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Diffstat (limited to 'cherrypy/test/modwsgi.py')
-rwxr-xr-x | cherrypy/test/modwsgi.py | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/cherrypy/test/modwsgi.py b/cherrypy/test/modwsgi.py new file mode 100755 index 0000000..309a541 --- /dev/null +++ b/cherrypy/test/modwsgi.py @@ -0,0 +1,148 @@ +"""Wrapper for mod_wsgi, for use as a CherryPy HTTP server. + +To autostart modwsgi, the "apache" executable or script must be +on your system path, or you must override the global APACHE_PATH. +On some platforms, "apache" may be called "apachectl" or "apache2ctl"-- +create a symlink to them if needed. + + +KNOWN BUGS +========== + +##1. Apache processes Range headers automatically; CherryPy's truncated +## output is then truncated again by Apache. See test_core.testRanges. +## This was worked around in http://www.cherrypy.org/changeset/1319. +2. Apache does not allow custom HTTP methods like CONNECT as per the spec. + See test_core.testHTTPMethods. +3. Max request header and body settings do not work with Apache. +##4. Apache replaces status "reason phrases" automatically. For example, +## CherryPy may set "304 Not modified" but Apache will write out +## "304 Not Modified" (capital "M"). +##5. Apache does not allow custom error codes as per the spec. +##6. Apache (or perhaps modpython, or modpython_gateway) unquotes %xx in the +## Request-URI too early. +7. mod_wsgi will not read request bodies which use the "chunked" + transfer-coding (it passes REQUEST_CHUNKED_ERROR to ap_setup_client_block + instead of REQUEST_CHUNKED_DECHUNK, see Apache2's http_protocol.c and + mod_python's requestobject.c). +8. When responding with 204 No Content, mod_wsgi adds a Content-Length + header for you. +9. When an error is raised, mod_wsgi has no facility for printing a + traceback as the response content (it's sent to the Apache log instead). +10. Startup and shutdown of Apache when running mod_wsgi seems slow. +""" + +import os +curdir = os.path.abspath(os.path.dirname(__file__)) +import re +import sys +import time + +import cherrypy +from cherrypy.test import helper, webtest + + +def read_process(cmd, args=""): + pipein, pipeout = os.popen4("%s %s" % (cmd, args)) + try: + firstline = pipeout.readline() + if (re.search(r"(not recognized|No such file|not found)", firstline, + re.IGNORECASE)): + raise IOError('%s must be on your system path.' % cmd) + output = firstline + pipeout.read() + finally: + pipeout.close() + return output + + +if sys.platform == 'win32': + APACHE_PATH = "httpd" +else: + APACHE_PATH = "apache" + +CONF_PATH = "test_mw.conf" + +conf_modwsgi = r""" +# Apache2 server conf file for testing CherryPy with modpython_gateway. + +ServerName 127.0.0.1 +DocumentRoot "/" +Listen %(port)s + +AllowEncodedSlashes On +LoadModule rewrite_module modules/mod_rewrite.so +RewriteEngine on +RewriteMap escaping int:escape + +LoadModule log_config_module modules/mod_log_config.so +LogFormat "%%h %%l %%u %%t \"%%r\" %%>s %%b \"%%{Referer}i\" \"%%{User-agent}i\"" combined +CustomLog "%(curdir)s/apache.access.log" combined +ErrorLog "%(curdir)s/apache.error.log" +LogLevel debug + +LoadModule wsgi_module modules/mod_wsgi.so +LoadModule env_module modules/mod_env.so + +WSGIScriptAlias / "%(curdir)s/modwsgi.py" +SetEnv testmod %(testmod)s +""" + + +class ModWSGISupervisor(helper.Supervisor): + """Server Controller for ModWSGI and CherryPy.""" + + using_apache = True + using_wsgi = True + template=conf_modwsgi + + def __str__(self): + return "ModWSGI Server on %s:%s" % (self.host, self.port) + + def start(self, modulename): + mpconf = CONF_PATH + if not os.path.isabs(mpconf): + mpconf = os.path.join(curdir, mpconf) + + f = open(mpconf, 'wb') + try: + output = (self.template % + {'port': self.port, 'testmod': modulename, + 'curdir': curdir}) + f.write(output) + finally: + f.close() + + result = read_process(APACHE_PATH, "-k start -f %s" % mpconf) + if result: + print(result) + + # Make a request so mod_wsgi starts up our app. + # If we don't, concurrent initial requests will 404. + cherrypy._cpserver.wait_for_occupied_port("127.0.0.1", self.port) + webtest.openURL('/ihopetheresnodefault', port=self.port) + time.sleep(1) + + def stop(self): + """Gracefully shutdown a server that is serving forever.""" + read_process(APACHE_PATH, "-k stop") + + +loaded = False +def application(environ, start_response): + import cherrypy + global loaded + if not loaded: + loaded = True + modname = "cherrypy.test." + environ['testmod'] + mod = __import__(modname, globals(), locals(), ['']) + mod.setup_server() + + cherrypy.config.update({ + "log.error_file": os.path.join(curdir, "test.error.log"), + "log.access_file": os.path.join(curdir, "test.access.log"), + "environment": "test_suite", + "engine.SIGHUP": None, + "engine.SIGTERM": None, + }) + return cherrypy.tree(environ, start_response) + |