Mercurial > libervia-backend

annotate sat/plugins/plugin_xep_0264.py @ 2886:b06cb71079fa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
core (xmpp): new networkEnabled() and networkDisabled() methods: those methods can be called by platform specific plugins when network is known to be (un)available. This way, connection attempts can be cancelled when no network is available, saving resources (notably battery on mobile devices), or attempts can be restarted immediately when network is known to be available again.
author Goffi <goffi@goffi.org>
date Sat, 06 Apr 2019 19:05:57 +0200
parents 003b8b4b56a7
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python2
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
2 # -*- coding: utf-8 -*-
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
3
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
4 # SAT plugin for managing xep-0264
2771
003b8b4b56a7 date update
Goffi <goffi@goffi.org>
parents: 2624
diff changeset
5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
6 # Copyright (C) 2014 Emmanuel Gil Peyrot (linkmauve@linkmauve.fr)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
7
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
8 # This program is free software: you can redistribute it and/or modify
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
9 # it under the terms of the GNU Affero General Public License as published by
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
10 # the Free Software Foundation, either version 3 of the License, or
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
11 # (at your option) any later version.
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
12
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
13 # This program is distributed in the hope that it will be useful,
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
16 # GNU Affero General Public License for more details.
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
17
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
18 # You should have received a copy of the GNU Affero General Public License
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
20
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
21 from sat.core.i18n import _
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
22 from sat.core.constants import Const as C
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
23 from sat.core.log import getLogger
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
24
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
25 log = getLogger(__name__)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
26 from twisted.internet import threads
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
27 from twisted.python.failure import Failure
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
28
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
29 from zope.interface import implements
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
30
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
31 from wokkel import disco, iwokkel
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
32
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
33 from sat.core import exceptions
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
34 import hashlib
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
35
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
36 try:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
37 from PIL import Image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
38 except:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
39 raise exceptions.MissingModule(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
40 u"Missing module pillow, please download/install it from https://python-pillow.github.io"
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
41 )
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
42
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
43 #  cf. https://stackoverflow.com/a/23575424
2521
327bbbe793ce plugin XEP-0264: handle truncated files
Goffi <goffi@goffi.org>
parents: 2513
diff changeset
44 from PIL import ImageFile
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
45
2521
327bbbe793ce plugin XEP-0264: handle truncated files
Goffi <goffi@goffi.org>
parents: 2513
diff changeset
46 ImageFile.LOAD_TRUNCATED_IMAGES = True
327bbbe793ce plugin XEP-0264: handle truncated files
Goffi <goffi@goffi.org>
parents: 2513
diff changeset
47
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
48 try:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
49 from twisted.words.protocols.xmlstream import XMPPHandler
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
50 except ImportError:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
51 from wokkel.subprotocols import XMPPHandler
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
52
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
53
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
54 MIME_TYPE = u"image/jpeg"
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
55 SAVE_FORMAT = u"JPEG" # (cf. Pillow documentation)
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
56
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
57 NS_THUMBS = "urn:xmpp:thumbs:1"
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
58
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
59 PLUGIN_INFO = {
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
60 C.PI_NAME: "XEP-0264",
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
61 C.PI_IMPORT_NAME: "XEP-0264",
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
62 C.PI_TYPE: "XEP",
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
63 C.PI_MODES: C.PLUG_MODE_BOTH,
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
64 C.PI_PROTOCOLS: ["XEP-0264"],
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
65 C.PI_DEPENDENCIES: ["XEP-0234"],
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
66 C.PI_MAIN: "XEP_0264",
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
67 C.PI_HANDLER: "yes",
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
68 C.PI_DESCRIPTION: _("""Thumbnails handling"""),
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
69 }
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
70
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
71
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
72 class XEP_0264(object):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
73 SIZE_SMALL = (250, 250)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
74 SIZE_MEDIUM = (1024, 1024)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
75
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
76 def __init__(self, host):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
77 log.info(_(u"Plugin XEP_0264 initialization"))
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
78 self.host = host
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
79 host.trigger.add("XEP-0234_buildFileElement", self._addFileThumbnails)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
80 host.trigger.add("XEP-0234_parseFileElement", self._getFileThumbnails)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
81
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
82 def getHandler(self, client):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
83 return XEP_0264_handler()
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
84
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
85 ## triggers ##
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
86
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
87 def _addFileThumbnails(self, file_elt, extra_args):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
88 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
89 thumbnails = extra_args[u"extra"][C.KEY_THUMBNAILS]
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
90 except KeyError:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
91 return
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
92 for thumbnail in thumbnails:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
93 thumbnail_elt = file_elt.addElement((NS_THUMBS, u"thumbnail"))
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
94 thumbnail_elt["uri"] = u"cid:" + thumbnail["id"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
