Set browser name to I2P Browser

TorButton forcefully sets the browser name to Tor Browser, but this
browser doesn't use Tor. To try to prevent confusion I'm overriding that
behavior.

config/chroot_local-includes/usr/local/sbin/i2p-browser

@@ -27,6 +27,7 @@ START_PAGE="http://127.0.0.1:7657"
 
 NOSCRIPT="${TBB_INSTALL}/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi"
 TORBUTTON="${TBB_INSTALL}/extensions/torbutton@torproject.org"
+NAME="`gettext \"I2P Browser\"`"
 
 if [ -e /var/lib/gdm3/tails.camouflage ]; then
     CAMOUFLAGE=yes
@@ -144,18 +145,25 @@ configure_chroot () {
 
     # Keep the NoScript and TorButton addons
     chroot ${CHROOT} dpkg -l 'xul-ext*' |grep -v 'noscript\|torbutton' \
-            | awk '/^ii/{print $2}' | xargs chroot ${CHROOT} dpkg --remove
+            | awk '/^ii/{print $2}' | xargs -r chroot ${CHROOT} dpkg --remove
 
     # Create a fresh Tor Browser profile for the i2pbrowser user
     BROWSER_PROFILE="${CHROOT}/home/${BROWSER_USER}/.tor-browser/profile.default"
     BROWSER_EXT="${BROWSER_PROFILE}/extensions"
     mkdir -p "${BROWSER_EXT}"
     ln -s "${NOSCRIPT}" "${BROWSER_EXT}"
-    ln -s "${TORBUTTON}" "${BROWSER_EXT}"
+    # TorButton forces the Browser name to Tor Browser. This hack is to undo that and set it to I2P Browser
+    # to try to prevent user confusion.
+    #ln -s "${TORBUTTON}" "${BROWSER_EXT}"
+    TMP=$(mktemp -d)
+    cp -a /usr/share/xul-ext/torbutton/ $TMP
     for LANGPACK in $(ls ${TBB_PROFILE}/extensions/langpack-*.xpi); do
         ln -s "${LANGPACK}" "${BROWSER_EXT}"
     done
-
+    find $TMP/torbutton  -name 'brand.dtd' -print0 | \
+       xargs -0 -r sed -i "s/<"'!'"ENTITY\s\+brand\(Full\|Short\)Name.*$/<"'!'"ENTITY brand\1Name \"${NAME}\">/"
+    cd $TMP/torbutton && 7z a -tzip "${BROWSER_EXT}/torbutton@torproject.org.xpi" .
+    rm -r $TMP
     BROWSER_PREF_DIR="${BROWSER_PROFILE}/preferences"
     BROWSER_PREFS="${BROWSER_PREF_DIR}/prefs.js"
     mkdir -p "${BROWSER_PREF_DIR}"