support repositories to manage backends (closes #747)

modules/pastealacon/backend.py

@@ -0,0 +1,94 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2011 Laurent Bachelier
+#
+# This file is part of weboob.
+#
+# weboob is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# weboob is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with weboob. If not, see <http://www.gnu.org/licenses/>.
+
+
+from __future__ import with_statement
+
+import re
+
+from weboob.tools.capabilities.paste import BasePasteBackend
+from weboob.tools.backend import BaseBackend
+from weboob.capabilities.base import NotLoaded
+
+from .browser import PastealaconBrowser
+from .paste import PastealaconPaste
+
+
+__all__ = ['PastealaconBackend']
+
+
+class PastealaconBackend(BaseBackend, BasePasteBackend):
+    NAME = 'pastealacon'
+    MAINTAINER = 'Laurent Bachelier'
+    EMAIL = 'laurent@bachelier.name'
+    VERSION = '0.a'
+    DESCRIPTION = 'Paste a la con paste tool'
+    LICENSE = 'AGPLv3+'
+    BROWSER = PastealaconBrowser
+
+    EXPIRATIONS = {
+        24*3600: 'd',
+        24*3600*30: 'm',
+        False: 'f',
+    }
+
+    def new_paste(self, *args, **kwargs):
+        return PastealaconPaste(*args, **kwargs)
+
+    def can_post(self, contents, title=None, public=None, max_age=None):
+        try:
+            contents.encode(self.browser.ENCODING)
+        except UnicodeEncodeError:
+            return 0
+        if public is False:
+            return 0
+        if max_age is not None:
+            if self.get_closest_expiration(max_age) is None:
+                return 0
+        # the "title" is filtered (does not even accepts dots)
+        if not title or re.match('^\w+$', title) and len(title) <= 24:
+            return 2
+        return 1
+
+    def get_paste(self, _id):
+        with self.browser:
+            return self.browser.get_paste(_id)
+
+    def fill_paste(self, paste, fields):
+        # if we only want the contents
+        if fields == ['contents']:
+            if paste.contents is NotLoaded:
+                with self.browser:
+                    contents = self.browser.get_contents(paste.id)
+                    paste.contents = contents
+        # get all fields
+        elif fields is None or len(fields):
+            with self.browser:
+                self.browser.fill_paste(paste)
+        return paste
+
+    def post_paste(self, paste, max_age = None):
+        if max_age is not None:
+            expiration = self.get_closest_expiration(max_age)
+        else:
+            expiration = None
+        with self.browser:
+            self.browser.post_paste(paste, expiration=self.EXPIRATIONS.get(expiration))
+
+    OBJECTS = {PastealaconPaste: fill_paste}