ERP5/bin: create the zopewsgi script

product/ERP5/bin/zopewsgi.py

+import argparse
+from io import BytesIO
+import logging
+import os
+import posixpath
+import socket
+import sys
+from tempfile import TemporaryFile
+import time
+from urllib import quote
+
+from waitress import serve
+import ZConfig
+import Zope2
+from Zope2.Startup.run import make_wsgi_app
+
+from Products.ERP5Type.patches.WSGIPublisher import publish_module
+
+
+# this class licensed under the MIT license (stolen from pyramid_translogger)
+class TransLogger(object):
+
+    format = ('%(REMOTE_ADDR)s - %(REMOTE_USER)s [%(time)s] '
+              '"%(REQUEST_METHOD)s %(REQUEST_URI)s %(HTTP_VERSION)s" '
+              '%(status)s %(bytes)s "%(HTTP_REFERER)s" "%(HTTP_USER_AGENT)s"')
+
+    def __init__(self, application, logger):
+        self.application = application
+        self.logger = logger
+
+    def __call__(self, environ, start_response):
+        start = time.localtime()
+        req_uri = quote(environ.get('SCRIPT_NAME', '')
+                               + environ.get('PATH_INFO', ''))
+        if environ.get('QUERY_STRING'):
+            req_uri += '?'+environ['QUERY_STRING']
+        method = environ['REQUEST_METHOD']
+        def replacement_start_response(status, headers, exc_info=None):
+            # @@: Ideally we would count the bytes going by if no
+            # content-length header was provided; but that does add
+            # some overhead, so at least for now we'll be lazy.
+            bytes = None
+            for name, value in headers:
+                if name.lower() == 'content-length':
+                    bytes = value
+            self.write_log(environ, method, req_uri, start, status, bytes)
+            return start_response(status, headers)
+        return self.application(environ, replacement_start_response)
+
+    def write_log(self, environ, method, req_uri, start, status, bytes):
+        if bytes is None:
+            bytes = '-'
+        if time.daylight:
+                offset = time.altzone / 60 / 60 * -100
+        else:
+                offset = time.timezone / 60 / 60 * -100
+        if offset >= 0:
+                offset = "+%0.4d" % (offset)
+        elif offset < 0:
+                offset = "%0.4d" % (offset)
+        remote_addr = '-'
+        if environ.get('HTTP_X_FORWARDED_FOR'):
+            remote_addr = environ['HTTP_X_FORWARDED_FOR']
+        elif environ.get('REMOTE_ADDR'):
+            remote_addr = environ['REMOTE_ADDR']
+        d = {
+            'REMOTE_ADDR': remote_addr,
+            'REMOTE_USER': environ.get('REMOTE_USER') or '-',
+            'REQUEST_METHOD': method,
+            'REQUEST_URI': req_uri,
+            'HTTP_VERSION': environ.get('SERVER_PROTOCOL'),
+            'time': time.strftime('%d/%b/%Y:%H:%M:%S ', start) + offset,
+            'status': status.split(None, 1)[0],
+            'bytes': bytes,
+            'HTTP_REFERER': environ.get('HTTP_REFERER', '-'),
+            'HTTP_USER_AGENT': environ.get('HTTP_USER_AGENT', '-'),
+            }
+        message = self.format % d
+        self.logger.warn(message)
+
+
+def app_wrapper(large_file_threshold, use_webdav):
+    try:
+        from product.DeadlockDebugger.dumper import dump_threads, dump_url
+    except Exception:
+        dump_url = '\0'
+    def app(environ, start_response):
+        path_info = environ['PATH_INFO']
+        if dump_url.startswith(path_info):
+            query_string = environ['QUERY_STRING']
+            if dump_url == (path_info + '?' + query_string if query_string
+                            else path_info):
+                start_response('200 OK', (('Content-type', 'text/plain'),))
+                return [dump_threads()]
+
+        original_wsgi_input = environ['wsgi.input']
+        if not hasattr(original_wsgi_input, 'seek'):
+            # Convert environ['wsgi.input'] to a file-like object.
+            cl = environ.get('CONTENT_LENGTH')
+            cl = int(cl) if cl else 0
+            if cl > large_file_threshold:
+                new_wsgi_input = environ['wsgi.input'] = TemporaryFile('w+b')
+            else:
+                new_wsgi_input = environ['wsgi.input'] = BytesIO()
+
+            rest = cl
+            chunksize = 1<<20
+            try:
+                while chunksize < rest:
+                    new_wsgi_input.write(original_wsgi_input.read(chunksize))
+                    rest -= chunksize
+                if rest:
+                    new_wsgi_input.write(original_wsgi_input.read(rest))
+            except (socket.error, IOError):
+                msg = b'Not enough data in request or socket error'
+                start_response('400 Bad Request', [
+                    ('Content-Type', 'text/plain'),
+                    ('Content-Length', str(len(msg))),
+                    ]
+                )
+                return [msg]
+            new_wsgi_input.seek(0)
+
+        if use_webdav:
+            # Munge the request to ensure that we call manage_FTPGet.
+
+            # Set a flag to indicate this request came through the WebDAV source
+            # port server.
+            environ['WEBDAV_SOURCE_PORT'] = 1
+
+            if environ['REQUEST_METHOD'] == 'GET':
+                if os.sep != '/':
+                    path_info =  path_info.replace(os.sep, '/')
+                path_info = posixpath.join(path_info, 'manage_DAVget')
+                path_info = posixpath.normpath(path_info)
+                environ['PATH_INFO'] = path_info
+
+        return publish_module(environ, start_response)
+    return app
+
+
+def runwsgi():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-w', '--webdav', action='store_true')
+    parser.add_argument('address', help='<ip>:<port>')
+    parser.add_argument('zope_conf', help='path to zope.conf')
+    args = parser.parse_args()
+
+    startup = os.path.dirname(Zope2.Startup.__file__)
+    schema = ZConfig.loadSchema(os.path.join(startup, 'zopeschema.xml'))
+    conf, _ = ZConfig.loadConfig(schema, args.zope_conf)
+
+    make_wsgi_app({}, zope_conf=args.zope_conf)
+
+    z2log = logging.getLogger("access")
+
+    serve(
+        TransLogger(app_wrapper(conf.large_file_threshold, args.webdav),
+                    logger=z2log),
+        listen=args.address,
+        threads=conf.zserver_threads,
+    )