chore: extract dayz from valve (#448)

lib/games.js

@@ -654,7 +654,7 @@ export const games = {
     options: {
       port: 2302,
       port_query_offset: 24714,
-      protocol: 'valve'
+      protocol: 'dayz'
     }
   },
   dayzmod: {

protocols/dayz.js

@@ -0,0 +1,182 @@
+import valve from './valve.js'
+import { Buffer } from 'node:buffer'
+
+export default class dayz extends valve {
+  async run (state) {
+    if (!this.options.port) this.options.port = 27016
+    await super.queryInfo(state)
+    await super.queryChallenge()
+    await super.queryPlayers(state)
+    await this.queryRules(state)
+
+    this.processQueryInfo(state)
+    await super.cleanup(state)
+  }
+
+  async queryRules (state) {
+    if (!this.options.requestRules) {
+      return
+    }
+
+    const rules = {}
+    state.raw.rules = rules
+    const dayZPayload = []
+
+    this.logger.debug('Requesting rules ...')
+
+    const b = await this.sendPacket(0x56, null, 0x45, true)
+    if (b === null) return // timed out - the server probably has rules disabled
+
+    let dayZPayloadEnded = false
+
+    const reader = this.reader(b)
+    const num = reader.uint(2)
+    for (let i = 0; i < num; i++) {
+      if (!dayZPayloadEnded) {
+        const one = reader.uint(1)
+        const two = reader.uint(1)
+        const three = reader.uint(1)
+        if (one !== 0 && two !== 0 && three === 0) {
+          while (true) {
+            const byte = reader.uint(1)
+            if (byte === 0) break
+            dayZPayload.push(byte)
+          }
+          continue
+        } else {
+          reader.skip(-3)
+          dayZPayloadEnded = true
+        }
+      }
+
+      const key = reader.string()
+      rules[key] = reader.string()
+    }
+
+    state.raw.dayzMods = this.readDayzMods(Buffer.from(dayZPayload))
+  }
+
+  processQueryInfo (state) {
+    // DayZ embeds some of the server information inside the tags attribute
+    if (!state.raw.tags) { return }
+
+    state.raw.dlcEnabled = false
+    state.raw.firstPerson = false
+    for (const tag of state.raw.tags) {
+      if (tag.startsWith('lqs')) {
+        const value = parseInt(tag.replace('lqs', ''))
+        if (!isNaN(value)) {
+          state.raw.queue = value
+        }
+      }
+      if (tag.includes('no3rd')) {
+        state.raw.firstPerson = true
+      }
+      if (tag.includes('isDLC')) {
+        state.raw.dlcEnabled = true
+      }
+      if (tag.includes(':')) {
+        state.raw.time = tag
+      }
+      if (tag.startsWith('etm')) {
+        const value = parseInt(tag.replace('etm', ''))
+        if (!isNaN(value)) {
+          state.raw.dayAcceleration = value
+        }
+      }
+      if (tag.startsWith('entm')) {
+        const value = parseInt(tag.replace('entm', ''))
+        if (!isNaN(value)) {
+          state.raw.nightAcceleration = value
+        }
+      }
+    }
+  }
+
+  readDayzMods (/** Buffer */ buffer) {
+    if (!buffer.length) {
+      return {}
+    }
+
+    this.logger.debug('DAYZ BUFFER')
+    this.logger.debug(buffer)
+
+    const reader = this.reader(buffer)
+    const version = this.readDayzByte(reader)
+    const overflow = this.readDayzByte(reader)
+    const dlc1 = this.readDayzByte(reader)
+    const dlc2 = this.readDayzByte(reader)
+    this.logger.debug('version ' + version)
+    this.logger.debug('overflow ' + overflow)
+    this.logger.debug('dlc1 ' + dlc1)
+    this.logger.debug('dlc2 ' + dlc2)
+    if (dlc1) {
+      const unknown = this.readDayzUint(reader, 4) // ?
+      this.logger.debug('unknown ' + unknown)
+    }
+    if (dlc2) {
+      const unknown = this.readDayzUint(reader, 4) // ?
+      this.logger.debug('unknown ' + unknown)
+    }
+    const mods = []
+    mods.push(...this.readDayzModsSection(reader, true))
+    mods.push(...this.readDayzModsSection(reader, false))
+    this.logger.debug('dayz buffer rest:', reader.rest())
+    return mods
+  }
+
+  readDayzModsSection (/** Reader */ reader, withHeader) {
+    const out = []
+    const count = this.readDayzByte(reader)
+    this.logger.debug('dayz mod section withHeader:' + withHeader + ' count:' + count)
+    for (let i = 0; i < count; i++) {
+      if (reader.done()) break
+      const mod = {}
+      if (withHeader) {
+        mod.unknown = this.readDayzUint(reader, 4) // ?
+
+        // For some reason this is 4 on all of them, but doesn't exist on the last one? but only sometimes?
+        const offset = reader.offset()
+        const flag = this.readDayzByte(reader)
+        if (flag !== 4) reader.setOffset(offset)
+
+        mod.workshopId = this.readDayzUint(reader, 4)
+      }
+      mod.title = this.readDayzString(reader)
+      this.logger.debug(mod)
+      out.push(mod)
+    }
+    return out
+  }
+
+  readDayzUint (reader, bytes) {
+    const out = []
+    for (let i = 0; i < bytes; i++) {
+      out.push(this.readDayzByte(reader))
+    }
+    const buf = Buffer.from(out)
+    const r2 = this.reader(buf)
+    return r2.uint(bytes)
+  }
+
+  readDayzByte (reader) {
+    const byte = reader.uint(1)
+    if (byte === 1) {
+      const byte2 = reader.uint(1)
+      if (byte2 === 1) return 1
+      if (byte2 === 2) return 0
+      if (byte2 === 3) return 0xff
+      return 0 // ?
+    }
+    return byte
+  }
+
+  readDayzString (reader) {
+    const length = this.readDayzByte(reader)
+    const out = []
+    for (let i = 0; i < length; i++) {
+      out.push(this.readDayzByte(reader))
+    }
+    return Buffer.from(out).toString('utf8')
+  }
+}

