Added md5decrypt API hash lookups.

Author: awgh

marvin/handlers.go

@@ -199,8 +199,8 @@ func handlePrivMsg(conn *irc.Conn, line *irc.Line, config *MarvinConfig, db *sql
 				sendFn("fine, I will relay your message... here I am, brain the size of a planet...")
 			}
 			break
-                case ".awgh":
-                        fallthrough
+		case ".awgh":
+			fallthrough
 		case ".m":
 			if markovChains != nil && markovChains[0] != nil {
 				sendFn(markovChains[0].Generate(23))
@@ -209,6 +209,17 @@ func handlePrivMsg(conn *irc.Conn, line *irc.Line, config *MarvinConfig, db *sql
 			}
 			break
 
+		case ".md5", ".md4", ".sha1", ".sha256", ".sha384", ".sha512", ".ntlm":
+			hash := args[1]
+			hashType := args[0][1:]
+			result, err := RemoteHashLookup(hash, hashType, config.MD5ApiUser, config.MD5ApiCode)
+			if err == nil {
+				sendFn(result)
+			} else {
+				sendFn(err.Error())
+			}
+			break
+
 		default: // The Wormhole Case : forward public messages across servers
 			for i := range ircClients {
 				if ircClients[i] != conn {

marvin/main.go

@@ -38,6 +38,9 @@ type MarvinConfig struct {
 	SASL         bool
 	Proxy        string
 	Channel      string
+
+	MD5ApiUser string
+	MD5ApiCode string
 }
 
 // Message - Contains an answering machine message

marvin/md5decrypt.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"errors"
+	"io/ioutil"
+	"net/http"
+	"strings"
+)
+
+// ValidateHexString - returns true iff all chars in string are valid hex chars
+func ValidateHexString(hex string) bool {
+	for _, c := range hex {
+		if !strings.Contains("0123456789abcdefABCDEF", string(c)) {
+			return false
+		}
+	}
+	return true
+}
+
+// ValidateHashType - returns true iff hashType argument is a supported type
+func ValidateHashType(hashType string) bool {
+	switch hashType {
+	case "md5", "md4", "sha1", "sha256", "sha384", "sha512", "ntlm":
+		return true
+	}
+	return false
+}
+
+// RemoteHashLookup - Looks up given hash in the md5decrypt online service
+func RemoteHashLookup(hash, hashType, email, code string) (string, error) {
+
+	if !ValidateHashType(hashType) {
+		return "", errors.New("Invalid Hash Type")
+	}
+
+	if !ValidateHexString(hash) {
+		return "", errors.New("Invalid Hash String")
+	}
+
+	if len(code) < 1 || len(email) < 1 {
+		return "", errors.New("md5decrypt API not configured")
+	}
+
+	queryString := "https://md5decrypt.net/en/Api/api.php?hash=" + hash +
+		"&hash_type=" + hashType + "&email=" + email + "&code=" + code
+
+	resp, err := http.Get(queryString)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+
+	return string(body), err
+}