#!/usr/bin/env bash
#
#    Copyright (C) 2014-2019  Ruben Rodriguez <ruben@gnu.org>
#    Copyright (C) 2019-2021  Amin Bandali <bandali@gnu.org>
#    Copyright (C) 2019-2021  Mark H Weaver <mhw@netris.org>
#    Copyright (C) 2020  bill-auger <bill-auger@programmer.net>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA


# metadata
readonly FFMAJOR=91
readonly FFMINOR=4
readonly FFSUB=0
readonly GNUVERSION=1
readonly SOURCEBALL_CHECKSUM='e722829db490f9332712a81c35996541737bbfb05232d47190fee779c4fcb327'
readonly SOURCEBALL_SIGNINGKEY='14F26682D0916CDD81E37B6D61B7B526D98F0353'
readonly FFVERSION=${FFMAJOR}.${FFMINOR}.${FFSUB}
readonly SOURCEBALL=firefox-${FFVERSION}esr.source.tar.xz
readonly SOURCEBALL_URL=https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/${SOURCEBALL}
readonly KEYSERVER=keyserver.ubuntu.com

# branding
readonly INFO_URL=www.gnu.org/software/gnuzilla/
readonly LEGALINFO_URL=www.gnu.org/software/gnuzilla/
readonly ADDONS_URL=www.gnu.org/software/gnuzilla/addons.html
readonly LIST_URL=lists.gnu.org/mailman/listinfo/bug-gnuzilla

# l10n
readonly L10N_URL=https://hg.mozilla.org/l10n-central
readonly L10N_CMP_URL=https://hg.mozilla.org/l10n/compare-locales
readonly L10N_CMP_REV=RELEASE_8_1_0
readonly L10N_PREFS_DIR=browser/chrome/browser/preferences
readonly L10N_DTD_FILE=${L10N_PREFS_DIR}/advanced-scripts.dtd
readonly PREFS_IN_FILE=browser/locales/en-US/browser/preferences/preferences.ftl
readonly PREFS_OUT_FILE=/browser/browser/preferences/preferences.ftl

# build environment, working directory, and outputs
readonly MIN_RENAME_VER_MAJ=1
readonly MIN_RENAME_VER_MIN=10
readonly DATADIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/data
readonly ICECATVERSION=${FFVERSION}-gnu${GNUVERSION}
readonly OUTPUT_SOURCEBALL=icecat-${ICECATVERSION}.tar.bz2
readonly SOURCEDIR=icecat-${FFVERSION}

# debug/shell options
readonly DEVEL=0
set -euo pipefail
(( DEVEL )) && set -x


###############################################################################
# helper/auxiliary functions
###############################################################################

sedhelper()
{
    local file="$1"
    local expr="$2"
    local md5=$(md5sum "${file}")

    echo Running modification-aware sed: sed "${expr}" -i "${file}"
    /bin/sed "${expr}" -i "${file}"
    if [ "${md5}" = "$(md5sum "${file}")" ]; then
        echo File "${file}" was not modified, stopping.
        exit 1
    fi
}

sed()
{
    if ! echo $@ | grep -qw '\-i'; then
        echo Running fallback sed: /bin/sed "$@"
        /bin/sed "$@"
    else
        [ 1"$1" = "1-i" ] && shift

        local sedexpr="$1"
        shift
        for file in "$@"; do
            [ 1"${file}" = "1-i" ] && continue

            if [ -f "${file}" ]; then
                sedhelper "${file}" "${sedexpr}"
            else
                echo File "${file}" does not exist, stopping.
                exit 1
            fi
        done
    fi
}


###############################################################################
# main functions
###############################################################################

validate_env()
{
    # verify that GnuPG is available
    if ! which gpg &> /dev/null
    then
        echo -e "\nERROR: This script requires GnuPG:
 e.g.: 'gpg' from the Guix 'gnupg' package
       'gpg' from the Parabola 'gnupg' package
       'gpg' from the Trisquel 'gnupg' package"
        return 1
    fi

    # verify that Mercurial is available
    if ! which hg &> /dev/null
    then
        echo -e "\nERROR: This script requires Mercurial:
 e.g.: 'hg' from the Guix 'mercurial' package
       'hg' from the Parabola 'mercurial' package
       'hg' from the Trisquel 'mercurial' package"
        return 1
    fi

