Mercurial > hg > orthanc-book
comparison Sphinx/source/faq/troubleshooting.rst @ 193:99ba212989cc
Added entry related to MD5 integrity file checking
| author | bgo-osimis |
|---|---|
| date | Sun, 03 Feb 2019 14:44:14 +0100 |
| parents | 60c91045bf2a |
| children | 011b01ccf52d |
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| 192:14735c696623 | 193:99ba212989cc |
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| 106 advantage of this patch, you need to statically link Orthanc against | 106 advantage of this patch, you need to statically link Orthanc against |
| 107 DCMTK by using the ``-DUSE_SYSTEM_DCMTK=OFF`` flag `when invoking | 107 DCMTK by using the ``-DUSE_SYSTEM_DCMTK=OFF`` flag `when invoking |
| 108 CMake | 108 CMake |
| 109 <https://bitbucket.org/sjodogne/orthanc/src/default/LinuxCompilation.txt>`__. | 109 <https://bitbucket.org/sjodogne/orthanc/src/default/LinuxCompilation.txt>`__. |
| 110 | 110 |
| 111 Checking DICOM file integrity | |
| 112 ----------------------------- | |
| 113 Orthanc stores, in its database, an `MD5 hash <https://en.wikipedia.org/wiki/MD5>`_ of the DICOM file contents. | |
| 114 | |
| 115 This MD5 corresponds to the hash of the DICOM file in memory, before it is written to the disk by Orthanc. This information is safely stored inside the database for any incoming DICOM file (provided that the ``StoreMD5ForAttachments`` configuration option is set to ``true``). | |
| 116 | |
| 117 It ispossible to ask Orthanc to check by itself whether the DICOM file was corrupted (i.e. to check whether the MD5 hash stored in the database corresponds to the hash of the file on the disk): | |
| 118 | |
| 119 ``curl -X POST http://localhost:8042/instances/f257b066-f3992cc4-ca6a5e5f-3f8dcf3a-d4958939/attachments/dicom/verify-md5 -d ''`` | |
| 120 | |
| 121 This MD5 may be different if errors occurred while the DICOM file was initially written to the storage, or if the file contents were tampered with afterwards. | |
| 122 | |
| 123 You can retrieve the stored MD5 hash of a DICOM instance as follows: | |
| 124 | |
| 125 ``curl http://localhost:8042/instances/f257b066-f3992cc4-ca6a5e5f-3f8dcf3a-d4958939/attachments/dicom/md5`` | |
| 111 | 126 |
| 112 Windows-specific issues | 127 Windows-specific issues |
| 113 ----------------------- | 128 ----------------------- |
| 114 | 129 |
| 115 * Under Windows, Orthanc creates the "OrthancStorage" folder, and | 130 * Under Windows, Orthanc creates the "OrthancStorage" folder, and |