[33ea505] | 1 | from .errors import InvalidJobException, InvalidPrinterStateException, InvalidJobStateException |
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| 2 | from .job import GutenbachJob |
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[b01b6d1] | 3 | from gutenbach.ipp import PrinterStates as States |
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[b2e077a] | 4 | import gutenbach.ipp as ipp |
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| 5 | import logging |
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| 6 | import time |
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[eee389a] | 7 | import threading |
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| 8 | import heapq |
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| 9 | import traceback |
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| 10 | import sys |
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| 11 | |
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[d04a689] | 12 | |
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| 13 | # initialize logger |
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| 14 | logger = logging.getLogger(__name__) |
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[776a659] | 15 | |
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[eee389a] | 16 | class GutenbachPrinter(threading.Thread): |
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[b2e077a] | 17 | |
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[1a63bf7] | 18 | # for IPP |
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[33ea505] | 19 | printer_attributes = [ |
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[b2e077a] | 20 | "printer-uri-supported", |
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| 21 | "uri-authentication-supported", |
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| 22 | "uri-security-supported", |
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| 23 | "printer-name", |
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| 24 | "printer-state", |
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| 25 | "printer-state-reasons", |
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| 26 | "ipp-versions-supported", |
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| 27 | "operations-supported", |
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| 28 | "charset-configured", |
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| 29 | "charset-supported", |
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| 30 | "natural-language-configured", |
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| 31 | "generated-natural-language-supported", |
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| 32 | "document-format-default", |
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| 33 | "document-format-supported", |
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| 34 | "printer-is-accepting-jobs", |
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| 35 | "queued-job-count", |
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| 36 | "pdl-override-supported", |
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| 37 | "printer-up-time", |
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[f6e2532] | 38 | "compression-supported", |
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| 39 | "multiple-operation-time-out", |
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| 40 | "multiple-document-jobs-supported", |
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[1a63bf7] | 41 | ] |
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[b2e077a] | 42 | |
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[33ea505] | 43 | job_attributes = [ |
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| 44 | "job-id", |
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| 45 | "job-name", |
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| 46 | "job-originating-user-name", |
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| 47 | "job-k-octets", |
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| 48 | "job-state", |
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| 49 | "job-printer-uri" |
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| 50 | ] |
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| 51 | |
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[f6e2532] | 52 | operations = [ |
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| 53 | "print-job", |
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[33ea505] | 54 | "validate-job", |
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[f6e2532] | 55 | "get-jobs", |
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[33ea505] | 56 | "print-uri", |
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| 57 | "create-job", |
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| 58 | "pause-printer", |
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| 59 | "resume-printer", |
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| 60 | "get-printer-attributes", |
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| 61 | "set-printer-attributes", |
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| 62 | "cancel-job", |
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| 63 | "send-document", |
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| 64 | "send-uri", |
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| 65 | "get-job-attributes", |
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| 66 | "set-job-attributes", |
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| 67 | "restart-job", |
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| 68 | "promote-job" |
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[f6e2532] | 69 | ] |
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| 70 | |
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[609a9b0] | 71 | def __init__(self, name, config, *args, **kwargs): |
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[eee389a] | 72 | |
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[d21198f] | 73 | super(GutenbachPrinter, self).__init__(*args, **kwargs) |
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| 74 | |
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| 75 | self.name = name |
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[609a9b0] | 76 | self.config = config |
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[d21198f] | 77 | self.time_created = int(time.time()) |
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[b2e077a] | 78 | |
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[d21198f] | 79 | self.finished_jobs = [] |
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| 80 | self.pending_jobs = [] |
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| 81 | self.current_job = None |
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| 82 | self.jobs = {} |
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[b2e077a] | 83 | |
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[d21198f] | 84 | self.lock = threading.RLock() |
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| 85 | self.running = False |
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| 86 | self.paused = False |
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[776a659] | 87 | |
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[d21198f] | 88 | # CUPS ignores jobs with id 0, so we have to start at 1 |
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| 89 | self._next_job_id = 1 |
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[b01b6d1] | 90 | |
