Changeset 1431

Timestamp:

02/19/08 12:47:41 (9 months ago)

Author:

JensDiemer

Message:

FastCGI: split the dispatcher file

Location:

trunk/pylucid

Files:

• index.fcgi (modified) (4 diffs)
• PyLucid/system/fastcgi_server.py (added)

trunk/pylucid/index.fcgi

@@ -13 +13 @@
 
     Note:
-    -If this file does not lie in the project folder, you must set PROJECT_DIR!
+    -If this file does not lie in the project folder, you must set project_dir.
     -You need the python package "flup": http://trac.saddi.com/flup
 
@@ -23 +23 @@
         - "Premature end of script headers"
     try this:
-        - Set a LOGFILE
+        - Set a logfile
         - use the runfastcgi() options:
             daemonize="false"
@@ -30 +30 @@
         - Try to turn on the flup traceback, see:
             http://code.djangoproject.com/ticket/6610
+
+    Give feedback in our forum!
 
     Last commit info:
@@ -40 +42 @@
     :license: GNU GPL v3, see LICENSE.txt for more details.
 """
-import sys, os, time
+from PyLucid.system.fastcgi_server import fastcgi_server
 
-start_overall = time.time()
+fastcgi_server(
+    # Change into a other project directory?
+    # (default: not set -> Don't change the current workdir)
+    # e.g.:
+    # project_dir="/var/www/htdocs/pylucid/",
 
-# Logging
-# If you enable logging, you should set maxrequests=1 in the runfastcgi method
-# above. Then you see a "alive" log entry (sysexit) afert every request.
-LOGFILE = None # No logging!
-#LOGFILE = "PyLucid_fcgi.log" # Log into this file
+    # Logging
+    # If you enable logging, you should set "maxrequests"=1 and
+    # "daemonize":"false" in runfastcgi_kwargs. Then you see a "alive" log
+    # entry (sysexit) after every request.
+    # (default: not set -> No logging)
+    # e.g.:
+    #logfile="PyLucid_fcgi.log",
 
-# Change into a other directory?
-PROJECT_DIR = None # No chdir needed
-#PROJECT_DIR = "/var/www/htdocs/pylucid/" # Change into this directory
+    # The DJANGO_SETTINGS_MODULE environment variable.
+    # (default: "PyLucid.settings")
+    settings_module="PyLucid.settings",
 
+    # Keyword arguments for django.core.servers.fastcgi.runfastcgi()
+    # (default: empty dict, no options set)
+    runfastcgi_kwargs={
+        # prefork or threaded (default "prefork")
+        #"method": "prefork",
 
-# Set the DJANGO_SETTINGS_MODULE environment variable.
-os.environ['DJANGO_SETTINGS_MODULE'] = "PyLucid.settings"
+        # "true" or "false" whether to detach from terminal
+        # Importand: It's not a bool, it's a string!
+        #"daemonize": "false",
 
-# Global variable for the last traceback:
-last_tb_info = None
+        # Number of requests a child handles before it is killed and a new
+        # child is forked.
+        # (default: 0 -> no limit)
+        # Set to 1 for debugging
+        #"maxrequests":1,
 
-#______________________________________________________________________________
-# Setup logging:
+        # max number of spare processes/threads
+        #"maxspare":2,
 
-if LOGFILE:
-    import logging
-    logging.basicConfig(
-        level=logging.DEBUG,
-        format='%(asctime)s %(levelname)s %(message)s',
-        filename=LOGFILE,
-        filemode='a'
-    )
-    log = logging.debug
-    log("--- Logging started ---")
-else:
-    # No logging
-    def log(*txt):
-        pass
+        # hard limit number of processes/threads
+        #"maxchildren":2,
 
-#______________________________________________________________________________
-# redirect stderr if logging is on:
-
-if LOGFILE:
-    try:
-        class StdErrorHandler(object):
-            """
-            redirects messages from stderr to stdout.
-            Sends a header, if the header were not already sent.
-            """
-            def __init__(self, out_method):
-                self.out_method = out_method
-
-            def write(self, *txt):
-                text = "".join([i for i in txt])
-                for line in text.splitlines():
-                    self.out_method(line)
-
-        sys.stderr = StdErrorHandler(log)
-        sys.stderr.write("stderr redirected into the logfile")
-    except Exception, e:
-        log("StdErrorHandler error: %s" % e)
-
-#______________________________________________________________________________
-
-
-def tb_catch_app(environ, start_response):
-    """ Minimalistic WSGI app for debugging """
-    start_response('200 OK', [('Content-Type', 'text/html')])
-    yield '<h1>FastCGI Traceback catch</h1>'
-
-    # Display the overall running time
-    yield 'overall time: %.2fsec' % (time.time() - start_overall)
-
-    # Display the last traceback
-    yield '<h2>last_tb_info:</h2>'
-    try:
-        yield "<pre>%s</pre>" % last_tb_info
-    except Exception, e:
-        yield "Traceback error: %s" % e
-
-    yield '<hr />'
-
-    from cgi import escape
-    yield '<h1>FastCGI Environment</h1><table>'
-    for k, v in sorted(environ.items()):
-        yield '<tr><th>%s</th><td>%s</td></tr>' % (
-            escape(repr(k)), escape(repr(v))
-        )
-    yield '</table>'
-
-#______________________________________________________________________________
-# If this file does not lie in the project folder, then you must define the
-# path to the project directory here:
-
-if PROJECT_DIR:
-    # Switch to the directory of your project.
-    log("chdir '%s'" % PROJECT_DIR)
-    try:
-        os.chdir(PROJECT_DIR)
-    except Exception, e:
-        log("chdir error:", e)
-
-    # Add a custom Python path, you'll want to add the parent folder of
-    # your project directory. (Optional.)
-    try:
-        sys.path.insert(0, PROJECT_DIR)
-    except Exception, e:
-        log("path.insert error:", e)
-
-#______________________________________________________________________________
-
-from django.core.handlers.wsgi import WSGIHandler
-from django.core.servers.fastcgi import runfastcgi
-
-try:
-    log('runfastcgi()')
-    runfastcgi(
-        #method="prefork",  # prefork or threaded (default prefork)
-        #daemonize="false", # Bool, whether to detach from terminal
-        #maxrequests=1,     # number of requests a child handles before it is
-                            # killed and a new child is forked (0 = no limit)
-        #maxspare=2,        # max number of spare processes/threads
-        #maxchildren=2      # hard limit number of processes/threads
-        #debug=True,        # Not Implemented, see:
-                            # http://code.djangoproject.com/ticket/6610
-    )
-except SystemExit, e:
-    log("sys.exit(%s) appears." % e)
-except Exception, e:
-    log("fastCGI error: %s" % e)
-    import sys, traceback
-    last_tb_info = traceback.format_exc()
-    log(last_tb_info)
-    from flup.server.fcgi import WSGIServer
-    WSGIServer(tb_catch_app).run()
-else:
-    log("fastcgi application ended.")
+        # Not Implemented, see: http://code.djangoproject.com/ticket/6610
+        #"debug":True,
+    }
+)