[TYPO3-core] RFC #17483: GifBuilder - meaningfulTempFilePrefix can cause invalid image urls

[Stefan Galinski]

Hi,

This is a SVN patch request.

Type: Bugfix

BT reference: http://bugs.typo3.org/view.php?id=17483

Branches: trunk / 4_5

Problem:
Currently there are incorrect image urls if you use the 
meaningfulTempFilePrefix option and text with invalid url characters.

Solution:
Whitelist the allowed characters instead of managing a blacklist. There are 
not much allowed characters.

How To Test:
Use the following TS snippet to reproduce the issue.

config.meaningfulTempFilePrefix = 100

page = PAGE
page.10 = COA
page.10 {
  10 = IMAGE
  10 {
    file = GIFBUILDER
    file {
      XY = 200,30
      transparentBackground = 1
      format = png
      backColor = #000000
      
      15 = TEXT
      15 {
        text = täst/123$?&%-_.+!*
        fontColor = #FFFFFF
        fontSize = 24
        offset=0,24
      }
    }
  }
}

-- 
Stefan Galinski
staatl. geprüfter Informatiktechniker
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