config/chroot_local-hooks/11-localize_browser

   1 #!/bin/sh
   2
   3 set -e
   4
   5 echo "Localize each supported browser locale"
   6
   7 # Import the TBB_INSTALL variable and
   8 # supported_tor_browser_locales(), locale_is_supported_by_tor_browser(), set_mozilla_pref()
   9 . /usr/local/lib/tails-shell-library/tor-browser.sh
  10
  11 # Import language_code_from_locale()
  12 . /usr/local/lib/tails-shell-library/localization.sh
  13
  14 # Import TAILS_WIKI_SUPPORTED_LANGUAGES
  15 . /etc/tails/environment
  16
  17 BROWSER_LOCALIZATION_DIR="/usr/share/tails/browser-localization"
  18 DESCRIPTIONS_FILE="${BROWSER_LOCALIZATION_DIR}/descriptions"
  19 LOCALE_PROFILES_DIR="/etc/tor-browser/locale-profiles/"
  20
  21 # Sanity check that each supported Tor Browser locale has a
  22 # description for how to localize it further.
  23 BROKEN_LOCALES=""
  24 for LOCALE in $(supported_tor_browser_locales); do
  25     if ! grep -q "^${LOCALE}:" "${DESCRIPTIONS_FILE}" 2>/dev/null; then
  26         BROKEN_LOCALES="${BROKEN_LOCALES} ${LOCALE}"
  27     fi
  28 done
  29 if [ -n "${BROKEN_LOCALES}" ]; then
  30     echo "The following supported browser locales lack descriptions in ${DESCRIPTIONS_FILE}:${BROKEN_LOCALES}" >&2
  31     exit 1
  32 fi
  33
  34 # This very long while-loop is fed the DESCRIPTIONS_FILE (IO
  35 # redirection at the bottom), which describes how we will localize
  36 # each supported Tor Browser locale. The format is:
  37 #   MOZILLA_LOCALE:LOCATION
  38 # Note that we're forced to pick some representative location for the
  39 # language-only locales, like Egypt (EG) for Arabic (ar).
  40 while IFS=: read -r MOZILLA_LOCALE LOCATION; do
  41     if [ -z "${MOZILLA_LOCALE}" ] || [ -z "${LOCATION}" ]; then
  42         echo "Something is wrong with ${DESCRIPTIONS_FILE}" >&2
  43         echo "Description: ${MOZILLA_LOCALE}:${LOCATION}" >&2
  44        exit 1
  45     fi
  46
  47     if ! locale_is_supported_by_tor_browser "$MOZILLA_LOCALE"; then
  48         echo "- Skipping localization of ${MOZILLA_LOCALE} for browsers:" \
  49              "not supported by Tor Browser"
  50         continue
  51     fi
  52
  53     echo "- Localizing ${MOZILLA_LOCALE} for browsers..."
  54
  55     # In some places we'll need the locale in xx_YY format instead of
  56     # Mozilla's xx-YY fromat. Over all, the greatest difficulty in
  57     # this whole script is really to know when to use the correct
  58     # locale format, since Firefox isn't very consistent in it.
  59     if echo "${MOZILLA_LOCALE}" | grep -q '-'; then
  60         NORMAL_LOCALE="$(echo "${MOZILLA_LOCALE}" | tr - _)"
  61     else
  62         NORMAL_LOCALE="${MOZILLA_LOCALE}_${LOCATION}"
  63     fi
  64     LANG_CODE="$(language_code_from_locale "${NORMAL_LOCALE}")"
  65
  66     # Our Tor Browser wrapper script will make use of the following
  67     # per-locale profiles to set localized defaults for various prefs.
  68     mkdir -p "${LOCALE_PROFILES_DIR}"
  69     LOCALE_PROFILE_FILE="${LOCALE_PROFILES_DIR}/${MOZILLA_LOCALE}.js"
  70     TBB_DICTIONARIES_DIR="${TBB_INSTALL}/dictionaries"
  71     unset SPELLCHECKER_LOCALE
  72     for LOCALE in "${NORMAL_LOCALE}" "${LANG_CODE}"; do
  73         if [ -e "${TBB_DICTIONARIES_DIR}/${LOCALE}.dic" ]; then
  74             SPELLCHECKER_LOCALE="${LOCALE}"
  75         fi
  76     done
  77     if [ -z "${SPELLCHECKER_LOCALE}" ]; then
  78         SPELLCHECKER_LOCALE="en_US"
  79     fi
  80     set_mozilla_pref "${LOCALE_PROFILE_FILE}" \
  81                           "spellchecker.dictionary" \
  82                           "\"${SPELLCHECKER_LOCALE}\"" \
  83                            "user_pref"
  84     HOMEPAGE="https://tails.net/home/"
  85     . /etc/os-release # get $TAILS_CHANNEL and $TAILS_DISTRIBUTION
  86     if [ "${TAILS_DISTRIBUTION}" = UNRELEASED ] \
  87           || [ "${TAILS_CHANNEL:-stable}" != stable ]; then
  88        HOMEPAGE="${HOMEPAGE}testing/"
  89     fi
  90     if echo "${TAILS_WIKI_SUPPORTED_LANGUAGES}" | grep -qw "${LANG_CODE}"; then
  91         HOMEPAGE="${HOMEPAGE}index.${LANG_CODE}.html"
  92     fi
  93     set_mozilla_pref "${LOCALE_PROFILE_FILE}" \
  94                      "browser.startup.homepage" "\"${HOMEPAGE}\"" "user_pref"
  95     set_mozilla_pref "${LOCALE_PROFILE_FILE}" \
  96                      "browser.startup.homepage.new_identity" "\"${HOMEPAGE}\"" \
  97                      "user_pref"
  98 done < "${DESCRIPTIONS_FILE}"
  99
 100 # This directory is not needed after build time.
 101 rm -r "${BROWSER_LOCALIZATION_DIR}"
 102
 103 # All generated and modified files must remain world-readable.
 104 chmod -R a+rX "${LOCALE_PROFILES_DIR}"