    # verify that Perl 'rename' is available and sufficent
    local rename_cmds=(
        # NOTE: order is important -- 'util-linux' provides a binary named 'rename'
        # TODO: consider removing this dependency and using GNU find
        'rename'      # guix
        'perl-rename' # arch derivatives
        'prename'     # debian derivatives
    )
    local rename_cmd
    local required_ver
    for rename_cmd in ${rename_cmds[@]}
    do which ${rename_cmd} &> /dev/null && RENAME_CMD=${rename_cmd}
    done
    readonly RENAME_CMD
    if ! ( [[ "$( ${RENAME_CMD} --version )" =~ 'File::Rename version '([0-9]+)\.([0-9]+) ]] &&
               (( ${BASH_REMATCH[1]} >= MIN_RENAME_VER_MAJ )) &&
               (( ${BASH_REMATCH[2]} >= MIN_RENAME_VER_MIN )) )
    then
        required_ver=${MIN_RENAME_VER_MAJ}.${MIN_RENAME_VER_MIN}
        echo -e "\nERROR: This script requires the Perl rename program (version >= ${required_ver})
 e.g.: 'rename' from the Guix 'rename' package
       'perl-rename' from the Parabola 'perl-file-rename' package
       'prename' from the Trisquel 'rename' package"
        return 1
    fi

    # verify that Wget is available
    if ! which wget &> /dev/null
    then
        echo -e "\nERROR: This script requires Wget:
 e.g.: 'wget' from the Guix 'wget' package
       'wget' from the Parabola 'wget' package
       'wget' from the Trisquel 'wget' package"
        return 1
    fi

    # verify that Python 3 is available
    if ! which python3 &> /dev/null
    then
        echo -e "\nERROR: This script requires Python 3:
 e.g.: 'python3' from the Guix 'python' package
       'python3' from the Parabola 'python' package
       'python3' from the Trisquel 'python3' package"
        return 1
    fi

    # verify that Python 3 jsonschema is available
    if ! python3 -c 'import jsonschema' &> /dev/null
    then
        echo -e "\nERROR: This script requires Python 3 jsonschema:
 e.g.: 'jsonschema' from the Guix 'python-jsonschema' package
       'jsonschema' from the Parabola 'python-jsonschema' package
       'jsonschema' from the Trisquel 'python3-jsonschema' package"
        return 1
    fi
}

prepare_env()
{
    mkdir -p output
    mkdir -p output/l10n

    # clean up existing working directory, if present
    rm -rf output/firefox-${FFVERSION} &> /dev/null || true
    rm -rf output/${SOURCEDIR} &> /dev/null || true
}

fetch_source()
{
    cd output

    if [[ -f ${SOURCEBALL} ]]
    then
        # validate existing source-ball
        if echo -n ${SOURCEBALL_CHECKSUM} ${SOURCEBALL} | sha256sum -c -
        then
            echo Found existing Firefox tarball
        else
            echo Removing existing invalid Firefox tarball
            rm -f ${SOURCEBALL}
        fi
    fi
    if ! [[ -f ${SOURCEBALL} ]]
    then
        # source-ball missing, download it
        echo Downloading Firefox tarball
        wget -N ${SOURCEBALL_URL}
        wget -N ${SOURCEBALL_URL}.asc
    fi
}

verify_sources()
{
    echo Verifying Firefox tarball
    gpg --recv-keys --keyserver keyserver.ubuntu.com ${SOURCEBALL_SIGNINGKEY}
    gpg --verify ${SOURCEBALL}.asc
    echo -n ${SOURCEBALL_CHECKSUM} ${SOURCEBALL} | sha256sum -c -
}

extract_sources()
{
    echo Extracting Firefox tarball
    tar -xf ${SOURCEBALL}

    mv firefox-${FFVERSION} ${SOURCEDIR}
}

fetch_l10n()
{
    cd l10n

    while read lang; do
        # download only one language-pack in devel mode
        ! (( DEVEL )) || [[ "$(echo ${lang} | cut -d' ' -f1)" == "es-ES" ]] || continue

        lang=$(echo ${lang} | cut -d' ' -f1)

        # download only language-packs which are not already in the working directory
        if [[ -n "${lang}" && "${lang}" != 'en-US' && ! -f ${lang}/${L10N_DTD_FILE} ]]
        then
            echo "Cloning '${lang}' language repository"
            hg clone ${L10N_URL}/${lang}
            mkdir -p ${lang}/${L10N_PREFS_DIR}
            touch ${lang}/${L10N_DTD_FILE}
            rm -rf ${lang}/.hg*
        fi
    done < ../${SOURCEDIR}/browser/locales/shipped-locales
    cd ..
    cp -a l10n ${SOURCEDIR}/

    if ! [[ -d compare-locales ]]
    then
        hg clone ${L10N_CMP_URL}/
    fi
    cd compare-locales/
    hg checkout ${L10N_CMP_REV}
    cd ..
    cp -a compare-locales ${SOURCEDIR}/l10n/
    rm -rf ${SOURCEDIR}/l10n/compare-locales/{.git,.hg}*
}

apply_patches()
{
    cd ${SOURCEDIR}

    local patch
    local file_to_append
    local dir

    shopt -s nullglob
    for patch in "${DATADIR}"/patches/*.patch; do
        echo Patching with file: $patch
        patch -p1 --force --no-backup-if-mismatch --input $patch
    done
    shopt -u nullglob

