support repositories to manage backends (closes #747)

modules/pastebin/backend.py

@@ -0,0 +1,105 @@
+# -*- 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
+
+from weboob.tools.capabilities.paste import BasePasteBackend
+from weboob.tools.backend import BaseBackend, BackendConfig
+from weboob.capabilities.base import NotLoaded
+from weboob.tools.value import Value, ValueBackendPassword
+
+from .browser import PastebinBrowser
+from .paste import PastebinPaste
+
+
+__all__ = ['PastebinBackend']
+
+
+class PastebinBackend(BaseBackend, BasePasteBackend):
+    NAME = 'pastebin'
+    MAINTAINER = 'Laurent Bachelier'
+    EMAIL = 'laurent@bachelier.name'
+    VERSION = '0.a'
+    DESCRIPTION = 'Pastebin paste tool'
+    LICENSE = 'AGPLv3+'
+    BROWSER = PastebinBrowser
+    CONFIG = BackendConfig(
+        Value('username', label='Optional username', default=''),
+        ValueBackendPassword('password', label='Optional password', default=''),
+        ValueBackendPassword('api_key',  label='Optional API key',  default='', noprompt=True),
+    )
+
+    EXPIRATIONS = {
+        600: '10M',
+        3600: '1H',
+        3600*24: '1D',
+        3600*24*30: '1M',
+        False: 'N',
+    }
+
+    def create_default_browser(self):
+        username = self.config['username'].get()
+        if username:
+            password = self.config['password'].get()
+        else:
+            password = None
+        return self.create_browser(self.config['api_key'].get() if self.config['api_key'].get() else None,
+                                   username, password, get_home=False)
+
+    def new_paste(self, *args, **kwargs):
+        return PastebinPaste(*args, **kwargs)
+
+    def can_post(self, contents, title=None, public=None, max_age=None):
+        if max_age is not None:
+            if self.get_closest_expiration(max_age) is None:
+                return 0
+        if not title or len(title) <= 60:
+            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, use_api=True):
+        if max_age is not None:
+            expiration = self.get_closest_expiration(max_age)
+        else:
+            expiration = None
+        with self.browser:
+            if use_api and self.config.get('api_key').get():
+                self.browser.api_post_paste(paste, expiration=self.EXPIRATIONS.get(expiration))
+            else:
+                self.browser.post_paste(paste, expiration=self.EXPIRATIONS.get(expiration))
+
+    OBJECTS = {PastebinPaste: fill_paste}