From eb3c5e878c4a7d3439501d939c3010324d59e08c Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Fri, 19 Jun 2020 12:16:02 -0400
Subject: sideloader implementation begins

---
 firefox-sideloader/functions.sh | 107 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 firefox-sideloader/functions.sh

diff --git a/firefox-sideloader/functions.sh b/firefox-sideloader/functions.sh
new file mode 100644
index 0000000..7b144df
--- /dev/null
+++ b/firefox-sideloader/functions.sh
@@ -0,0 +1,107 @@
+#!/bin/sh
+
+profiles_ini=~/.mozilla/firefox/profiles.ini
+
+get_default_firefox_profile_basename()
+{
+    < "$profiles_ini" \
+    perl -ne 'BEGIN { $/ = "" }
+              /^Default=1$/m || next;
+              /^Path=(.+)$/m || die;
+              print "$1\n";
+              $printed = 1;
+              last;
+
+              END { die unless $printed }'
+}
+
+get_default_firefox_profile_dir()
+{
+    local prof
+    prof=$(get_default_firefox_profile_basename) || return
+    printf '%s/%s\n' "${profiles_ini%/*}" "$prof"
+}
+
+get_basename_from_profile_name()
+{
+    < "$profiles_ini" \
+      ARG="$1" \
+      perl -ne 'BEGIN { $/ = "" }
+                /^Name=(.+)$/m || next;
+                $1 eq $ENV{ARG} || next;
+                /^Path=(.+)$/m || next;
+                print "$1";
+                $printed = 1;
+                last;
+
+                END { die unless $printed }'
+}
+get_profile_dir_from_profile_name()
+{
+    local prof
+    prof=$(get_basename_from_profile_name "$1") || return
+    printf '%s/%s\n' "${profiles_ini%/*}" "$prof"
+}
+
+get_profile_dir()
+{
+    if [ "$1" ]
+    then get_profile_dir_from_profile_name "$1"
+    else get_default_firefox_profile_dir
+    fi
+}
+
+illustrate_leak()
+{
+    local prof
+    which jq >/dev/null || sudo apt-get install jq
+    prof=$(get_default_firefox_profile_dir) && jq . < "$prof"/extensions.json | grep "$HOME"
+}
+
+copy_extensions_json()
+{
+    local new="$1" old="$2" f='extensions.json' filter_json
+    filter_json="s/${old//\//\\/}/${new//\//\\/}/g"
+    [ -d "$old" -a -d "$new" ] || return
+    sed -e "$filter_json" > "$new"/"$f" < "$old"/"$f"
+}
+
+clone_profile_raw()
+{
+    local old_profile_dir="$1" new_profile_name="$2"
+    [ -d "$old_profile_dir" ] || return
+    [ -d "$old_profile_dir"/extensions ] || return
+
+    firefox -createProfile "$new_profile_name" || return
+    new_profile_dir=$(get_profile_dir "$new_profile_name") || return
+    [ "$new_profile_dir" ] || return
+    [ "$new_profile_dir" != "$old_profile_dir" ] || return
+
+    cp -r --preserve=mode,timestamps -t "$new_profile_dir" -- "$old_profile_dir"/extensions/ || return
+
+    copy_extensions_json "$new_profile_dir" "$old_profile_dir"
+}
+
+clone_profile()
+{
+    local old_profile_name="$1" old_profile_dir
+    shift
+    old_profile_dir=$(get_profile_dir "$old_profile_name") || return
+    clone_profile_raw "$old_profile_dir" "$@"
+}
+
+clone_default_profile()
+{
+    new_name=$1
+    [ "$new_name" ] || return
+    old_dir=$(get_default_firefox_profile_dir) || return
+    [ "$old_dir" ] || return
+    clone_profile_raw "$old_dir" "$new_name"
+}
+
+runtest()
+{
+    . functions.sh
+    clone_default_profile "test.$(date -I)"
+    echo r=$?
+}
-- 
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