def commit(self):
def w(txt):
"""Decode as UTF-8 and write to client connection"""
self.conn.write(bytes(txt, 'UTF-8'))
# TT: blatt6 - default values have been moved to constructor
# TT: to make them available to logging
from server.statuscodes import statuscode
(phrase, explanation) = statuscode(self.code)
w("HTTP/1.1 %d %s\n" % (self.code, phrase))
log(1, "HTTP/1.1 %d %s (%s)\n" % (self.code, phrase, explanation))
import datetime
w("Date: %s\n" %
datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S"))
w("Connection: close\n")
# send cookies
for c in self.cookies:
w(c.get_header())
# send other headers
for key, value in self.headers.items():
w("%s: %s\n" % (key, value))
w("\n") # extra leerzeile schliesst header ab
if self.body:
if isinstance(self.body, str): # UTF-8
w(self.body)
else: # bytes, e.g. binary data
self.conn.write(self.body)
def send(self, code=None, headers=None, body=""):
if not headers:
headers = {}
def w(txt):
"""Decode as UTF-8 and write to client connection"""
self.conn.write(bytes(txt, 'UTF-8'))
# method parameters overwrite/add to instance variables
if code:
self.code = code
if body:
self.body = body
if headers:
self.headers.update(headers)
# Set ETag in Header
tag = self.generate_eTag(self.body)
if tag == self.etag:
self.body = None
self.code = 304
# default values
if not self.code:
self.code = 200
if 'Content-Type' not in self.headers:
self.headers['Content-Type'] = "text/html; charset=utf-8"
from server.statuscodes import statuscode
(phrase, explanation) = statuscode(self.code)
w("HTTP/1.1 %d %s\n" % (self.code, phrase))
log(1, "HTTP/1.1 %d %s (%s)\n" % (self.code, phrase, explanation))
import datetime
w("Date: %s\n" %
datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S"))
w("Content-Type: %s\n" % self.headers['Content-Type'])
w("Connection: close\n")
for key, value in self.headers.items():
w("%s: %s\n" % (key, value))
#Etag Header setzen
w("ETag: {}\n".format(tag))
# Addition: Set proper Content Length
if self.body and not 'Content-Length' in self.headers:
w("Content-Length: %d\n" % len(self.body))
w("\n") # extra leerzeile schliesst header ab
if self.body:
if isinstance(self.body, str):
w(self.body)
else:
self.conn.write(self.body)
def send(self, code=None, headers=None, body=""):
if not headers:
headers = {}
def w(txt):
"""Decode as UTF-8 and write to client connection"""
self.conn.write(bytes(txt, 'UTF-8'))
# method parameters overwrite/add to instance variables
if code:
self.code = code
if body:
self.body = body
if headers:
self.headers.update(headers)
# default values
if not self.code:
self.code = 200
if 'Content-Type' not in self.headers:
self.headers['Content-Type'] = "text/html; charset=UTF-8"
from server.statuscodes import statuscode
(phrase, explanation) = statuscode(self.code)
w("HTTP/1.1 %d %s\n" % (self.code, phrase))
log(1, "HTTP/1.1 %d %s (%s)\n" % (self.code, phrase, explanation))
import datetime
w("Date: %s\n" %
datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S"))
w("Connection: close\n")
for key, value in self.headers.items():
w("%s: %s\n" % (key, value))
# Addition: Set proper Content Length
if self.body and 'Content-Length' not in self.headers:
if isinstance(
self.body, str
): # we need length in bytes, so we might have to convert it first
length = len(bytes(self.body, 'UTF8'))
else:
length = len(self.body)
w("Content-Length: %d\n" % length)
w("\n") # extra leerzeile schliesst header ab
if self.body:
if isinstance(self.body, str):
w(self.body)
else:
self.conn.write(self.body)
def commit(self):
def w(txt):
"""Decode as UTF-8 and write to client connection"""
self.conn.write(bytes(txt, 'UTF-8'))
# default values
if not self.code:
self.code = 200
if 'Content-Type' not in self.headers:
self.headers['Content-Type'] = "text/html; charset=UTF-8"
from server.statuscodes import statuscode
(phrase, explanation) = statuscode(self.code)
w("HTTP/1.1 %d %s\n" % (self.code, phrase))
log(1, "HTTP/1.1 %d %s (%s)\n" % (self.code, phrase, explanation))
import datetime
w("Date: %s\n" %
datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S"))
w("Connection: close\n")
# send cookies
for c in self.cookies:
w(c.get_header())
# send other headers
for key, value in self.headers.items():
w("%s: %s\n" % (key, value))
# Addition: Set proper Content Length
if self.body and 'Content-Length' not in self.headers:
if isinstance(
self.body, str
): # we need length in bytes, so we might have to convert it first
length = len(bytes(self.body, 'UTF8'))
else:
length = len(self.body)
w("Content-Length: %d\n" % length)
w("\n") # extra leerzeile schliesst header ab
if self.body:
if isinstance(self.body, str): # UTF-8
w(self.body)
else: # bytes, e.g. binary data
self.conn.write(self.body)
def send(self, code=None, headers=None, body=""):
if not headers:
headers = {}
def w(txt):
"""Decode as UTF-8 and write to client connection"""
self.conn.write(bytes(txt, 'UTF-8'))
# method parameters overwrite/add to instance variables
if code:
self.code = code
if body:
self.body = body
if headers:
self.headers.update(headers)
# default values
if not self.code:
self.code = 200
if 'Content-Type' not in self.headers:
self.headers['Content-Type'] = "text/html; charset=utf-8"
# Blatt 03: ETag-Handling
etag = None
if self.body and self.code != 304:
import hashlib
if isinstance(self.body, str):
bytes_body = bytes(self.body, 'utf-8')
else:
bytes_body = self.body
etag = hashlib.sha256(bytes_body).hexdigest()
print("Etag computed: %s\nEtag from request: %s\n" %
(etag, self.etag))
if etag == self.etag: # Match found, just send 'not modified' information
return self.send(304)
from server.statuscodes import statuscode
(phrase, explanation) = statuscode(self.code)
w("HTTP/1.1 %d %s\n" % (self.code, phrase))
log(1, "HTTP/1.1 %d %s (%s)\n" % (self.code, phrase, explanation))
import datetime
w("Date: %s\n" %
datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S"))
w("Content-Type: %s\n" % self.headers['Content-Type'])
w("Connection: close\n")
for key, value in self.headers.items():
w("%s: %s\n" % (key, value))
# Addition: Set proper Content Length
if self.body and 'Content-Length' not in self.headers:
w("Content-Length: %d\n" % len(self.body))
# Add Etag-Header
if self.body and self.code != 304:
w('Etag: "%s"\n' % etag)
w("\n") # extra leerzeile schließt header ab
if self.body:
if isinstance(self.body, str):
w(self.body)
else:
self.conn.write(self.body)
