remove the hardcoded download

ipfs

@@ -23,7 +23,6 @@
 import hashlib
 import os
 import sys
-import tempfile
 
 import ipfsapi
 
@@ -63,11 +62,13 @@ class IPFS_method():
             if message is None:
                 return 0
             if message['number'] == 600:
+                uri = message['URI'][0]
+                filename = message['Filename'][0]
                 try:
-                    self.fetch(message)
+                    self.fetch(uri, filename)
                 except Exception as e:
                     self.send_uri_failure({
-                        'URI': self.uri,
+                        'URI': uri,
                         'Message': e.__class__.__name__ + ": " + str(e)})
             else:
                 return 100
@@ -104,18 +105,14 @@ class IPFS_method():
             result[item].append(value.strip())
         return result
 
-    def fetch(self, message):
-        self.uri = message['URI'][0]
-        self.filename = message['Filename'][0]
+    def fetch(self, uri, filename):
+        ipfs_file_path = uri.replace('ipfs://', '', 1)
 
-        self.send_status({'URI': self.uri, 'Message': 'Waiting for stats'})
+        self.send_status({'URI': uri, 'Message': 'Waiting for stats'})
         ipfs = ipfsapi.connect('127.0.0.1', 5001)
-        inrelease = (
-            'QmabnVr8k4uFdwQ8dW2P3jEUxdVPF8FcAgc2i8q7T2ArMg/'
-            'dists/xenial/InRelease')
-        stat = ipfs.object_stat(inrelease)
+        stat = ipfs.object_stat(ipfs_file_path)
         self.send_uri_start({
-            'URI': self.uri,
+            'URI': uri,
             # FIXME We can't get the real size without downloading the file.
             # https://github.com/ipfs/go-ipfs/issues/2071
             # --elopio - 20171203
@@ -123,30 +120,26 @@ class IPFS_method():
 
         # XXX IPFS downloads the file to the current directory.
         # --elopio - 20171203
-        tmp_dir = tempfile.gettempdir()
-        os.chdir(tmp_dir)
-        fetched_file_path = os.path.join(
-            tmp_dir, os.path.basename(inrelease))
         cwd = os.getcwd()
+        os.chdir(os.path.dirname(filename))
         try:
-            ipfs.get(inrelease)
+            ipfs.get(ipfs_file_path)
         finally:
             os.chdir(cwd)
-        os.rename(fetched_file_path, self.filename)
 
         hash_md5 = hashlib.md5()
         hash_sha256 = hashlib.sha256()
         hash_sha512 = hashlib.sha512()
-        with open(self.filename, 'rb') as fetched_file:
+        with open(filename, 'rb') as fetched_file:
             for chunk in iter(lambda: fetched_file.read(4096), b''):
                 hash_md5.update(chunk)
                 hash_sha256.update(chunk)
                 hash_sha512.update(chunk)
 
         self.send_uri_done({
-            'URI': self.uri,
-            'Filename': self.filename,
-            'Size': os.stat(self.filename).st_size,
+            'URI': uri,
+            'Filename': filename,
+            'Size': os.stat(filename).st_size,
             'MD5-Hash': hash_md5.hexdigest(),
             'MD5Sum-Hash': hash_md5.hexdigest(),
             'SHA256-Hash': hash_sha256.hexdigest(),