10-tbb 7.64 KB
Newer Older
1
2
3
4
5
6
#!/bin/sh

set -eu

echo "Install the Tor Browser"

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
# Import the TBB_INSTALL, TBB_PROFILE and TBB_EXT variables, which
# contains the paths we will split TBB's actual browser (binaries
# etc), user data and extension into. While this differs from how the
# TBB organizes the files, the end result will be the same, and it's
# practical since when creating a new browser profile we can simply
# copy the profile directory without duplicating all extensions.
. /usr/local/lib/tails-shell-library/tor-browser.sh

download_and_verify_files() {
    local base_url bundles destination apt_proxy
    base_url="${1}"
    bundles="${2}"
    destination="${3}"

    # Use the builder's caching APT proxy, if any
    apt_proxy="$(apt-config --format '%v' dump Acquire::http::Proxy)"
    if [ -n "${apt_proxy}" ]; then
        export HTTP_PROXY="${apt_proxy}"
        export http_proxy="${apt_proxy}"
        export HTTPS_PROXY="${apt_proxy}"
        export https_proxy="${apt_proxy}"
    fi

    echo "${bundles}" | while read expected_sha256 tarball; do
        (
            cd "${destination}"
            echo "Fetching ${base_url}/${tarball} ..."
            curl --remote-name "${base_url}/${tarball}"
        )
        actual_sha256="$(sha256sum "${destination}/${tarball}" | cut -d' ' -f1)"
        if [ "${actual_sha256}" != "${expected_sha256}" ]; then
            echo "SHA256 mismatch for ${tarball}" >&2
            exit 1
        fi
    done
}

44
45
46
47
48
49
50
install_tor_browser() {
    local bundle destination tmp prep
    bundle="${1}"
    destination="${2}"

    tmp="$(mktemp -d)"
    tar -xf "${bundle}" -C "${tmp}" tor-browser_en-US
51
    prep="${tmp}"/tor-browser_en-US/Browser
52
53
54
55

    # Enable our myspell/hunspell dictionaries. TBB only provides the
    # one for en-US, but Debian's seems more comprehensive, so we'll
    # only use Debian's dictionaries.
56
    rm -f "${prep}"/dictionaries/*
57
    for f in /usr/share/hunspell/*.aff /usr/share/hunspell/*.dic; do
Tails developers's avatar
Tails developers committed
58
        ln -s "${f}" "${prep}"/dictionaries/
59
60
    done

61
62
63
64
65
66
    # The libstdc++6 package in Wheezy is too old, so we need the
    # bundled one.
    cp "${prep}"/TorBrowser/Tor/libstdc++.so.6 "${prep}"

    # We don't need the Tor binary, the shared libraries Tor needs
    # (but Firefox doesn't) and documentation shipped in the TBB.
67
68
    rm -r "${prep}"/TorBrowser/Tor "${prep}"/TorBrowser/Docs

69
70
71
72
    # We don't want tor-launcher to be part of the regular browser
    # profile. Moreover, for the stand-alone tor-launcher we use, we
    # need our patched version. So, the version shipped in the TB
    # really is not useful for us.
73
    rm "${prep}/TorBrowser/Data/Browser/profile.default/extensions/tor-launcher@torproject.org.xpi"
74
75
76
77

    # Remove TBB's torbutton since the "Tor test" will fail and about:tor
    # will report an error. We'll install our own Torbutton later, which
    # has the extensions.torbutton.test_enabled boolean pref as a workaround.
78
    rm "${prep}/TorBrowser/Data/Browser/profile.default/extensions/torbutton@torproject.org.xpi"
79
80

    # The Tor Browser will fail, complaining about an incomplete profile,
81
    # unless there's a readable TorBrowser/Data/Browser/Caches
82
    # in the directory where the firefox executable is located.
83
84
85
    mkdir -p "${prep}"/TorBrowser/Data/Browser/Caches

    mv "${prep}" "${destination}"
86
87
88
89

    rm -r "${tmp}"
}

90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
install_langpacks_from_bundles() {
    local bundles_dir destination
    bundles_dir="${1}"
    destination="${2}"

    for tarball in "${bundles_dir}"/tor-browser-*.tar.xz; do
        locale="$(echo "${tarball}" | sed "s@^.*/tor-browser-.*_\(.*\)\.tar\.xz@\1@")"
        if [ "${locale}" = en-US ]; then
            continue
        fi
        xpi="tor-browser_${locale}/Browser/TorBrowser/Data/Browser/profile.default/extensions/langpack-${locale}@firefox.mozilla.org.xpi"
        (
            cd "${bundles_dir}"
            tar -xf "${tarball}" "${xpi}"
            mv "${xpi}" "${destination}"
        )
    done
}

109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
get_firefox_version() {
    # The application.ini file
    local appini
    appini="${1}"
    sed -n 's/^Version=\(.*\)$/\1/p' "${appini}"
}

# Create and install a fake iceweasel package so we can install our
# desired Debian-packaged Iceweasel addons
install_fake_iceweasel_pkg() {
    local fake_version tmp
    fake_version="${1}"
    tmp="$(mktemp -d)"
    apt-get install --yes equivs
    cat > "${tmp}"/iceweasel.control << EOF
Section: web
Priority: optional
Homepage: https://tails.boum.org/
Standards-Version: 3.6.2

