Use Tor to get pruned node blockchain data and connect to remote Core node

requirements.txt

@@ -9,5 +9,6 @@ hwi==1.1.2
 pyserial==3.4
 python-dotenv==0.13.0
 requests==2.23.0
+pysocks==1.7.1
 six==1.12.0
 stem==1.8.0

src/cryptoadvance/specter/rpc.py

@@ -264,8 +264,27 @@ def multi(self, calls: list, **kwargs):
         url = self.url
         if "wallet" in kwargs:
             url = url+"/wallet/{}".format(kwargs["wallet"])
-        r = requests.post(
-            url, data=json.dumps(payload), headers=headers, timeout=timeout)
+        r = None
+        if '.onion' in url:
+            try:
+                requests_session = requests.Session()
+                requests_session.proxies['http'] = 'socks5h://localhost:9050'
+                requests_session.proxies['https'] = 'socks5h://localhost:9050'
+                r = requests_session.post(
+                    url,
+                    data=json.dumps(payload),
+                    headers=headers,
+                    timeout=timeout
+                )
+            except Exception:
+                pass  # Tor call failed
+        if r is None:
+            r = requests.post(
+                url,
+                data=json.dumps(payload),
+                headers=headers,
+                timeout=timeout
+            )
         self.r = r
         if r.status_code != 200:
             raise RpcError(

src/cryptoadvance/specter/templates/includes/sidebar/components/bitcoin_core_info.jinja

@@ -1,5 +1,4 @@
-<div id="bitcoin_core_info" class="hidden"
-style="text-align: left;">
+<div id="bitcoin_core_info" class="hidden" style="text-align: left; max-width: 500px;">
     <h1>Bitcoin Core Node Info:</h1>
     {% if specter.chain %}
         {% if specter.info['pruned'] %}

src/cryptoadvance/specter/wallet.py

@@ -432,18 +432,25 @@ def _rescan_utxo_thread(self, explorer=None):
             for tx in existing
         ])
         # handle missing transactions now
-        # TODO: do it over Tor
+        # if Tor is running, requests will be sent over Tor
         if explorer is not None:
+            try:
+                requests_session = requests.Session()
+                requests_session.proxies['http'] = 'socks5h://localhost:9050'
+                requests_session.proxies['https'] = 'socks5h://localhost:9050'
+                requests_session.get(explorer)
+            except Exception:
+                requests_session = requests.Session()
             # make sure there is no trailing /
             explorer = explorer.rstrip("/")
             try:
                 # get raw transactions
-                raws = [requests.get(
+                raws = [requests_session.get(
                             f"{explorer}/api/tx/{tx['txid']}/hex"
                             ).text
                         for tx in missing]
                 # get proofs
-                proofs = [requests.get(
+                proofs = [requests_session.get(
                             f"{explorer}/api/tx/{tx['txid']}/merkleblock-proof"
                             ).text
                           for tx in missing]