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| 91 | def __repr__(self): |
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| 92 | return str(self) |
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| 93 | |
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| 94 | def __str__(self): |
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| 95 | return "<Printer '%s'>" % self.name |
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| 96 | |
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[33ea505] | 97 | def run(self): |
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| 98 | self.running = True |
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| 99 | while self.running: |
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| 100 | with self.lock: |
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| 101 | try: |
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| 102 | if self.current_job is None: |
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| 103 | self.start_job() |
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[345c476] | 104 | elif self.current_job.is_done: |
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[33ea505] | 105 | self.complete_job() |
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| 106 | except: |
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| 107 | logger.fatal(traceback.format_exc()) |
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| 108 | sys.exit(1) |
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| 109 | time.sleep(0.1) |
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| 110 | |
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[b01b6d1] | 111 | ###################################################################### |
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| 112 | ### Properties ### |
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| 113 | ###################################################################### |
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| 114 | |
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| 115 | @property |
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| 116 | def uris(self): |
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| 117 | uris = ["ipp://localhost:8000/printers/" + self.name, |
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| 118 | "ipp://localhost/printers/" + self.name] |
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| 119 | return uris |
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| 120 | |
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| 121 | @property |
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| 122 | def uri(self): |
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| 123 | return self.uris[0] |
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| 124 | |
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| 125 | @property |
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[eee389a] | 126 | def state(self): |
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| 127 | with self.lock: |
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| 128 | if self.current_job is not None: |
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| 129 | val = States.PROCESSING |
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| 130 | elif len(self.pending_jobs) == 0: |
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| 131 | val = States.IDLE |
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| 132 | else: |
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| 133 | val = States.STOPPED |
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| 134 | return val |
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| 135 | |
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| 136 | @property |
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| 137 | def active_jobs(self): |
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| 138 | with self.lock: |
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| 139 | jobs = self.pending_jobs[:] |
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| 140 | if self.current_job is not None: |
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| 141 | jobs.insert(0, self.current_job.id) |
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| 142 | return jobs |
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[b01b6d1] | 143 | |
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| 144 | ###################################################################### |
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| 145 | ### Methods ### |
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| 146 | ###################################################################### |
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| 147 | |
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[eee389a] | 148 | def start_job(self): |
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| 149 | with self.lock: |
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| 150 | if self.current_job is None: |
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| 151 | try: |
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| 152 | job_id = heapq.heappop(self.pending_jobs) |
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| 153 | self.current_job = self.get_job(job_id) |
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| 154 | self.current_job.play() |
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| 155 | except IndexError: |
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[d21198f] | 156 | self.current_job = None |
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[eee389a] | 157 | except InvalidJobStateException: |
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| 158 | heapq.heappush(self.pending_jobs, self.current_job.id) |
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| 159 | self.current_job = None |
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| 160 | |
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| 161 | def complete_job(self): |
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| 162 | with self.lock: |
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| 163 | if self.current_job is None: |
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| 164 | return |
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| 165 | |
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| 166 | try: |
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[345c476] | 167 | if not self.current_job.is_done: |
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[eee389a] | 168 | self.current_job.stop() |
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| 169 | finally: |
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[190bfb4] | 170 | self.finished_jobs.append(self.current_job.id) |
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[eee389a] | 171 | self.current_job = None |
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[1a63bf7] | 172 | |
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[eee389a] | 173 | def get_job(self, job_id): |
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| 174 | with self.lock: |
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| 175 | if job_id not in self.jobs: |
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| 176 | raise InvalidJobException(job_id) |
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| 177 | job = self.jobs[job_id] |
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| 178 | return job |
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[b01b6d1] | 179 | |
