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martin_58353's avatar
martin_58353
Icon for Cirrus rankCirrus
Sep 11, 2017

STREAM::expression with special characters

I need inject code into JavaScript returned from server some code: original code from server:   this.initNewTransfer(t, n),   replaced/injected code:   this.i...
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  • martin_58353's avatar
    martin_58353
    Sep 11, 2017

    I found correct strings for replacement:

     

    set find "initNewTransfer\\x28t, n\\)"
set replace "this.initNewTransfer\x28t, n\), INJECTED-CODE"

    Is there any better solution?

     

martin_58353's avatar
martin_58353
Icon for Cirrus rankCirrus

I found correct strings for replacement:

 

set find "initNewTransfer\\x28t, n\\)"
set replace "this.initNewTransfer\x28t, n\), INJECTED-CODE"

Is there any better solution?

 

cjunior's avatar
cjunior
Icon for Nacreous rankNacreous
Sep 11, 2017

I honestly don't know why the first parenthesis causes disruption for the logic. This way, sometimes I workaround using hexa chars like you did, and in some cases I just ignore that char using a dot. Plus, I prevent command substitution with {}:

 

set find {this\.initNewTransfer.t, n/),}
set replace "this.initNewTransfer(t, n), INJECTED-CODE,"

Just keep in mind the "find" is the regexp and "replace" a simple text.

 

Let's wait a expert tell us what's the issue.

 

Regards.