| 1 | import gutenbach.ipp as ipp |
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| 2 | |
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| 3 | from . import InvalidPrinterStateException, InvalidJobException |
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| 4 | from . import GutenbachPrinter |
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| 5 | from . import GutenbachRequestHandler |
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| 6 | |
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| 7 | import BaseHTTPServer |
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| 8 | import logging |
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| 9 | import sys |
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| 10 | import tempfile |
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| 11 | |
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| 12 | # initialize logger |
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| 13 | logger = logging.getLogger(__name__) |
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| 14 | |
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| 15 | class IPPServer(BaseHTTPServer.BaseHTTPRequestHandler): |
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| 16 | |
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| 17 | def send_continue(self): |
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| 18 | self.send_response(100, "continue") |
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| 19 | self.send_header("Content-Type", "application/ipp") |
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| 20 | self.end_headers() |
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| 21 | |
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| 22 | def send_ok(self, response): |
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| 23 | logger.debug(repr(response)) |
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| 24 | binary, data_file = response.packed_value |
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| 25 | |
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| 26 | self.send_response(200, "ok") |
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| 27 | self.send_header("Content-Type", "application/ipp") |
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| 28 | self.send_header("Connection", "close") |
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| 29 | self.end_headers() |
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| 30 | |
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| 31 | self.wfile.write(binary) |
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| 32 | if data_file is not None: |
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| 33 | data = data_file.read(1024) |
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| 34 | while data != '': |
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| 35 | self.wfile.write(data) |
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| 36 | data = data_file.read(1024) |
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| 37 | |
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| 38 | def log_request(self, code=0, size=0): |
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| 39 | logger.info("response (%s)" % code) |
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| 40 | |
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| 41 | def log_message(self, fmt, *args): |
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| 42 | logger.info(fmt % args) |
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| 43 | |
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| 44 | def read_chunks(self): |
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| 45 | size = sys.maxint |
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| 46 | totalsize = 0 |
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| 47 | |
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| 48 | with tempfile.SpooledTemporaryFile() as tmp: |
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| 49 | while size > 0: |
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| 50 | a, b = self.rfile.read(2) |
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| 51 | size = a + b |
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| 52 | while not (a == "\r" and b == "\n"): |
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| 53 | a = b |
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| 54 | b = self.rfile.read(1) |
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| 55 | size += b |
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| 56 | size = int(size[:-2], base=16) |
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| 57 | totalsize += size |
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| 58 | chunk = self.rfile.read(size) |
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| 59 | clrf = self.rfile.read(2) |
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| 60 | if clrf != "\r\n": |
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| 61 | raise ipp.errors.ServerErrorInternalError( |
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| 62 | "clrf != \\r\\n (is '%s')" % clrf) |
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| 63 | tmp.write(chunk) |
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| 64 | |
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| 65 | tmp.seek(0) |
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| 66 | request = ipp.Request(request=tmp, length=totalsize) |
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| 67 | |
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| 68 | return request |
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| 69 | |
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| 70 | def do_POST(self): |
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| 71 | length = int(self.headers.getheader('content-length', 0)) |
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| 72 | expect = self.headers.getheader('expect', None) |
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| 73 | encoding = self.headers.getheader('transfer-encoding', None) |
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| 74 | |
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| 75 | logger.info("request %s (%d bytes)" % (self.command, length)) |
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| 76 | logger.debug(str(self.headers)) |
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| 77 | |
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| 78 | # Parse the request |
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| 79 | if length == 0 and encoding == "chunked": |
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| 80 | request = self.read_chunks() |
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| 81 | else: |
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| 82 | request = ipp.Request(request=self.rfile, length=length) |
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| 83 | |
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| 84 | # Get the handler and pass it the request and response |
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| 85 | # objects. It will fill in values for the response object or |
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| 86 | # throw a fatal error. |
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| 87 | logger.debug("request: %s" % repr(request)) |
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| 88 | response = GutenbachRequestHandler(self.server.gutenbach_printer).handle(request) |
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| 89 | self.send_ok(response) |
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