protocols/index.js

@@ -50,11 +50,12 @@ import ventrilo from './ventrilo.js'
 import warsow from './warsow.js'
 import beammpmaster from './beammpmaster.js'
 import beammp from './beammp.js'
+import dayz from './dayz.js'
 
 export {
   armagetron, ase, asa, assettocorsa, battlefield, buildandshoot, cs2d, discord, doom3, eco, epic, ffow, fivem, gamespy1,
   gamespy2, gamespy3, geneshift, goldsrc, hexen2, jc2mp, kspdmp, mafia2mp, mafia2online, minecraft,
   minecraftbedrock, minecraftvanilla, mumble, mumbleping, nadeo, openttd, quake1, quake2, quake3, rfactor, samp,
   savage2, starmade, starsiege, teamspeak2, teamspeak3, terraria, tribes1, tribes1master, unreal2, ut3, valve,
-  vcmp, ventrilo, warsow, eldewrito, beammpmaster, beammp
+  vcmp, ventrilo, warsow, eldewrito, beammpmaster, beammp, dayz
 }

protocols/valve.js

@@ -6,7 +6,6 @@ const AppId = {
   Squad: 393380,
   Bat1944: 489940,
   Ship: 2400,
-  DayZ: 221100,
   Rust: 252490,
   CSGO: 730,
   CS_Source: 240,
@@ -132,43 +131,6 @@ export default class valve extends Core {
       this.goldsrcSplits = true
     }
 
-    // DayZ embeds some of the server information inside the tags attribute
-    if (appId === AppId.DayZ) {
-      if (state.raw.tags) {
-        state.raw.dlcEnabled = false
-        state.raw.firstPerson = false
-        for (const tag of state.raw.tags) {
-          if (tag.startsWith('lqs')) {
-            const value = parseInt(tag.replace('lqs', ''))
-            if (!isNaN(value)) {
-              state.raw.queue = value
-            }
-          }
-          if (tag.includes('no3rd')) {
-            state.raw.firstPerson = true
-          }
-          if (tag.includes('isDLC')) {
-            state.raw.dlcEnabled = true
-          }
-          if (tag.includes(':')) {
-            state.raw.time = tag
-          }
-          if (tag.startsWith('etm')) {
-            const value = parseInt(tag.replace('etm', ''))
-            if (!isNaN(value)) {
-              state.raw.dayAcceleration = value
-            }
-          }
-          if (tag.startsWith('entm')) {
-            const value = parseInt(tag.replace('entm', ''))
-            if (!isNaN(value)) {
-              state.raw.nightAcceleration = value
-            }
-          }
-        }
-      }
-    }
-
     if (appId === AppId.Rust) {
       if (state.raw.tags) {
         for (const tag of state.raw.tags) {
@@ -250,7 +212,6 @@ export default class valve extends Core {
 
     const rules = {}
     state.raw.rules = rules
-    const dayZPayload = []
 
     this.logger.debug('Requesting rules ...')
 
