i2p-browser 13.7 KB
Newer Older
Kill Your TV's avatar
Kill Your TV committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
#!/bin/sh

set -e

# This isn't very useful without I2P...
grep -qw "i2p" /proc/cmdline || exit 0

CMD=$(basename ${0})
LOCK=/var/lock/${CMD}

. gettext.sh
TEXTDOMAIN="tails"
export TEXTDOMAIN

15
16
. /usr/local/lib/tails-shell-library/i2p.sh

Kill Your TV's avatar
Kill Your TV committed
17
18
19
20
CONF_DIR=/var/lib/i2p-browser
COW=${CONF_DIR}/cow
CHROOT=${CONF_DIR}/chroot
BROWSER_USER=i2pbrowser
21
TBB_PREFS="/etc/tor-browser/profile/preferences"
Kill Your TV's avatar
Kill Your TV committed
22
23
START_PAGE="http://127.0.0.1:7657"

24
25
26
# Import the TBB_INSTALL, TBB_EXT and TBB_PROFILE variables, and
# exec_firefox(), configure_xulrunner_app_locale() and
# guess_best_tor_browser_locale()
27
28
. /usr/local/lib/tails-shell-library/tor-browser.sh

29
30
NOSCRIPT="${TBB_EXT}/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi"
TORBUTTON="${TBB_EXT}/torbutton@torproject.org"
Kill Your TV's avatar
Kill Your TV committed
31
NAME="`gettext \"I2P Browser\"`"
32

Kill Your TV's avatar
Kill Your TV committed
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
if [ -e /var/lib/gdm3/tails.camouflage ]; then
    CAMOUFLAGE=yes
fi

cleanup () {
    # Break down the chroot and kill all of its processes
    local counter=0
    local ret=0
    while [ "${counter}" -le 10 ] && \
        pgrep -u ${BROWSER_USER} 1>/dev/null 2>&1; do
        pkill -u ${BROWSER_USER} 1>/dev/null 2>&1
        ret=${?}
        sleep 1
        counter=$((${counter}+1))
    done
    [ ${ret} -eq 0 ] || pkill -9 -u ${BROWSER_USER} 1>/dev/null 2>&1
    for mnt in ${CHROOT}/dev ${CHROOT}/proc ${CHROOT} ${COW}; do
        counter=0
        while [ "${counter}" -le 10 ] && mountpoint -q ${mnt} 2>/dev/null; do
            umount ${mnt} 2>/dev/null
            sleep 1
            counter=$((${counter}+1))
        done
    done
    rmdir ${COW} ${CHROOT} 2>/dev/null
}

60
61
62
63
64
65
66
67
68
69
error () {
    local cli_text="${CMD}: `gettext \"error:\"` ${@}"
    local dialog_text="<b><big>`gettext \"Error\"`</big></b>

${@}"
    echo "${cli_text}" >&2
    sudo -u ${SUDO_USER} zenity --error --title "" --text "${dialog_text}"
    exit 1
}

Kill Your TV's avatar
Kill Your TV committed
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
verify_start () {
    # Make sure the user really wants to start the browser in case the router console isn't available
    local dialog_msg="<b><big>`gettext \"Do you still want to launch I2P Browser?\"`</big></b>

`gettext \"The I2P router console is not ready.\"`"
    local launch="`gettext \"_Launch\"`"
    local exit="`gettext \"_Exit\"`"
    # Since zenity can't set the default button to cancel, we switch the
    # labels and interpret the return value as its negation.
    if sudo -u ${SUDO_USER} zenity --question --title "" --ok-label "${exit}" \
       --cancel-label "${launch}" --text "${dialog_msg}"; then
        exit 0
    fi
}

show_start_notification () {
    local title="`gettext \"Starting the I2P Browser...\"`"
    local body="`gettext \"This may take a while, so please be patient.\"`"
    tails-notify-user "${title}" "${body}" 10000
}

setup_chroot () {
    # Setup a chroot on an aufs "fork" of the filesystem.
    # FIXME: When LXC matures to the point where it becomes a viable option
    # for creating isolated jails, the chroot can be used as its rootfs.
    echo "* Setting up chroot"

    trap cleanup INT
    trap cleanup EXIT

100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
    local rootfs_dir
    local rootfs_dirs_path=/lib/live/mount/rootfs
    local tails_module_path=/lib/live/mount/medium/live/Tails.module
    local aufs_dirs=

