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annotate OrthancServer/Resources/Samples/Python/Replicate.py @ 4688:177ad026d219

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backward compatibility with old DicomModification serialization from Orthanc <= 1.6.1
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 10 Jun 2021 10:09:54 +0200
parents 844ec5ecb6ef
children 7053502fbf97
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1 #!/usr/bin/python
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2
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3 # Orthanc - A Lightweight, RESTful DICOM Store
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4 # Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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5 # Department, University Hospital of Liege, Belgium
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6 # Copyright (C) 2017-2021 Osimis S.A., Belgium
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7 #
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8 # This program is free software: you can redistribute it and/or
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9 # modify it under the terms of the GNU General Public License as
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10 # published by the Free Software Foundation, either version 3 of the
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11 # License, or (at your option) any later version.
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12 #
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13 # This program is distributed in the hope that it will be useful, but
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14 # WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU General Public License
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20
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21
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22 import base64
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23 import httplib2
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24 import json
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25 import re
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26 import sys
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27
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28 URL_REGEX = re.compile('(http|https)://((.+?):(.+?)@|)(.*)')
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29
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30
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31 if len(sys.argv) != 3:
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32 print("""
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33 Script to copy the content of one Orthanc server to another Orthanc
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34 server through their REST API.
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35
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36 Usage: %s [SourceURI] [TargetURI]
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37 For instance: %s http://orthanc:password@127.0.0.1:8042/ http://127.0.0.1:8043/
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38 """ % (sys.argv[0], sys.argv[0]))
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39 exit(-1)
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41
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42
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43 def CreateHeaders(parsedUrl):
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44 headers = { }
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45 username = parsedUrl.group(3)
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46 password = parsedUrl.group(4)
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47
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48 if username != None and password != None:
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49 # This is a custom reimplementation of the
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50 # "Http.add_credentials()" method for Basic HTTP Access
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51 # Authentication (for some weird reason, this method does not
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52 # always work)
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53 # http://en.wikipedia.org/wiki/Basic_access_authentication
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54
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55 # The ".encode()" and ".decode()" below fix the following issue:
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56 # https://groups.google.com/g/orthanc-users/c/KZ_iYOet5IQ/m/AUQWiSiAAQAJ
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57 credentials = (username + ':' + password)
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58 credentials_base64 = base64.b64encode(credentials.encode("ascii")).decode("ascii")
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59 headers['authorization'] = 'Basic ' + credentials_base64
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60
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61 return headers
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62
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63
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64 def GetBaseUrl(parsedUrl):
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65 return '%s://%s' % (parsedUrl.group(1), parsedUrl.group(5))
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66
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67
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68 def DoGetString(url):
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69 global URL_REGEX
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70 parsedUrl = URL_REGEX.match(url)
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71 headers = CreateHeaders(parsedUrl)
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72
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73 h = httplib2.Http()
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74 resp, content = h.request(GetBaseUrl(parsedUrl), 'GET', headers = headers)
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75
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76 if resp.status == 200:
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77 return content
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78 else:
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79 raise Exception('Unable to contact Orthanc at: ' + url)
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80
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81
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82 def DoPostDicom(url, body):
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83 global URL_REGEX
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84 parsedUrl = URL_REGEX.match(url)
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85 headers = CreateHeaders(parsedUrl)
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86 headers['content-type'] = 'application/dicom'
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87
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88 h = httplib2.Http()
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89 resp, content = h.request(GetBaseUrl(parsedUrl), 'POST',
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90 body = body,
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91 headers = headers)
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92
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93 if resp.status != 200:
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94 raise Exception('Unable to contact Orthanc at: ' + url)
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95
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96
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97 def _DecodeJson(s):
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98 if (sys.version_info >= (3, 0)):
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99 return json.loads(s.decode())
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100 else:
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101 return json.loads(s)
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102
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103
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104 def DoGetJson(url):
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105 return _DecodeJson(DoGetString(url))
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106
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107
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108 SOURCE = sys.argv[1]
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109 TARGET = sys.argv[2]
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110
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111 for study in DoGetJson('%s/studies' % SOURCE):
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112 print('Sending study %s...' % study)
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113 for instance in DoGetJson('%s/studies/%s/instances' % (SOURCE, study)):
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114 dicom = DoGetString('%s/instances/%s/file' % (SOURCE, instance['ID']))
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115 DoPostDicom('%s/instances' % TARGET, dicom)