|
| 1 | +use crate::analyze::{Analyzer, StatusPayload}; |
| 2 | +use crate::network::schema::{read_string, read_var_int_buf}; |
| 3 | +use async_trait::async_trait; |
| 4 | +use bytes::{Buf, BufMut, BytesMut}; |
| 5 | +use clap::Args; |
| 6 | +use std::io::ErrorKind; |
| 7 | + |
| 8 | +#[derive(Args, Debug)] |
| 9 | +pub struct ForgeInfoArgs { |
| 10 | + /// Display forge channels |
| 11 | + #[arg(long)] |
| 12 | + display_channels: bool, |
| 13 | +} |
| 14 | + |
| 15 | +pub struct ForgeInfo<'a> { |
| 16 | + args: &'a ForgeInfoArgs, |
| 17 | +} |
| 18 | + |
| 19 | +async fn try_analyze_encoded(data: &str, display_channels: bool) -> std::io::Result<()> { |
| 20 | + let chars = data.encode_utf16().collect::<Vec<u16>>(); |
| 21 | + if chars.len() < 2 { |
| 22 | + return Err(std::io::Error::new( |
| 23 | + ErrorKind::InvalidData, |
| 24 | + "ForgeData too short", |
| 25 | + )); |
| 26 | + } |
| 27 | + |
| 28 | + let buffer_len = chars[0] as u32 | (chars[1] as u32) << 15; |
| 29 | + let mut buffer = BytesMut::with_capacity(buffer_len as usize); |
| 30 | + let mut bits_in_buf = 0; |
| 31 | + let mut buf = 0; |
| 32 | + for char in chars[2..].iter() { |
| 33 | + while bits_in_buf >= 8 { |
| 34 | + buffer.put_u8((buf & 0xFF) as u8); |
| 35 | + buf >>= 8; |
| 36 | + bits_in_buf -= 8; |
| 37 | + } |
| 38 | + buf |= ((*char as u32) & 32767) << bits_in_buf; |
| 39 | + bits_in_buf += 15; |
| 40 | + } |
| 41 | + while bits_in_buf > 0 { |
| 42 | + buffer.put_u8((buf & 0xFF) as u8); |
| 43 | + buf >>= 8; |
| 44 | + bits_in_buf -= 8; |
| 45 | + } |
| 46 | + log::trace!("ForgeData: {:?}", String::from_utf8(buffer.to_vec())); |
| 47 | + |
| 48 | + if buffer.try_get_u8()? != 0 { |
| 49 | + log::info!("Server truncated mod information"); |
| 50 | + } |
| 51 | + |
| 52 | + let size = buffer.try_get_u16()?; |
| 53 | + for _ in 0..size { |
| 54 | + let flag = read_var_int_buf(&mut buffer)?; |
| 55 | + let ch_size = flag >> 1 & (!(1 << 31)); |
| 56 | + let ignore_server_only = flag & 1 != 0; |
| 57 | + let name = read_string(&mut buffer)?; |
| 58 | + let version = if ignore_server_only { |
| 59 | + "<UNCHECKED>".to_string() |
| 60 | + } else { |
| 61 | + read_string(&mut buffer)? |
| 62 | + }; |
| 63 | + if version == "" { |
| 64 | + log::info!("Mod: {}", name); |
| 65 | + } else { |
| 66 | + log::info!("Mod: {} ({})", name, version); |
| 67 | + } |
| 68 | + |
| 69 | + for _ in 0..ch_size { |
| 70 | + let path = read_string(&mut buffer)?; |
| 71 | + let ver = read_var_int_buf(&mut buffer)?; |
| 72 | + let required = buffer.try_get_u8()? != 0; |
| 73 | + if !display_channels { |
| 74 | + continue; |
| 75 | + } |
| 76 | + if required { |
| 77 | + log::info!(" Channel* {} ({})", path, ver); |
| 78 | + } else { |
| 79 | + log::info!(" Channel {} ({})", path, ver); |
| 80 | + } |
| 81 | + } |
| 82 | + } |
| 83 | + |
| 84 | + if !display_channels { |
| 85 | + return Ok(()); |
| 86 | + } |
| 87 | + |
