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  1. Confluence Data Center
  2. CONFSERVER-43470

Unable to install add-on from Confluence attachment URL

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      Summary

      Unable to install add-on from Confluence attachment url

      Steps to Reproduce

      1. Install a vanilla Confluence 5.10.X instance
      2. Access the instance and uploaded a valid OBR file as an attachment
      3. Copy the URL to the attachment
      4. Go to -> Add-Ons
      5. Click on Upload add-on
      6. Paste the URL we copied to the "From this URL" field
      7. Click upload

      Expected Results

      The URL is pointing to a valid OBR file, so the add-on should be uploaded as stated in the guide Installing by file upload

      Actual Results

      The below exception is thrown in the atlassian-confluence.log file:

      2016-08-15 18:50:17,191 ERROR [UpmAsynchronousTaskManager:thread-1] [rest.resources.install.InstallFromUriTask] download Error downloading plugin from http://localhost:PORT/confluence/download/attachments/folder/fileName.obr?api=v2
 -- url: /confluence/rest/plugins/1.0/ | referer: http://localhost:PORT/confluence/plugins/servlet/upm | userName: admin

      Notes

      Also tested this using a publically accessible Confluence instance using SSL and a domain. The issue is the same with other file types such as JAR. Additionally, the issue can be replicated in other applications that use UPM such as JIRA, meaning this us a UPM issue not specific to one application. This same behavior happens in the following tested versions of UPM:

      2.18.2
      2.18.4
      2.18.5
      2.19.1
      2.20.0
      2.21.0
      2.21.3

      Workaround

      The workaround is to download the file in a browser and upload via the "From my computer" option:

      1. Go to -> Add-Ons
      2. Click on Upload add-on
      3. Select the file using the "From my computer" option
      4. Click upload

            [CONFSERVER-43470] Unable to install add-on from Confluence attachment URL

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            Remote Link Original: This issue links to "DEVHELP-1108 (Ecosystem Jira)" [ 359201 ] New: This issue links to "DEVHELP-1108 (Ecosystem JIRA)" [ 359201 ]
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            Workflow Original: JAC Bug Workflow [ 2708521 ] New: JAC Bug Workflow v2 [ 2797844 ]
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            Symptom Severity Original: Minor [ 14432 ] New: Severity 3 - Minor [ 15832 ]
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            Workflow Original: Confluence Workflow - Public Facing - Restricted v5 - TEMP [ 2394391 ] New: JAC Bug Workflow [ 2708521 ]
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              Unassigned Unassigned
              ajean Andy J.
              Affected customers:
              3 This affects my team
              Watchers:
              8 Start watching this issue

                Created:
                Updated: