#!/usr/bin/env bash

# Use of unset variable is an error
set -u
# If any part of a pipeline of commands fails, the whole pipeline fails
set -o pipefail

# Script to sign executables, dylibs and frameworks in an app bundle plus the bundle itself. Called
# from installer::simplepackage::create_package() in solenv/bin/modules/installer/simplepackage.pm
# and the test-install target in Makefile.in.

test `uname` = Darwin || { echo This is for macOS only; exit 1; }

test $# = 1 || { echo Usage: $0 app-bundle; exit 1; }

for V in \
    BUILDDIR \
    MACOSX_BUNDLE_IDENTIFIER \
    MACOSX_CODESIGNING_IDENTITY; do
    if test -z "$(eval echo '$'$V)"; then
       echo No '$'$V "environment variable! This should be run in a build only"
       exit 1
    fi
done

APP_BUNDLE="$1"
entitlements=
if test -n "$ENABLE_MACOSX_SANDBOX"; then
    # In a sandboxed build executables need the entitlements
    entitlements="--entitlements $BUILDDIR/lo.xcent"
    # All data files are in Resources and included in the app bundle signature
    # through that. I think.
    other_files=''
else
    # We then want to sign data files, too, hmm.
    entitlements="--entitlements $BUILDDIR/hardened_runtime.xcent"
    other_files="\
 -or -name '*.fodt' -or -name 'schema.strings' -or -name 'schema.xml' \
 -or -name '*.jar' -or -name 'LICENSE' -or -name 'LICENSE.html' \
 -or -name '*.applescript' -or -name '*.odt'"
fi

# Sign jnilibs first as workaround for signing issue on old baseline
# order matters/screws things up otherwise
find -d "$APP_BUNDLE" \( -name '*.jnilib' \) ! -type l |
    while read file; do
    id=`echo ${file#${APP_BUNDLE}/Contents/} | sed -e 's,/,.,g'`
    codesign --force --identifier=$MACOSX_BUNDLE_IDENTIFIER.$id --sign "$MACOSX_CODESIGNING_IDENTITY" "$file" || exit 1
done

# Sign dylibs
#
# The dylibs in the Python framework are called *.so. Go figure
#
# On Mavericks also would like to have data files signed...
# add some where it makes sense. Make a depth-first search to sign the contents
# of e.g. the spotlight plugin before attempting to sign the plugin itself

find "$APP_BUNDLE" \( -name '*.dylib' -or -name '*.dylib.*' -or -name '*.so' \
        $other_files \) ! -type l |
while read file; do
    id=`echo ${file#${APP_BUNDLE}/Contents/} | sed -e 's,/,.,g'`
    codesign --force --identifier=$MACOSX_BUNDLE_IDENTIFIER.$id --sign "$MACOSX_CODESIGNING_IDENTITY" "$file" || exit 1
done

# Sign included bundles. First .app ones (i.e. the Python.app inside
# the LibreOfficePython.framework. Be generic for kicks...)

find "$APP_BUNDLE"/Contents -name '*.app' -type d |
while read app; do
    # Assume the app has a XML (and not binary) Info.plist
    id=`grep -A 1 '<key>CFBundleIdentifier</key>' $app/Contents/Info.plist | tail -1 | sed -e 's,.*<string>,,' -e 's,</string>.*,,'`
    codesign --options=runtime --force --identifier=$id --sign "$MACOSX_CODESIGNING_IDENTITY" $entitlements "$app" || exit 1
done

# Then .framework ones. Again, be generic just for kicks.

find "$APP_BUNDLE" -name '*.framework' -type d |
while read framework; do
    for version in "$framework"/Versions/*; do
        if test ! -L "$version" -a -d "$version"; then
	    # Assume the framework has a XML (and not binary) Info.plist
	    id=`grep -A 1 '<key>CFBundleIdentifier</key>' $version/Resources/Info.plist | tail -1 | sed -e 's,.*<string>,,' -e 's,</string>.*,,'`
	    if test -d $version/bin; then
		# files in bin are not covered by signing the framework...
		for scriptorexecutable in $(find $version/bin/ -type f); do
		    codesign --options=runtime --force --identifier=$id --sign "$MACOSX_CODESIGNING_IDENTITY" "$scriptorexecutable" || exit 1
		done
	    fi
            codesign --force --identifier=$id --sign "$MACOSX_CODESIGNING_IDENTITY" "$version" || exit 1
	fi
    done
done

# Then mdimporters

find "$APP_BUNDLE" -name '*.mdimporter' -type d |
while read bundle; do
    codesign --force --prefix=$MACOSX_BUNDLE_IDENTIFIER. --sign "$MACOSX_CODESIGNING_IDENTITY" "$bundle" || exit 1
done

# Sign executables

find "$APP_BUNDLE/Contents/MacOS" -type f |
while read file; do
    case "$file" in
	*/soffice)
	    ;;
	*)
	    id=`echo ${file#${APP_BUNDLE}/Contents/} | sed -e 's,/,.,g'`
	    codesign --force --options=runtime --identifier=$MACOSX_BUNDLE_IDENTIFIER.$id --sign "$MACOSX_CODESIGNING_IDENTITY" $entitlements "$file" || exit 1
	    ;;
    esac
done

# Sign the app bundle as a whole which means (re-)signing the
# CFBundleExecutable from Info.plist, i.e. soffice, plus the contents
# of the Resources tree.
#
# At this stage we also attach the entitlements in the sandboxing case
#
# Also omit some files from the Bundle's seal via the resource-rules
# (bootstraprc and similar that the user might adjust and image files)
# See also https://developer.apple.com/library/mac/technotes/tn2206/

id=`echo ${PRODUCTNAME} | tr ' ' '-'`

codesign --force --options=runtime --identifier="${MACOSX_BUNDLE_IDENTIFIER}" --sign "$MACOSX_CODESIGNING_IDENTITY" $entitlements "$APP_BUNDLE" || exit 1

exit 0