[doc] show done?

docs/show.org

@@ -88,7 +88,7 @@ ME = {
         "sharedInbox": config.BASE_URL + "/inbox",
     },
     "url": config.ID + "/",  # Important for Mastodon
-    "manuallyApprovesFollowers": False,
+    "manuallyApprovesFollowers": config.MANUALLY_APPROVES_FOLLOWERS,
     "attachment": [],
     "icon": {
         "mediaType": "image/png",
@@ -118,7 +118,6 @@ def locate_user() -> Response:
 GET http://coscup.localhost/user/show
 #+end_src
 
-
 ** WebFinger
 #+begin_src python
 from flask import Flask, abort, request, Response, jsonify
@@ -163,9 +162,7 @@ def wellknown_webfinger() -> Response:
 GET http://coscup.localhost/.well-known/webfinger?resource=acct:show@coscup.localhost
 #+end_src
 
-
 ** HTTP Signature
-
 other.localhost --Follow-> coscup.localhost
 
 #+begin_src json
@@ -174,7 +171,7 @@ other.localhost --Follow-> coscup.localhost
    "@context": "https://www.w3.org/ns/activitystreams",
    "id": "http://other.localhost/9ef8847d72434cff82254f36ff88e710",
    "type": "Follow",
-   "actor": "http://other.localhost",
+   "actor": "http://other.localhost/accounts/other",
    "object": "http://coscup.localhost/meow/show"
 }
 
@@ -205,15 +202,14 @@ def parse_signature(
         detail[name.lower()] = value
     signature_details = {
         "headers": detail["headers"].split(),
-        "signature": (detail["signature"]),
+        "signature": detail["signature"],
         "algorithm": detail["algorithm"],
         "keyid": detail["keyid"],
     }
     return signature_details
 #+end_src
 
-
-parse_signature(headers["signature"])
+parsed_signature = parse_signature(headers["signature"])
 #+begin_src json
  {"algorithm": "rsa-sha256",
   "headers": ["(request-target)", "user-agent", "host", "date", "digest", "content-type"],
@@ -221,7 +217,6 @@ parse_signature(headers["signature"])
   "signature": "irioDQuhYstSvafpl6DW4d31wDPRiTv7MZGyBo3j4kkc2TrfOweH3WRMMnoaWwl4LAI2WYLoKefeQpOg7Rm7ZEffsoLOzZvgdWJBm8lnOEgieyy5l2Vq1mlcS2PRJCisYGdzAwFOBkcHk0WKAZXvs1ieRV34NHfM8JF+DjrCBTZ/U9LyxULBwC6tPQTh9tflCOwXZOzXUq17C+2Uzsr8h4tDHjbmrG7OAcvYiPeOUKaP+InoE6j9ViHllhidNCPL0y8b1c7c72ruN48kF42OfyfUeiuCcuLwdp8eYBlTdG/ZsT2YXyKruwim3tTD1TtyW4Vfll+F/4/1RfWHsc9LrQ=="}
 #+end_src
 
-
 #+begin_src python
 import base64
 from Crypto.Hash import SHA256
@@ -254,16 +249,17 @@ def build_signature_string(
     return "\n".join(sign_str)
 
 
-build_signature_string(
+signature_string = build_signature_string(
     request.method  # "post"
     request.path    # "/inbox"
-    parse_signature(headers["signature"])["headers"], # ["(request-target)", "user-agent", "host", "date", "digest", "content-type"]
+    parsed_signature["headers"], # ["(request-target)", "user-agent", "host", "date", "digest", "content-type"]
     calculate_digest(request.data),
     headers,
 )
 
