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RRNF5's avatar
RRNF5
Icon for Nimbostratus rankNimbostratus
Sep 12, 2017

Identify large download (Content-Length header) and manually disable ASM

I would like to an irule to identify large download, >50MB (Content-Length header) and manually disable ASM.

 

Any instructions would be much appreciated.

 

ASM Advanced WAF
iRules
security

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  • RRNF5's avatar
    RRNF5
    Icon for Nimbostratus rankNimbostratus
    Sep 13, 2017

    when HTTP_RESPONSE { 

     Check if response content-length is greater than 52428800 (max_filtered_html_length) 

if {([HTTP::header "content-length"] > 52428800) } {  

 Disable ASM Processing 
ASM::disable
     If below the content-length threshold, enable ASM processing
} else {
ASM::enable /Common/ASMPOLICYNAME