Mercurial > libervia-backend

annotate sat/plugins/plugin_xep_0264.py @ 3076:2180b0f5c1cd

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
core: use sat_tmp's twisted patches for Python 3.8 compatibility
author Goffi <goffi@goffi.org>
date Mon, 18 Nov 2019 20:51:25 +0100
parents ab2696e34d29
children 9d0df638c8b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
1 #!/usr/bin/env python3
2513
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
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
29 from zope.interface import implementer
2513
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(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
40 "Missing module pillow, please download/install it from https://python-pillow.github.io"
2624
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
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
54 MIME_TYPE = "image/jpeg"
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
55 SAVE_FORMAT = "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):
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
77 log.info(_("Plugin XEP_0264 initialization"))
2513
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:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
89 thumbnails = extra_args["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:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
93 thumbnail_elt = file_elt.addElement((NS_THUMBS, "thumbnail"))
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
94 thumbnail_elt["uri"] = "cid:" + thumbnail["id"]
2624
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"]
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
97 thumbnail_elt["width"] = str(width)
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
98 thumbnail_elt["height"] = str(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 = []
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
103 for thumbnail_elt in file_elt.elements(NS_THUMBS, "thumbnail"):
2624
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:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
147 return Failure(exceptions.DataError("Can't open image"))
2513
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(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
179 lambda failure_: log.error("thumbnail generation error: {}".format(failure_))
2624
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
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
184 @implementer(iwokkel.IDisco)
2513
2d3c9dcec384 plugin XEP-0264: thumbnails handling implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
185 class XEP_0264_handler(XMPPHandler):
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 []