func init() {
var err error
mm, err = magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_ERROR | magicmime.MAGIC_SYMLINK)
if err != nil {
panic(err)
}
RegisterExtractor("", &defaultExtractor{})
}
func processPath(path string, info os.FileInfo, err error) error {
//buffer to build string
var buffer bytes.Buffer
//file properties
stat, err := os.Stat(path)
if err != nil {
log.Printf("Unable to stat %s: %s", path, err)
}
//permissions
perms := stat.Mode()
buffer.WriteString(fmt.Sprintf("%s ", perms))
//size
size := stat.Size()
buffer.WriteString(fmt.Sprintf("%d ", size))
//uid/gid
uid := info.Sys().(*syscall.Stat_t).Uid
gid := info.Sys().(*syscall.Stat_t).Gid
user := getUserFromUid(int(uid))
group := getGroupFromGid(int(gid))
buffer.WriteString(fmt.Sprintf("%s ", user))
buffer.WriteString(fmt.Sprintf("%s ", group))
if stat.IsDir() {
//directory
buffer.WriteString(fmt.Sprintf("%s", path))
} else {
//mimetype detection
mm, err := magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_SYMLINK | magicmime.MAGIC_ERROR)
if err != nil {
log.Panicf("Problem evaluating libmagic detection: %s", err)
}
mimetype, err := mm.TypeByFile(path)
if err != nil {
log.Printf("Unable to determine file mimetype: %s", err)
return nil
}
//read file content
contents, err := ioutil.ReadFile(path)
if err != nil {
log.Printf("Unable to read %s: %s", path, err)
}
//process
data := []byte(contents)
if mimetype != "application/octet-stream" {
//standard file
buffer.WriteString(fmt.Sprintf("%s md5=%x", path, md5.Sum(data)))
} else {
//binary file
//computing the md5sum for a binary file is irrelevant, as there might
//be different pre-linking between machines, hence different sum for
//the same binary
buffer.WriteString(fmt.Sprintf("%s", path))
}
}
fmt.Println(buffer.String())
return nil
}
func RefreshBuilds() {
log.Println("Processing files...")
// Remove any missing files from the DB
PruneMissingFiles()
// Check for files in build directory that match zip MIME
mm, _ := magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_SYMLINK | magicmime.MAGIC_ERROR)
files, _ := ioutil.ReadDir(BuildsPath)
for _, f := range files {
filepath := strings.Join([]string{BuildsPath, f.Name()}, "/")
mimetype, _ := mm.TypeByFile(filepath)
if mimetype == "application/java-archive" {
existingFile, err := FindFileByName(f.Name())
if err != nil {
// Extract build props from file in zip
props := BuildPropsFromZip(filepath)
// Generate file struct using properties
file := File{
Name: f.Name(),
Size: f.Size(),
Md5: Md5File(filepath),
BuildDate: props["ro.build.date.utc"],
ApiLevel: props["ro.build.version.sdk"],
Incremental: props["ro.build.version.incremental"],
Device: props["ro.product.name"],
User: props["ro.build.user"],
Published: false,
}
// Insert file in database
CreateFile(file)
} else {
// Insert file in database
existingFile.Published = false
UpdateFile(existingFile)
log.Println("Refresh Builds: File exists, skipping")
}
} else {
log.Println("Refresh Builds: File skipped invalid MIME", mimetype)
}
}
// Update db published flag for files in published folder
publishedPath := strings.Join([]string{BuildsPath, "published"}, "/")
publishedFiles, _ := ioutil.ReadDir(publishedPath)
for _, f := range publishedFiles {
file, _ := FindFileByName(f.Name())
file.Published = true
UpdateFile(file)
}
}
// getMimeType returns the file mime type.
func getMimeType(file string) string {
mm, err := magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_SYMLINK | magicmime.MAGIC_ERROR)
if err != nil {
numErrors++
return DefaultMimeType
}
mimetype, err := mm.TypeByFile(file)
if err != nil {
numErrors++
return DefaultMimeType
}
return mimetype
}
func Example_1() {
mm, err := magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_SYMLINK | magicmime.MAGIC_ERROR)
if err != nil {
panic(err)
}
filepath := "/bin/ls"
mimetype, err := mm.TypeByFile(filepath)
if err != nil {
fmt.Printf("Something went wrong: %s", err)
return
}
fmt.Printf("%s -> %s\n", filepath, mimetype)
}
func InitMagic() error {
var err error
Magic, err = magicmime.New(magicmime.MAGIC_MIME_TYPE | magicmime.MAGIC_SYMLINK | magicmime.MAGIC_ERROR)
return err
}
