[jira] [Created] (CB-5960) File API mishandles relative URLs that traverse directories above the FS root

[Ian Clelland (JIRA)]

Ian Clelland created CB-5960:
--------------------------------

             Summary: File API mishandles relative URLs that traverse 
directories above the FS root
                 Key: CB-5960
                 URL: https://issues.apache.org/jira/browse/CB-5960
             Project: Apache Cordova
          Issue Type: Bug
            Reporter: Ian Clelland


Filesystem URLs should not be able to use ".." path components to reach outside 
of their sandbox. From the File API, ".." relative to a path resolves to the 
paths parent directory, and the parent directory of the filesystem root is 
itself.

So, if {{root}} is a DirectoryEntry representing the root of a filesystem, then

{code}
root.getFile("../file.txt", ...);
{code}

and

{code}
root.getFile("/file.txt", ...);
{code}

should resolve to the same file.

{code}
root.getDirectory("subdir_a/subdir_b", function(entry) {
    entry.getFile("../file.txt", ...);
}, ...);
{code}

should resolve to "/subdir_a/file.txt"




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