Inline File Validation with Lua Script

For general information about inline file validation, see Overview of Inline File Validation

The administrator defines a base-64 encoded Lua action script and a path to that script in the UI or in the <transfer> section of aspera.conf.

During the inline validation process, ascp automatically generates a request; the parameters for the Lua call are passed to a Lua script defined in aspera.conf.

The returned value from Lua indicates validation success or failure:

Validation success - No return value
Validation failure - Returns a failure description string

Lua Logging Facility

The Lua harness provides string access to the various ascp log interfaces (simple text string only; format strings are not supported).

The following ascp logging functions are supported:

as_err
as_log
as_dbg1
as_dbg2
as_dbg3
as_dbg4

To invoke the function, substitute lua for as in the code; for example, you could enter the following line in a Lua script for as_log:

lua_log("This was a successful transfer")

This would result in the following log entry:

xxxxxx LOG lua: This was a successful transfer