULL;
1294 }
1295 if (NULL != pc->dsh)
1296 {
1297 GNUNET_DATASTORE_disconnect (pc->dsh, GNUNET_NO);
1298 pc->dsh = NULL;
1299 }
1300 pc->rid = 0;
1301}
1302
1303
1304/**
1305 * Signal the FS's progress function that we are suspending
1306 * an upload. Performs the recursion.
1307 *
1308 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
1309 * @param fi the entry in the publish-structure
1310 * @param length length of the file or directory
1311 * @param meta metadata for the file or directory (can be modified)
1312 * @param uri pointer to the keywords that will be used for this entry (can be modified)
1313 * @param bo block options
1314 * @param do_index should we index?
1315 * @param client_info pointer to client context set upon creation (can be modified)
1316 * @return #GNUNET_OK to continue (always)
1317 */
1318static int
1319fip_signal_suspend (void *cls,
1320 struct GNUNET_FS_FileInformation *fi,
1321 uint64_t length,
1322 struct GNUNET_CONTAINER_MetaData *meta,
1323 struct GNUNET_FS_Uri **uri,
1324 struct GNUNET_FS_BlockOptions *bo,
1325 int *do_index,
1326 void **client_info)
1327{
1328 struct GNUNET_FS_PublishContext *pc = cls;
1329
1330 if (GNUNET_YES == pc->skip_next_fi_callback)
1331 {
1332 pc->skip_next_fi_callback = GNUNET_NO;
1333 return GNUNET_OK;
1334 }
1335 if (GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (meta))
1336 {
1337 /* process entries in directory */
1338 pc->skip_next_fi_callback = GNUNET_YES;
1339 GNUNET_FS_file_information_inspect (fi, &fip_signal_suspend, pc);
1340 }
1341 suspend_operation (fi, pc);
1342 *client_info = NULL;
1343 return GNUNET_OK;
1344}
1345
1346
1347/**
1348 * Create SUSPEND event for the given publish operation
1349 * and then clean up our state (without stop signal).
1350 *
1351 * @param cls the `struct GNUNET_FS_PublishContext` to signal for
1352 */
1353void
1354GNUNET_FS_publish_signal_suspend_ (void *cls)
1355{
1356 struct GNUNET_FS_PublishContext *pc = cls;
1357
1358 if (NULL != pc->upload_task)
1359 {
1360 GNUNET_SCHEDULER_cancel (pc->upload_task);
1361 pc->upload_task = NULL;
1362 }
1363 pc->skip_next_fi_callback = GNUNET_YES;
1364 GNUNET_FS_file_information_inspect (pc->fi, &fip_signal_suspend, pc);
1365 suspend_operation (pc->fi, pc);
1366 GNUNET_FS_end_top (pc->h, pc->top);
1367 pc->top = NULL;
1368 publish_cleanup (pc);
1369}
1370
1371
1372/**
1373 * We have gotten a reply for our space reservation request.
1374 * Either fail (insufficient space) or start publishing for good.
1375 *
1376 * @param cls the `struct GNUNET_FS_PublishContext *`
1377 * @param success positive reservation ID on success
1378 * @param min_expiration minimum expiration time required for content to be stored
1379 * @param msg error message on error, otherwise NULL
1380 */
1381static void
1382finish_reserve (void *cls,
1383 int success,
1384 struct GNUNET_TIME_Absolute min_expiration,
1385 const char *msg)
1386{
1387 struct GNUNET_FS_PublishContext *pc = cls;
1388
1389 pc->qre = NULL;
1390 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1391 "Reservation complete (%d)!\n",
1392 success);
1393 if ((msg != NULL) || (success <= 0))
1394 {
1395 GNUNET_asprintf (&pc->fi->emsg,
1396 _ ("Datastore failure: %s"),
1397 msg);
1398 signal_publish_error (pc->fi, pc, pc->fi->emsg);
1399 return;
1400 }
1401 pc->rid = success;
1402 GNUNET_assert (NULL == pc->upload_task);
1403 pc->upload_task =
1404 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
1405 &GNUNET_FS_publish_main_, pc);
1406}
1407
1408
1409/**
1410 * Calculate the total size of all of the files in the directory structure.