    for file_to_append in $(cd "${DATADIR}"/files-to-append; find . -type f -print); do
        echo Appending new data to the end of file: $file_to_append
        cat "${DATADIR}"/files-to-append/$file_to_append >> $file_to_append
    done

    for dir in l10n/*; do
        if [[ $dir != l10n/compare-locales ]]; then
            if [[ ! -e ${DATADIR}/files-to-append/${dir}/${PREFS_OUT_FILE} ]]; then
                cat ${DATADIR}/files-to-append/${PREFS_IN_FILE} >> ${dir}/${PREFS_OUT_FILE}
            fi
        fi
    done

    cp "${DATADIR}"/Changelog.IceCat "${DATADIR}"/README.IceCat .
}

configure()
{
    # Disable EME
    echo "ac_add_options --disable-eme" >> build/mozconfig.common.override
    echo "ac_add_options --disable-eme" >> build/mozconfig.common

    # Correct build error
    echo "ac_add_options --enable-stdcxx-compat" >> build/mozconfig.common.override

    # Disable healthreport
    sed "/\"datareporting\\.healthreport\\.infoURL\"/s|http.*|https://${LEGALINFO_URL}\");|" -i modules/libpref/init/all.js
    sed '/"datareporting\.healthreport\.uploadEnabled"/s/true/false/' -i modules/libpref/init/all.js

    # Custom privacy statement link
    sed "s|https://www\\.mozilla\\.org/legal/privacy/|https://${LEGALINFO_URL}|" -i ./browser/app/profile/firefox.js ./toolkit/content/aboutRights.xhtml

    # Sanitize lists
    local plugin_file
    local sort_tmpfile="$(mktemp -t makeicecat-XXXXXXXXXX)"
    for plugin_file in $(find | grep searchplugins/list.txt)
    do
        /bin/sed /^$/d -i $plugin_file
        sort -u $plugin_file > ${sort_tmpfile}
        mv ${sort_tmpfile} $plugin_file
        echo >> $plugin_file
    done

    # Disable activity-stream anti-features.
    # These are not condensed into a single sed script so that it
    # fails on individual commands that didn't change the source
    local activity_stream=browser/components/newtab/lib/ActivityStream.jsm
    sed '/^const DEFAULT_SITES/,/^])\;/c const DEFAULT_SITES = new Map\([[""]]\);' -i browser/components/newtab/lib/DefaultSites.jsm
    sed '/"showSponsored"/,/value/s/value: true/value: false/' -i $activity_stream
    sed '/  "telemetry"/,/value/s/value: true/value: false/' -i $activity_stream
    sed '/"section\.highlights\.includePocket"/,/value/s/value: true/value: false/' -i $activity_stream
    sed '/read_more_endpoint:/,/http/s/"http.*/"",/' -i $activity_stream
    sed '/stories_endpoint: `/,/}`,/c stories_endpoint: "",' -i $activity_stream
    sed 's/\(stories_referrer:\) .http.*/\1 "",/' -i $activity_stream
    sed 's/\(topics_endpoint:\) .http.*/\1 "",/' -i $activity_stream
    sed '/"telemetry\.structuredIngestion\.endpoint"/,/value/s/value: .*/value: "",/' -i $activity_stream
    sed '/layout_endpoint:/,/http/s/"http.*/"",/' -i $activity_stream
    sed '/name: "telemetry"/,/value/s/value: true/value: false/' -i $activity_stream
    sed '/name: "system\.topstories"/,/},/s/.*!!locales.*/false/' -i $activity_stream
    sed 's/.Ubuntu., //' -i browser/components/newtab/css/activity-stream*.css

    sed '/^]$/d' -i browser/components/newtab/data/content/tippytop/top_sites.json
    sed 's/}$/},/' -i browser/components/newtab/data/content/tippytop/top_sites.json
    cat << EOF >> browser/components/newtab/data/content/tippytop/top_sites.json
{
  "domains": ["gnu.org"],
  "image_url": "images/gnu.png",
  "favicon_url": "favicons/gnu.ico"
},
{
  "domains": ["fsf.org"],
  "image_url": "images/fsf.png",
  "favicon_url": "favicons/fsf.ico"
},
{
  "domains": ["directory.fsf.org"],
  "image_url": "images/directory.png",
  "favicon_url": "favicons/fsf.ico"
},
{
  "domains": ["libreplanet.org"],
  "image_url": "images/libreplanet.png",
  "favicon_url": "favicons/libreplanet.ico"
},
{
  "domains": ["trisquel.info"],
  "image_url": "images/trisquel.png",
  "favicon_url": "favicons/trisquel.ico"
},
{
  "domains": ["wikipedia.org"],
  "image_url": "images/wikipedia.png",
  "favicon_url": "favicons/wikipedia.ico"
},
{
  "domains": ["wikinews.org"],
  "image_url": "images/wikinews.png",
  "favicon_url": "favicons/wikinews.ico"
}
]
EOF

