Enhancements

Add Subscription-UserInfo header to exporter, supports extracting from original headers and from info nodes.
Optimize codes.

base/pref.ini

@@ -35,6 +35,21 @@ proxy_subscription=NONE
 ;Append a proxy type string ([SS] [SSR] [VMess]) to node remark.
 append_proxy_type=false
 
+[userinfo]
+;Rules to extract stream data from node
+;Format: full_match_regex|new_format_regex
+;where new_format_regex should be like "total=$1&left=$2&used=$3"
+stream_rule=^剩余流量：(.*?) (.*)$|total=$1&left=$2
+stream_rule=^Bandwidth: (.*?)/(.*)$|used=$1&total=$2
+stream_rule=^\[.*?\]剩余(.*?)@(?:.*)$|total=$1
+
+;Rules to extract expire time data from node
+;Format: full_match_regex|new_format_regex
+;where new_format_regex should follow this example: yyyy:mm:dd:hh:mm:ss
+time_rule=^过期时间：(\d+)-(\d+)-(\d+) (\d+):(\d+):(\d+)$|$1:$2:$3:$4:$5:$6
+time_rule=^到期时间:(\d+)-(\d+)-(\d+)$|$1:$2:$3:0:0:0
+time_rule=^Smart Access expire: (\d+)/(\d+)/(\d+)$|$1:$2:$3:0:0:0
+
 [node_pref]
 udp_flag=false
 tcp_fast_open_flag=false