TYPO3 Core

Quoting of the path and filename of the ImageMagick/GraphicsMagick executable has been introduced with 4.4.5. Here is an example:

4.4.4:
C:\Programme\GraphicsMagick-1.3.7-Q8/gm.exe convert -geometry 50x50! "uploads/pics/myimage.gif[0]" "typo3temp/pics/f58c0b5193.gif"

4.4.5:
"C:/Programme/GraphicsMagick-1.3.7-Q8/gm.exe" convert +profile '*' -geometry 50x50! "uploads/pics/myimage.gif"[0] "typo3temp/pics/f58c0b5193.gif"

Both of these commands will work, if executed directly on the Windows command line. But the 4.4.5 version will fail when executed through the PHP exec() command on Windows <b>with PHP versions below 5.3</b>.
For the exec() command of PHP >=5.3 both commands will work nicely.

<b>Explanation for PHP < 5.3:</b>
The quoting of the IM/GM executable path and filename in the complete command line requires the whole string to be quoted a second time, to make it work with exec() on Windows. Details can be found in the posting of "luko post cz", 30-Jan-2008 02:15, on http://php.net/manual/en/ref.exec.php

The working version for 4.4.5 must look like this:

""C:/Programme/GraphicsMagick-1.3.7-Q8/gm.exe" convert +profile '*' -geometry 50x50! "uploads/pics/myimage.gif"[0] "typo3temp/pics/f58c0b5193.gif""

<b>Explanation for PHP >=5.3:</b>
The PHP 5.3.0 change log (http://php.net/ChangeLog-5.php) contains a hint that the exec() behavior has been changed:

Version 5.3.0
30-June-2009
...
Fixed exec() on Windows to not eat the first and last double quotes. (Scott)

<b>Bottom line</b>
Quoting twice is the way to go on Windows, but is needed and working only for PHP versions below 5.3 on Windows. For PHP >=5.3 this is NOT needed and actually results in an error!

The attached patches for TYPO3 4.4.5 and TYPO3 4.5.0 will correct the problem with all PHP 5 versions on Windows.

(issue imported from #M17447)