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| 180 | ###################################################################### |
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| 181 | ### IPP Attributes ### |
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| 182 | ###################################################################### |
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[1a63bf7] | 183 | |
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[b2e077a] | 184 | @property |
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| 185 | def printer_uri_supported(self): |
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[793432f] | 186 | return ipp.PrinterUriSupported(self.uri) |
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[9da7428] | 187 | @printer_uri_supported.setter |
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| 188 | def printer_uri_supported(self, val): |
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| 189 | raise ipp.errors.AttributesNotSettable("printer-uri-supported") |
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[1a63bf7] | 190 | |
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[b2e077a] | 191 | @property |
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| 192 | def uri_authentication_supported(self): |
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[793432f] | 193 | return ipp.UriAuthenticationSupported("none") |
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[9da7428] | 194 | @uri_authentication_supported.setter |
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| 195 | def uri_authentication_supported(self, val): |
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| 196 | raise ipp.errors.AttributesNotSettable("uri-authentication-supported") |
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[b2e077a] | 197 | |
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| 198 | @property |
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| 199 | def uri_security_supported(self): |
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[793432f] | 200 | return ipp.UriSecuritySupported("none") |
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[9da7428] | 201 | @uri_security_supported.setter |
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| 202 | def uri_security_supported(self, val): |
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| 203 | raise ipp.errors.AttributesNotSettable("uri-security-supported") |
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[b2e077a] | 204 | |
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| 205 | @property |
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| 206 | def printer_name(self): |
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[793432f] | 207 | return ipp.PrinterName(self.name) |
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[9da7428] | 208 | @printer_name.setter |
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| 209 | def printer_name(self, val): |
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| 210 | raise ipp.errors.AttributesNotSettable("printer-name") |
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[1a63bf7] | 211 | |
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[b2e077a] | 212 | @property |
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| 213 | def printer_state(self): |
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[b01b6d1] | 214 | return ipp.PrinterState(self.state) |
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[9da7428] | 215 | @printer_state.setter |
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| 216 | def printer_state(self, val): |
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| 217 | raise ipp.errors.AttributesNotSettable("printer-state") |
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[1a63bf7] | 218 | |
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[b2e077a] | 219 | @property |
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| 220 | def printer_state_reasons(self): |
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[793432f] | 221 | return ipp.PrinterStateReasons("none") |
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[9da7428] | 222 | @printer_state_reasons.setter |
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| 223 | def printer_state_reasons(self, val): |
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| 224 | raise ipp.errors.AttributesNotSettable("printer-state-reasons") |
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[b2e077a] | 225 | |
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| 226 | @property |
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| 227 | def ipp_versions_supported(self): |
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[609a9b0] | 228 | return ipp.IppVersionsSupported(*self.config['ipp-versions']) |
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[9da7428] | 229 | @ipp_versions_supported.setter |
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| 230 | def ipp_versions_supported(self, val): |
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| 231 | raise ipp.errors.AttributesNotSettable("ipp-versions-supported") |
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[1a63bf7] | 232 | |
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[f6e2532] | 233 | # XXX: We should query ourself for the supported operations |
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[b2e077a] | 234 | @property |
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| 235 | def operations_supported(self): |
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[793432f] | 236 | return ipp.OperationsSupported(ipp.OperationCodes.GET_JOBS) |
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[9da7428] | 237 | @operations_supported.setter |
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| 238 | def operations_supported(self, val): |
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| 239 | raise ipp.errors.AttributesNotSettable("operations-supported") |
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[b2e077a] | 240 | |
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| 241 | @property |
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| 242 | def charset_configured(self): |
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[9da7428] | 243 | return ipp.CharsetConfigured("utf-8") # XXX |
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| 244 | @charset_configured.setter |
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| 245 | def charset_configured(self, val): |
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| 246 | raise ipp.errors.AttributesNotSettable("charset-configured") |
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| 247 | |
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[b2e077a] | 248 | @property |
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| 249 | def charset_supported(self): |
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[9da7428] | 250 | return ipp.CharsetSupported("utf-8") # XXX |
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| 251 | @charset_supported.setter |
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| 252 | def charset_supported(self, val): |
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| 253 | raise ipp.errors.AttributesNotSettable("charset-supported") |
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[b2e077a] | 254 | |
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| 255 | @property |
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| 256 | def natural_language_configured(self): |
