Mercurial > hg > orthanc-stl

annotate Resources/EmbedStaticAssets.py @ 59:21335e91225e nexus

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closing nexus
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 21 May 2024 16:03:07 +0200
parents 9b2a2fcc9878
children b798387b085c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/python3
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2
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3 # SPDX-FileCopyrightText: 2023-2024 Sebastien Jodogne, UCLouvain, Belgium
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4 # SPDX-License-Identifier: GPL-3.0-or-later
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5
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6 # STL plugin for Orthanc
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7 # Copyright (C) 2023-2024 Sebastien Jodogne, UCLouvain, Belgium
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8 #
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9 # This program is free software: you can redistribute it and/or
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10 # modify it under the terms of the GNU General Public License as
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11 # published by the Free Software Foundation, either version 3 of the
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12 # License, or (at your option) any later version.
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13 #
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14 # This program is distributed in the hope that it will be useful, but
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15 # WITHOUT ANY WARRANTY; without even the implied warranty of
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 # General Public License for more details.
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18 #
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19 # You should have received a copy of the GNU General Public License
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20 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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23 import gzip
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24 import hashlib
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25 import io
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26 import os
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27 import sys
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28
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29 if len(sys.argv) <= 2:
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30 raise Exception('Usage: %s [target C++] [source folders]' % sys.argv[0])
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32 SOURCES = sys.argv[2:]
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33 TARGET = sys.argv[1]
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34
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35 for source in SOURCES:
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36 if not os.path.isdir(source):
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37 raise Exception('Nonexistent source folder: %s' % source)
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40 def EncodeFileAsCString(f, variable, content):
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41 f.write('static const uint8_t %s[%d] = \n "' % (variable, len(content) + 1))
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42
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43 column = 0
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44
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45 for c in content:
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47 if sys.version_info < (3, 0):
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48 # Python 2.7
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49 i = ord(c)
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50 else:
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51 # Python 3.x
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52 i = c
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53
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54 if i < 32 or i >= 127 or i == ord('?'):
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55 f.write('\\{0:03o}'.format(i))
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56 elif i in [ ord('"'), ord('\\') ]:
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57 f.write('\\' + chr(i))
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58 else:
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59 f.write(chr(i))
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60
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61 column += 1
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62 if column >= 120:
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63 f.write('"\n "')
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64 column = 0
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65
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66 f.write('";\n\n')
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69 def WriteChecksum(f, variable, content):
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70 md5 = hashlib.md5(content).hexdigest()
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71 g.write('static const char* %s = "%s";\n\n' % (variable, md5))
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72
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73
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74 with open(TARGET, 'w') as g:
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75 g.write('''
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76 #include <stdint.h>
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77 #include <Compression/GzipCompressor.h>
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78 #include <OrthancException.h>
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79 #include <Toolbox.h>
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80
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81 static void Uncompress(std::string& target, const void* data, size_t size, const std::string& md5Expected)
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82 {
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83 Orthanc::GzipCompressor compressor;
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84 compressor.Uncompress(target, data, size);
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85 std::string md5Actual;
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86 Orthanc::Toolbox::ComputeMD5(md5Actual, target);
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87 if (md5Actual != md5Expected)
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88 {
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89 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile);
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90 }
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91 }
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92
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93 ''')
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94
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95 index = {}
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96 count = 0
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97
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98 for source in SOURCES:
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99 for root, dirs, files in os.walk(source):
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100 files.sort()
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101 dirs.sort()
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102
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103 for f in files:
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104 fullPath = os.path.join(root, f)
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105 relativePath = os.path.relpath(os.path.join(root, f), source)
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106 variable = 'data_%06d' % count
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107
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108 with open(fullPath, 'rb') as f:
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109 content = f.read()
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110
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111 if sys.version_info < (3, 0):
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112 # Python 2.7
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113 fileobj = io.BytesIO()
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114 gzip.GzipFile(fileobj=fileobj, mode='w', mtime=0).write(content)
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115 compressed = fileobj.getvalue()
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116 else:
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117 # Python 3.x
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118 compressed = gzip.compress(content, mtime=0)
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119
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120 EncodeFileAsCString(g, variable, compressed)
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121 WriteChecksum(g, variable + '_md5', content)
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122
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123 index[relativePath] = variable
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124
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125 count += 1
0
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126
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127 g.write('void ReadStaticAsset(std::string& target, const std::string& path)\n')
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128 g.write('{\n')
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129 for (path, variable) in sorted(index.items()):
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130 g.write(' if (path == "%s")\n' % path)
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131 g.write(' {\n')
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132 g.write(' Uncompress(target, %s, sizeof(%s) - 1, %s_md5);\n' % (variable, variable, variable))
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133 g.write(' return;\n')
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134 g.write(' }\n\n')
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
135
4e889a8e8be2 initial commit of the viewer plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
136 g.write(' throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentItem, "Unknown Three.js resource: " + path);\n')
4e889a8e8be2 initial commit of the viewer plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
137 g.write('}\n')