kallithea Files · rhodecode/lib/profiler.py

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2aa7f454204e 1.4 KiB text/x-python Show Annotation Show as Raw Download as Raw

Marcin Kuzminski

fixes #298, ldap email addresses created by rhodecode automatically during first login didn't get converted to lower case, which lead to lookup failures and than wrong checks for uniqueness. Fixed that by putting a setter on db model column that will enforce converting to lowercase.

from __future__ import with_statement

import cProfile
import pstats
import cgi
import pprint
import threading

from StringIO import StringIO


class ProfilingMiddleware(object):
    def __init__(self, app):
        self.lock = threading.Lock()
        self.app = app

    def __call__(self, environ, start_response):
        with self.lock:
            profiler = cProfile.Profile()

            def run_app(*a, **kw):
                self.response = self.app(environ, start_response)

            profiler.runcall(run_app, environ, start_response)

            profiler.snapshot_stats()

            stats = pstats.Stats(profiler)
            stats.sort_stats('cumulative')

            # Redirect output
            out = StringIO()
            stats.stream = out

            stats.print_stats()

            resp = ''.join(self.response)

            # Lets at least only put this on html-like responses.
            if resp.strip().startswith('<'):
                ## The profiling info is just appended to the response.
                ##  Browsers don't mind this.
                resp += ('<pre style="text-align:left; '
                         'border-top: 4px dashed red; padding: 1em;">')
                resp += cgi.escape(out.getvalue(), True)

                output = StringIO()
                pprint.pprint(environ, output, depth=3)

                resp += cgi.escape(output.getvalue(), True)
                resp += '</pre>'

            return resp