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[793432f] | 257 | return ipp.NaturalLanguageConfigured("en-us") |
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[9da7428] | 258 | @natural_language_configured.setter |
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| 259 | def natural_language_configured(self, val): |
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| 260 | raise ipp.errors.AttributesNotSettable("natural-language-configured") |
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[b2e077a] | 261 | |
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| 262 | @property |
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| 263 | def generated_natural_language_supported(self): |
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[793432f] | 264 | return ipp.GeneratedNaturalLanguageSupported("en-us") |
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[9da7428] | 265 | @generated_natural_language_supported.setter |
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| 266 | def generated_natural_language_supported(self, val): |
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| 267 | raise ipp.errors.AttributesNotSettable("generated-natural-language-supported") |
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[b2e077a] | 268 | |
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| 269 | @property |
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| 270 | def document_format_default(self): |
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[793432f] | 271 | return ipp.DocumentFormatDefault("application/octet-stream") |
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[9da7428] | 272 | @document_format_default.setter |
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| 273 | def document_format_default(self, val): |
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| 274 | raise ipp.errors.AttributesNotSettable("document-format-default") |
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[b2e077a] | 275 | |
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| 276 | @property |
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| 277 | def document_format_supported(self): |
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[793432f] | 278 | return ipp.DocumentFormatSupported("application/octet-stream", "audio/mp3") |
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[9da7428] | 279 | @document_format_supported.setter |
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| 280 | def document_format_supported(self, val): |
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| 281 | raise ipp.errors.AttributesNotSettable("document-format-supported") |
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[b2e077a] | 282 | |
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| 283 | @property |
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| 284 | def printer_is_accepting_jobs(self): |
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[793432f] | 285 | return ipp.PrinterIsAcceptingJobs(True) |
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[9da7428] | 286 | @printer_is_accepting_jobs.setter |
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| 287 | def printer_is_accepting_jobs(self, val): |
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| 288 | raise ipp.errors.AttributesNotSettable("printer-is-accepting-jobs") |
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[b2e077a] | 289 | |
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| 290 | @property |
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| 291 | def queued_job_count(self): |
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[793432f] | 292 | return ipp.QueuedJobCount(len(self.active_jobs)) |
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[9da7428] | 293 | @queued_job_count.setter |
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| 294 | def queued_job_count(self, val): |
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| 295 | raise ipp.errors.AttributesNotSettable("queued-job-count") |
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[b2e077a] | 296 | |
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| 297 | @property |
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| 298 | def pdl_override_supported(self): |
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[793432f] | 299 | return ipp.PdlOverrideSupported("not-attempted") |
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[9da7428] | 300 | @pdl_override_supported.setter |
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| 301 | def pdl_override_supported(self, val): |
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| 302 | raise ipp.errors.AttributesNotSettable("pdl-override-supported") |
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[b2e077a] | 303 | |
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| 304 | @property |
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| 305 | def printer_up_time(self): |
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[793432f] | 306 | return ipp.PrinterUpTime(int(time.time()) - self.time_created) |
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[9da7428] | 307 | @printer_up_time.setter |
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| 308 | def printer_up_time(self, val): |
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| 309 | raise ipp.errors.AttributesNotSettable("printer-up-time") |
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[b2e077a] | 310 | |
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| 311 | @property |
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| 312 | def compression_supported(self): |
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[793432f] | 313 | return ipp.CompressionSupported("none") |
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[9da7428] | 314 | @compression_supported.setter |
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| 315 | def compression_supported(self, val): |
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| 316 | raise ipp.errors.AttributesNotSettable("compression-supported") |
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[b2e077a] | 317 | |
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[f6e2532] | 318 | @property |
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| 319 | def multiple_operation_time_out(self): |
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[793432f] | 320 | return ipp.MultipleOperationTimeOut(240) |
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[9da7428] | 321 | @multiple_operation_time_out.setter |
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| 322 | def multiple_operation_time_out(self, val): |
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| 323 | raise ipp.errors.AttributesNotSettable("multiple-operation-time-out") |
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[f6e2532] | 324 | |
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| 325 | @property |
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| 326 | def multiple_document_jobs_supported(self): |
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[793432f] | 327 | return ipp.MultipleDocumentJobsSupported(False) |
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[9da7428] | 328 | @multiple_document_jobs_supported.setter |
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| 329 | def multiple_document_jobs_supported(self, val): |
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| 330 | raise ipp.errors.AttributesNotSettable("multiple-document-jobs-supported") |
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[f6e2532] | 331 | |
