#!/usr/bin/env python
"""
CGIAdapter.py
This is the CGI Adapter for the WebKit AppServer.
This CGI script collects information about the request, puts it into a
package, and then sends it to the WebKit application server over TCP/IP.
This script expects to find a file in its directory called
'adapter.address' that specifies the address of the app server.
The file is written by the app server upon successful startup
and contains nothing but:
hostname:port
with no other characters, not even a newline. For example,
localhost:8086
or even:
:8086
...since an empty string is a special case indicating the local host.
"""
import sys, os, time
from Adapter import Adapter
class CGIAdapter(Adapter):
def run(self):
response = None
try:
# MS Windows: no special translation of end-of-lines
if os.name == 'nt':
import msvcrt
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
myInput = ''
if os.environ.has_key('CONTENT_LENGTH'):
length = int(os.environ['CONTENT_LENGTH'])
myInput += sys.stdin.read(length)
# 2000-05-20 ce: For use in collecting raw request dictionaries for use in Testing/stress.py
# Leave this code here in case it's needed again:
#counter = int(open('counter.text').read())
#counter += 1
#open('counter.text', 'w').write(str(counter))
#open('rr-%02d.rr' % counter, 'w').write(str(dict))
host, port = open(os.path.join(self._webKitDir, 'adapter.address')).read().split(':', 1)
if os.name == 'nt' and host == '': # MS Windows doesn't like a blank host name
host = 'localhost'
port = int(port)
response = self.transactWithAppServer(os.environ.data, myInput, host, port)
except:
import traceback
sys.stderr.write('[%s] [error] WebKit.CGIAdapter:'
' Error while responding to request (unknown)\n'
% (time.asctime(time.localtime(time.time()))))
sys.stderr.write('Python exception:\n')
traceback.print_exc(file=sys.stderr)
output = ''.join(traceback.format_exception(*sys.exc_info()))
output = "%s
" % HTMLEncode(output)
if response is None:
output = "No response from application server
\n" + output
sys.stdout.write('''Content-type: text/html\n
WebKit CGI Error
WebKit CGI Error
%s
\n''' % output)
def processResponse(self, data):
sys.stdout.write(data)
sys.stdout.flush()
HTMLCodes = [
['&', '&'],
['<', '<'],
['>', '>'],
['"', '"'],
]
def HTMLEncode(s, codes=HTMLCodes):
"""Returns the HTML encoded version of the given string.
This is useful to display a plain ASCII text string on a web page.
(We could get this from WebUtils, but we're keeping CGIAdapter
independent of everything but standard Python.)
"""
for code in codes:
s = s.replace(code[0], code[1])
return s
def main(webKitDir):
CGIAdapter(webKitDir).run()