[IMP]Odoo backup script : add alternative method for dump

* Use direct calls with HTTP GET (v8) / POST (v10/12)

odoo/scripts/backup.py

@@ -4,6 +4,8 @@
 
 from datetime import datetime
 import argparse
+import httplib
+import urllib
 import common
 
 
@@ -13,25 +15,36 @@ def datefmt():
     return today.strftime('%Y-%m-%d_%Hh%Mm%Ss')
 
 
-def dump(odoo, bakpath, password, dbnames, format_):
-    """ Dumps a database list """
-    for dbname in dbnames:
-        dumpf = odoo.db.dump(password, dbname, format_)
-        fpath = '{bakpath}/{date}_{host}_{dbname}.{fmt}'.format(bakpath=bakpath,
-                                                         host=odoo.host,
-                                                         dbname=dbname,
-                                                         date=datefmt(),
-                                                         fmt=format_)
+def dump(odoo, args):
+    """ Dumps a database list from API or HTTP call """
+    for dbname in args.names.split(','):
+        if not args.alternative:
+            dumpf = odoo.db.dump(args.password, dbname, args.format)
+        else:
+            conn = httplib.HTTPConnection(args.host, args.port)
+            if odoo.version != '8.0':
+                params = urllib.urlencode({'master_pwd': args.password,
+                                           'name': dbname,
+                                           'backup_format': args.format})
+                headers = {"Content-type": "application/x-www-form-urlencoded",
+                           "Accept": "text/plain"}
+                conn.request('POST', '/web/database/backup', params, headers)
+            else:
+                headers = {"Accept": "text/plain"}
+                url = (u'/web/database/backup?backup_pwd=%s&backup_db=%s'
+                       '&backup_format=%s&token=') % (args.password, dbname, args.format)
+                conn.request('GET', url, '', headers)
+            dumpf = conn.getresponse()
+        fpath = '{bakpath}/{date}_{host}_{dbname}.{fmt}'.format(
+            bakpath=args.directory, host=args.host, dbname=dbname,
+            date=datefmt(), fmt=args.format
+        )
         with open(fpath, 'wb') as zipf:
             zipf.write(dumpf.read())
+        if args.alternative:
+            conn.close()
     return True
 
-
-def dump_all(odoo, bakpath, password, format_):
-    """ Dump all databases """
-    return dump(odoo, bakpath, password, odoo.db.list(), format_)
-
-
 def main():
     """ Main function with argument parsing """
     parser = argparse.ArgumentParser(description='Backup Odoo databases')
@@ -44,6 +57,8 @@ def main():
                         help='optional database names (default:all)')
     parser.add_argument('-f', '--format', type=str, default='zip',
                         help='optional database format (default:zip)')
+    parser.add_argument('-alt', '--alternative', type=bool, default=False,
+                        help='alternative dump through HTTP POST')
     args = parser.parse_args()
 
     # Connection
@@ -51,9 +66,8 @@ def main():
 
     # Backup actions
     if not args.names:
-        dump_all(odoo, args.directory, args.password, args.format)
-    else:
-        dump(odoo, args.directory, args.password, args.names.split(','), args.format)
+        args.names = odoo.db.list()
+    dump(odoo, args)
 
 if __name__ == "__main__":
     main()