    # We have to pay attention to the order we stack the filesystems;
    # newest must be first, and remember that the .module file lists
    # oldest first, newest last.
    while read rootfs_dir; do
        rootfs_dir="${rootfs_dirs_path}/${rootfs_dir}"
        mountpoint -q "${rootfs_dir}" && \
        aufs_dirs="${rootfs_dir}=rr+wh:${aufs_dirs}"
    done < "${tails_module_path}"
    # But our copy-on-write dir must be at the very top.
    aufs_dirs="${COW}=rw:${aufs_dirs}"

Kill Your TV's avatar
Kill Your TV committed
116
117
    mkdir -p ${COW} ${CHROOT} && \
    mount -t tmpfs tmpfs ${COW} && \
118
    mount -t aufs -o "noatime,noxino,dirs=${aufs_dirs}" aufs ${CHROOT} && \
Kill Your TV's avatar
Kill Your TV committed
119
120
121
122
123
124
125
126
127
128
    mount -t proc proc ${CHROOT}/proc && \
    mount --bind /dev ${CHROOT}/dev || \
    error "`gettext \"Failed to setup chroot.\"`"

    # Workaround for todo/buggy_aufs_vs_unsafe-browser
    chmod -t ${COW}
}

set_chroot_browser_name () {
    NAME="${1}"
129
130
    LOCALE="${2}"
    EXT_DIR=${CHROOT}/"${TBB_EXT}"
Kill Your TV's avatar
Kill Your TV committed
131
    BRANDING=branding/brand.dtd
132
133
    if [ "${LOCALE}" != en-US ]; then
        PACK="${EXT_DIR}/langpack-${LOCALE}@firefox.mozilla.org.xpi"
Kill Your TV's avatar
Kill Your TV committed
134
        TOP=browser/chrome
135
        REST=${LOCALE}/locale
Kill Your TV's avatar
Kill Your TV committed
136
    else
137
        PACK="${CHROOT}/${TBB_INSTALL}/browser/omni.ja"
138
139
        TOP=chrome
        REST=en-US/locale
Kill Your TV's avatar
Kill Your TV committed
140
141
142
143
144
    fi
    TMP=$(mktemp -d)
    # Non-zero exit code due to non-standard ZIP archive.
    # The following steps will fail soon if the extraction failed anyway.
    unzip -d "${TMP}" "${PACK}" || true
145
    sed -i "s/<"'!'"ENTITY\s\+brand\(Full\|Short\)Name.*$/<"'!'"ENTITY brand\1Name \"${NAME}\">/" "${TMP}/${TOP}/${REST}/${BRANDING}"
Kill Your TV's avatar
Kill Your TV committed
146
147
148
149
150
151
152
153
154
155
156
157
    rm "${PACK}"
    (cd $TMP ; 7z a -tzip "${PACK}" .)
    chmod a+r "${PACK}"
    rm -Rf "${TMP}"
}

configure_chroot () {
    echo "* Configuring chroot"

    # Prevent sudo from complaining about failing to resolve the 'amnesia' host
    echo "127.0.0.1 localhost amnesia" > ${CHROOT}/etc/hosts

Kill Your TV's avatar
Kill Your TV committed
158
159
    # Keep the NoScript and TorButton addons
    chroot ${CHROOT} dpkg -l 'xul-ext*' |grep -v 'noscript\|torbutton' \
Kill Your TV's avatar
Kill Your TV committed
160
            | awk '/^ii/{print $2}' | xargs -r chroot ${CHROOT} dpkg --remove
Kill Your TV's avatar
Kill Your TV committed
161

