feat: update instagram data source to get media instead of biography (#…

…122)

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## Description
<!-- Small description -->

This PR updates the Instagram data source to get media instead of
biography.

Depends-On: #117 

## Checklist
- [ ] Targeted PR against correct branch.
- [ ] Linked to Github issue with discussion and accepted design OR link
to spec that describes this work.
- [ ] Wrote unit tests.
- [ ] Updated the documentation. 
- [ ] Re-reviewed `Files changed` in the Github PR explorer.

data-sources/instagram.py

@@ -34,15 +34,15 @@ def __init__(self, address: str, pub_key: str, value: str, signature: str):
         self.value = value
 
 
-def get_urls_from_biography(user: str) -> [str]:
+def get_urls_from_caption(user: str) -> [str]:
     """
-    Returns all the URLs that are found inside the biography of the user having the given user username.
+    Returns all the URLs that are found inside the caption of the user having the given user username.
     :param user: Username of the Instagram user.
-    :return: List of URLs that are found inside the biography
+    :return: List of URLs that are found inside the caption
     """
-    url = f"{ENDPOINT}/users/{user}"
+    url = f"{ENDPOINT}/medias/{user}"
     result = requests.request("GET", url, headers=HEADERS).json()
-    return re.findall(r'(https?://[^\s]+)', result['biography'])
+    return re.findall(r'(https?://[^\s]+)', result['caption'])
 
 
 def get_signature_from_url(url: str) -> Optional[VerificationData]:
@@ -144,7 +144,7 @@ def main(args: str):
     :param args: JSON encoded parameters used during the execution.
     :return The signed value and the signature as a single comma separated string.
     :raise Exception if anything is wrong during the process. This can happen if:
-            1. The Instagram user has not started the connection using the Hephaestus bot
+            1. The Instagram user has not started the connection
             2. The provided signature is not valid
             3. The provided address is not linked to the provided public key
     """
@@ -153,10 +153,10 @@ def main(args: str):
     json_obj = json.loads(decoded)
     call_data = check_values(json_obj)
 
-    # Get the URLs to check from the user biography
-    urls = get_urls_from_biography(call_data.username)
+    # Get the URLs to check from the caption of the user media
+    urls = get_urls_from_caption(call_data.username)
     if len(urls) == 0:
-        raise Exception(f"No URL found inside {call_data.username} biography")
+        raise Exception(f"No URL found inside {call_data.username} media")
 
     # Find the signature following the URLs
     data = None
@@ -167,7 +167,7 @@ def main(args: str):
             break
 
     if data is None:
-        raise Exception(f"No valid signature data found inside {call_data.username} biography")
+        raise Exception(f"No valid signature data found inside {call_data.username} media")
 
     # Verify the signature
     signature_valid = verify_signature(data)

data-sources/instagram_test.py

@@ -8,16 +8,16 @@
 class TestInstagram(unittest.TestCase):
 
     @httpretty.activate(verbose=True, allow_net_connect=False)
-    def test_get_urls_from_biography(self):
+    def test_get_urls_from_caption(self):
         # Register fake HTTP call
         httpretty.register_uri(
             httpretty.GET,
-            "https://themis.mainnet.desmos.network/instagram/users/riccardomontagnin",
+            "https://themis.mainnet.desmos.network/instagram/medias/riccardomontagnin",
             status=200,
-            body='{"biography":"https://pastebin.com/raw/TgSpUCz6"}',
+            body='{"caption":"https://pastebin.com/raw/TgSpUCz6"}',
         )
 
-        url = instagram.get_urls_from_biography('riccardomontagnin')
+        url = instagram.get_urls_from_caption('riccardomontagnin')
         self.assertEqual(['https://pastebin.com/raw/TgSpUCz6'], url)
 
     @httpretty.activate(verbose=True, allow_net_connect=False)