Upgraded FFmpeg implementation

[^] README.md | for transcoding information
[-] exploits.go | removed skipArg completely as it's not needed at all
[^] exploits.go | changed mode handler because I made a mistake which  makes v the zero duration video mode
[^] .gitignore | added .jpg
[^] transcode-to-webm.go => transcode.go | fixed FFmpeg output and made it print the temporary file location
[^] name.go | made file name longer and changed Unix to UnixNano because the seed as Unix sometimes creates two identical file names when images are transcoded as it is really fast
[^] help.go | changed "doesn't" to "don't"
[^] ffmpeg-check.go | changed error checking function to the one already present in modules/error.go

.gitignore

@@ -30,3 +30,5 @@ discord-exploits-linux-64bit
 *.mp4
 
 *.jpeg
+
+*.jpg

README.md

@@ -1,13 +1,9 @@
-<p align="center">
-
 [![GitHub stars](https://img.shields.io/github/stars/Schmenn/discord-exploits?color=FFFFFF&label=stars&style=flat-square)](https://github.com/Schmenn/discord-exploits/stargazers)
 ![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/Schmenn/discord-exploits?color=FFFFFF&style=flat-square) 
 ![GitHub issues](https://img.shields.io/github/issues/Schmenn/discord-exploits?color=FFFFFF&style=flat-square)
 [![GitHub forks](https://img.shields.io/github/forks/Schmenn/discord-exploits?color=FFFFFF&style=flat-square)](https://github.com/Schmenn/discord-exploits/network)
 ![Made with](https://img.shields.io/badge/made%20with-Go-29BEB0?style=flat-square)
 
-</p>
-
 # Discord-Exploits
 A program for creating exploited media files for discord written in Go.
 
@@ -33,9 +29,11 @@ the mode `v` stands for virus image
 The Program only supports `webm` files for video and `png` files for images
 
 ##### The file will be saved with a random file name in the directory in which you ran the command
-##### You can use [ffmpeg](https://ffmpeg.org) to convert a video to .webm or to convert an image to png (better than online converters)
-##### The image may get flagged by windows defender and will get removed. to restore the file, go to Settings > Update & Security > Windows Security > Virus & Threat protection and restore the file
+##### You can use [FFmpeg](https://ffmpeg.org) to convert a video to .webm or to convert an image to png (better than online converters)
+##### The "virus" image may get flagged by windows defender and will get removed. to restore the file, go to Settings > Update & Security > Windows Security > Virus & Threat protection and restore the file
 
+### Other file formats 
+If you want to run this program with other file types like `mp4` and `jpg` directly, make sure you have FFmpeg installed and on your path as the program uses it to transcode the file in those cases.
 
 ## Installation
 ### Via releases
@@ -61,7 +59,7 @@ linux-32-bit`
 
     `cd discord-exploits`
 
-3. Compile it
+3. Build it
 
     `go build`
 
@@ -73,6 +71,7 @@ linux-32-bit`
 * Feature for creating a video that, when played on discord, will look like it has got a huge negative duration
 * Feature for creating a video that, when played on discord, will look like it has got a constant duration of 0
 * Feature for creating an image then triggers other users' windows defender after being cached
+* Transcoding from `mp4` to `webm` and from `jpeg` and `jpg` to `png` ([requires FFmpeg](https://github.com/Schmenn/discord-exploits#other-file-formats))
 
 ### Upcoming Features are:
 not yet decided.

exploits.go

@@ -12,13 +12,11 @@ var (
 	quiet     bool   = false
 	inputFile string = "no input file provided"
 	mode      string = "no mode specified"
-	//skipArg   int    = 0
 )
 
 func main() {
 	args := os.Args[1:]
 	handleArgs(args, &quiet)
-	//fmt.Println(quiet)
 	if !quiet {
 		modules.Welcome()
 	}
@@ -32,24 +30,18 @@ func main() {
 
 func handleArgs(args []string, quiet *bool) {
 
-	/*if skipArg > 0 {
-		skipArg = skipArg - 1
-		return
-	}*/
 	for i, s := range args {
 		switch s {
-		// quiet
+		// Quiet
 		case "-q", "--quiet":
 			*quiet = true
 
 		// Input File
 		case "-i":
-			//skipArg++
 			inputFile = args[i+1]
 
 		// Mode Selection
 		case "-m":
-			//skipArg++
 			mode = args[i+1]
 
