def _translate_result(self, rslt, err, id_):
if err != None:
if isinstance(err, CustomJsException):
return err.message
log = self._log_errors()
if log:
return log
err = {"name": err.__class__.__name__, "message": err.message}
rslt = None
try:
if isinstance(rslt, basestring):
data = '{"result":%s,"id":%i,"error":%s}' % (rslt, id_, dumps(err))
else:
data = dumps({"result": rslt, "id": id_, "error": err})
except JSONEncodeException, e:
err = {"name": "JSONEncodeException", "message": "Result Object Not Serializable"}
data = dumps({"result": None, "id": id_, "error": err})
def _log_errors(self):
"""
In development env, it will logs the error to the browser's console as well
as the logs file.
otherwise, it will only be logged in the log files (appengine app console)
"""
import traceback, sys
exc_type, exc_value, exc_tb = sys.exc_info()
tb = traceback.format_exception(exc_type, exc_value, exc_tb)
err = "".join(tb)
logging.error(err)
if "Development" in os.environ["SERVER_SOFTWARE"]:
return "console.warn(%s)" % dumps("Python Error:\n%s" % err)
def dispatch_request(environ, start_response):
"""Main entry point for the Trac web interface.
@param environ: the WSGI environment dict
@param start_response: the WSGI callback for starting the response
"""
try:
env = Environment()
req = Request(environ, start_response)
try:
dispatcher = RequestDispatcher(env)
dispatcher.dispatch(req)
except RequestDone:
pass
resp = req._response or []
return resp
except Exception, ex:
req = Request(environ, start_response)
from google.appengine.ext.webapp import template
from tic.web import browser
req.send_response(500)
mimetype = "text/html;charset=utf-8"
req.send_header('Content-Type', mimetype)
import traceback, sys
exc_type, exc_value, exc_tb = sys.exc_info()
tb = traceback.format_exception(exc_type, exc_value, exc_tb)
err = ''.join(tb)
logging.error('\n' + err)
if 'Development' in os.environ['SERVER_SOFTWARE']:
error = "function(){console.warn(%s);}()" % dumps("Python Error:\n%s" % err)
vars = {
'data': {
'js': error,
'text': '<br />'.join(tb)
}
}
req.write(template.render("tic/web/templates/error.html", vars))
else:
raise
