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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

MOZ_ESR=

MOZ_PV=${PV}
MOZ_PV_SUFFIX=
if [[ ${PV} =~ (_(alpha|beta|rc).*)$ ]] ; then
	MOZ_PV_SUFFIX=${BASH_REMATCH[1]}

	# Convert the ebuild version to the upstream Mozilla version
	MOZ_PV="${MOZ_PV/_alpha/a}" # Handle alpha for SRC_URI
	MOZ_PV="${MOZ_PV/_beta/b}"  # Handle beta for SRC_URI
	MOZ_PV="${MOZ_PV%%_rc*}"    # Handle rc for SRC_URI
fi

if [[ -n ${MOZ_ESR} ]] ; then
	# ESR releases have slightly different version numbers
	MOZ_PV="${MOZ_PV}esr"
fi

MOZ_PN="${PN%-bin}"
MOZ_P="${MOZ_PN}-${MOZ_PV}"
MOZ_PV_DISTFILES="${MOZ_PV}${MOZ_PV_SUFFIX}"
MOZ_P_DISTFILES="${MOZ_PN}-${MOZ_PV_DISTFILES}"

inherit desktop pax-utils xdg

MOZ_SRC_BASE_URI="https://archive.mozilla.org/pub/${MOZ_PN}/releases/${MOZ_PV}"

SRC_URI="amd64? ( ${MOZ_SRC_BASE_URI}/linux-x86_64/en-US/${MOZ_P}.tar.bz2 -> ${PN}_x86_64-${PV}.tar.bz2 )
	x86? ( ${MOZ_SRC_BASE_URI}/linux-i686/en-US/${MOZ_P}.tar.bz2 -> ${PN}_i686-${PV}.tar.bz2 )"

DESCRIPTION="Firefox Web Browser"
HOMEPAGE="https://www.mozilla.com/firefox"

KEYWORDS="-* amd64 x86"
SLOT="0/$(ver_cut 1)"
LICENSE="MPL-2.0 GPL-2 LGPL-2.1"
IUSE="+alsa +ffmpeg +gmp-autoupdate +pulseaudio selinux wayland"

RESTRICT="strip"

BDEPEND="app-arch/unzip
	alsa? (
		!pulseaudio? (
			dev-util/patchelf
		)
	)"

CDEPEND="alsa? (
		!pulseaudio? (
			media-sound/apulse
		)
	)"

DEPEND="${CDEPEND}"

RDEPEND="${CDEPEND}
	dev-libs/atk
	dev-libs/dbus-glib
	>=dev-libs/glib-2.26:2
	media-libs/fontconfig
	>=media-libs/freetype-2.4.10
	sys-apps/dbus
	virtual/freedesktop-icon-theme
	>=x11-libs/cairo-1.10[X]
	x11-libs/gdk-pixbuf
	>=x11-libs/gtk+-3.11:3[wayland?]
	x11-libs/libX11
	x11-libs/libXcomposite
	x11-libs/libXdamage
	x11-libs/libXext
	x11-libs/libXfixes
	x11-libs/libXrender
	x11-libs/libXt
	>=x11-libs/pango-1.22.0
	ffmpeg? ( media-video/ffmpeg )
	pulseaudio? ( media-sound/pulseaudio )
	selinux? ( sec-policy/selinux-mozilla )
"

QA_PREBUILT="opt/${MOZ_PN}/*"

# Allow MOZ_GMP_PLUGIN_LIST to be set in an eclass or
# overridden in the enviromnent (advanced hackers only)
if [[ -z "${MOZ_GMP_PLUGIN_LIST+set}" ]] ; then
	MOZ_GMP_PLUGIN_LIST=( gmp-gmpopenh264 gmp-widevinecdm )
fi