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[33ea505] | 332 | ###################################################################### |
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| 333 | ### Job IPP Attributes ### |
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| 334 | ###################################################################### |
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| 335 | |
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| 336 | def job_id(self, job_id): |
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| 337 | job = self.get_job(job_id) |
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| 338 | return ipp.JobId(job.id) |
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| 339 | |
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| 340 | def job_name(self, job_id): |
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| 341 | job = self.get_job(job_id) |
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| 342 | return ipp.JobName(job.name) |
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| 343 | |
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| 344 | def job_originating_user_name(self, job_id): |
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| 345 | job = self.get_job(job_id) |
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| 346 | return ipp.JobOriginatingUserName(job.creator) |
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| 347 | |
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| 348 | def job_k_octets(self, job_id): |
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| 349 | job = self.get_job(job_id) |
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| 350 | return ipp.JobKOctets(job.size) |
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| 351 | |
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| 352 | def job_state(self, job_id): |
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| 353 | job = self.get_job(job_id) |
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| 354 | return ipp.JobState(job.state) |
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| 355 | |
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| 356 | def job_printer_uri(self, job_id): |
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| 357 | job = self.get_job(job_id) |
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| 358 | return ipp.JobPrinterUri(self.uri) |
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[ee8e6d0] | 359 | |
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[b01b6d1] | 360 | ###################################################################### |
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| 361 | ### IPP Operations ### |
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| 362 | ###################################################################### |
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| 363 | |
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| 364 | def print_job(self): |
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| 365 | pass |
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| 366 | |
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| 367 | def validate_job(self): |
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| 368 | pass |
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| 369 | |
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[33ea505] | 370 | def get_jobs(self, requesting_user_name=None, which_jobs=None, |
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| 371 | requested_attributes=None): |
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| 372 | |
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[b01b6d1] | 373 | # Filter by the which-jobs attribute |
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| 374 | if which_jobs is None: |
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[34a4e5d] | 375 | which_jobs = "not-completed" |
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| 376 | |
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| 377 | if which_jobs == "completed": |
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[b01b6d1] | 378 | jobs = [self.jobs[job_id] for job_id in self.finished_jobs] |
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| 379 | elif which_jobs == "not-completed": |
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| 380 | jobs = [self.jobs[job_id] for job_id in self.active_jobs] |
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[ee8e6d0] | 381 | else: |
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[b01b6d1] | 382 | raise ipp.errors.ClientErrorAttributes( |
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| 383 | which_jobs, ipp.WhichJobs(which_jobs)) |
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[b2e077a] | 384 | |
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[b01b6d1] | 385 | # Filter by username |
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| 386 | if requesting_user_name is None: |
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| 387 | user_jobs = jobs |
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| 388 | else: |
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| 389 | user_jobs = [job for job in jobs if job.creator == requesting_user_name] |
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[33ea505] | 390 | |
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| 391 | # Get the attributes of each job |
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| 392 | job_attrs = [self.get_job_attributes( |
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| 393 | job.id, requested_attributes=requested_attributes) for job in user_jobs] |
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[ee8e6d0] | 394 | |
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[33ea505] | 395 | return job_attrs |
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[ee8e6d0] | 396 | |
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[b01b6d1] | 397 | def print_uri(self): |
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| 398 | pass |
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| 399 | |
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[190bfb4] | 400 | def create_job(self, requesting_user_name=None, job_name=None, job_k_octets=None): |
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[eee389a] | 401 | job_id = self._next_job_id |
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| 402 | self._next_job_id += 1 |
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[ee8e6d0] | 403 | |
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[33ea505] | 404 | job = GutenbachJob( |
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| 405 | job_id, |
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| 406 | creator=requesting_user_name, |
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| 407 | name=job_name) |
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[b01b6d1] | 408 | |
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[ee8e6d0] | 409 | self.jobs[job_id] = job |
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[eee389a] | 410 | self.pending_jobs.append(job_id) |
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[b01b6d1] | 411 | |
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[33ea505] | 412 | return job_id |
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[776a659] | 413 | |
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[b01b6d1] | 414 | def pause_printer(self): |
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[ee8e6d0] | 415 | pass |
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[776a659] | 416 | |