    cat << EOF > services/settings/dumps/main/top-sites.json
{
  "data": [
    {
      "url": "https://www.gnu.org/",
      "order": 0,
      "title": "GNU",
      "id": "2a833806-e5c1-58e9-8b7c-69d9417a1253",
      "last_modified": 1633983928584
    },
    {
      "url": "https://www.fsf.org/",
      "order": 1,
      "title": "FSF",
      "id": "d4e3e7e2-64d3-5bac-9c59-3c5c8e1efd8c",
      "last_modified": 1633983928585
    },
    {
      "url": "https://directory.fsf.org/",
      "order": 2,
      "title": "Free Software Directory",
      "id": "dbff6206-2ada-57ad-8091-8a62ac37be4c",
      "last_modified": 1633983928586
    },
    {
      "url": "https://libreplanet.org/",
      "order": 3,
      "title": "LibrePlanet",
      "id": "6f586839-4063-58b8-95ed-62e034e1915e",
      "last_modified": 1633983928587
    },
    {
      "url": "https://trisquel.info",
      "order": 4,
      "title": "Trisquel",
      "id": "17aeb24c-da88-53bc-8915-c3e3d458070d",
      "last_modified": 1633983928588
    },
    {
      "url": "https://www.wikipedia.org/",
      "order": 5,
      "title": "Wikipedia",
      "id": "5a18acd7-0440-5512-b3a4-20a35bdc9a1d",
      "last_modified": 1633983928589
    },
    {
      "url": "https://www.wikinews.org/",
      "order": 6,
      "title": "Wikinews",
      "id": "3bb633ba-0823-4501-b3b5-bc1b8670e3e1",
      "last_modified": 1633983928590
    }
  ]
}
EOF

    cp "${DATADIR}"/newtab/*.ico browser/components/newtab/data/content/tippytop/favicons/
    cp "${DATADIR}"/newtab/*.png browser/components/newtab/data/content/tippytop/images/
}

configure_search()
{
    # Leak less info to DuckDuckGo.
    sed '/"params"/,/],/d' -i browser/components/search/extensions/ddg/manifest.json

    # Add a DDG HTML search.
    cp -a browser/components/search/extensions/ddg browser/components/search/extensions/ddg-html
    sed 's|/duckduckgo.com/|/html.duckduckgo.com/html/|' -i browser/components/search/extensions/ddg-html/manifest.json
    sed 's|DuckDuckGo|DuckDuckGo (HTML)|' -i browser/components/search/extensions/ddg-html/manifest.json
    sed 's|ddg@|ddg-html@|' -i browser/components/search/extensions/ddg-html/manifest.json

    # Process various JSON pre-configuration dumps.
    python3 ../../tools/process-json-files.py . browser/components/extensions/schemas/
}

configure_mobile()
{
    echo "-dontwarn android.support.**" >> mobile/android/config/proguard/proguard.cfg
    echo "-dontwarn android.support.**" >> mobile/android/config/proguard/strip-libs.cfg

    cat << EOF >> mobile/android/confvars.sh
# IceCat settings
MOZ_APP_VENDOR=GNU
MOZ_APP_VERSION=${FFVERSION}
MOZ_PAY=0
MOZ_SERVICES_HEALTHREPORT=0
MOZ_SERVICES_HEALTHREPORTER=0
MOZ_SERVICES_FXACCOUNTS=0
MOZ_SERVICES_METRICS=0
MOZ_DATA_REPORTING=0
MOZ_NORMANDY=0
MOZ_SERVICES_SYNC=0
MOZ_DEVICES=0
MOZ_ANDROID_GOOGLE_PLAY_SERVICES=0
MOZ_ADDON_SIGNING=0
EOF

    rm -R mobile/android/gradle/
    sed -i '/gradle/d' mobile/android/base/Makefile.in

    cat "${DATADIR}"/settings.js >> mobile/android/app/mobile.js
    cat "${DATADIR}"/settings-android.js >> mobile/android/app/mobile.js

    cat << EOF > mobile/locales/en-US/chrome/region.properties
browser.search.defaultenginename=DuckDuckGo
browser.search.order.1=DuckDuckGo
browser.search.order.2=Google
browser.search.order.3=Yahoo
EOF

    return # FIXME: TODO: adapt the following to ESR 78.x

    cp "${DATADIR}"/preferences_vendor.xml ./mobile/android/app/src/main/res/xml/preferences_vendor.xml

    sed '/public static void checkAndNotifyPolicy/ s/{/{ if(true) return;/; /private static void notifyDataPolicy/ s/{/{ if(true) return;/ ' -i mobile/android/base/java/org/mozilla/gecko/DataReportingNotification.java

    cp -a "${DATADIR}"/android-images/core/* mobile/android/themes/core/images/
    cp -a "${DATADIR}"/android-images/resources mobile/android/base

    sed '/aboutDetails/,/div/d; /privacyURL/d' mobile/android/chrome/content/about.xhtml -i

