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Merge pull request #4159 from owncloud/fix_3490

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csync updater: Handle file firewall reply codes correctly: Ignore the files.

Fixes #3490
This commit is contained in:
Klaas Freitag 2015-11-18 16:55:53 +01:00
commit b0c29d5c66
5 changed files with 46 additions and 16 deletions
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3
csync/src/csync.h
View file

@ -102,7 +102,8 @@ enum csync_status_codes_e {
CYSNC_STATUS_FILE_LOCKED_OR_OPEN,
CSYNC_STATUS_INDIVIDUAL_EXCLUDE_HIDDEN,
CSYNC_STATUS_INVALID_CHARACTERS,
CSYNC_STATUS_INDIVIDUAL_STAT_FAILED
CSYNC_STATUS_INDIVIDUAL_STAT_FAILED,
CSYNC_STATUS_FORBIDDEN
};
typedef enum csync_status_codes_e CSYNC_STATUS;

1
csync/src/csync_macros.h
View file

@ -46,6 +46,7 @@
#define ERRNO_SERVICE_UNAVAILABLE CSYNC_CUSTOM_ERRNO_BASE+14
#define ERRNO_USER_ABORT CSYNC_CUSTOM_ERRNO_BASE+16
#define ERRNO_STORAGE_UNAVAILABLE CSYNC_CUSTOM_ERRNO_BASE+17
#define ERRNO_FORBIDDEN CSYNC_CUSTOM_ERRNO_BASE+18
#endif /* _CSYNC_MACROS_H */
/* vim: set ft=c.doxygen ts=8 sw=2 et cindent: */

46
csync/src/csync_update.c
View file

@ -573,6 +573,26 @@ static bool fill_tree_from_db(CSYNC *ctx, const char *uri)
return true;
}
/* set the current item to an ignored state.
* If the item is set to ignored, the update phase continues, ie. its not a hard error */
static bool mark_current_item_ignored( CSYNC *ctx, csync_file_stat_t *previous_fs, CSYNC_STATUS status )
{
if(!ctx) {
return false;
}
if (ctx->current_fs) {
ctx->current_fs->instruction = CSYNC_INSTRUCTION_IGNORE;
ctx->current_fs->error_status = status;
/* If a directory has ignored files, put the flag on the parent directory as well */
if( previous_fs ) {
previous_fs->has_ignored_files = true;
}
return true;
}
return false;
}
/* File tree walker */
int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
unsigned int depth) {
@ -625,13 +645,8 @@ int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
/* permission denied */
ctx->status_code = csync_errno_to_status(errno, CSYNC_STATUS_OPENDIR_ERROR);
if (errno == EACCES) {
if (ctx->current_fs) {
ctx->current_fs->instruction = CSYNC_INSTRUCTION_IGNORE;
ctx->current_fs->error_status = CSYNC_STATUS_PERMISSION_DENIED;
/* If a directory has ignored files, put the flag on the parent directory as well */
if( previous_fs ) {
previous_fs->has_ignored_files = true;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Permission denied.");
if (mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_PERMISSION_DENIED)) {
goto done;
}
} else if(errno == ENOENT) {
@ -640,19 +655,22 @@ int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "asprintf failed!");
}
}
// 403 Forbidden can be sent by the server if the file firewall is active.
// A file or directory should be ignored and sync must continue. See #3490
else if(errno == ERRNO_FORBIDDEN) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Directory access Forbidden (File Firewall?)");
if( mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_FORBIDDEN) ) {
goto done;
}
/* if current_fs is not defined here, better throw an error */
}
// The server usually replies with the custom "503 Storage not available"
// if some path is temporarily unavailable. But in some cases a standard 503
// is returned too. Thus we can't distinguish the two and will treat any
// 503 as request to ignore the folder. See #3113 #2884.
else if(errno == ERRNO_STORAGE_UNAVAILABLE || errno == ERRNO_SERVICE_UNAVAILABLE) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Storage was not available!");
if (ctx->current_fs) {
ctx->current_fs->instruction = CSYNC_INSTRUCTION_IGNORE;
ctx->current_fs->error_status = CSYNC_STATUS_STORAGE_UNAVAILABLE;
/* If a directory has ignored files, put the flag on the parent directory as well */
if( previous_fs ) {
previous_fs->has_ignored_files = true;
}
if( mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_STORAGE_UNAVAILABLE ) ) {
goto done;
}
/* if current_fs is not defined here, better throw an error */

4
src/libsync/discoveryphase.cpp
View file

@ -160,8 +160,10 @@ int get_errno_from_http_errcode( int err, const QString & reason ) {
case 423: /* Locked */
new_errno = EACCES;
break;
case 400: /* Bad Request */
case 403: /* Forbidden */
new_errno = ERRNO_FORBIDDEN;
break;
case 400: /* Bad Request */
case 409: /* Conflict */
case 411: /* Length Required */
case 412: /* Precondition Failed */

8
src/libsync/syncengine.cpp
View file

@ -161,6 +161,9 @@ QString SyncEngine::csyncErrorToString(CSYNC_STATUS err)
case CSYNC_STATUS_STORAGE_UNAVAILABLE:
errStr = tr("The mounted folder is temporarily not available on the server");
break;
case CSYNC_STATUS_FORBIDDEN:
errStr = tr("Access is forbidden");
break;
case CSYNC_STATUS_OPENDIR_ERROR:
errStr = tr("An error occurred while opening a folder");
break;
@ -412,6 +415,11 @@ int SyncEngine::treewalkFile( TREE_WALK_FILE *file, bool remote )
item->_status = SyncFileItem::SoftError;
_temporarilyUnavailablePaths.insert(item->_file);
break;
case CSYNC_STATUS_FORBIDDEN:
item->_errorString = QLatin1String("Access forbidden.");
item->_status = SyncFileItem::SoftError;
_temporarilyUnavailablePaths.insert(item->_file);
break;
case CSYNC_STATUS_PERMISSION_DENIED:
item->_errorString = QLatin1String("Directory not accessible on client, permission denied.");
item->_status = SyncFileItem::SoftError;