MOZ_LANGS=(
	ach af an ar ast az be bg bn br bs ca-valencia ca cak cs cy
	da de dsb el en-CA en-GB en-US eo es-AR es-CL es-ES es-MX et eu
	fa ff fi fr fy-NL ga-IE gd gl gn gu-IN he hi-IN hr hsb hu hy-AM
	ia id is it ja ka kab kk km kn ko lij lt lv mk mr ms my
	nb-NO ne-NP nl nn-NO oc pa-IN pl pt-BR pt-PT rm ro ru
	si sk sl son sq sr sv-SE ta te th tl tr trs uk ur uz vi
	xh zh-CN zh-TW
)

mozilla_set_globals() {
	# https://bugs.gentoo.org/587334
	local MOZ_TOO_REGIONALIZED_FOR_L10N=(
		fy-NL ga-IE gu-IN hi-IN hy-AM nb-NO ne-NP nn-NO pa-IN sv-SE
	)

	local lang xflag
	for lang in "${MOZ_LANGS[@]}" ; do
		# en and en_US are handled internally
		if [[ ${lang} == en ]] || [[ ${lang} == en-US ]] ; then
			continue
		fi

		# strip region subtag if $lang is in the list
		if has ${lang} "${MOZ_TOO_REGIONALIZED_FOR_L10N[@]}" ; then
			xflag=${lang%%-*}
		else
			xflag=${lang}
		fi

		SRC_URI+=" l10n_${xflag/[_@]/-}? ("
		SRC_URI+=" ${MOZ_SRC_BASE_URI}/linux-x86_64/xpi/${lang}.xpi -> ${MOZ_P_DISTFILES}-${lang}.xpi"
		SRC_URI+=" )"
		IUSE+=" l10n_${xflag/[_@]/-}"
	done
}
mozilla_set_globals

moz_install_xpi() {
	debug-print-function ${FUNCNAME} "$@"

	if [[ ${#} -lt 2 ]] ; then
		die "${FUNCNAME} requires at least two arguments"
	fi

	local DESTDIR=${1}
	shift

	insinto "${DESTDIR}"

	local emid xpi_file xpi_tmp_dir
	for xpi_file in "${@}" ; do
		emid=
		xpi_tmp_dir=$(mktemp -d --tmpdir="${T}")

		# Unpack XPI
		unzip -qq "${xpi_file}" -d "${xpi_tmp_dir}" || die

		# Determine extension ID
		if [[ -f "${xpi_tmp_dir}/install.rdf" ]] ; then
			emid=$(sed -n -e '/install-manifest/,$ { /em:id/!d; s/.*[\">]\([^\"<>]*\)[\"<].*/\1/; p; q }' "${xpi_tmp_dir}/install.rdf")
			[[ -z "${emid}" ]] && die "failed to determine extension id from install.rdf"
		elif [[ -f "${xpi_tmp_dir}/manifest.json" ]] ; then
			emid=$(sed -n -e 's/.*"id": "\([^"]*\)".*/\1/p' "${xpi_tmp_dir}/manifest.json")
			[[ -z "${emid}" ]] && die "failed to determine extension id from manifest.json"
		else
			die "failed to determine extension id"
		fi

		einfo "Installing ${emid}.xpi into ${ED}${DESTDIR} ..."
		newins "${xpi_file}" "${emid}.xpi"
	done
}

src_unpack() {
	local _lp_dir="${WORKDIR}/language_packs"
	local _src_file

	mkdir "${S}" || die

	if [[ ! -d "${_lp_dir}" ]] ; then
		mkdir "${_lp_dir}" || die
	fi

	for _src_file in ${A} ; do
		if [[ ${_src_file} == *.xpi ]]; then
			cp "${DISTDIR}/${_src_file}" "${_lp_dir}" || die "Failed to copy '${_src_file}' to '${_lp_dir}'!"
		else
			MY_SRC_FILE=${_src_file}
		fi
	done
}

src_install() {
	# Set MOZILLA_FIVE_HOME
	local MOZILLA_FIVE_HOME="/opt/${MOZ_PN}"

	dodir /opt
	pushd "${ED}"/opt &>/dev/null || die
	unpack "${MY_SRC_FILE}"
	popd &>/dev/null || die

	pax-mark m \
		"${ED}${MOZILLA_FIVE_HOME}"/${MOZ_PN} \
		"${ED}${MOZILLA_FIVE_HOME}"/${MOZ_PN}-bin \
		"${ED}${MOZILLA_FIVE_HOME}"/plugin-container

