Accept a file-like object for writing the signature req file to (fix …

hellosign_sdk/hsclient.py

@@ -314,14 +314,16 @@ def get_signature_request_list(self, page=1, ux_version=None):
 
         return request.get(self.SIGNATURE_REQUEST_LIST_URL, parameters=parameters)
 
-    def get_signature_request_file(self, signature_request_id, filename, file_type=None):
+    def get_signature_request_file(self, signature_request_id, path_or_file=None, file_type=None, filename=None):
         ''' Download the PDF copy of the current documents
 
         Args:
 
             signature_request_id (str): Id of the signature request
 
-            filename (str):             Filename to save the PDF file to. This should be a full path.
+            path_or_file (str or file): A writable File-like object or a full path to save the PDF file to.
+
+            filename (str):             [DEPRECATED] Filename to save the PDF file to. This should be a full path.
 
             file_type (str):            Type of file to return. Either "pdf" for a single merged document or "zip" for a collection of individual documents. Defaults to "pdf" if not specified.
 
@@ -333,7 +335,7 @@ def get_signature_request_file(self, signature_request_id, filename, file_type=N
         url = self.SIGNATURE_REQUEST_DOWNLOAD_PDF_URL + signature_request_id
         if file_type:
             url += '?file_type=%s' % file_type
-        return request.get_file(url, filename)
+        return request.get_file(url, path_or_file or filename)
 
     def send_signature_request(self, test_mode=False, files=None, file_urls=None, title=None, subject=None, message=None, signing_redirect_url=None, signers=None, cc_email_addresses=None, form_fields_per_document=None, use_text_tags=False, hide_text_tags=False, metadata=None, ux_version=None):
         ''' Creates and sends a new SignatureRequest with the submitted documents

hellosign_sdk/tests/unit_tests/test_request.py

@@ -4,6 +4,7 @@
 from hellosign_sdk.utils import HSRequest, BadRequest
 import tempfile
 import os
+import StringIO
 
 #
 # The MIT License (MIT)
@@ -92,15 +93,21 @@ def test_get_file(self):
         f.close()
         response = request.get_file(url='http://httpbin.org/robots.txt',
                                     headers={'Custom-Header': 'Nothing'},
-                                    filename=temp_filename)
+                                    path_or_file=temp_filename)
         os.unlink(temp_filename)
         self.assertEquals(response, True)
 
         response = request.get_file(url='http://httpbin.org/robots.txt',
                                     headers={'Custom-Header': 'Nothing'},
-                                    filename='')
+                                    path_or_file='')
         self.assertEquals(response, False)
 
+        out = StringIO.StringIO()
+        response = request.get_file(url='http://httpbin.org/robots.txt',
+                                    headers={'Custom-Header': 'Nothing'},
+                                    path_or_file=out)
+        self.assertEquals(response, True)
+
     def test_get_file_https(self):
         request = HSRequest(self.client.auth)
         f = tempfile.NamedTemporaryFile(delete=True)
@@ -109,11 +116,17 @@ def test_get_file_https(self):
 
         response = request.get_file(url='https://httpbin.org/robots.txt',
                                     headers={'Custom-Header': 'Nothing'},
-                                    filename=temp_filename)
+                                    path_or_file=temp_filename)
         os.unlink(temp_filename)
         self.assertEquals(response, True)
 
         response = request.get_file(url='https://httpbin.org/robots.txt',
                                     headers={'Custom-Header': 'Nothing'},
-                                    filename='')
+                                    path_or_file='')
         self.assertEquals(response, False)
+
+        out = StringIO.StringIO()
+        response = request.get_file(url='http://httpbin.org/robots.txt',
+                                    headers={'Custom-Header': 'Nothing'},
+                                    path_or_file=out)
+        self.assertEquals(response, True)

hellosign_sdk/utils/request.py

@@ -47,7 +47,7 @@ class HSRequest(object):
 
     DEFAULT_ENCODING = "UTF-8"
     USER_AGENT = "hellosign-python-sdk"
-    
+
     parameters = None
     http_status_code = 0
     verify_ssl = True
@@ -66,13 +66,15 @@ def get_warnings(self):
         if self.warnings and len(self.warnings) > 0:
             return self.warnings
 
-    def get_file(self, url, filename, headers=None):
+    def get_file(self, url, path_or_file=None, headers=None, filename=None):
         ''' Get a file from a url and save it as `filename`
 
         Args:
             url (str): URL to send the request to
 
-            filename (str): File name to save the file as, this can be either
+            path_or_file (str or file): A writable File-like object or a path to save the file to.
+
+            filename (str): [DEPRECATED] File name to save the file as, this can be either
                 a full path or a relative path
 
             headers (str, optional): custom headers
@@ -82,6 +84,7 @@ def get_file(self, url, filename, headers=None):
             otherwise.
 
         '''
+        path_or_file = path_or_file or filename
 
         if self.debug:
             print("GET FILE: %s, headers=%s" % (url, headers))
@@ -91,17 +94,20 @@ def get_file(self, url, filename, headers=None):
             self.headers.update(headers)
 
         response = requests.get(url, headers=self.headers, auth=self.auth, verify=self.verify_ssl)
-        
+
         self.http_status_code = response.status_code
         try:
             # No need to check for warnings here
             self._check_error(response)
-            fd = os.open(filename, os.O_CREAT | os.O_RDWR)
-            with os.fdopen(fd, "w+b") as f:
-                f.write(response.content)
+            try:
+                path_or_file.write(response.content)
+            except AttributeError:
+                fd = os.open(path_or_file, os.O_CREAT | os.O_RDWR)
+                with os.fdopen(fd, "w+b") as f:
+                    f.write(response.content)
         except:
             return False
-        
+
         return True
 
     def get(self, url, headers=None, parameters=None, get_json=True):