4d-plugin-hash

Compute checksum of a file

###Platform

carbon	cocoa	win32	win64
🆗	🆗	🆗	🆗

###Version

###Supported hash algorithms

Checksum MD5 0
Checksum SHA1 1
Checksum SHA256 2
Checksum SHA384 3
Checksum SHA512 5

###Supported output formats

Checksum Format Hex 0
Checksum Format Base64 1

hash:=Generate checksum (path;type;format;method)

###Syntax

param	type	description
path	TEXT	full path in system format
type	INT32	hash algorithm
format	TEXT	output format
method	INT32	(optional) callback method
hash	TEXT	hash (empty if aborted)

###Syntax for callback method

param	type	description
$1	REAL	current read position
$2	REAL	total file size
$0	BOOL	True to abort

###Discussion

• OpenSSL is used internally.

• The callback method is called by its method ID. If a method name is passed, but a corresponding method is not found, EXECUTE METHOD is used internally. This can be useful, for example, if the callback method is a shared component method.

• The callback method is called in the process which called the plugin.

Example

PID:=Progress New 
Progress SET PROGRESS (PID;-1)
Progress SET BUTTON ENABLED (PID;True)

$path:=System folder(Desktop)+"openssl-OpenSSL_1_1_0-stable.zip"

$callbackMethod:="PROGRESS"

$hash:=Generate checksum ($path;Checksum MD5;Checksum Format Base64;$callbackMethod)

Progress QUIT (PID)

If ($hash#"")

  ALERT($hash)

Else 

  ALERT("Aborted!")

End if