Added Python version of htlogr

lib/htlogr.py

@@ -0,0 +1,59 @@
+## Author: Alois Mahdal at zxcvb cz
+# Front-end for very primitive remote logging service. Use htlog.cgi
+# as back-end: put it on a HTTP server and provide URL as "path" option
+# when instantiating this class
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program 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 General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import httplib
+import urlparse
+import urllib
+
+
+class htlogr:
+
+    def __init__(self, url):
+        self.DIV_VALUE = "="
+        self.DIV_FIELD = ";"
+        self.url = url
+        self.parsed_url = urlparse.urlparse(url)
+        self.conn = httplib.HTTPConnection(self.parsed_url.hostname)
+
+    def _zipup_params(self, params):
+        args = []
+        for name, value in params.iteritems():
+            if params[name]:
+                value = str(value)
+                args.append("%s=%s" % (name, urllib.quote(value)))
+        return "&".join(args)
+
+    def _serialize(self, data):
+        fields = []
+        for key, value in data.iteritems():
+            fields.append("%s%s%s" % (key, self.DIV_VALUE, value))
+        return self.DIV_FIELD.join(fields)
+
+    def log(self, msg, tag=None, i=None):
+        params = {"msg": msg, "tag": tag, "i": i}
+        pq = "%s?%s" % (self.parsed_url.path, self._zipup_params(params))
+        self.conn.request("GET", pq)
+        r = self.conn.getresponse()
+        assert r.status == 200, ("logging server returned error %s,"
+                                 "message not logged")
+        return r.read()
+
+    def data(self, data, tag=None, i=None):
+        assert isinstance(data, dict), "data must be dict"
+        msg = self._serialize(data)
+        return self.log(msg, tag=tag, i=i)