Package: iceweasel
Version: ${fake_version}
Maintainer: Tails developers <amnesia@boum.org>
Architecture: all
Description: (Fake) Iceweasel
 Make it possible to install Debian's Iceweasel addons without having to
 install a real Iceweasel.
EOF
    (
        cd "${tmp}"
        equivs-build "${tmp}"/iceweasel.control
        dpkg -i "${tmp}"/iceweasel_"${fake_version}"_all.deb
    )
    rm -R "${tmp}"
}

install_debian_extensions() {
146
147
148
    local destination
    destination="${1}"
    apt-get install --yes "${@}"
149
150
151
152
153
154
    ln -s /usr/share/xul-ext/adblock-plus/ \
          "${destination}"/'{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}'
    ln -s /usr/share/xul-ext/torbutton/ \
          "${destination}"/torbutton@torproject.org
}

155
create_default_profile() {
156
157
158
    local tbb_profile extensions_dir destination
    tbb_profile="${1}"
    tbb_extensions_dir="${2}"
159
160
161
    destination="${3}"

    rsync -a --exclude bookmarks.html --exclude extensions \
162
          "${tbb_profile}"/ "${destination}"/
163
164
165
166
167

    # Remove TBB's default bridges
    sed -i '/extensions\.torlauncher\.default_bridge\./d' "${destination}"/preferences/extension-overrides.js

    mkdir -p "${destination}"/extensions
168
    for ext in "${tbb_extensions_dir}"/*; do
169
170
171
172
        ln -s "${ext}" "${destination}"/extensions/
    done
}

Tails developers's avatar
Tails developers committed
173
TBB_SHA256SUMS_FILE=/usr/share/tails/tbb-sha256sums.txt
Tails developers's avatar
Tails developers committed
174
TBB_TARBALLS="$(grep "\<tor-browser-linux32-.*\.tar.xz$" "${TBB_SHA256SUMS_FILE}")"
175

Tails developers's avatar
Tails developers committed
176
177
# We'll use the en-US bundle as our basis; only langpacks will be
# installed from the other bundles.
Tails developers's avatar
Tails developers committed
178
MAIN_TARBALL="$(echo "${TBB_TARBALLS}" | grep -o "tor-browser-linux32-.*_en-US.tar.xz")"
179
VERSION="$(echo "${MAIN_TARBALL}" | sed 's/tor-browser-linux32-\(.*\)_en-US.tar.xz/\1/')"
Tails developers's avatar
Tails developers committed
180
TBB_DIST_URL_FILE=/usr/share/tails/tbb-dist-url.txt
Tails developers's avatar
Tails developers committed
181
TBB_TARBALLS_BASE_URL="$(cat "${TBB_DIST_URL_FILE}")/${VERSION}"
182

183
184
# The Debian Iceweasel extensions we want to install and make
# available in the Tor Browser.
Tails developers's avatar
Tails developers committed
185
DEBIAN_EXT_PKGS="xul-ext-adblock-plus xul-ext-torbutton"
186

187
TMP="$(mktemp -d)"
Tails developers's avatar
Tails developers committed
188
download_and_verify_files "${TBB_TARBALLS_BASE_URL}" "${TBB_TARBALLS}" "${TMP}"
189

Tails developers's avatar
Tails developers committed
190
install_tor_browser "${TMP}/${MAIN_TARBALL}" "${TBB_INSTALL}"
191

192
193
mkdir -p "${TBB_EXT}"
install_langpacks_from_bundles "${TMP}" "${TBB_EXT}"
194

195
196
rm -r "${TMP}"

Tails developers's avatar
Tails developers committed
197
# Let's put all the extensions from TBB in the global extensions
198
# directory...
199
200
mv "${TBB_INSTALL}"/TorBrowser/Data/Browser/profile.default/extensions/* "${TBB_EXT}"
rmdir "${TBB_INSTALL}"/TorBrowser/Data/Browser/profile.default/extensions
201

202
203
# ... and then install a few Iceweasel extension by using a fake
# Iceweasel equivs package to satisfy the dependencies.
204
FIREFOX_VERSION=$(get_firefox_version "${TBB_INSTALL}"/application.ini)
205
206
FAKE_ICEWEASEL_VERSION=${FIREFOX_VERSION}+fake1
install_fake_iceweasel_pkg "${FAKE_ICEWEASEL_VERSION}"
207
install_debian_extensions "${TBB_EXT}" ${DEBIAN_EXT_PKGS}
208

209
mkdir -p "${TBB_PROFILE}"
210
create_default_profile "${TBB_INSTALL}"/TorBrowser/Data/Browser/profile.default "${TBB_EXT}" "${TBB_PROFILE}"
211

212
213
chown -R root:root "${TBB_INSTALL}" "${TBB_PROFILE}" "${TBB_EXT}"
chmod -R a+rX "${TBB_INSTALL}" "${TBB_PROFILE}" "${TBB_EXT}"
214

Tails developers's avatar
Tails developers committed
215
# Make the Tor Browser into the system's default web browser
216
217
update-alternatives --install /usr/bin/x-www-browser x-www-browser /usr/local/bin/tor-browser 99
update-alternatives --install /usr/bin/gnome-www-browser gnome-www-browser /usr/local/bin/tor-browser 99