    sed '/SENDERID/d' -i mobile/android/app/mobile.js

    cat "${DATADIR}"/mobile.dupes  >> mobile/android/installer/allowed-dupes.mn
}

apply_branding()
{
    # Branding files
    rm browser/branding/{official,unofficial,aurora,nightly} mobile/android/branding/* -rf
    cp -a "${DATADIR}"/branding/icecat/ browser/branding/official
    cp -a "${DATADIR}"/branding/icecat/ browser/branding/unofficial
    cp -a "${DATADIR}"/branding/icecat/ browser/branding/nightly
    cp -a "${DATADIR}"/branding/icecatmobile/ mobile/android/branding/official
    cp -a "${DATADIR}"/branding/icecatmobile/ mobile/android/branding/unofficial
    cp -a "${DATADIR}"/branding/icecatmobile/ mobile/android/branding/nightly

    # Disable preprocessor
    sed 's/_PP//' -i browser/branding/branding-common.mozbuild

    # Delete stuff we don't use and that may contain trademarked logos
    rm -rf ./browser/metro ./addon-sdk/source/doc/static-files/media ./b2g

    # Custom bookmarks
    cp "${DATADIR}"/bookmarks.html.in browser/locales/generic/profile/bookmarks.html.in

    # Custom legal about pages
    find l10n -wholename '*/brand.dtd' | xargs /bin/sed 's/trademarkInfo.part1.*/trademarkInfo.part1 "The IceCat logo is Copyright 2008-2015 Free Software Foundation, released under the terms of the GNU Lesser General Public License, version 3 or any later version.">/' -i
    find l10n -wholename '*/brand.ftl' | xargs /bin/sed 's/^trademarkInfo = .*/trademarkInfo = The IceCat logo is Copyright 2008-2015 Free Software Foundation, released under the terms of the GNU Lesser General Public License, version 3 or any later version./' -i
    local string
    for string in rights-intro-point-2 rights-intro-point-3 rights-intro-point-4 rights-intro-point-5 rights-intro-point-6 rights-webservices rights-safebrowsing
    do
        find -name aboutRights.ftl | xargs sed -i "s/^${string}.*/${string} = /"
    done
    for string in helpus community-2 community-exp
    do
        find -wholename '*/browser/aboutDialog.ftl' | xargs sed -i "s/^${string}.*/${string} = /"
    done
    cp "${DATADIR}"/aboutRights.xhtml toolkit/content/aboutRights.xhtml
    cp "${DATADIR}"/aboutRights.xhtml toolkit/content/aboutRights-unbranded.xhtml
    sed -i 's|<a href="http://www\.mozilla\.org/">Mozilla Project</a>|<a href="http://www.gnu.org/">GNU Project</a>|g' browser/base/content/overrides/app-license.html

    # Custom logo for about:preferences?entrypoint=menupanel#sync
    cp "${DATADIR}"/branding/sync.png browser/themes/shared/fxa/logo.png

    # Hide mobile promo
    echo ".fxaMobilePromo {  display: none !important; }" >> browser/themes/shared/preferences/preferences.inc.css

    # Hide extra links in about box
    sed '/releaseNotes.link/d' -i ./browser/base/content/aboutDialog.xhtml
    sed '/description.*helpus/,/description/d' -i ./browser/base/content/aboutDialog.xhtml
}

apply_batch_branding()
{
    find . | tac | grep -i fennec  | ${RENAME_CMD} --nofullpath -E 's/fennec/icecatmobile/;' -E 's/Fennec/IceCatMobile/;'
    find . | tac | grep -i firefox | ${RENAME_CMD} --nofullpath -E 's/firefox/icecat/;' -E 's/Firefox/IceCat/;'

    echo "Running batch rebranding (this will take a while)"
    local sed_script="
s|marketplace\\.firefox\\.com|f-droid.org/repository/browse|g;
s/org\\.mozilla\\.firefox/org.gnu.icecat/g;
s/Adobe Flash/Flash/g;
s|addons\\.mozilla\\.org.*/mobile|directory.fsf.org/wiki/GNU_IceCat|g;
s|addons\\.mozilla\\.org.*/android|directory.fsf.org/wiki/GNU_IceCat|g;
s|support\\.mozilla\\.org.*/mobile|libreplanet.org/wiki/Group:IceCat/icecat-help|g;
s|fhr\\.cdn\\.mozilla\\.net.*mobile|127.0.0.1|g;
s/run-mozilla\\.sh/run-icecat.sh/g;
s/Firefox Marketplace/F-droid free software repository/g;
s|mozilla\\.com/plugincheck|${ADDONS_URL}|g;
s|www\\.mozilla\\.com/firefox/central|${INFO_URL}|g;
s|www\\.mozilla.*/legal/privacy.*html|${LEGALINFO_URL}|g;
s|www\\.mozilla.*/legal/privacy|${LEGALINFO_URL}|g;

