Extension Blocklisting:Code Design

Simple blacklisting for Firefox 1.5

Update model

• Download a blacklist file on a timer (86400 default)
• If items are newly blacklisted or unblacklisted, adjust the datasource appropriately and prompt to restart.
• The blacklist file will be placed in the profile-dir.
• Blacklist is _replaced_ on each update, not merged or otherwise combined.

Blacklist syntax

• The blacklist file has a flexible xml syntax that will use default values for values that are not specified. All Extension Manager items must be children of emItems in order to ease the use of this file for additional blacklist items such as plugins that are not part of an Extension Manager managed item.

Examples:

<blacklist xmlns="http://www.mozilla.org/2006/blacklist">
  <emItems>
    <emItem id="item_1@domain">
      <versionRange minVersion="1.0" maxVersion="2.0.*">
        <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
          <versionRange minVersion="1.5" maxVersion="1.5.*"/>
          <versionRange minVersion="1.7" maxVersion="1.7.*"/>
        </targetApplication>
        <targetApplication id="toolkit@mozilla.org">
          <versionRange minVersion="1.8" maxVersion="1.8.*"/>
        </targetApplication>
      </versionRange>
      <versionRange minVersion="3.0" maxVersion="3.0.*">
        <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
          <versionRange minVersion="1.5" maxVersion="1.5.*"/>
        </targetApplication>
      </versionRange>
        <targetApplication id="toolkit@mozilla.org">
          <versionRange minVersion="1.8" maxVersion="1.8.*"/>
        </targetApplication>
    </emItem>
    <emItem id="item_2@domain">
      <versionRange minVersion="3.1" maxVersion="4.*"/>
    </emItem>
    <emItem id="item_3@domain">
      <versionRange>
        <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
          <versionRange minVersion="1.5" maxVersion="1.5.*"/>
        </targetApplication>
      </versionRange>
    </emItem>
    <emItem id="item_4@domain">
      <versionRange>
        <targetApplication>
          <versionRange minVersion="1.5" maxVersion="1.5.*"/>
        </targetApplication>
      </versionRange>
    <emItem id="item_5@domain"/>
  </emItems>
</blacklist>

• The item_1@domain Extension Manager item will be blacklisted if a version between 1.0 and 2.0.* (e.g. less than 2.1) is installed and the Firefox (e.g. id equal to {ec8030f7-c20a-464f-9b0e-13a3a9e97384}) version is between 1.5 and 1.5.* (e.g. less than 1.6), the Firefox version is between 1.7 and 1.7.* (e.g. less than 1.8), or the Toolkit version is between 1.8 and 1.8.* (e.g. less than 1.9). Also, the item_1@domain Extension Manager item will be blacklisted if a version between 3.0 and 3.0.* (e.g. less than 4.0) is installed and the Firefox (e.g. id equal to {ec8030f7-c20a-464f-9b0e-13a3a9e97384}) version is between 1.5 and 1.5.* (e.g. less than 1.6) or the Toolkit version is between 1.8 and 1.8.* (e.g. less than 1.9).
• The item_2@domain Extension Manager item will be blacklisted if a version between 3.1 and 4.* (e.g. less than 5) is installed for all version of the current application.
• All version of the item_3@domain Extension Manager item will be blacklisted if the Firefox (e.g. id equal to {ec8030f7-c20a-464f-9b0e-13a3a9e97384}) version is between 1.5 and 1.5.* (e.g. less than 1.6).
• All versions of the item_4@domain Extension Manager item will be blacklisted if the current application version is between 1.5 and 1.5.* (e.g. less than 1.6).
• All versions of the item_5@domain Extension Manager item will be blacklisted for all version of the current application.