refactor(logs): move sanitize (#1636)

internal/logger/sanitize.go

@@ -0,0 +1,118 @@
+package logger
+
+import (
+	"bufio"
+	"io"
+	"os"
+	"regexp"
+	"strings"
+
+	"github.com/rs/zerolog/log"
+)
+
+var (
+	regexReplacements = []struct {
+		pattern *regexp.Regexp
+		repl    string
+	}{
+		{
+			pattern: regexp.MustCompile(`("apikey\\":\s?\\"|"host\\":\s?\\"|"password\\":\s?\\"|"user\\":\s?\\"|ExternalWebhookHost:)(\S+)(\\"|\sExternalWebhookData:)`),
+			repl:    "${1}REDACTED${3}",
+		},
+		{
+			pattern: regexp.MustCompile(`(torrent_pass|passkey|authkey|auth|secret_key|api|apikey)=([a-zA-Z0-9]+)`),
+			repl:    "${1}=REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(`(https?://[^\s]+/((rss/download/[a-zA-Z0-9]+/)|torrent/download/((auto\.[a-zA-Z0-9]+\.|[a-zA-Z0-9]+\.))))([a-zA-Z0-9]+)`),
+			repl:    "${1}REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(`(https?://)(.*?):(.*?)@`),
+			repl:    "${1}REDACTED_USER:REDACTED_PW@",
+		},
+		{
+			pattern: regexp.MustCompile(`(NickServ IDENTIFY )([\p{L}0-9!#%&*+/:;<=>?@^_` + "`" + `{|}~]+)`),
+			repl:    "${1}REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(`(AUTHENTICATE )([\p{L}0-9!#%&*+/:;<=>?@^_` + "`" + `{|}~]+)`),
+			repl:    "${1}REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(
+				`(?m)(` +
+					`(?:Voyager autobot\s+\w+|Satsuki enter #announce\s+\w+|Sauron bot #ant-announce\s+\w+|Millie announce|DBBot announce|PT-BOT invite|midgards announce|HeBoT !invite|NBOT !invite|PS-Info pass|Synd1c4t3 invite|UHDBot invite|ENDOR !invite(\s+)\w+|immortal invite(\s+)\w+|Muffit bot #nbl-announce\s+\w+|hermes enter #announce\s+\w+|Drone enter #red-announce\s+\w+|RevoTT !invite\s+\w+|erica letmeinannounce\s+\w+|Cerberus identify\s+\w+)` +
+					`)(?:\s+[a-zA-Z0-9]+)`),
+			repl: "$1 REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(`(LiMEY_ !invite\s+)([a-zA-Z0-9]+)(\s+\w+)`),
+			repl:    "${1}REDACTED${3}",
+		},
+		{
+			pattern: regexp.MustCompile(`(Vertigo ENTER #GGn-Announce\s+)(\w+).([a-zA-Z0-9]+)`),
+			repl:    "$1$2 REDACTED",
+		},
+		{
+			pattern: regexp.MustCompile(`(Hummingbird ENTER\s+\w+).([a-zA-Z0-9]+)(\s+#ptp-announce-dev)`),
+			repl:    "$1 REDACTED$3",
+		},
+		{
+			pattern: regexp.MustCompile(`(SceneHD..invite).([a-zA-Z0-9]+)(\s+#announce)`),
+			repl:    "$1 REDACTED$3",
+		},
+	}
+)
+
+func SanitizeLogFile(filePath string, output io.Writer) error {
+	inFile, err := os.Open(filePath)
+	if err != nil {
+		return err
+	}
+	defer inFile.Close()
+
+	reader := bufio.NewReader(inFile)
+	writer := bufio.NewWriter(output)
+	defer writer.Flush()
+
+	for {
+		// Read the next line from the file
+		line, err := reader.ReadString('\n')
+
+		if err != nil {
+			if err != io.EOF {
+				log.Error().Msgf("Error reading line from input file: %v", err)
+			}
+			break
+		}
+
+		// Sanitize the line using regexReplacements array
+		bIRC := strings.Contains(line, `"module":"irc"`)
+		bFilter := (strings.Contains(line, `"module":"feed"`) ||
+			strings.Contains(line, `"module":"filter"`)) ||
+			strings.Contains(line, `"repo":"release"`) ||
+			strings.Contains(line, `"module":"action"`)
+
+		for i := 0; i < len(regexReplacements); i++ {
+			// Apply the first three patterns only if the line contains "module":"feed",
+			// "module":"filter", "repo":"release", or "module":"action"
+			if i < 4 {
+				if bFilter {
+					line = regexReplacements[i].pattern.ReplaceAllString(line, regexReplacements[i].repl)
+				}
+			} else if bIRC {
+				// Check for "module":"irc" before applying other patterns
+				line = regexReplacements[i].pattern.ReplaceAllString(line, regexReplacements[i].repl)
+			}
+		}
+
+		// Write the sanitized line to the writer
+		if _, err = writer.WriteString(line); err != nil {
+			log.Error().Msgf("Error writing line to output: %v", err)
+			return err
+		}
+	}
+
+	return nil
+}