s/Mozilla Firefox/GNU IceCat/g;
s/firefox/icecat/g;
s/fennec/icecatmobile/g;
s/Firefox/IceCat/g;
s/Fennec/IceCatMobile/g;
s/FIREFOX/ICECAT/g;
s/FENNEC/ICECATMOBILE/g;
s/ Mozilla / GNU /g;

s|PACKAGES/icecat|PACKAGES/firefox|g;
s/GNU Public/Mozilla Public/g;
s/GNU Foundation/Mozilla Foundation/g;
s/GNU Corporation/Mozilla Corporation/g;
s/icecat\\.com\\>/firefox.com/g;
s/IceCat-Spdy/Firefox-Spdy/g;
s/icecat-accounts/firefox-accounts/g;
s/IceCatAccounts/FirefoxAccounts/g;
s|https://www\\.mozilla\\.org/icecat/?utm_source=synceol|https://www.mozilla.org/firefox/?utm_source=synceol|g;

s|www\\.gnu\\.org/software/gnuzilla/icecat-help|libreplanet.org/wiki/Group:IceCat/Help|g;
"
    find . -type f -not -iregex '.*changelog.*' -not -iregex '.*copyright.*' -not -iregex '.*third_party/rust.*' -execdir /bin/sed --follow-symlinks -i "${sed_script}" '{}' ';'

    find l10n -type f -execdir /bin/sed --follow-symlinks -i "s/from GNU/from Mozilla/g" '{}' ';'

    sed_script="
s/free and open source software/Free Software/g;
s/free and open source/Free Software/g;
s/Open Source/Free Software/g;
s/open source/Free Software/g;
s/opensourcesoftware/Free Software/g;
s/opensource/Free Software/g;
s/OpenSource/Free Software/g;
"

    local extension
    for extension in dtd ftl inc properties; do
        find . -type f -name "*$extension" -execdir /bin/sed --follow-symlinks -i "${sed_script}" '{}' ';'
    done

    sed 's/which are both/which are/; s/free<\/a> and/Free Software<\/a>./; />open source</d; s/free and open source licenses/Free Software licenses/ ' -i toolkit/content/license.html

    sed 's/mozilla-bin/icecat-bin/' -i build/unix/run-mozilla.sh

    find . | tac | grep run-mozilla | ${RENAME_CMD} --nofullpath -E 's/mozilla/icecat/;'

    # do not alter useragent/platform/oscpu/etc with fingerprinting countermeasure, it makes things worse
    sed '/ShouldResistFingerprinting/,/}/s/^/\/\//' -i ./netwerk/protocol/http/nsHttpHandler.cpp
    sed '/If fingerprinting resistance is on/,/}/s/^/\/\//' -i ./dom/base/Navigator.cpp

    # Leave user agent as Firefox
    sed "/MOZILLA_UAVERSION/ s:IceCat/:Firefox/:" -i netwerk/protocol/http/nsHttpHandler.cpp

    find . -name region.properties | xargs -i /bin/sed 's_https://www\.mibbit.*__' -i {}

    # Set migrator scripts
    cp browser/components/migration/IceCatProfileMigrator.jsm browser/components/migration/FirefoxProfileMigrator.jsm
    sed 's/IceCat/Firefox/g; s/icecat/firefox/g' -i browser/components/migration/FirefoxProfileMigrator.jsm

    # Copy js settings
    cat "${DATADIR}"/settings.js >> browser/app/profile/icecat.js

    # Set spoofed useragent on the desktop version
    cat << EOF >> browser/app/profile/icecat.js
// Set useragent to Firefox compatible
// pref("general.useragent.compatMode.firefox",true);
// Spoof the useragent to a generic one
// pref("general.useragent.compatMode.icecat",true);
// Spoof the useragent to a generic one
// pref("general.useragent.override", "Mozilla/5.0 (Windows NT 6.1; rv:${FFMAJOR}.0) Gecko/20100101 Firefox/${FFMAJOR}.0");
pref("general.appname.override", "Netscape");
pref("general.appversion.override", "${FFMAJOR}.0");
pref("general.buildID.override", "Gecko/20100101");
pref("general.oscpu.override", "Windows NT 6.1");
pref("general.platform.override", "Win32");
EOF

    cat << EOF >> browser/confvars.sh
# IceCat settings
MOZ_APP_UA_NAME=IceCat
MOZ_APP_VENDOR=GNU
MOZ_APP_VERSION=${FFVERSION}
MOZ_APP_PROFILE=mozilla/icecat
MOZ_PAY=0
MOZ_SERVICES_HEALTHREPORT=0
MOZ_SERVICES_HEALTHREPORTER=0
MOZ_SERVICES_FXACCOUNTS=0
MOZ_SERVICES_METRICS=0
MOZ_DATA_REPORTING=0
MOZ_NORMANDY=0
MOZ_SERVICES_SYNC=0
MOZ_DEVICES=0
MOZ_ANDROID_GOOGLE_PLAY_SERVICES=0
MOZ_ADDON_SIGNING=0
EOF
}

apply_icons_branding()
{
    local favicon="${DATADIR}"/branding/icecat/icecat.ico
    local jpglogo="${DATADIR}"/../artwork/icecat.jpg