95 thumbnail_elt["media-type"] = MIME_TYPE
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
96 width, height = thumbnail["size"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
97 thumbnail_elt["width"] = unicode(width)
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
98 thumbnail_elt["height"] = unicode(height)
2528
65e278997715 component file sharing: comments metadata:
Goffi <goffi@goffi.org>
parents: 2521
diff changeset
99 return True
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
100
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
101 def _getFileThumbnails(self, file_elt, file_data):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
102 thumbnails = []
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
103 for thumbnail_elt in file_elt.elements(NS_THUMBS, u"thumbnail"):
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
104 uri = thumbnail_elt["uri"]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
105 if uri.startswith("cid:"):
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
106 thumbnail = {"id": uri[4:]}
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
107 width = thumbnail_elt.getAttribute("width")
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
108 height = thumbnail_elt.getAttribute("height")
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
109 if width and height:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
110 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
111 thumbnail["size"] = int(width), int(height)
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
112 except ValueError:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
113 pass
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
114 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
115 thumbnail["mime_type"] = thumbnail_elt["media-type"]
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
116 except KeyError:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
117 pass
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
118 thumbnails.append(thumbnail)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
119
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
120 if thumbnails:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
121 file_data.setdefault("extra", {})[C.KEY_THUMBNAILS] = thumbnails
2528
65e278997715 component file sharing: comments metadata:
Goffi <goffi@goffi.org>
parents: 2521
diff changeset
122 return True
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
123
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
124 ## thumbnails generation ##
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
125
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
126 def getThumbId(self, image_uid, size):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
127 """return an ID unique for image/size combination
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
128
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
129 @param image_uid(unicode): unique id of the image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
130 can be a hash
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
131 @param size(tuple(int)): requested size of thumbnail
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
132 @return (unicode): unique id for this image/size
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
133 """
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
134 return hashlib.sha256(repr((image_uid, size))).hexdigest()
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
135
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
136 def _blockingGenThumb(self, source_path, size=None, max_age=None, image_uid=None):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
137 """Generate a thumbnail for image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
138
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
139 This is a blocking method and must be executed in a thread
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
140 params are the same as for [generateThumbnail]
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
141 """
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
142 if size is None:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
143 size = self.SIZE_SMALL
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
144 try:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
145 img = Image.open(source_path)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
146 except IOError:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
147 return Failure(exceptions.DataError(u"Can't open image"))
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
148
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
149 img.thumbnail(size)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
150 uid = self.getThumbId(image_uid or source_path, size)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
151
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
152 with self.host.common_cache.cacheData(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
153 PLUGIN_INFO[C.PI_IMPORT_NAME], uid, MIME_TYPE, max_age
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
154 ) as f:
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
155 img.save(f, SAVE_FORMAT)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
156
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
157 return img.size, uid
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
158
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
159 def generateThumbnail(self, source_path, size=None, max_age=None, image_uid=None):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
160 """Generate a thumbnail of image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
161
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
162 @param source_path(unicode): absolute path to source image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
163 @param size(int, None): max size of the thumbnail
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
164 can be one of self.SIZE_*
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
165 None to use default value (i.e. self.SIZE_SMALL)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
166 @param max_age(int, None): same as for [memory.cache.Cache.cacheData])
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
167 @param image_uid(unicode, None): unique ID to identify the image
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
168 use hash whenever possible
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
169 if None, source_path will be used
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
170 @return D(tuple[tuple[int,int], unicode]): tuple with:
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
171 - size of the thumbnail
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
172 - unique Id of the thumbnail
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
173 """
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
174
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
175 d = threads.deferToThread(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
176 self._blockingGenThumb, source_path, size, max_age, image_uid=image_uid
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
177 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
178 d.addErrback(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
179 lambda failure_: log.error(u"thumbnail generation error: {}".format(failure_))
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
180 )
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
181 return d
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
182
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
183
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
184 class XEP_0264_handler(XMPPHandler):
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
185 implements(iwokkel.IDisco)
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
186
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
187 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
188 return [disco.DiscoFeature(NS_THUMBS)]
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
189
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
190 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
191 return []