162
163
    # Create a fresh Tor Browser profile for the i2pbrowser user
    BROWSER_PROFILE="${CHROOT}/home/${BROWSER_USER}/.tor-browser/profile.default"
164
165
    BROWSER_EXT="${BROWSER_PROFILE}/extensions"
    mkdir -p "${BROWSER_EXT}"
Kill Your TV's avatar
Kill Your TV committed
166
    ln -s "${NOSCRIPT}" "${BROWSER_EXT}"
Kill Your TV's avatar
Kill Your TV committed
167
168
169
170
    # 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.
    TMP=$(mktemp -d)
    cp -a /usr/share/xul-ext/torbutton/ $TMP
Kill Your TV's avatar
Kill Your TV committed
171
    for LANGPACK in $(ls ${TBB_PROFILE}/extensions/langpack-*.xpi); do
Kill Your TV's avatar
Kill Your TV committed
172
173
        ln -s "${LANGPACK}" "${BROWSER_EXT}"
    done
Kill Your TV's avatar
Kill Your TV committed
174
175
176
177
    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 $TMP
178
179
180
181
182
    BROWSER_PREF_DIR="${BROWSER_PROFILE}/preferences"
    BROWSER_PREFS="${BROWSER_PREF_DIR}/prefs.js"
    mkdir -p "${BROWSER_PREF_DIR}"

    # Selectively copy the TBB prefs we want
183
184
    sed '/\(security\|update\|download\|spell\|noscript\|torbrowser\|torbutton\)/!d' $TBB_PREFS/0000tails.js > \
                    ${BROWSER_PREF_DIR}/0000tails.js
Kill Your TV's avatar
Kill Your TV committed
185
    sed '/\(capability\|noscript\|torbutton\)/!d' ${TBB_PREFS}/extension-overrides.js > \
186
187
188
                    ${BROWSER_PREF_DIR}/extension-overrides.js

    # Localization
189
190
    BEST_LOCALE="$(guess_best_tor_browser_locale)"
    configure_xulrunner_app_locale "${BROWSER_PROFILE}" "${BEST_LOCALE}"
191

192
193
194
    # Prevent File -> Print or CTRL+P from causing the browser to hang
    # for several minutes while trying to communicate with CUPS, since
    # access to port 631 isn't allowed through.
Kill Your TV's avatar
Kill Your TV committed
195
    echo 'user_pref("print.postscript.cups.enabled", false);' >> \
196
        ${BROWSER_PREFS}
197
198

    # Set the name (e.g. window title) of the browser
199
    set_chroot_browser_name "`gettext \"I2P Browser\"`" "${BEST_LOCALE}"
200
201
202
203
204
205

    # Set start page to the router console
    echo 'user_pref("browser.startup.homepage", "'${START_PAGE}'");' >> \
        ${BROWSER_PREFS}


