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https://github.com/telkomdev/go-filesig
validate Files by reading each magic number from a file for Go
https://github.com/telkomdev/go-filesig
file-validation go golang
Last synced: about 1 month ago
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validate Files by reading each magic number from a file for Go
- Host: GitHub
- URL: https://github.com/telkomdev/go-filesig
- Owner: telkomdev
- License: mit
- Created: 2022-07-14T10:44:23.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2023-10-15T13:46:25.000Z (about 1 year ago)
- Last Synced: 2024-06-19T17:46:48.958Z (6 months ago)
- Topics: file-validation, go, golang
- Language: Go
- Homepage:
- Size: 24.4 KB
- Stars: 2
- Watchers: 1
- Forks: 4
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
### Go File Signature Validator
small library to validate Files by reading each magic number from a file
[](https://pkg.go.dev/github.com/telkomdev/go-filesig)
[](https://github.com/telkomdev/go-filesig/actions/workflows/ci.yml)
#### Install
```shell
$ go get github.com/telkomdev/go-filesig
```
#### Usage
Simple
```go
package main
import (
"fmt"
"github.com/telkomdev/go-filesig"
"os"
)
func main() {
args := os.Args
if len(args) < 2 {
fmt.Println("required input file")
os.Exit(1)
}
inputFileArg := args[1]
inFile, err := os.Open(inputFileArg)
if err != nil {
fmt.Println("error open input file ", err)
os.Exit(1)
}
defer func() { inFile.Close() }()
valid := filesig.Is3gp(inFile)
fmt.Println(valid)
```
One Of
```go
package main
import (
"fmt"
"github.com/telkomdev/go-filesig"
"os"
)
func main() {
args := os.Args
if len(args) < 2 {
fmt.Println("required input file")
os.Exit(1)
}
inputFileArg := args[1]
inFile, err := os.Open(inputFileArg)
if err != nil {
fmt.Println("error open input file ", err)
os.Exit(1)
}
defer func() { inFile.Close() }()
valid := filesig.IsOneOf(inFile, filesig.Is3gp, filesig.IsPng, filesig.IsJpeg)
fmt.Println(valid)
}
```
HTTP Form File
```go
package main
import (
"fmt"
"github.com/telkomdev/go-filesig"
"net/http"
)
func uploadFile(w http.ResponseWriter, r *http.Request) {
fmt.Println("File Upload Endpoint Hit")
// Parse our multipart form, 10 << 20 specifies a maximum
// upload of 10 MB files.
r.ParseMultipartForm(10 << 20)
// FormFile returns the first file for the given key `myFile`
// it also returns the FileHeader so we can get the Filename,
// the Header and the size of the file
file, handler, err := r.FormFile("myFile")
if err != nil {
fmt.Println("Error Retrieving the File")
fmt.Println(err)
return
}
defer file.Close()
fmt.Printf("Uploaded File: %+v\n", handler.Filename)
fmt.Printf("File Size: %+v\n", handler.Size)
fmt.Printf("MIME Header: %+v\n", handler.Header)
// validate file
validPdf := filesig.IsPdf(file)
if !validPdf {
fmt.Print("file is not valid PDF file \n")
}
// return that we have successfully uploaded our file!
fmt.Fprintf(w, "Successfully Uploaded File\n")
}
func setupRoutes() {
http.HandleFunc("/upload", uploadFile)
http.ListenAndServe(":8000", nil)
}
func main() {
fmt.Println("Hello World")
setupRoutes()
}
```