203 lines
7.5 KiB
Python
203 lines
7.5 KiB
Python
#--require-config tls-certificate
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import urllib.parse
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from src import ModuleManager, utils
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HOSTMETA = "https://%s/.well-known/host-meta"
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WEBFINGER_DEFAULT = "https://%s/.well-known/webfinger?resource={uri}"
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WEBFINGER_HEADERS = {"Accept": "application/jrd+json"}
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ACTIVITY_TYPE = "application/activity+json"
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ACTIVITY_HEADERS = {"Accept": ("application/ld+json; "
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'profile="https://www.w3.org/ns/activitystreams"')}
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def _parse_username(s):
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username, _, instance = s.rpartition("@")
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if username.startswith("@"):
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username = username[1:]
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if username and instance:
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return username, instance
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return None, None
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def _format_username(username, instance):
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return "@%s@%s" % (username, instance)
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def _setting_parse(s):
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username, instance = _parse_username(s)
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if username and instance:
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return _format_username(username, instance)
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return None
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@utils.export("set", utils.FunctionSetting(_setting_parse, "fediverse",
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help="Set your fediverse account", example="@gargron@mastodon.social"))
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class Module(ModuleManager.BaseModule):
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_name = "Fedi"
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@utils.hook("received.command.fediverse")
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@utils.hook("received.command.fedi", alias_of="fediverse")
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@utils.kwarg("help", "Get someone's latest toot")
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@utils.kwarg("usage", "@<user>@<instance>")
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def fedi(self, event):
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account = None
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if not event["args"]:
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account = event["user"].get_setting("fediverse", None)
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elif not "@" in event["args"]:
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target = event["args_split"][0]
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if event["server"].has_user_id(target):
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target_user = event["server"].get_user(target)
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account = target_user.get_setting("fediverse", None)
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else:
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account = event["args_split"][0]
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username = None
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instance = None
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if account:
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username, instance = _parse_username(account)
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if not username or not instance:
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raise utils.EventError("Please provide @<user>@<instance>")
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hostmeta = utils.http.request(HOSTMETA % instance,
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soup=True, check_content_type=False)
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webfinger_url = None
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for item in hostmeta.data.find_all("link"):
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if item["rel"] and item["rel"][0] == "lrdd":
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webfinger_url = item["template"]
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break
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if webfinger_url == None:
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self.log.debug("host-meta lookup failed for %s" % instance)
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webfinger_url = WEBFINGER_DEFAULT % instance
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webfinger_url = webfinger_url.replace("{uri}",
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"acct:%s@%s" % (username, instance))
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webfinger = utils.http.request(webfinger_url,
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headers=WEBFINGER_HEADERS, json=True)
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activity_url = None
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for link in webfinger.data["links"]:
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if link["type"] == ACTIVITY_TYPE:
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activity_url = link["href"]
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break
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if not activity_url:
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raise utils.EventError("Failed to find user activity feed")
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activity = utils.http.request(activity_url,
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headers=ACTIVITY_HEADERS, json=True)
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preferred_username = activity.data["preferredUsername"]
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outbox_url = activity.data["outbox"]
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outbox = utils.http.request(outbox_url, headers=ACTIVITY_HEADERS,
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json=True)
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items = None
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if "first" in outbox.data:
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if type(outbox.data["first"]) == dict:
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# pleroma
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items = outbox.data["first"]["orderedItems"]
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else:
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# mastodon
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first = utils.http.request(outbox.data["first"],
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headers=ACTIVITY_HEADERS, json=True)
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items = first.data["orderedItems"]
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else:
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items = outbox.data["orderedItems"]
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if not items:
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raise utils.EventError("No toots found")
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first_item = items[0]
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if first_item["type"] == "Announce":
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retoot_url = first_item["object"]
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retoot_instance = urllib.parse.urlparse(retoot_url).hostname
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retoot = utils.http.request(retoot_url,
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headers=ACTIVITY_HEADERS, json=True)
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original_tooter_url = retoot.data["attributedTo"]
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original_tooter = utils.http.request(original_tooter_url,
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headers=ACTIVITY_HEADERS, json=True)
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retooted_user = "@%s@%s" % (
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original_tooter.data["preferredUsername"],
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retoot_instance)
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shorturl = self.exports.get_one("shorturl")(
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event["server"], retoot_url)
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retoot_content = utils.http.strip_html(
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retoot.data["content"])
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event["stdout"].write("%s (boost %s): %s - %s" % (
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preferred_username, retooted_user, retoot_content,
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shorturl))
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elif first_item["type"] == "Create":
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content = utils.http.strip_html(
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first_item["object"]["content"])
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url = first_item["object"]["id"]
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shorturl = self.exports.get_one("shorturl")(
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event["server"], url)
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event["stdout"].write("%s: %s - %s" % (preferred_username,
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content, shorturl))
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def _ap_self(self):
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our_username = self.bot.get_setting("fediverse", None)
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return _parse_username(our_username)
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def _ap_self_id(self, url_for, our_username):
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return "https://%s" % url_for("api", "ap-user", {"u": our_username})
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@utils.hook("api.get.ap-webfinger")
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@utils.kwarg("authenticated", False)
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def ap_webfinger(self, event):
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our_username, our_instance = self._ap_self()
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resource = event["params"].get("resource", None)
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if resource and resource.startswith("acct:"):
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request = resource.split(":", 1)[1]
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requested_username, requested_instance = _parse_username(request)
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if (requested_username == our_username and
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requested_instance == our_instance):
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self_id = self._ap_self_id(event["url_for"], our_username)
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event["response"].content_type = "application/jrd+json"
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event["response"].write_json({
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"aliases": [self_id],
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"links": [{
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"href": self_id,
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"rel": "self",
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"type": ACTIVITY_TYPE
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}],
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"subject": resource
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})
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@utils.hook("api.get.ap-user")
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@utils.kwarg("authenticated", False)
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def ap_user(self, event):
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our_username, our_instance = self._ap_self()
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username = event["params"].get("u", None)
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if username and username == our_username:
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self_id = self._ap_self_id(event["url_for"], our_username)
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inbox = event["url_for"]("api", "ap-inbox", {"u": our_username})
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cert_filename = self.bot.config["tls-certificate"]
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with open(cert_filename) as cert_file:
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cert = cert_file.read()
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event["response"].content_type = ("application/ld+json; "
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"profile=\"https://www.w3.org/ns/activitystreams\"")
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event["response"].write_json({
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"@context": [
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"https://www.w3.org/ns/activitystreams",
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"https://w3id.org/security/v1"
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],
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"id": self_id,
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"type": "Person",
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"preferredUsername": our_username,
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"inbox": inbox,
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"publicKey": {
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"id": "%s#key" % self_id,
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"owner": self_id,
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"publicKeyPem": cert
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}
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})
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