i think i can scrape guilds live with selenium now

flake.nix

@@ -96,6 +96,7 @@
               python3
               python3Packages.black
               python3Packages.ipython
+              python3Packages.trio
               (python3Packages.selenium.overrideAttrs (old: {
                 postInstall = old.postInstall + ''
                   for ver in v85 v120 v121 v122; do

scripts/emoji/get_discord_emoji.py

@@ -23,48 +23,75 @@ def download_file(url, path):
     time.sleep(0.1)
 
 
-def get_data(filename):
-    bindata = open(filename, "rb").read()
-    decompress = zlib.decompressobj()
-    jsondata = decompress.decompress(bindata).decode("utf-8")
+def get_guilds(filename):
+    if filename.endswith(".json"):
+        # TODO: specify if it's compressed or not better
+        jsondata = open(filename, "r").read()
+    else:
+        bindata = open(filename, "rb").read()
+        decompress = zlib.decompressobj()
+        jsondata = decompress.decompress(bindata).decode("utf-8")
+
     decoder = json.JSONDecoder()
-    while len(jsondata) > 0:
-        obj, end = decoder.raw_decode(jsondata)
-        if obj.get("t", "") == "READY":
-            return obj
-        jsondata = jsondata[end:]
+    guilds = []
+    while (offset := jsondata.find("{")) != -1:
+        obj, end = decoder.raw_decode(jsondata[offset:])
+        jsondata = jsondata[end + offset :]
+
+        typ = obj.get("t", "")
+        if typ == "READY":
+            guilds.extend(obj["d"]["guilds"])
+        elif typ == "GUILD_CREATE":
+            guilds.append(obj["d"])
+
+    return guilds
+
+
+def safe_name(s):
+    # if you're on windows do something else here, i don't care
+    return s.replace("/", " ")
 
 
 def main(*args):
-    data = get_data(args[1])
+    guilds = get_guilds(args[1])
 
-    base_dir = pathlib.Path("guilds")
+    base_dir = pathlib.Path("out") / "discord"
 
-    for guild in data["d"]["guilds"]:
+    for guild in guilds:
         name = guild["properties"]["name"]
         print(f"Processing guild '{name}'")
 
-        guild_dir = base_dir / name.replace("/", " ")
-        sticker_dir = guild_dir / "stickers"
-        sticker_dir.mkdir(parents=True, exist_ok=True)
-        emoji_dir = guild_dir / "emoji"
-        emoji_dir.mkdir(exist_ok=True)
+        sticker_objs = guild["stickers"]
+        emoji_objs = guild["emojis"]
 
-        for sticker in guild["stickers"]:
-            break
+        dir_name = safe_name(name)
+        sticker_dir = base_dir / "stickers" / dir_name
+        emoji_dir = base_dir / "emoji" / dir_name
+
+        if len(sticker_objs) > 0:
+            sticker_dir.mkdir(exist_ok=True, parents=True)
+        if len(emoji_objs) > 0:
+            emoji_dir.mkdir(exist_ok=True, parents=True)
+
+        for sticker in sticker_objs:
             print(f"Found sticker '{sticker['name']}'")
             extension = STICKER_EXTENSIONS[sticker["format_type"]]
-            url = f"https://media.discordapp.net/stickers/{sticker['id']}.{extension}?size=4096"
+            if extension == "json":
+                # Lottie is weird for some reason
+                url = f"https://discord.com/stickers/{sticker['id']}.json"
+            else:
+                url = f"https://media.discordapp.net/stickers/{sticker['id']}.{extension}?size=4096"
             # Set passthrough=false for APNGs if you don't want animated
-            filename = sticker_dir / f"{sticker['name']}.{extension}"
+
+            filename = sticker_dir / f"{safe_name(sticker['name'])}.{extension}"
             print(f"Downloading {url} to {filename}")
             download_file(url, filename)
 
-        for emoji in guild["emojis"]:
+        for emoji in emoji_objs:
             print(f"Found emoji '{emoji['name']}'")
             extension = "gif" if emoji["animated"] else "png"
             url = f"https://cdn.discordapp.com/emojis/{emoji['id']}.{extension}"
-            filename = emoji_dir / f"{emoji['name']}.{extension}"
+            filename = emoji_dir / f"{safe_name(emoji['name'])}.{extension}"
             print(f"Downloading {url} to {filename}")
             download_file(url, filename)
 

scripts/emoji/scrape_guilds.py

@@ -1,18 +1,84 @@
 #!/usr/bin/env python3
+"""
+Scrape guilds with selenium
+You probably shouldn't use this, but if you really must:
+* Set the CHROME environment variable to the path to your chrome or chromium
+* You probably want to connect to an existing chrome instance so you can log in first,
+  run `chromium --user-data-dir=$HOME/.cache/chromium-emoji-script --remote-debugging-port=9222`
+  to start chromium then `env CHROME=$(command -v chromium) ./scrape_guilds.py 127.0.0.1:99222`
+* It just gives you json, you have to dump later
+
+"""
+
+import base64
+import json
 import os.path
 import os
+import sys
+import zlib
+
 from selenium import webdriver
+import trio
 
-options = webdriver.ChromeOptions()
-if location := os.getenv("CHROME"):
-    options.binary_location = location
-options.add_argument("--start-maximized")
-options.add_argument(
-    "--user-data-dir=" + os.path.expanduser("~/.cache/chromium-emoji-script")
-)
-options.add_experimental_option("detach", True)
-driver = webdriver.Chrome(options=options)
 
-# Selenium says this API is deprecated but there's no better working option in Python
-# (okay, maybe there is but they don't really have docs)
+def setup_driver():
+    options = webdriver.ChromeOptions()
+    if location := os.getenv("CHROME"):
+        options.binary_location = location
+    options.add_argument("--start-maximized")
+    options.add_argument(
+        "--user-data-dir=" + os.path.expanduser("~/.cache/chromium-emoji-script")
+    )
+    if len(sys.argv) > 1:
+        options.add_experimental_option("debuggerAddress", sys.argv[1])
 
+    # options.add_experimental_option("detach", True)
+    return webdriver.Chrome(options=options)
+
+
+async def handle_events(listener, out_file):
+    valid_id = None
+    decompress = None
+
+    async for event in listener:
+        typ = event.__class__.__name__
+        if typ == "WebSocketCreated":
+            if event.url.startswith("wss://gateway.discord.gg/"):
+                valid_id = event.request_id
+                decompress = zlib.decompressobj()
+        elif typ == "WebSocketFrameReceived":
+            if event.request_id != valid_id:
+                continue
+            message = json.loads(
+                decompress.decompress(base64.b64decode(event.response.payload_data))
+            )
+            message_type = message.get("t")
+            await out_file.write(json.dumps(message) + "\n")
+            # The data we actually want, might as well flush
+            if message_type in ["READY", "GUILD_CREATE"]:
+                await out_file.flush()
+
+            print("Got message of type", message_type)
+
+
+async def main():
+    out_path = await trio.Path.cwd() / "out" / "discord" / "events.json"
+    await out_path.parent.mkdir(parents=True, exist_ok=True)
+    out_file = await out_path.open("a")
+
+    driver = setup_driver()
+    async with driver.bidi_connection() as conn:
+        devtools, session = conn.devtools, conn.session
+
+        await session.execute(devtools.network.enable())
+        listener = session.listen(
+            devtools.network.WebSocketCreated,
+            devtools.network.WebSocketFrameReceived,
+            buffer_size=1024,
+        )
+
+        await handle_events(listener, out_file)
+
+
+if __name__ == "__main__":
+    trio.run(main)