206
207
208
    # Disable searching from the URL bar
    echo 'user_pref("keyword.enabled", false);' >> \
        ${BROWSER_PREFS}
209
210
    # Hide "Get Addons" in Add-ons manager
    echo 'user_pref("extensions.getAddons.showPane", false);' >> \
211
        ${BROWSER_PREFS}
Kill Your TV's avatar
Kill Your TV committed
212
    # add the I2P proxy to all protocols
213
    cat > "${BROWSER_PREF_DIR}/i2p.js" << EOF
Kill Your TV's avatar
Kill Your TV committed
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
user_pref("extensions.torbutton.http_port", 4444);
user_pref("extensions.torbutton.http_proxy", "127.0.0.1");
user_pref("extensions.torbutton.https_port", 4444);
user_pref("extensions.torbutton.https_proxy", "127.0.0.1");
user_pref("extensions.torbutton.custom.ftp_port", 4444);
user_pref("extensions.torbutton.custom.ftp_proxy", "127.0.0.1");
user_pref("extensions.torbutton.custom.http_port", 4444);
user_pref("extensions.torbutton.custom.http_proxy", "127.0.0.1");
user_pref("extensions.torbutton.custom.https_port", 4444);
user_pref("extensions.torbutton.custom.https_proxy", "127.0.0.1");
user_pref("extensions.torbutton.ftp_port", 4444);
user_pref("extensions.torbutton.ftp_proxy", "127.0.0.1");
user_pref("extensions.torbutton.gopher_port", 4444);
user_pref("extensions.torbutton.gopher_proxy", "127.0.0.1");
user_pref("extensions.torbutton.inserted_button", true);
user_pref("extensions.torbutton.settings_method", "custom");
Kill Your TV's avatar
Kill Your TV committed
230
231
user_pref("network.proxy.ftp", "127.0.0.1");
user_pref("network.proxy.ftp_port", 4444);
Kill Your TV's avatar
Kill Your TV committed
232
233
234
user_pref("network.proxy.http", "127.0.0.1");
user_pref("network.proxy.http_port", 4444);
user_pref("network.proxy.no_proxies_on", "127.0.0.1");
Kill Your TV's avatar
Kill Your TV committed
235
236
user_pref("network.proxy.ssl", "127.0.0.1");
user_pref("network.proxy.ssl_port", 4444);
237
EOF
238
    # Hide options in the I2P Browser.
Kill Your TV's avatar
Kill Your TV committed
239
    # It would be good to implement the ability to persist the browser profile in the
240
241
242
243
    # future. At that point, the Bookmark functionality could be restored.
    BROWSER_CHROME="${BROWSER_PROFILE}/chrome/userChrome.css"
    mkdir -p "$(dirname "${BROWSER_CHROME}")"
    cat > ${BROWSER_CHROME} << EOF
244
245
246
/* Required, do not remove */
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

Kill Your TV's avatar
Kill Your TV committed
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
/* Hide access to the bookmarks to try to prevent "data loss" due to users
 * adding bookmarks even though the profile is destroyed at browser close.
 * Keyboard shortcuts still work, but this makes it harder to 'accidentally'
 * lose bookmarks.
 *
 * Note that any of the selectors that start with 'app' apply to the menu that
 * is used if the main menu is hidden. Any that start with 'wrapper' are
 * buttons that are normally visible within the 'customize toolbar' option. The
 * others are probably self-explanatory.
 */

/* Remove the History and Bookmarks menus and buttons */
#appmenu_bookmarks,
#appmenu_history,
#bookmarks,
#bookmarks-menu-button,
#bookmarksMenu,
#history,
#history-menu,
#history-menu-button,
#wrapper-history-button,
#wrapper-bookmarks-button,

/* Hide the sidebar menu (underneath View) since the default sidebars consist
 * of history and bookmarks.  Also disable the bookmark toolbar.
 */
#toggle_PersonalToolbar,
#viewSidebarMenuMenu,

/* Remove the "Star button" and "History Dropdown arrow" from the URL bar
 * since neither history nor bookmarks are saved.
 */
#star-button,
[anonid="historydropmarker"],

/* Remove bookmark options from the context menus */
#context-bookmarkframe,
#context-bookmarklink,
#context-bookmarkpage,

287
288
289
290
291
/* Hide the option for emailing links since it's doomed to failure
 * without a configured email client.
 */
menuitem[command="Browser:SendLink"],

292
293
294
295
296
297
298
299
300
/* Hide Print options */
/*
#menu_printSetup,
#menu_printPreview,
#menu_print,
#menu_print + menuseparator,
[command="cmd_print"],
*/

301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
/* Hide the sync functionality which won't work with I2P */
#BrowserPreferences radio[pane="paneSync"],
#sync-button,
#sync-menu-button,
#sync-setup,
#sync-setup-appmenu,
#sync-status-button,
#sync-syncnowitem-appmenu,
#wrapper-sync-button,

/* Without I2P search engines defined, the search bar is useless.
 *  Since there are no I2P search engines added to Tails (yet),
 *  let's hide it and the Update Pane in Firefox's Preferences.
 */
#search-container,
#updateTab,