1411 *
1412 * @param fi file structure to traverse
1413 */
1414static uint64_t
1415compute_contents_size (struct GNUNET_FS_FileInformation *fi)
1416{
1417 struct GNUNET_FS_FileInformation *ent;
1418
1419 if (GNUNET_YES != fi->is_directory)
1420 return fi->data.file.file_size;
1421 fi->data.dir.contents_size = 0;
1422 for (ent = fi->data.dir.entries; NULL != ent; ent = ent->next)
1423 fi->data.dir.contents_size += compute_contents_size (ent);
1424 return fi->data.dir.contents_size;
1425}
1426
1427
1428/**
1429 * Publish a file or directory.
1430 *
1431 * @param h handle to the file sharing subsystem
1432 * @param fi information about the file or directory structure to publish
1433 * @param ns namespace to publish the file in, NULL for no namespace
1434 * @param nid identifier to use for the published content in the namespace
1435 * (can be NULL, must be NULL if namespace is NULL)
1436 * @param nuid update-identifier that will be used for future updates
1437 * (can be NULL, must be NULL if namespace or nid is NULL)
1438 * @param options options for the publication
1439 * @return context that can be used to control the publish operation
1440 */
1441struct GNUNET_FS_PublishContext *
1442GNUNET_FS_publish_start (struct GNUNET_FS_Handle *h,
1443 struct GNUNET_FS_FileInformation *fi,
1444 const struct GNUNET_CRYPTO_EcdsaPrivateKey *ns,
1445 const char *nid,
1446 const char *nuid,
1447 enum GNUNET_FS_PublishOptions options)
1448{
1449 struct GNUNET_FS_PublishContext *ret;
1450 struct GNUNET_DATASTORE_Handle *dsh;
1451
1452 GNUNET_assert (NULL != h);
1453 compute_contents_size (fi);
1454 if (0 == (options & GNUNET_FS_PUBLISH_OPTION_SIMULATE_ONLY))
1455 {
1456 dsh = GNUNET_DATASTORE_connect (h->cfg);
1457 if (NULL == dsh)
1458 return NULL;
1459 }
1460 else
1461 {
1462 dsh = NULL;
1463 }
1464 ret = GNUNET_new (struct GNUNET_FS_PublishContext);
1465 ret->dsh = dsh;
1466 ret->h = h;
1467 ret->fi = fi;
1468 if (NULL != ns)
1469 {
1470 ret->ns = GNUNET_new (struct GNUNET_CRYPTO_EcdsaPrivateKey);
1471 *ret->ns = *ns;
1472 GNUNET_assert (NULL != nid);
1473 ret->nid = GNUNET_strdup (nid);
1474 if (NULL != nuid)
1475 ret->nuid = GNUNET_strdup (nuid);
1476 }
1477 ret->options = options;
1478 /* signal start */
1479 GNUNET_FS_file_information_inspect (ret->fi, &fip_signal_start, ret);
1480 ret->fi_pos = ret->fi;
1481 ret->top = GNUNET_FS_make_top (h, &GNUNET_FS_publish_signal_suspend_, ret);
1482 GNUNET_FS_publish_sync_ (ret);
1483 if (NULL != ret->dsh)
1484 {
1485 GNUNET_assert (NULL == ret->qre);
1486 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1487 _ (
1488 "Reserving space for %u entries and %llu bytes for publication\n"),
1489 (unsigned int) ret->reserve_entries,
1490 (unsigned long long) ret->reserve_space);
1491 ret->qre =
1492 GNUNET_DATASTORE_reserve (ret->dsh, ret->reserve_space,
1493 ret->reserve_entries,
1494 &finish_reserve,
1495 ret);
1496 }
1497 else
1498 {
1499 GNUNET_assert (NULL == ret->upload_task);
1500 ret->upload_task =
1501 GNUNET_SCHEDULER_add_with_priority
1502 (GNUNET_SCHEDULER_PRIORITY_BACKGROUND, &GNUNET_FS_publish_main_, ret);
1503 }
1504 return ret;
1505}
1506
1507
1508/**
1509 * Signal the FS's progress function that we are stopping
1510 * an upload.
1511 *
1512 * @param cls closure (of type `struct GNUNET_FS_PublishContext *`)
1513 * @param fi the entry in the publish-structure
1514 * @param length length of the file or directory
1515 * @param meta metadata for the file or directory (can be modified)
1516 * @param uri pointer to the keywords that will be used for this entry (can be modified)
1517 * @param bo block options (can be modified)
1518 * @param do_index should we index?
