added springer downloaders

articledownloader/articledownloader.py

@@ -90,7 +90,7 @@ def get_pdf_from_doi(self, doi, writefile, mode):
     :param writefile: file object to write to 
     :type writefile: file 
 
-    :param mode: either 'crossref' or 'elsevier', depending on how we wish to access the file 
+    :param mode: either 'crossref' | 'elsevier' | 'rsc' | 'springer', depending on how we wish to access the file 
     :type mode: str 
 
     :returns: True on successful write, False otherwise
@@ -155,6 +155,21 @@ def get_pdf_from_doi(self, doi, writefile, mode):
 
       return False
 
+    if mode == 'springer':
+      base_url = 'http://link.springer.com/'
+      api_url = base_url + doi + '.pdf'
+
+      try:
+        self.headers['Accept'] = 'application/pdf'
+        r = requests.get(api_url, stream=True, headers=self.headers)
+        if r.status_code == 200:
+          for chunk in r.iter_content(2048):
+            writefile.write(chunk)
+            return True
+      except:
+        return False
+      return False
+
   @traced
   def get_abstract_from_doi(self, doi, mode):
     '''