http://bugs.openzim.org/show_bug.cgi?id=26
Summary: CRC check
Product: openZIM
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P3
Component: zimlib
AssignedTo: tommi(a)tntnet.org
ReportedBy: emmanuel(a)engelhart.org
CC: dev-l(a)openzim.org
Estimated Hours: 0.0
Downloaded ZIM files are unfortunately not always fully valid at the end of the
download stage. Consequently users may have a bad user experience without
having a chance to easily check if the file is valid.
It would be great to provide in the zimwriter/zimlib a way to check the zim
file integrity easily.
A way to achieve that could be:
* At the end of the ZIM file creation process (file is created) compute and
append at the end of the file a CRC (md5sum, sha1)
* In the zimlib add a method checkIntegrity() or something similar able to
compute the CRC from the file (excepting the CRC hash at the end) and make the
comparison.
Hash algorithm should be fast and reliable (md5?).
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