@@ -260,38 +221,17 @@ export default class valve extends Core {
       const reader = this.reader(b)
       while (!reader.done()) {
         const key = reader.string()
-        const value = reader.string()
-        rules[key] = value
+        rules[key] = reader.string()
       }
     } else {
       const b = await this.sendPacket(0x56, null, 0x45, true)
       if (b === null) return // timed out - the server probably has rules disabled
 
-      let dayZPayloadEnded = false
-
       const reader = this.reader(b)
       const num = reader.uint(2)
       for (let i = 0; i < num; i++) {
-        if (appId === AppId.DayZ && !dayZPayloadEnded) {
-          const one = reader.uint(1)
-          const two = reader.uint(1)
-          const three = reader.uint(1)
-          if (one !== 0 && two !== 0 && three === 0) {
-            while (true) {
-              const byte = reader.uint(1)
-              if (byte === 0) break
-              dayZPayload.push(byte)
-            }
-            continue
-          } else {
-            reader.skip(-3)
-            dayZPayloadEnded = true
-          }
-        }
-
         const key = reader.string()
-        const value = reader.string()
-        rules[key] = value
+        rules[key] = reader.string()
       }
     }
 
@@ -323,97 +263,6 @@ export default class valve extends Core {
         state.password = true
       }
     }
-
-    if (appId === AppId.DayZ) {
-      state.raw.dayzMods = this.readDayzMods(Buffer.from(dayZPayload))
-    }
-  }
-
-  readDayzMods (/** Buffer */ buffer) {
-    if (!buffer.length) {
-      return {}
-    }
-
-    this.logger.debug('DAYZ BUFFER')
-    this.logger.debug(buffer)
-
-    const reader = this.reader(buffer)
-    const version = this.readDayzByte(reader)
-    const overflow = this.readDayzByte(reader)
-    const dlc1 = this.readDayzByte(reader)
-    const dlc2 = this.readDayzByte(reader)
-    this.logger.debug('version ' + version)
-    this.logger.debug('overflow ' + overflow)
-    this.logger.debug('dlc1 ' + dlc1)
-    this.logger.debug('dlc2 ' + dlc2)
-    if (dlc1) {
-      const unknown = this.readDayzUint(reader, 4) // ?
-      this.logger.debug('unknown ' + unknown)
-    }
-    if (dlc2) {
-      const unknown = this.readDayzUint(reader, 4) // ?
-      this.logger.debug('unknown ' + unknown)
-    }
-    const mods = []
-    mods.push(...this.readDayzModsSection(reader, true))
-    mods.push(...this.readDayzModsSection(reader, false))
-    this.logger.debug('dayz buffer rest:', reader.rest())
-    return mods
-  }
-
-  readDayzModsSection (/** Reader */ reader, withHeader) {
-    const out = []
-    const count = this.readDayzByte(reader)
-    this.logger.debug('dayz mod section withHeader:' + withHeader + ' count:' + count)
-    for (let i = 0; i < count; i++) {
-      if (reader.done()) break
-      const mod = {}
-      if (withHeader) {
-        mod.unknown = this.readDayzUint(reader, 4) // ?
-
-        // For some reason this is 4 on all of them, but doesn't exist on the last one? but only sometimes?
-        const offset = reader.offset()
-        const flag = this.readDayzByte(reader)
-        if (flag !== 4) reader.setOffset(offset)
-
-        mod.workshopId = this.readDayzUint(reader, 4)
-      }
-      mod.title = this.readDayzString(reader)
-      this.logger.debug(mod)
-      out.push(mod)
-    }
-    return out
-  }
-
-  readDayzUint (reader, bytes) {
-    const out = []
-    for (let i = 0; i < bytes; i++) {
-      out.push(this.readDayzByte(reader))
-    }
-    const buf = Buffer.from(out)
-    const r2 = this.reader(buf)
-    return r2.uint(bytes)
-  }
-
-  readDayzByte (reader) {
-    const byte = reader.uint(1)
-    if (byte === 1) {
-      const byte2 = reader.uint(1)
-      if (byte2 === 1) return 1
-      if (byte2 === 2) return 0
-      if (byte2 === 3) return 0xff
-      return 0 // ?
-    }
-    return byte
-  }
-
-  readDayzString (reader) {
-    const length = this.readDayzByte(reader)
-    const out = []
-    for (let i = 0; i < length; i++) {
-      out.push(this.readDayzByte(reader))
-    }
-    return Buffer.from(out).toString('utf8')
   }
 
   async cleanup (/** Results */ state) {