 #+end_src
 
+signature_string
 #+begin_quote
 (request-target): post /inbox
 user-agent: something/fediverse+app
@@ -272,3 +268,170 @@ date: Tue, 11 Jul 2023 04:21:11 GMT
 digest: SHA-256=WzNniTyRBcZpgK7a6zYJBgsdKIQmFEPPfysh/ZzKb2o=
 content-type: application/activity+json
 #+end_quote
+
+#+begin_src python
+from Crypto.Hash import SHA256
+from Crypto.Signature import PKCS1_v1_5
+from Crypto.PublicKey import RSA
+
+def verify_signature(
+        signature_string: str,
+        signature: bytes, # base64.b64decode(parsed_signature["signature"])
+        pubkey: str,
+) -> bool :
+    pubkey = RSA.importKey(pubkey)
+    signer = PKCS1_v1_5.new(pubkey)
+    digest = SHA256.new()
+    digest.update(signature_string.encode("utf-8"))
+    return signer.verify(digest, signature)
+#+end_src
+
+** Activity!
+*** Follow / Accept
+other.localhost --Follow-> coscup.localhost
+#+begin_src json
+{
+   "@context": "https://www.w3.org/ns/activitystreams",
+   "id": "http://other.localhost/9ef8847d72434cff82254f36ff88e710",
+   "type": "Follow",
+   "actor": "http://other.localhost/accounts/other",
+   "object": "http://coscup.localhost/meow/show"
+}
+#+end_src
+
+#+begin_src python
+def _process_inbox_request(...):
+    ...
+    actor = feact_actor(ap_object["actor"])
+    ...
+    if "Follow" == ap_object["type"]:
+        if _handle_follow(actor, ap_object):
+            ...
+    elif "Create" == ap_object["type"]:
+        if _handle_create(ap_object):
+            ...
+
+
+def _handle_follow(...):
+    if ME["id"] != ap_object["object"]:
+        logger.warning("wrong follow object!" + .ap_object["id"])
+        return False
+
+    if MANUALLY_APPROVES_FOLLOWERS:
+        save_follow_request(ap_object)
+        return True
+
+    _send_accept(actor, ap_object)
+    save_follower()
+    return True
+
+
+async def _send_accept(...) -> None :
+    reply_id = BASE_URL + str(uuid.uuid4())
+
+    actor_url = actor["inbox"]
+    payload = {
+        "@context": AS_CTX,
+        "id": reply_id,
+        "type": "Accept",
+        "actor": ID,                # http://coscup.localhost/user/show
+        "object": ap_object["id"],  # http://other.localhost/9ef8847d72434cff82254f36ff88e710
+    }
+
+    post(actor_url, payload)
+#+end_src
+
+*** Creat!
+#+begin_src json
+{
+   "@context" : [
+      "https://www.w3.org/ns/activitystreams",
+      {
+         "Emoji" : "toot:Emoji",
+         "atomUri" : "ostatus:atomUri",
+         "conversation" : "ostatus:conversation",
+         "focalPoint" : {
+            "@container" : "@list",
+            "@id" : "toot:focalPoint"
+         },
+         "inReplyToAtomUri" : "ostatus:inReplyToAtomUri",
+         "ostatus" : "http://ostatus.org#",
+         "sensitive" : "as:sensitive",
+         "toot" : "http://joinmastodon.org/ns#",
+         "votersCount" : "toot:votersCount"
+      }
+   ],
+   "type":"Create",
+   "published" : "2023-07-13T16:04:57Z",
+   "cc" : ["http://coscup.localhost/users/show/followers"],
+   "to" : ["https://www.w3.org/ns/activitystreams#Public"],
+   "id" : "http://coscup.localhost/79d42b46-aa2f-4837-835a-5f75ce9a253f",
+   "object": {
+       "attributedTo" : "http://coscup.localhost/user/show",
+       "cc" : ["http://coscup.localhost/users/show/followers"],
+       "to" : ["https://www.w3.org/ns/activitystreams#Public"],
+       "id" : "http://coscup.localhost/79d42b46-aa2f-4837-835a-5f75ce9a253f",
+       "content" : "<p>Hello World!</p>",
+       "inReplyTo" : null,
+       "published" : "2023-07-13T16:04:57Z",
+       "sensitive" : false,
+       "summary" : null,
+       "tag" : [],
+       "type" : "Note",
+       "url" : "http://coscup.localhost/79d42b46-aa2f-4837-835a-5f75ce9a253f"
+   },
+}
+#+end_src
+
+#+begin_src python
+def _send_create(...):
+    object_id = BASE_URL + str(uuid.uuid4())
+    to = []
+    cc = []
+    if visibility == "public":
+        to = [ap.AS_PUBLIC]
+        cc = [f"{BASE_URL}/followers"]
+    else:
+        raise ValueError(f"Unsupport visibility {visibility}")
+
+    ap_object = {
+        "type": "Note",
+        "id": object_id,
+        "attributedTo": ID,
+        "content": content,
+        "to": to,
+        "cc": cc,
+        "published": published,
+        "url": object_id,
+        "tag": [],
+        "content": content, # <p>Hello World!<p>
+        "summary": summary,
+        "inReplyTo": reply_id,
+        "sensitive": sensitive,
+        "attachment": [],
+    }
+
+    recipients = set()
+    for actor in get_followers():
+        recipients.add(actor.sharedInbox or actor.inbox_url)
+
+    ap_object = wrap_ap_object(ap_object)
+
+    for inbox_url in recipients:
+        post(inbox_url, ap_object,)
+
+    return True
+
+
+def wrap_ap_object(...):
+    return {
+        "@context": AS_EXTENDED_CTX,
+        "actor": config.ID,
+        "to": ap_object.get("to", []),
+        "cc": ap_object.get("cc", []),
+        "id": ap_object["id"],
+        "object": ap_object,
+        "published": now()
+        "type": "Create",
+    }
+#+end_src