1519 * @param client_info pointer to client context set upon creation (can be modified)
1520 * @return #GNUNET_OK to continue (always)
1521 */
1522static int
1523fip_signal_stop (void *cls,
1524 struct GNUNET_FS_FileInformation *fi,
1525 uint64_t length,
1526 struct GNUNET_CONTAINER_MetaData *meta,
1527 struct GNUNET_FS_Uri **uri,
1528 struct GNUNET_FS_BlockOptions *bo,
1529 int *do_index, void **client_info)
1530{
1531 struct GNUNET_FS_PublishContext *pc = cls;
1532 struct GNUNET_FS_ProgressInfo pi;
1533 uint64_t off;
1534
1535 if (GNUNET_YES == pc->skip_next_fi_callback)
1536 {
1537 pc->skip_next_fi_callback = GNUNET_NO;
1538 return GNUNET_OK;
1539 }
1540 if (GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (meta))
1541 {
1542 /* process entries in directory first */
1543 pc->skip_next_fi_callback = GNUNET_YES;
1544 GNUNET_FS_file_information_inspect (fi, &fip_signal_stop, pc);
1545 }
1546 if (NULL != fi->serialization)
1547 {
1548 GNUNET_FS_remove_sync_file_ (pc->h, GNUNET_FS_SYNC_PATH_FILE_INFO,
1549 fi->serialization);
1550 GNUNET_free (fi->serialization);
1551 fi->serialization = NULL;
1552 }
1553 off = (fi->chk_uri == NULL) ? 0 : length;
1554 pi.status = GNUNET_FS_STATUS_PUBLISH_STOPPED;
1555 GNUNET_break (NULL == GNUNET_FS_publish_make_status_ (&pi, pc, fi, off));
1556 *client_info = NULL;
1557 return GNUNET_OK;
1558}
1559
1560
1561/**
1562 * Stop an upload. Will abort incomplete uploads (but
1563 * not remove blocks that have already been published) or
1564 * simply clean up the state for completed uploads.
1565 * Must NOT be called from within the event callback!
1566 *
1567 * @param pc context for the upload to stop
1568 */
1569void
1570GNUNET_FS_publish_stop (struct GNUNET_FS_PublishContext *pc)
1571{
1572 struct GNUNET_FS_ProgressInfo pi;
1573 uint64_t off;
1574
1575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1576 "Publish stop called\n");
1577 GNUNET_FS_end_top (pc->h, pc->top);
1578 if (NULL != pc->ksk_pc)
1579 {
1580 GNUNET_FS_publish_ksk_cancel (pc->ksk_pc);
1581 pc->ksk_pc = NULL;
1582 }
1583 if (NULL != pc->sks_pc)
1584 {
1585 GNUNET_FS_publish_sks_cancel (pc->sks_pc);
1586 pc->sks_pc = NULL;
1587 }
1588 if (NULL != pc->upload_task)
1589 {
1590 GNUNET_SCHEDULER_cancel (pc->upload_task);
1591 pc->upload_task = NULL;
1592 }
1593 pc->skip_next_fi_callback = GNUNET_YES;
1594 GNUNET_FS_file_information_inspect (pc->fi, &fip_signal_stop, pc);
1595
1596 if (NULL != pc->fi->serialization)
1597 {
1598 GNUNET_FS_remove_sync_file_ (pc->h, GNUNET_FS_SYNC_PATH_FILE_INFO,
1599 pc->fi->serialization);
1600 GNUNET_free (pc->fi->serialization);
1601 pc->fi->serialization = NULL;
1602 }
1603 off = (NULL == pc->fi->chk_uri) ? 0 : GNUNET_ntohll (
1604 pc->fi->chk_uri->data.chk.file_length);
1605
1606 if (NULL != pc->serialization)
1607 {
1608 GNUNET_FS_remove_sync_file_ (pc->h, GNUNET_FS_SYNC_PATH_MASTER_PUBLISH,
1609 pc->serialization);
1610 GNUNET_free (pc->serialization);
1611 pc->serialization = NULL;
1612 }
1613 if (NULL != pc->qre)
1614 {
1615 GNUNET_DATASTORE_cancel (pc->qre);
1616 pc->qre = NULL;
1617 }
1618 pi.status = GNUNET_FS_STATUS_PUBLISH_STOPPED;
1619 GNUNET_break (NULL == GNUNET_FS_publish_make_status_ (&pi, pc, pc->fi, off));
1620 publish_cleanup (pc);
1621}
1622
1623
1624/* end of fs_publish.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 23:48:07 +0000