Read all of the data in a user file and return it as a block of text. Optionally can access an entry within a zip file. Only suitable for reading text files.
The service runs without authority; if a user knows the storage key they are presumed to have authority to read the file.
<storageKey/> <entry/> </ReadUserFile>
If entry is passed, the file is presumed to be a zip file, and text from the named entry is returned.
102 - Not found, which includes storage key not found, file missing for storage key, entry not found, and reading a normal file as a zip file.
103 - Parameter error