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