	# Patch alsa support
	local apulselib=
	if use alsa && ! use pulseaudio ; then
		apulselib="${EPREFIX}/usr/$(get_libdir)/apulse"
		patchelf --set-rpath "${apulselib}" "${ED}${MOZILLA_FIVE_HOME}/libxul.so" || die
	fi

	# Install policy (currently only used to disable application updates)
	insinto "${MOZILLA_FIVE_HOME}/distribution"
	newins "${FILESDIR}"/disable-auto-update.policy.json policies.json

	# Install system-wide preferences
	local PREFS_DIR="${MOZILLA_FIVE_HOME}/browser/defaults/preferences"
	insinto "${PREFS_DIR}"
	newins "${FILESDIR}"/gentoo-default-prefs.js all-gentoo.js

	local GENTOO_PREFS="${ED}${PREFS_DIR}/all-gentoo.js"

	if ! use gmp-autoupdate ; then
		local plugin
		for plugin in "${MOZ_GMP_PLUGIN_LIST[@]}" ; do
			einfo "Disabling auto-update for ${plugin} plugin ..."
			cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to disable autoupdate for ${plugin} media plugin"
			pref("media.${plugin}.autoupdate",   false);
			EOF
		done
	fi

	# Install language packs
	local langpacks=( $(find "${WORKDIR}/language_packs" -type f -name '*.xpi') )
	if [[ -n "${langpacks}" ]] ; then
		moz_install_xpi "${MOZILLA_FIVE_HOME}/distribution/extensions" "${langpacks[@]}"
	fi

	# Install icons
	local icon_srcdir="${ED}/${MOZILLA_FIVE_HOME}/browser/chrome/icons/default"
	local icon_symbolic_file="${FILESDIR}/firefox-symbolic.svg"

	insinto /usr/share/icons/hicolor/symbolic/apps
	newins "${icon_symbolic_file}" ${PN}-symbolic.svg

	local icon size
	for icon in "${icon_srcdir}"/default*.png ; do
		size=${icon%.png}
		size=${size##*/default}

		if [[ ${size} -eq 48 ]] ; then
			newicon "${icon}" ${PN}.png
		fi

		newicon -s ${size} "${icon}" ${PN}.png
	done

	# Install menus
	local wrapper_wayland="${PN}-wayland.sh"
	local wrapper_x11="${PN}-x11.sh"
	local desktop_file="${FILESDIR}/${PN}-r2.desktop"
	local display_protocols="auto X11"
	local icon="${PN}"
	local name="Mozilla ${MOZ_PN^} (bin)"
	local use_wayland="false"

	if use wayland ; then
		display_protocols+=" Wayland"
		use_wayland="true"
	fi

	local app_name desktop_filename display_protocol exec_command
	for display_protocol in ${display_protocols} ; do
		app_name="${name} on ${display_protocol}"
		desktop_filename="${PN}-${display_protocol,,}.desktop"

		case ${display_protocol} in
			Wayland)
				exec_command="${PN}-wayland --name ${PN}-wayland"
				newbin "${FILESDIR}/${wrapper_wayland}" ${PN}-wayland
				;;
			X11)
				if ! use wayland ; then
					# Exit loop here because there's no choice so
					# we don't need wrapper/.desktop file for X11.
					continue
				fi

				exec_command="${PN}-x11 --name ${PN}-x11"
				newbin "${FILESDIR}/${wrapper_x11}" ${PN}-x11
				;;
			*)
				app_name="${name}"
				desktop_filename="${PN}.desktop"
				exec_command="${PN}"
				;;
		esac

		cp "${desktop_file}" "${WORKDIR}/${PN}.desktop-template" || die

		sed -i \
			-e "s:@NAME@:${app_name}:" \
			-e "s:@EXEC@:${exec_command}:" \
			-e "s:@ICON@:${icon}:" \
			"${WORKDIR}/${PN}.desktop-template" \
			|| die

		newmenu "${WORKDIR}/${PN}.desktop-template" "${desktop_filename}"

		rm "${WORKDIR}/${PN}.desktop-template" || die
	done

	# Install generic wrapper script
	[[ -f "${ED}/usr/bin/${PN}" ]] && rm "${ED}/usr/bin/${PN}"
	newbin "${FILESDIR}/${PN}.sh" ${PN}

