Merge pull request #136 from eggplants/429_error

Add TooManyRequestsError

waybackpy/exceptions.py

@@ -8,14 +8,13 @@ This module contains the set of Waybackpy's exceptions.
 class WaybackError(Exception):
     """
     Raised when Waybackpy can not return what you asked for.
-     1) Wayback Machine API Service is unreachable/down.
-     2) You passed illegal arguments.
 
-     All other exceptions are inherited from this class.
+    1) Wayback Machine API Service is unreachable/down.
+    2) You passed illegal arguments.
+
+    All other exceptions are inherited from this class.
     """
 
-    pass
-
 
 class RedirectSaveError(WaybackError):
     """
@@ -23,15 +22,18 @@ class RedirectSaveError(WaybackError):
     redirect URL is archived but not the original URL.
     """
 
-    pass
-
 
 class URLError(Exception):
     """
     Raised when malformed URLs are passed as arguments.
     """
 
-    pass
+
+class TooManyRequestsError(WaybackError):
+    """
+    Raised when you make more than 15 requests per
+    minute and the Wayback Machine returns 429.
+    """
 
 
 class MaximumRetriesExceeded(WaybackError):
@@ -39,28 +41,20 @@ class MaximumRetriesExceeded(WaybackError):
     MaximumRetriesExceeded
     """
 
-    pass
-
 
 class MaximumSaveRetriesExceeded(MaximumRetriesExceeded):
     """
     MaximumSaveRetriesExceeded
     """
 
-    pass
-
 
 class ArchiveNotInAvailabilityAPIResponse(WaybackError):
     """
     Could not parse the archive in the JSON response of the availability API.
     """
 
-    pass
-
 
 class InvalidJSONInAvailabilityAPIResponse(WaybackError):
     """
     availability api returned invalid JSON
     """
-
-    pass

waybackpy/save_api.py

@@ -8,7 +8,7 @@ from requests.adapters import HTTPAdapter
 from requests.structures import CaseInsensitiveDict
 from urllib3.util.retry import Retry
 
-from .exceptions import MaximumSaveRetriesExceeded
+from .exceptions import MaximumSaveRetriesExceeded, TooManyRequestsError
 from .utils import DEFAULT_USER_AGENT
 
 
@@ -79,6 +79,12 @@ class WaybackMachineSaveAPI(object):
         self.status_code = self.response.status_code
         self.response_url = self.response.url
         session.close()
+        if self.status_code == 429:
+            raise TooManyRequestsError(
+                "Seem to be refused to request by the server. "
+                "Save Page Now receives up to 15 URLs per minutes. "
+                "Wait a moment and run again."
+            )
 
     def archive_url_parser(self) -> Optional[str]:
         """
@@ -102,13 +108,11 @@ class WaybackMachineSaveAPI(object):
         if match is not None and len(match.groups()) == 1:
             return "https" + match.group(1)
 
-        if self.response_url:
-            self.response_url = self.response_url.strip()
-            if "web.archive.org/web" in self.response_url:
-                regex = r"web\.archive\.org/web/(?:[0-9]*?)/(?:.*)$"
-                match = re.search(regex, self.response_url)
-                if match:
-                    return "https://" + match.group(0)
+        self.response_url = self.response_url.strip()
+        regex4 = r"web\.archive\.org/web/(?:[0-9]*?)/(?:.*)$"
+        match = re.search(regex4, self.response_url)
+        if match is not None:
+            return "https://" + match.group(0)
 
         return None