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file sharing component: thumbnails integration first draft:

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if an uploaded file is detected as an image, 2 thumbnails (small and medium size) are generated automatically.
This commit is contained in:
Goffi 2018-03-02 17:53:31 +01:00
commit 261e3b3099
1 changed files with 30 additions and 5 deletions
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35
src/plugins/plugin_comp_file_sharing.py
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@ -27,6 +27,7 @@ from sat.tools import stream
from twisted.internet import defer
import os
import os.path
import mimetypes
PLUGIN_INFO = {
@ -35,14 +36,13 @@ PLUGIN_INFO = {
C.PI_MODES: [C.PLUG_MODE_COMPONENT],
C.PI_TYPE: C.PLUG_TYPE_ENTRY_POINT,
C.PI_PROTOCOLS: [],
C.PI_DEPENDENCIES: ["FILE", "XEP-0234", "XEP-0260", "XEP-0261", "XEP-0329"],
C.PI_DEPENDENCIES: ["FILE", "XEP-0234", "XEP-0260", "XEP-0261", "XEP-0264", "XEP-0329"],
C.PI_RECOMMENDATIONS: [],
C.PI_MAIN: "FileSharing",
C.PI_HANDLER: "no",
C.PI_DESCRIPTION: _(u"""Component hosting and sharing files""")
}
PROGRESS_ID_KEY = 'progress_id'
HASH_ALGO = u'sha-256'
@ -54,6 +54,7 @@ class FileSharing(object):
self._f = host.plugins['FILE']
self._jf = host.plugins['XEP-0234']
self._h = host.plugins['XEP-0300']
self._t = host.plugins['XEP-0264']
host.trigger.add("FILE_getDestDir", self._getDestDirTrigger)
host.trigger.add("XEP-0234_fileSendingRequest", self._fileSendingRequestTrigger, priority=1000)
self.files_path = host.getLocalPath(None, C.FILES_DIR, profile=False)
@ -68,6 +69,9 @@ class FileSharing(object):
@defer.inlineCallbacks
def _fileTransferedCb(self, dummy, client, peer_jid, file_data, file_path):
name = file_data[u'name']
extra = {}
if file_data[u'hash_algo'] == HASH_ALGO:
log.debug(_(u"Reusing already generated hash"))
file_hash = file_data[u'hash_hasher'].hexdigest()
@ -76,28 +80,49 @@ class FileSharing(object):
with open('file_path') as f:
file_hash = yield self._h.calculateHash(f, hasher)
final_path = os.path.join(self.files_path, file_hash)
if os.path.isfile(final_path):
log.debug(u"file [{file_hash}] already exists, we can remove temporary one".format(file_hash = file_hash))
os.unlink(file_path)
else:
os.rename(file_path, final_path)
log.debug(u"file [{file_hash}] moved to {files_path}".format(file_hash=file_hash, files_path=self.files_path))
mime_type = file_data.get(u'mime_type')
if not mime_type or mime_type == u'application/octet-stream':
mime_type = mimetypes.guess_type(name)[0]
if mime_type is not None and mime_type.startswith(u'image'):
thumbnails = extra.setdefault(C.KEY_THUMBNAILS, [])
for max_thumb_size in (self._t.SIZE_SMALL, self._t.SIZE_MEDIUM):
try:
thumb_size, thumb_id = yield self._t.generateThumbnail(final_path,
max_thumb_size,
# we keep thumbnails for 6 months
60*60*24*31*6)
except Exception as e:
log.warning(_(u"Can't create thumbnail: {reason}").format(reason=e))
break
thumbnails.append({u'id': thumb_id, u'size': thumb_size})
self.host.memory.setFile(client,
name=file_data[u'name'],
name=name,
version=u'',
file_hash=file_hash,
hash_algo=HASH_ALGO,
size=file_data[u'size'],
path=file_data.get(u'path'),
namespace=file_data.get(u'namespace'),
owner=peer_jid)
mime_type=mime_type,
owner=peer_jid,
extra=extra)
def _getDestDirTrigger(self, client, peer_jid, transfer_data, file_data, stream_object):
if not client.is_component:
return True, None
assert stream_object
assert 'stream_object' not in transfer_data
assert PROGRESS_ID_KEY in file_data
assert C.KEY_PROGRESS_ID in file_data
filename = file_data['name']
assert filename and not '/' in filename
file_tmp_dir = self.host.getLocalPath(client, C.FILES_TMP_DIR, peer_jid.userhost(), component=True, profile=False)