	# Update wrapper
	local wrapper
	for wrapper in \
		"${ED}/usr/bin/${PN}" \
		"${ED}/usr/bin/${PN}-x11" \
		"${ED}/usr/bin/${PN}-wayland" \
	; do
		[[ ! -f "${wrapper}" ]] && continue

		sed -i \
			-e "s:@PREFIX@:${EPREFIX}/usr:" \
			-e "s:@MOZ_FIVE_HOME@:${MOZILLA_FIVE_HOME}:" \
			-e "s:@APULSELIB_DIR@:${apulselib}:" \
			-e "s:@DEFAULT_WAYLAND@:${use_wayland}:" \
			"${wrapper}" \
			|| die
	done
}

pkg_postinst() {
	xdg_pkg_postinst

	if ! use gmp-autoupdate ; then
		elog "USE='-gmp-autoupdate' has disabled the following plugins from updating or"
		elog "installing into new profiles:"
		local plugin
		for plugin in "${MOZ_GMP_PLUGIN_LIST[@]}" ; do
			elog "\t ${plugin}"
		done
		elog
	fi

	if ! has_version 'gnome-base/gconf' || ! has_version 'gnome-base/orbit' \
		|| ! has_version 'net-misc/curl'; then
		einfo
		einfo "For using the crashreporter, you need gnome-base/gconf,"
		einfo "gnome-base/orbit and net-misc/curl emerged."
		einfo
	fi

	use ffmpeg || ewarn "USE=-ffmpeg : HTML5 video will not render without media-video/ffmpeg installed"

	local HAS_AUDIO=0
	if use alsa || use pulseaudio; then
		HAS_AUDIO=1
	fi

	if [[ ${HAS_AUDIO} -eq 0 ]] ; then
		ewarn "USE=-pulseaudio & USE=-alsa : For audio please either set USE=pulseaudio or USE=alsa!"
	fi

	local show_doh_information show_normandy_information

	if [[ -z "${REPLACING_VERSIONS}" ]] ; then
		# New install; Tell user that DoH is disabled by default
		show_doh_information=yes
		show_normandy_information=yes
	else
		local replacing_version
		for replacing_version in ${REPLACING_VERSIONS} ; do
			if ver_test "${replacing_version}" -lt 70 ; then
				# Tell user only once about our DoH default
				show_doh_information=yes
			fi

			if ver_test "${replacing_version}" -lt 74.0-r2 ; then
				# Tell user only once about our Normandy default
				show_normandy_information=yes
			fi
		done
	fi

	if [[ -n "${show_doh_information}" ]] ; then
		elog
		elog "Note regarding Trusted Recursive Resolver aka DNS-over-HTTPS (DoH):"
		elog "Due to privacy concerns (encrypting DNS might be a good thing, sending all"
		elog "DNS traffic to Cloudflare by default is not a good idea and applications"
		elog "should respect OS configured settings), \"network.trr.mode\" was set to 5"
		elog "(\"Off by choice\") by default."
		elog "You can enable DNS-over-HTTPS in ${PN^}'s preferences."
	fi

	# bug 713782
	if [[ -n "${show_normandy_information}" ]] ; then
		elog
		elog "Upstream operates a service named Normandy which allows Mozilla to"
		elog "push changes for default settings or even install new add-ons remotely."
		elog "While this can be useful to address problems like 'Armagadd-on 2.0' or"
		elog "revert previous decisions to disable TLS 1.0/1.1, privacy and security"
		elog "concerns prevail, which is why we have switched off the use of this"
		elog "service by default."
		elog
		elog "To re-enable this service set"
		elog
		elog "    app.normandy.enabled=true"
		elog
		elog "in about:config."
	fi
}