 		// Help Message
@@ -118,7 +110,7 @@ func initCommand(inputFile string, mode string) {
 			fmt.Println("editing video.")
 			exploits.RunNegativeVideoTask(inputFile)
 			fmt.Println("completed task.")
-		case "0", "v":
+		case "0", "z":
 			fmt.Println("editing video.")
 			exploits.RunZeroVideoTask(inputFile)
 			fmt.Println("completed task.")
@@ -147,7 +139,7 @@ func initCommand(inputFile string, mode string) {
 			fmt.Println("completed task.")
 			os.Remove(out)
 
-		case "0", "v":
+		case "0", "z":
 			fmt.Println("transcoding video from mp4 to webm")
 			out := modules.Transcode(inputFile, "webm")
 			fmt.Println("finished transcoding video from mp4 to webm")
@@ -160,11 +152,12 @@ func initCommand(inputFile string, mode string) {
 			fmt.Println("the mode doesn't match the file")
 		}
 
-	} else if strings.HasSuffix(inputFile, "png") {
+	} else if strings.HasSuffix(inputFile, ".png") {
 		fmt.Println("editing photo.")
 		exploits.RunVirusImageTask(inputFile)
 		fmt.Println("completed task.")
-	} else if strings.HasSuffix(inputFile, "jpg") {
+
+	} else if strings.HasSuffix(inputFile, ".jpg") {
 		fmt.Println("transcoding image from jpg to png")
 		out := modules.Transcode(inputFile, "png")
 		fmt.Println("finished transcoding image from jpg to png")
@@ -172,7 +165,11 @@ func initCommand(inputFile string, mode string) {
 		exploits.RunVirusImageTask(out)
 		fmt.Println("completed task.")
 		os.Remove(out)
-	} else if strings.HasSuffix(inputFile, "jpeg") {
+
+	} else if strings.HasSuffix(inputFile, ".jpeg") {
+		if strings.ToLower(mode) != "v" || strings.ToLower(mode) ==  "no mode specified"{
+			fmt.Println("the mode is not compatible with the image, proceeding to run the virus image task anyway")
+		}
 		fmt.Println("transcoding image from jpeg to png")
 		out := modules.Transcode(inputFile, "png")
 		fmt.Println("finished transcoding image from jpeg to png")
@@ -180,5 +177,9 @@ func initCommand(inputFile string, mode string) {
 		exploits.RunVirusImageTask(out)
 		fmt.Println("completed task.")
 		os.Remove(out)
+	} else {
+		if inputFile == "no input file provided" {
+			return
+		}
 	}
 }

modules/ffmpeg-check.go

@@ -8,9 +8,7 @@ import (
 func CheckForFFmpeg() string {
 	path, err := exec.LookPath("ffmpeg")
 
-	if err != nil {
-		panic(err)
-	}
+	Check(err)
 
 	return path
 }

modules/help.go

@@ -9,7 +9,7 @@ func Help(progName string) {
 	fmt.Println("Discord-Exploits Help")
 	fmt.Println("  Usage: " + progName + " -i <input file> -m <mode> [-q]")
 	fmt.Println("")
-	fmt.Println("--quiet -q   doesn't show welcome screen")
+	fmt.Println("--quiet -q   don't show welcome screen")
 	fmt.Println("-i <file>    provide input file")
 	fmt.Println("-m <mode>    specify mode")
 	fmt.Println("")

modules/name.go

@@ -8,8 +8,8 @@ import (
 // CreateName generates a random file name
 func CreateName(extension string) string {
 	charset := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
-	b := make([]byte, 6)
-	rand.Seed(time.Now().Unix())
+	b := make([]byte, 8)
+	rand.Seed(time.Now().UnixNano())
 	for i := range b {
 		b[i] = charset[rand.Intn(len(charset))]
 	}

modules/transcode-to-webm.go

@@ -1,16 +0,0 @@
-package modules
-
-import(
-	"os/exec"
-)
-
-//Transcode transcodes video to webm
-func Transcode (input string, to string) string {
-	path := CheckForFFmpeg()
-	output := CreateName(to)
-
-	cmd := exec.Command(path, "-i", input, output)
-	err := cmd.Run()
-	Check(err)
-	return output
-}

modules/transcode.go

@@ -0,0 +1,22 @@
+package modules
+
+import (
+	"fmt"
+	"os/exec"
+)
+
+//Transcode transcodes videos and images
+func Transcode(input string, to string) string {
+	path := CheckForFFmpeg()
+	output := CreateName(to)
+
+	out, err := exec.Command(path, "-i", input, output).CombinedOutput()
+
+	Check(err)
+
+	fmt.Println("temporarily saving transcoded file to " + output)
+
+	fmt.Println(string(out))
+
+	return output
+}