1 | from gutenbach.server.requests import GutenbachRequestHandler |
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2 | import BaseHTTPServer |
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3 | import gutenbach.ipp as ipp |
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4 | import gutenbach.ipp.constants as const |
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5 | import logging |
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6 | import traceback |
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7 | |
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8 | # initialize logger |
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9 | logger = logging.getLogger(__name__) |
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10 | |
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11 | class GutenbachIPPServer(BaseHTTPServer.BaseHTTPRequestHandler): |
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12 | def setup(self): |
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13 | self.root = GutenbachRequestHandler() |
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14 | BaseHTTPServer.BaseHTTPRequestHandler.setup(self) |
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15 | |
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16 | def handle_one_request(self): |
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17 | self.raw_requestline = self.rfile.readline() |
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18 | if not self.raw_requestline: |
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19 | self.close_connection = 1 |
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20 | return |
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21 | if not self.parse_request(): # An error code has been sent, just exit |
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22 | return |
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23 | self.handle_ipp() |
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24 | |
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25 | def handle_ipp(self): |
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26 | # Receive a request |
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27 | length = int(self.headers.getheader('content-length', 0)) |
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28 | request = ipp.Request(request=self.rfile, length=length) |
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29 | logger.debug("Received request: %s" % repr(request)) |
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30 | |
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31 | # Operation attributes -- typically the same for any request |
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32 | attributes = [ |
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33 | ipp.Attribute( |
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34 | 'attributes-charset', |
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35 | [ipp.Value(ipp.Tags.CHARSET, 'utf-8')]), |
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36 | ipp.Attribute( |
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37 | 'attributes-natural-language', |
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38 | [ipp.Value(ipp.Tags.NATURAL_LANGUAGE, 'en-us')]) |
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39 | ] |
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40 | # Put the operation attributes in a group |
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41 | attribute_group = ipp.AttributeGroup( |
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42 | const.AttributeTags.OPERATION, |
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43 | attributes) |
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44 | |
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45 | # Set up the default response -- handlers will override these |
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46 | # values if they need to |
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47 | response_kwargs = {} |
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48 | response_kwargs['version'] = request.version |
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49 | response_kwargs['operation_id'] = const.StatusCodes.OK |
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50 | response_kwargs['request_id'] = request.request_id |
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51 | response_kwargs['attribute_groups'] = [attribute_group] |
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52 | response = ipp.Request(**response_kwargs) |
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53 | |
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54 | # Get the handler and pass it the request and response objects |
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55 | try: |
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56 | self.root.handle(request, response) |
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57 | except: |
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58 | response.operation_id = const.StatusCodes.INTERNAL_ERROR |
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59 | logger.error(traceback.format_exc()) |
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60 | |
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61 | # Send the response across HTTP |
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62 | logger.debug("Sending response: %s" % repr(response)) |
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63 | self.send_response(200, "Gutenbach IPP Response") |
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64 | self.send_header("Content-Type", "application/ipp") |
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65 | self.send_header("Connection", "close") |
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66 | self.end_headers() |
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67 | self.wfile.write(response.packed_value) |
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