Add pastealacon backend for CapPaste

Sadly, not posting for now, for two reasons:
* we get a captcha very often
* the form page seems invalid and mechanize is not able to select the form

weboob/backends/pastealacon/browser.py

@@ -0,0 +1,45 @@
+# -*- 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 weboob.tools.browser import BaseBrowser
+
+from .pages import PastePage
+
+__all__ = ['PastealaconBrowser']
+
+class PastealaconBrowser(BaseBrowser):
+    DOMAIN = 'pastealacon.com'
+    ENCODING = 'ISO-8859-1'
+    PAGES = {'http://%s/(?P<id>\d+)' % DOMAIN: PastePage}
+
+    def fill_paste(self, paste):
+        """
+        Get as much as information possible from the paste page
+        """
+        self.location(paste.page_url)
+        return self.page.fill_paste(paste)
+
+    def get_contents(self, _id):
+        """
+        Get the contents from the raw URL
+        This is the fastest and safest method if you only want the content.
+        Returns unicode.
+        """
+        return self.readurl('http://%s/pastebin.php?dl=%s' % (self.DOMAIN, _id)).decode(self.ENCODING)