    # Firefox logo
    local ff256="${DATADIR}"/branding/icecat/default256.png
    local ff128="${DATADIR}"/branding/icecat/mozicon128.png
    local ff64="${DATADIR}"/branding/icecat/content/icon64.png
    local ff48="${DATADIR}"/branding/icecat/default48.png
    local ff32="${DATADIR}"/branding/icecat/default32.png
    local ff24="${DATADIR}"/branding/icecat/default24.png
    local ff22="${DATADIR}"/branding/icecat/default22.png
    local ff16="${DATADIR}"/branding/icecat/default16.png

    # Grey flat logo
    local gf300="${DATADIR}"/android-images/resources/drawable-xhdpi/icon_home_empty_icecat.png
    local gf225="${DATADIR}"/android-images/resources/drawable-hdpi/icon_home_empty_icecat.png
    local gf150="${DATADIR}"/android-images/resources/drawable-mdpi/icon_home_empty_icecat.png
    local gf32="${DATADIR}"/android-images/resources/drawable-xhdpi/ic_status_logo.png
    local gf24="${DATADIR}"/android-images/resources/drawable-hdpi/ic_status_logo.png
    local gf16="${DATADIR}"/android-images/resources/drawable-mdpi/ic_status_logo.png

    # White flat
    local wf24="${DATADIR}"/android-images/resources/drawable-mdpi-v11/ic_status_logo.png
    local wf48="${DATADIR}"/android-images/resources/drawable-xhdpi-v11/ic_status_logo.png
    local wf36="${DATADIR}"/android-images/resources/drawable-hdpi-v11/ic_status_logo.png

    # Market logo
    local ma50="${DATADIR}"/android-images/core/marketplace-logo.png
    local ma128="${DATADIR}"/android-images/resources/drawable-mdpi/marketplace.png

    cp $ff16 dom/canvas/test/crossorigin/image.png
    cp $ff16 image/test/unit/image1.png
    cp $jpglogo image/test/unit/image1png16x16.jpg
    cp $jpglogo image/test/unit/image1png64x64.jpg
    cp $ff16 image/test/unit/image2jpg16x16.png
    cp $ff16 image/test/unit/image2jpg16x16-win.png
    cp $ff32 image/test/unit/image2jpg32x32.png
    cp $ff32 image/test/unit/image2jpg32x32-win.png
    cp $ff16 dom/canvas/test/crossorigin/image-allow-credentials.png
    cp $ff16 dom/html/test/image-allow-credentials.png
    cp $ff16 dom/canvas/test/crossorigin/image-allow-star.png
    cp $ff16 toolkit/components/places/tests/favicons/expected-favicon-big32.jpg.png
    cp $ff16 toolkit/components/places/tests/favicons/expected-favicon-big64.png.png
    cp $jpglogo toolkit/components/places/tests/favicons/favicon-big32.jpg
    cp $ff64 toolkit/components/places/tests/favicons/favicon-big64.png
    cp $favicon image/test/unit/image4gif16x16bmp24bpp.ico
    cp $favicon image/test/unit/image4gif16x16bmp32bpp.ico
    cp $favicon image/test/unit/image4gif32x32bmp24bpp.ico
    cp $favicon image/test/unit/image4gif32x32bmp32bpp.ico
    cp $jpglogo image/test/unit/image1png16x16.jpg
    cp $jpglogo image/test/unit/image2.jpg
    cp $jpglogo image/test/unit/image2jpg16x16cropped.jpg
    cp $jpglogo image/test/unit/image2jpg16x16cropped2.jpg
    cp $jpglogo image/test/unit/image2jpg16x32cropped3.jpg
    cp $jpglogo image/test/unit/image2jpg16x32scaled.jpg
    cp $jpglogo image/test/unit/image2jpg32x16cropped4.jpg
    cp $jpglogo image/test/unit/image2jpg32x16scaled.jpg
    cp $jpglogo image/test/unit/image2jpg32x32.jpg
    cp $ff32 image/test/unit/image2jpg32x32.png
    cp $ff32 image/test/unit/image2jpg32x32-win.png
}

prepare_macos_packaging()
{
    cat << EOF > ./build/package/mac_osx/pkg-dmg
#!/bin/sh
set -e
export LC_ALL=C

cd \$2
DMGFILE=\$4

# We need group readability for some Macs to be able to handle /Applications
# installation. Still unclear exactly why this is -- it is not dependent on
# OSX version...
find . -executable -exec chmod 750 {} \;
find . ! -executable -exec chmod 640 {} \;

find . -type f | sed -e 's/^\.\///' | sort | xargs -i echo "{}={}" > /tmp/filelist.txt
find . -type l | sed -e 's/^\.\///' | sort | xargs -i echo "{}={}" >> /tmp/filelist.txt