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[b01b6d1] | 417 | def resume_printer(self): |
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| 418 | pass |
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[776a659] | 419 | |
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[b01b6d1] | 420 | def get_printer_attributes(self, requested_attributes=None): |
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| 421 | if requested_attributes is None: |
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[33ea505] | 422 | requested = self.printer_attributes |
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[e58af05] | 423 | else: |
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[33ea505] | 424 | requested = [a for a in self.printer_attributes \ |
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| 425 | if a in requested_attributes] |
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[b2e077a] | 426 | |
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[b01b6d1] | 427 | _attributes = [attr.replace("-", "_") for attr in requested] |
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| 428 | attributes = [getattr(self, attr) for attr in _attributes] |
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| 429 | return attributes |
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[776a659] | 430 | |
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[9da7428] | 431 | def set_printer_attributes(self, job_id, attributes): |
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| 432 | for attr in attributes: |
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| 433 | try: |
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| 434 | setattr(self, attr, attributes[attr]) |
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| 435 | except AttributeError: |
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| 436 | raise ipp.errors.ClientErrorAttributes |
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[33ea505] | 437 | |
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| 438 | def cancel_job(self, job_id, requesting_user_name=None): |
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| 439 | job = self.get_job(job_id) |
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| 440 | try: |
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| 441 | job.cancel() |
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| 442 | except InvalidJobStateException: |
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| 443 | # XXX |
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| 444 | raise |
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| 445 | |
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| 446 | def send_document(self, job_id, document, document_name=None, |
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| 447 | document_format=None, document_natural_language=None, |
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| 448 | requesting_user_name=None, compression=None, |
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| 449 | last_document=None): |
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| 450 | |
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| 451 | job = self.get_job(job_id) |
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[345c476] | 452 | job.spool(document) |
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[33ea505] | 453 | |
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| 454 | def send_uri(self): |
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| 455 | pass |
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| 456 | |
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| 457 | def get_job_attributes(self, job_id, requested_attributes=None): |
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| 458 | if requested_attributes is None: |
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| 459 | requested = self.job_attributes |
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| 460 | else: |
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| 461 | requested = [a for a in self.job_attributes \ |
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| 462 | if a in requested_attributes] |
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| 463 | |
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| 464 | _attributes = [attr.replace("-", "_") for attr in requested] |
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| 465 | attributes = [getattr(self, attr)(job_id) for attr in _attributes] |
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| 466 | return attributes |
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| 467 | |
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[9da7428] | 468 | def set_job_attributes(self, job_id, attributes): |
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| 469 | job = self.get_job(job_id) |
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| 470 | for attr in attributes: |
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| 471 | if attr in ("job-id", "job-k-octets", "job-state", "job-printer-uri"): |
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| 472 | raise ipp.errors.ClientErrorAttributesNotSettable(attr) |
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| 473 | elif attr == "job-name": |
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| 474 | job.name = attributes[attr] |
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| 475 | elif attr == "job-originating-user-name": |
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| 476 | job.creator = attributes[attr] # XXX: do we want this? |
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| 477 | |
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[c1cebbc] | 478 | def restart_job(self, job_id, requesting_user_name=None): |
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| 479 | job = self.get_job(job_id) |
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| 480 | try: |
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| 481 | job.restart() |
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| 482 | except InvalidJobStateException: |
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| 483 | # XXX |
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| 484 | raise ipp.errors.ClientErrorNotPossible |
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| 485 | |
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| 486 | with self.lock: |
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| 487 | self.finished_jobs.remove(job_id) |
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| 488 | self.pending_jobs.append(job_id) |
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[33ea505] | 489 | |
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[c1cebbc] | 490 | def promote_job(self, job_id, requesting_user_name=None): |
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[c500bc2] | 491 | # According to RFC 3998, we need to put the job at the front |
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| 492 | # of the queue (so that when the currently playing job |
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| 493 | # completes, this one will go next |
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| 494 | |
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| 495 | job = self.get_job(job_id) |
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| 496 | job.priority = 1 # XXX we need to actually do something |
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| 497 | # correct here |
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