/* Hide options in the Help menu that lead to disallowed resources on the
 * Internet.
 */
#appmenu_feedbackPage,
#appmenu_gettingStarted,
#appmenu_openHelp,
#feedbackPage,
#gettingStarted,
#menu_HelpPopup_reportPhishingtoolmenu,
327
328
329
330
331
332
#menu_openHelp,

/* Hide TorBrowser Health Report and its configuration option */
#appmenu_healthReport,
#dataChoicesTab,
#healthReport
333
334
335

/* Now the actual hiding */
{display: none !important}
Kill Your TV's avatar
Kill Your TV committed
336
EOF
337
    rm -rf ${BROWSER_EXT}/branding@amnesia.boum.org
Kill Your TV's avatar
Kill Your TV committed
338

339
340
341
342
343
344
345
    # Remove all bookmarks
    rm -f "${CHROOT}/${TBB_PROFILE}/bookmarks.html"
    rm -f ${BROWSER_PROFILE}/bookmarks.html
    rm -f ${BROWSER_PROFILE}/places.sqlite

   chown -R ${BROWSER_USER}:${BROWSER_USER} "${CHROOT}/home/${BROWSER_USER}/.tor-browser"

Kill Your TV's avatar
Kill Your TV committed
346
347
    # Change the theme when not using Windows camouflage
    if [ -z "${CAMOUFLAGE}" ]; then
348
        cat >> ${BROWSER_PREFS} <<EOF
Kill Your TV's avatar
Kill Your TV committed
349
350
351
352
353
354
user_pref("lightweightThemes.isThemeSelected", true);
user_pref("lightweightThemes.usedThemes", "[{\"id\":\"1\",\"name\":\"I2P Browser\",\"headerURL\":\"file:///usr/share/pixmaps/red_dot.png\",\"footerURL\":\"file:///usr/share/pixmaps/red_dot.png\",\"textcolor\":\"#FFFFFF\",\"accentcolor\":\"#66ABEB\",\"updateDate\":0,\"installDate\":0}]");
EOF
    else
        # The camouflage activation script requires a dbus server for
        # properly configuring GNOME, so we start one in the chroot
355
        chroot ${CHROOT} sudo -H -u ${BROWSER_USER} sh -c 'eval `dbus-launch --auto-syntax`; tails-activate-win8-theme' || :
Kill Your TV's avatar
Kill Your TV committed
356
357
358
359
360
361
362
363
364
    fi

}

run_browser_in_chroot () {
    # Start Iceweasel in the chroot
    echo "* Starting I2P Browser"

    sudo -u ${SUDO_USER} xhost +SI:localuser:${BROWSER_USER} 2>/dev/null
365
366
367
368
    chroot ${CHROOT} sudo -u ${BROWSER_USER} /bin/sh -c \
        ". /usr/local/lib/tails-shell-library/tor-browser.sh && \
         exec_firefox -DISPLAY=:0.0 \
                      -profile /home/${BROWSER_USER}/.tor-browser/profile.default"
Kill Your TV's avatar
Kill Your TV committed
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
    sudo -u ${SUDO_USER} xhost -SI:localuser:${BROWSER_USER} 2>/dev/null
}

show_shutdown_notification () {
    local title="`gettext \"Shutting down the I2P Browser...\"`"
    local body="`gettext \"This may take a while, and you may not restart the I2P Browser until it is properly shut down.\"`"
    tails-notify-user "${title}" "${body}" 10000
}

# Prevent multiple instances of the script.
exec 9>${LOCK}
if ! flock -x -n 9; then
    error "`gettext \"Another I2P Browser is currently running, or being cleaned up. Please retry in a while.\"`"
fi

384
if ! i2p_router_console_is_ready; then
Kill Your TV's avatar
Kill Your TV committed
385
386
387
388
389
390
391
392
393
    verify_start
fi
show_start_notification
setup_chroot
configure_chroot
run_browser_in_chroot
show_shutdown_notification

exit 0