Big Debug of PMOQobuz step 3

pmoqobuz/test_python_qobuz/spoofbuz.py

@@ -0,0 +1,59 @@
+import base64
+import re
+from collections import OrderedDict
+
+import requests
+
+
+class Spoofer:
+    def __init__(self):
+        self.seed_timezone_regex = (
+            r'[a-z]\.initialSeed\("(?P<seed>[\w=]+)",window\.utimezone\.(?P<timezone>[a-z]+)\)'
+        )
+        # note: {timezones} should be replaced with every capitalized timezone joined by a |
+        self.info_extras_regex = r'name:"\w+/(?P<timezone>{timezones})",info:"(?P<info>[\w=]+)",extras:"(?P<extras>[\w=]+)"'
+        self.appId_regex = r'production:{api:{appId:"(?P<app_id>\d{9})",appSecret:"(?P<secret>\w{32})"},braze:.\(.\({},.\),{},{apiKey:"([-0-9a-fA-F]{36})"}\),extra:.}'
+        login_page_request = requests.get("https://play.qobuz.com/login")
+        login_page = login_page_request.text
+        bundle_url_match = re.search(
+            r'<script src="(/resources/\d+\.\d+\.\d+-[a-z]\d{3}/bundle\.js)"></script>',
+            login_page,
+        )
+        bundle_url = bundle_url_match.group(1)
+        bundle_req = requests.get("https://play.qobuz.com" + bundle_url)
+        self.bundle = bundle_req.text
+
+    def getAppId(self):
+        return re.search(self.appId_regex, self.bundle).group("app_id")
+
+    def getSecrets(self):
+        seed_matches = re.finditer(self.seed_timezone_regex, self.bundle)
+        secrets = OrderedDict()
+        for match in seed_matches:
+            seed, timezone = match.group("seed", "timezone")
+            secrets[timezone] = [seed]
+        """The code that follows switches around the first and second timezone. Why? Read on:
+            Qobuz uses two ternary (a shortened if statement) conditions that should always return false.
+            The way Javascript's ternary syntax works, the second option listed is what runs if the condition returns false.
+            Because of this, we must prioritize the *second* seed/timezone pair captured, not the first.
+        """
+        keypairs = list(secrets.items())
+        secrets.move_to_end(keypairs[1][0], last=False)
+        info_extras_regex = self.info_extras_regex.format(
+            timezones="|".join([timezone.capitalize() for timezone in secrets])
+        )
+        info_extras_matches = re.finditer(info_extras_regex, self.bundle)
+        for match in info_extras_matches:
+            timezone, info, extras = match.group("timezone", "info", "extras")
+            secrets[timezone.lower()] += [info, extras]
+        for secret_pair in secrets:
+            secrets[secret_pair] = base64.standard_b64decode(
+                "".join(secrets[secret_pair])[:-44]
+            ).decode("utf-8")
+        return secrets
+
+
+if __name__ == "__main__":
+    spoofer = Spoofer()
+    print("%s" % spoofer.getSecrets())
+    print("%s" % spoofer.getAppId())