[7bd1035] | 1 | import gutenbach.ipp as ipp |
---|
[e58af05] | 2 | |
---|
| 3 | from . import InvalidPrinterStateException, InvalidJobException |
---|
| 4 | from . import GutenbachPrinter |
---|
| 5 | from . import GutenbachRequestHandler |
---|
| 6 | |
---|
| 7 | import BaseHTTPServer |
---|
[738d179] | 8 | import logging |
---|
[dc40fe9] | 9 | import sys |
---|
[aef164a] | 10 | import traceback |
---|
[7c143c9] | 11 | import tempfile |
---|
[e58af05] | 12 | import threading |
---|
| 13 | import time |
---|
[7bd1035] | 14 | |
---|
| 15 | # initialize logger |
---|
| 16 | logger = logging.getLogger(__name__) |
---|
| 17 | |
---|
[e58af05] | 18 | class GutenbachServer(threading.Thread): |
---|
| 19 | |
---|
| 20 | def run(self): |
---|
| 21 | self.printer = GutenbachPrinter(name="test") |
---|
| 22 | self.request_stop = False |
---|
| 23 | |
---|
| 24 | while not self.request_stop: |
---|
| 25 | job = self.printer.next_job |
---|
| 26 | if job is not None: |
---|
| 27 | try: |
---|
| 28 | self.printer.start_job(job) |
---|
| 29 | except InvalidPrinterStateException: |
---|
| 30 | pass |
---|
| 31 | except: |
---|
| 32 | logger.fatal(traceback.format_exc()) |
---|
| 33 | sys.exit(1) |
---|
| 34 | time.sleep(0.1) |
---|
[7bd1035] | 35 | |
---|
[e58af05] | 36 | class IPPServer(BaseHTTPServer.BaseHTTPRequestHandler): |
---|
| 37 | |
---|
[7c143c9] | 38 | def send_continue(self): |
---|
| 39 | self.send_response(100, "continue") |
---|
| 40 | self.send_header("Content-Type", "application/ipp") |
---|
| 41 | self.end_headers() |
---|
[7bd1035] | 42 | |
---|
[7c143c9] | 43 | def send_ok(self, response): |
---|
| 44 | logger.debug(repr(response)) |
---|
| 45 | binary, data_file = response.packed_value |
---|
[6effd50] | 46 | |
---|
[7c143c9] | 47 | self.send_response(200, "ok") |
---|
[7bd1035] | 48 | self.send_header("Content-Type", "application/ipp") |
---|
| 49 | self.send_header("Connection", "close") |
---|
| 50 | self.end_headers() |
---|
[7c143c9] | 51 | |
---|
[6effd50] | 52 | self.wfile.write(binary) |
---|
[7c143c9] | 53 | if data_file is not None: |
---|
| 54 | data = data_file.read(1024) |
---|
| 55 | while data != '': |
---|
| 56 | self.wfile.write(data) |
---|
| 57 | data = data_file.read(1024) |
---|
| 58 | |
---|
| 59 | def log_request(self, code=0, size=0): |
---|
| 60 | logger.info("response (%s)" % code) |
---|
| 61 | |
---|
| 62 | def log_message(self, fmt, *args): |
---|
| 63 | logger.info(fmt % args) |
---|
| 64 | |
---|
| 65 | def read_chunks(self): |
---|
| 66 | size = sys.maxint |
---|
| 67 | totalsize = 0 |
---|
| 68 | |
---|
| 69 | with tempfile.SpooledTemporaryFile() as tmp: |
---|
| 70 | while size > 0: |
---|
| 71 | a, b = self.rfile.read(2) |
---|
| 72 | size = a + b |
---|
| 73 | while not (a == "\r" and b == "\n"): |
---|
| 74 | a = b |
---|
| 75 | b = self.rfile.read(1) |
---|
| 76 | size += b |
---|
| 77 | size = int(size[:-2], base=16) |
---|
| 78 | totalsize += size |
---|
| 79 | chunk = self.rfile.read(size) |
---|
| 80 | clrf = self.rfile.read(2) |
---|
| 81 | assert clrf == "\r\n" |
---|
| 82 | tmp.write(chunk) |
---|
| 83 | |
---|
| 84 | tmp.seek(0) |
---|
| 85 | request = ipp.Request(request=tmp, length=totalsize) |
---|
| 86 | |
---|
| 87 | return request |
---|
| 88 | |
---|
| 89 | def do_POST(self): |
---|
| 90 | length = int(self.headers.getheader('content-length', 0)) |
---|
| 91 | expect = self.headers.getheader('expect', None) |
---|
| 92 | encoding = self.headers.getheader('transfer-encoding', None) |
---|
| 93 | |
---|
| 94 | logger.info("request %s (%d bytes)" % (self.command, length)) |
---|
| 95 | logger.debug(str(self.headers)) |
---|
| 96 | |
---|
| 97 | # Parse the request |
---|
| 98 | if length == 0 and encoding == "chunked": |
---|
| 99 | request = self.read_chunks() |
---|
| 100 | else: |
---|
| 101 | request = ipp.Request(request=self.rfile, length=length) |
---|
| 102 | |
---|
| 103 | # Get the handler and pass it the request and response |
---|
| 104 | # objects. It will fill in values for the response object or |
---|
| 105 | # throw a fatal error. |
---|
| 106 | logger.debug("request: %s" % repr(request)) |
---|
[e58af05] | 107 | response = GutenbachRequestHandler(self.server.gutenbach_server).handle(request) |
---|
[7c143c9] | 108 | self.send_ok(response) |
---|