| 88 | + let non_mod_channels = read_var_int_buf(&mut buffer)?; |
| 89 | + if non_mod_channels == 0 { |
| 90 | + return Ok(()); |
| 91 | + } |
| 92 | + log::info!("Non-mod channels:"); |
| 93 | + for _ in 0..non_mod_channels { |
| 94 | + let path = read_string(&mut buffer)?; |
| 95 | + let ver = read_var_int_buf(&mut buffer)?; |
| 96 | + if buffer.try_get_u8()? != 0 { |
| 97 | + log::info!(" Channel* {} ({})", path, ver); |
| 98 | + } else { |
| 99 | + log::info!(" Channel {} ({})", path, ver); |
| 100 | + } |
| 101 | + } |
| 102 | + |
| 103 | + Ok(()) |
| 104 | +} |
| 105 | + |
| 106 | +#[async_trait] |
| 107 | +impl Analyzer for ForgeInfo<'_> { |
| 108 | + fn enabled(&self, payload: &StatusPayload) -> bool { |
| 109 | + payload |
| 110 | + .full_extra |
| 111 | + .as_ref() |
| 112 | + .map(|m| m["forgeData"].as_object()) |
| 113 | + .flatten() |
| 114 | + .is_some() |
| 115 | + } |
| 116 | + |
| 117 | + async fn analyze(&self, payload: &StatusPayload) { |
| 118 | + let forge_data = &payload.full_extra.as_ref().expect("Forge data")["forgeData"]; |
| 119 | + log::info!( |
| 120 | + "Forge Mod Loader (Network Version {})", |
| 121 | + forge_data["fmlNetworkVersion"] |
| 122 | + .as_i64() |
| 123 | + .map(|i| i.to_string()) |
| 124 | + .unwrap_or("<unknown version>".to_string()) |
| 125 | + ); |
| 126 | + if let Some(data) = forge_data["d"].as_str() { |
| 127 | + try_analyze_encoded(data, self.args.display_channels) |
| 128 | + .await |
| 129 | + .err() |
| 130 | + .map(|e| log::error!("{}", e)); |
| 131 | + } else { |
| 132 | + if forge_data["truncated"].as_bool().unwrap_or(false) { |
| 133 | + log::info!("Server truncated mod information"); |
| 134 | + } |
| 135 | + |
| 136 | + let default_vec = vec![]; |
| 137 | + let mod_list = forge_data["mods"].as_array().unwrap_or(&default_vec); |
| 138 | + let ch_list = forge_data["channels"].as_array().unwrap_or(&default_vec); |
| 139 | + |
| 140 | + for mod_data in mod_list { |
| 141 | + let name = mod_data["modId"].as_str().unwrap_or("<unknown name>"); |
| 142 | + let version = mod_data["modmarker"].as_str().unwrap_or(""); |
| 143 | + if version == "" { |
| 144 | + log::info!("Mod: {}", name); |
| 145 | + } else { |
| 146 | + log::info!("Mod: {} ({})", name, version); |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + if self.args.display_channels { |
| 151 | + for ch in ch_list { |
| 152 | + let path = ch["res"].as_str().unwrap_or("<unknown path>"); |
| 153 | + let ver = ch["version"].as_i64().unwrap_or(0); |
| 154 | + if ch["required"].as_bool().unwrap_or(false) { |
| 155 | + log::info!(" Channel* {} ({})", path, ver); |
| 156 | + } else { |
| 157 | + log::info!(" Channel {} ({})", path, ver); |
| 158 | + } |
| 159 | + } |
| 160 | + } |
| 161 | + } |
| 162 | + } |
| 163 | +} |
| 164 | + |
| 165 | +impl ForgeInfo<'_> { |
| 166 | + pub fn new(args: &'_ ForgeInfoArgs) -> ForgeInfo<'_> { |
| 167 | + ForgeInfo { args } |
| 168 | + } |
| 169 | +} |
0 commit comments