mkisofs -D -V "\$6" -no-pad -R -apple -o /tmp/icecat-uncompressed.dmg -path-list /tmp/filelist.txt -graft-points -gid 20 -dir-mode 0750 -new-dir-mode 0750

dmg dmg /tmp/icecat-uncompressed.dmg \$4
rm /tmp/icecat-uncompressed.dmg

find . -executable -exec chmod 755 {} \;
find . ! -executable -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;
EOF
}

configure_extensions()
{
    # Disable search field at extensions panel
    #sed  '/header-search/d; /search.placeholder/d' -i toolkit/mozapps/extensions/content/extensions.xul
    cat << EOF >> toolkit/mozapps/extensions/content/extensions.css
#header-search {
  display:none;
}
EOF

    # Add extensions to manifest
    local extension
    for extension in $(ls "${DATADIR}"/extensions/); do
        sed "/Browser Chrome Files/s%$%\n@BINPATH@/browser/extensions/${extension}/*%" -i browser/installer/package-manifest.in
        sed "/Browser Chrome Files/s%$%\n@BINPATH@/extensions/${extension}/*%" -i mobile/android/installer/package-manifest.in
        #echo "DIRS += ['${extension}']" >> browser/app/profile/extensions/moz.build
        #touch browser/app/profile/extensions/${extension}/moz.build
    done

    cp "${DATADIR}"/extensions/ extensions/gnu -a

    cat << EOF >> browser/app/Makefile.in
libs::
	mkdir -p \$(DIST)/bin/browser/extensions
	cp -af \$(topsrcdir)/extensions/gnu/* \$(DIST)/bin/browser/extensions/
	mkdir -p \$(DIST)/icecat/browser/extensions
	cp -af \$(topsrcdir)/extensions/gnu/* \$(DIST)/icecat/browser/extensions/
EOF

    cat << EOF >> mobile/android/app/Makefile.in
libs::
	mkdir -p \$(DIST)/bin/distribution
	cp -af \$(topsrcdir)/extensions/gnu/ \$(DIST)/bin/distribution/extensions/
EOF

    #sed '/^make-package-internal:/ s%$%\n\tcp $(topsrcdir)/extensions.gnu/* $(DIST)/icecat/browser/extensions -a%' -i toolkit/mozapps/installer/packager.mk

    # Add extensions to allowed-dupes.mn
    cat << EOF >> ./browser/installer/allowed-dupes.mn
# IceCat extras
browser/chrome/browser/content/browser/aboutaccounts/images/fox.png
EOF
    find extensions/gnu/ | sort | sed s=extensions/gnu=browser/extensions= >> ./browser/installer/allowed-dupes.mn
    find extensions/gnu/ | sort | sed s=extensions/gnu=distribution/extensions= >> mobile/android/installer/allowed-dupes.mn
}

configure_onboarding()
{
    return # FIXME: TODO: adapt the following to ESR 78.x

    mkdir -p browser/extensions/onboarding browser/extensions/onboarding/content browser/extensions/onboarding/locales/en-US
    cp "${DATADIR}"/onboarding/bootstrap.js browser/extensions/onboarding
    cp "${DATADIR}"/onboarding/onboarding.js browser/extensions/onboarding/content
    cp "${DATADIR}"/onboarding/onboarding.properties browser/extensions/onboarding/locales/en-US
    for locale in $(ls -1 "${DATADIR}"/onboarding/locales/); do
        mkdir -p l10n/$locale/browser/extensions/onboarding || true
        cp "${DATADIR}"/onboarding/locales/$locale/onboarding.properties l10n/$locale/browser/extensions/onboarding
    done
}

apply_bugfixes()
{
    # Fix CVE-2009-4029
    sed 's/777/755/;' -i toolkit/crashreporter/google-breakpad/Makefile.in
    #(cd toolkit/crashreporter/google-breakpad; aclocal)
    #(cd toolkit/crashreporter/google-breakpad; automake)

    # Fix CVE-2012-3386
    /bin/sed 's/chmod a+w/chmod u+w/' -i ./js/src/ctypes/libffi/Makefile.in ./toolkit/crashreporter/google-breakpad/Makefile.in ./toolkit/crashreporter/google-breakpad/src/third_party/glog/Makefile.in || true
}

finalize_sourceball()
{
    cd ..
    echo Packaging tarball
    tar cfj ${OUTPUT_SOURCEBALL} ${SOURCEDIR}
}


###############################################################################
# entry point
###############################################################################

validate_env || exit 1
prepare_env
fetch_source
verify_sources
extract_sources
fetch_l10n
apply_patches
configure
configure_search
# configure_mobile
apply_branding
apply_batch_branding
apply_icons_branding
prepare_macos_packaging
configure_extensions
configure_onboarding
apply_bugfixes
finalize_sourceball