Merge pull request #2 from GGSN/master

Implement PDF support when not using AppEngine

geocamUtil/pdf.py

@@ -4,6 +4,8 @@
 # All Rights Reserved.
 # __END_LICENSE__
 
+import tempfile
+import os
 
 class PdfConversionError(Exception):
     pass
@@ -18,4 +20,26 @@ def convertPdf(data,
     Pass in the raw binary PDF data. Returns the raw binary image data
     result after rasterization.
     """
-    raise NotImplementedError()
+
+    #write to temporary pdf file
+    tempInputFile = tempfile.NamedTemporaryFile(suffix='.pdf', delete=False)
+    tempInputFile.seek(0)
+    tempInputFile.write(data)
+    tempInputFile.flush()
+
+    outputFileName = tempInputFile.name.replace('.pdf', '.png')
+
+    ret = os.system('convert -flatten %s %s > /dev/null' % (tempInputFile.name, outputFileName))
+
+    os.remove(tempInputFile.name)
+
+    if ret != 0 or os.path.isfile(outputFileName) == False:
+        raise PdfConversionError('Error found while converting pdf')
+
+    outputFile = open(outputFileName, 'r')
+    outputFileData = outputFile.read()
+
+    outputFile.close()
+    os.remove(outputFileName)
+
+    return outputFileData