106 lines
3.6 KiB
Bash
106 lines
3.6 KiB
Bash
#!/usr/bin/env bash
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#grep -e 'Videobridge.createConference\|Conference.expire' jvb.log > 11
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### Variables
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# log files
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LOGFILE="../../jvb.log"
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ROTATED_LOGFILE="../../jvb.log.1"
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# SQLite database file
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DB="../../jitsi-stats.db"
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###
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# SQLite queries
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db_get_state='SELECT filename, filetime, position, inode FROM state WHERE id = 1;'
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db_set_state_template="UPDATE state SET time=datetime('now'), filename='%s', filetime='%s', position='%s', inode='%s' WHERE id = 1;"
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db_insert_template="INSERT INTO conferences (conference_name, conference_id, start, end) VALUES ('%s', '%s', '%s', '%s');"
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# Get the last processed state from the database
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get_state() {
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sqlite3 "$DB" "$db_get_state"
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}
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# Update the state database
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set_state() {
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local filename=$1
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local filetime=$2
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local position=${3:-0}
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local inode=$4
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db_set_state=$(printf "$db_set_state_template" "$filename" "$filetime" "$position" "$inode")
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sqlite3 "$DB" "$db_set_state"
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}
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# Retrieve last log file and position inside it
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IFS='|' read -r last_file last_filetime last_pos last_inode <<< $(get_state)
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# Initialize logfile vars
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last_pos=${last_pos:-0}
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current_inode=$(stat -c '%i' "$LOGFILE")
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current_filetime=$(stat -c '%Y' "$LOGFILE")
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# Local assoc array for conference events tracking
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declare -A start_times
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jvb_log_parse() {
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local file=$1
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local start_pos=$2
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local new_last_pos="$start_pos"
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# We open the file and start reading from $start_pos bytes
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exec 3<"$file"
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while IFS= read -r line; do
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# save new position (previous plus bytes in current line plus 1 for the new line)
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new_last_pos=$((new_last_pos + ${#line} + 1))
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# locate conference starting event
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if [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\ Videobridge\.createConference#[0-9]+:\ create_conf,\ id=([a-zA-Z0-9]+) ]]; then
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timestamp="${BASH_REMATCH[1]}"
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conferenceId="${BASH_REMATCH[2]}"
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start_times["$conferenceId"]="$timestamp"
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# locate the corresponding conference ending event
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elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=([a-zA-Z0-9]+)\ .*conf_name=([^ ]+)@.*\]\ Conference\.expire ]]; then
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end_time="${BASH_REMATCH[1]}"
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conferenceId="${BASH_REMATCH[2]}"
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conferenceName="${BASH_REMATCH[3]}"
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start_time="${start_times["$conferenceId"]}"
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if [[ -n "$start_time" ]]; then
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db_insert=$(printf "$db_insert_template" "$conferenceName" "$conferenceId" "$start_time" "$end_time")
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sqlite3 "$DB" "$db_insert"
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unset start_times["$conferenceId"]
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fi
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fi
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# We don't use pipe, but process substitution '<(dd...)' to avoid running while loop in subshell and lose the 'new_last_pos' value
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done < <(dd bs=1 skip="$start_pos" <&3 2>/dev/null)
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# Close the file descriptor and return the new position value
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exec 3<&-
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echo "$new_last_pos"
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}
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# parse the rotated log file
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if [[ "$last_file" == "$LOGFILE" && -f "$ROTATED_LOGFILE" ]]; then
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echo "Processing the rotated log file: $ROTATED_LOGFILE"
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last_pos=$(jvb_log_parse "$ROTATED_LOGFILE" 0)
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last_file="$ROTATED_LOGFILE"
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last_inode=$(stat -c '%i' "$ROTATED_LOGFILE")
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last_filetime=$(stat -c '%Y' "$ROTATED_LOGFILE")
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set_state "$last_file" "$last_filetime" "$last_pos" "$last_inode"
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fi
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# parse the current log file
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echo "Processing the current log file: $LOGFILE"
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new_last_pos=$(jvb_log_parse "$LOGFILE" "$last_pos")
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# DEBUG
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echo "New last position after parsing: $new_last_pos"
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# update the state in db
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set_state "$LOGFILE" "$current_filetime" "$new_last_pos" "$current_inode"
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echo "Data import finished."
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