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Difference between revisions of "Equinox/p2/Proposals/StoringChecksums"
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| + | p2 is able to check integrity of downloaded artifacts using [https://en.wikipedia.org/wiki/MD5 MD5 algorithm] only. {{bug|423715}} is going to add support for SHA-256 algorithm but the way artifact's MD5 checksum stored in artifact metadata is not ready for such minor extension ([https://git.eclipse.org/r/59612 Gerrit change #59612] shows how adding SHA-256 support looks like using the same approach as MD5). | ||
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| + | In a long run, however, this solution is not future-proof. | ||
| + | |||
== Separate property for every checksum type (artifact + download) and supprted algorithm == | == Separate property for every checksum type (artifact + download) and supprted algorithm == | ||
Ugly and hard to extend: | Ugly and hard to extend: | ||
Revision as of 09:06, 26 March 2016
p2 is able to check integrity of downloaded artifacts using MD5 algorithm only. bug 423715 is going to add support for SHA-256 algorithm but the way artifact's MD5 checksum stored in artifact metadata is not ready for such minor extension (Gerrit change #59612 shows how adding SHA-256 support looks like using the same approach as MD5).
In a long run, however, this solution is not future-proof.
Contents
Separate property for every checksum type (artifact + download) and supprted algorithm
Ugly and hard to extend:
<artifact classifier='osgi.bundle' id='org.eclipse.osgi' version='3.4.3.R34x_v20081215-1030'>
<properties>
<property name='artifact.md5' value='58057045158895009b845b9a93f3eb6e'/>
<property name='artifact.sha256' value='58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e'/>
<property name='download.md5' value='58057045158895009b845b9a93f3eb6e'/>
<property name='download.sha256' value='58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e'/>
</properties>
</artifact>
Separate property for artifact and download checksums
With a map(checksumAlgo, checksumValue) - still ugly but easier to extend:
<artifact classifier='osgi.bundle' id='org.eclipse.osgi' version='3.4.3.R34x_v20081215-1030'>
<properties>
<property name='artifact.checksums' value='md5=58057045158895009b845b9a93f3eb6e;sha256=58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e'/>
<property name='download.checksums' value='md5=58057045158895009b845b9a93f3eb6e;sha256=58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e'/>
</properties>
</artifact>
XML way, #1
<artifact classifier='osgi.bundle' id='org.eclipse.osgi' version='3.4.3.R34x_v20081215-1030'>
<checksums>
<checksum>
<property name='algorithm' value='md5'/>
<property name='artifact' value='58057045158895009b845b9a93f3eb6e'/>
<property name='download' value='58057045158895009b845b9a93f3eb6e'/>
</checksum>
</checksums>
</artifact>
XML way, #2
<artifact classifier='osgi.bundle' id='org.eclipse.osgi' version='3.4.3.R34x_v20081215-1030'>
<checksums>
<checksum
algorithm="md5"
download="58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e"
artifact="58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e"/>
</checksums>
</artifact>
XML way, #3
<artifact classifier='osgi.bundle' id='org.eclipse.osgi' version='3.4.3.R34x_v20081215-1030'>
<checksums>
<checksum>
<algorithm>sha256</algorithm>
<download>58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e</download>
<artifact>58057045158895009b845b9a93f3eb6e58057045158895009b845b9a93f3eb6e</artifact>
</checksum>
</checksums>
</artifact>