extract authinfo functions

1 files changed, 29 insertions, 13 deletions

diff --git a/iptv.sh b/iptv.sh
index 2e5b3f2..be2c107 100755
--- a/iptv.sh
+++ b/iptv.sh
@@ -72,6 +72,30 @@ categorize_by_channel_name () {
   echo "$result"
 }
 
+build_authinfo () {
+  local encry_token="$1"
+  local user_id="$2"
+  local device_id="$3"
+  local ip_address="$4"
+  local mac_address="$5"
+
+  local random_num=$(( (RANDOM << 15 | RANDOM) % 99999999 + 1 ))
+  local parts=("$random_num" "$encry_token" "$user_id" "$device_id" "$ip_address" "$mac_address" "Reserved" "OTT")
+  local joined
+  joined=$(IFS='$'; printf '%s' "${parts[*]}")
+
+  printf '%s\n' "$joined"
+}
+
+encrypt_authinfo () {
+  local data="$1"
+  local key="$2"
+  local res
+  res=$(printf '%s' "$data" | openssl enc -e -des-ede3 -K "$key" -nosalt 2>/dev/null | xxd -p -u -c 0)
+
+  printf '%s\n' "$res"
+}
+
 make_epg () {
   # Check dependencies
   ensure_curl_is_installed
@@ -203,20 +227,12 @@ make_playlist () {
   encry_token=$(echo "$response" | jq -r '.EncryToken')
 
   # Authenticate
-  pass=$(printf "%-024s" "$password" | tr ' ' 0 | xxd -p)
-
-  authinfo=(
-      $(shuf -i 1-99999999 -n 1) $encry_token
-      $user_id $device_id
-      $ip_address $mac_address
-      "Reserved" "OTT"
-  )
-
-  authinfo=$(IFS='$'; echo "${authinfo[*]}")
+  local key
+  key=$(printf "%-24s" "$password" | tr ' ' 0 | xxd -p)
 
-  authinfo=$(echo -n $authinfo | \
-    openssl enc -e -des-ede3 -K $pass -nosalt 2>/dev/null | \
-    xxd -p -u -c 0)
+  local authinfo
+  authinfo=$(build_authinfo "$encry_token" "$user_id" "$device_id" "$ip_address" "$mac_address") || fatal 'Failed to build authinfo'
+  authinfo=$(encrypt_authinfo "$authinfo" "$key") || fatal 'Failed to encrypt authinfo'
 
   response=$(curl --silent $curl_args \
     "http://$host/EPG/oauth/v2/token?grant_type=EncryToken&client_id=jiulian&UserID=$user_id&DeviceType=UNT400G&DeviceVersion=5.5.021&authinfo=$authinfo&issmarthomestb=1&tvdesktopid=")