Pull forge versions

fclauncher/app.go

@@ -11,20 +11,18 @@ import (
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
-
 const client_id string = "9305aeb8-5ecb-4e7a-b28f-c33aefcfbd8d"
 
 // App struct
 type App struct {
-	Ctx   context.Context
+	Ctx           context.Context
 	PrismLauncher Prism
-	Java JavaManager
-	Instance InstanceManager
-	Modpacks ModpackManager
-	Auth authenticationResp
+	Java          JavaManager
+	Instance      InstanceManager
+	Modpacks      ModpackManager
+	Auth          authenticationResp
 }
 
-
 // NewApp creates a new App application struct
 func NewApp() *App {
 	a := &App{}
@@ -42,16 +40,15 @@ func (a *App) startup(ctx context.Context) {
 
 // Greet returns a greeting for the given name
 
-
 func (a *App) CheckPrerequisites() {
 	a.Status("Querrying Existing Instances")
 	a.Instance.SearchInstances()
 	a.Status("Pulling Modpacks")
 	a.Modpacks.QuerryModpacks()
 	a.Status("Logging in with Microsoft")
-	dir, _ := os.UserConfigDir()	
+	dir, _ := os.UserConfigDir()
 	authenticated := false
-	if _, err := os.Stat(filepath.Join(dir, "FCLauncher", "authentication.json")); err == nil {		
+	if _, err := os.Stat(filepath.Join(dir, "FCLauncher", "authentication.json")); err == nil {
 		f, _ := os.OpenFile(filepath.Join(dir, "FCLauncher", "authentication.json"), os.O_RDONLY, 0755)
 		defer f.Close()
 		data, _ := io.ReadAll(f)

fclauncher/forge.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+)
+
+type Forge struct{}
+
+type ForgeVersion struct {
+	Version string
+	Time    string
+	Url     string
+}
+
+func parseForgeVersions(html string) []ForgeVersion {
+	lines := strings.Split(html, "\n")
+	parsing := false
+	foundTR := false
+	buff := ""
+	versions := []ForgeVersion{}
+	for _, line := range lines {
+		if strings.Contains(line, "<tbody>") {
+			parsing = true
+		} else if strings.Contains(line, "</tbody>") {
+			parsing = false
+		} else if parsing {
+			if strings.Contains(line, "<tr>") {
+				buff = ""
+				foundTR = true
+			} else if strings.Contains(line, "</tr>") {
+				foundTR = false
+				versions = append(versions, parseForgeVersion(buff))
+			} else if foundTR {
+				buff += line + "\n"
+			}
+		}
+	}
+	return versions
+}
+
+func parseForgeVersion(html string) ForgeVersion {
+	lines := strings.Split(html, "\n")
+	version := ForgeVersion{}
+	for ind, line := range lines {
+		if strings.Contains(line, "<td class=\"download-version\">") {
+			version.Version = strings.TrimSpace(lines[ind+1])
+		} else if strings.Contains(line, "<td class=\"download-time\"") {
+			version.Time = strings.Split(strings.Split(line, "<td class=\"download-time\" title=\"")[1], "\">")[0]
+		} else if strings.Contains(line, "https://adfoc.us") && strings.Contains(line, "installer.jar") {
+			version.Url = strings.Split(strings.Split(line, "&url=")[1], "\">")[0]
+		}
+	}
+	return version
+}
+
+func (Forge) GetForgeVersions(mcVersion string) ([]ForgeVersion, error) {
+	resp, err := http.Get(fmt.Sprintf("https://files.minecraftforge.net/net/minecraftforge/forge/index_%s.html", mcVersion))
+	if err != nil {
+		return []ForgeVersion{}, fmt.Errorf("unable to access minecraft forge index: %e", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return []ForgeVersion{}, fmt.Errorf("unable to access minecraft forge index: %s", err)
+	}
+	data, _ := io.ReadAll(resp.Body)
+	return parseForgeVersions(string(data)), nil
+}

fclauncher/frontend/src/Instances.svelte

@@ -3,6 +3,7 @@
 	import {GetVersions} from '../wailsjs/go/main/App.js'
 	import {GetFabricVersions} from '../wailsjs/go/main/Fabric.js'
 	import {GetQuiltVersions} from '../wailsjs/go/main/Quilt.js'
+	import {GetForgeVersions} from '../wailsjs/go/main/Forge.js'
 	import {onMount} from 'svelte'
 	import {loading, addingInstance} from './global'
 	import {slide} from 'svelte/transition'
@@ -17,6 +18,8 @@
 	let fab_versions: string[] = []
 	let quilt_ver: string = ""
 	let quilt_versions: string[] = []
+	let forge_ver: string = ""
+	let forge_versions: string[] = []
 
 	function updateLists(){
 		GetVersions().then((result) => {
@@ -46,6 +49,14 @@
 			})
 			quilt_ver = quilt_versions[0]
 		})
+		GetForgeVersions(pack).then((result) => {
+			forge_versions = []
+			result.forEach((ver) => {
+				forge_versions.push(ver.Version)
+			})
+			forge_ver = forge_versions[0]
+		}).catch(() => { forge_versions = []; forge_ver = "" })
+		
 	
 	}
 
@@ -135,6 +146,12 @@
 						<option value={ver}>{ver}</option>
 					{/each}
 				</select>
+			{:else if loader == "forge"}
+				<select id="forge_ver" bind:value={forge_ver} name="forge_ver">Select Forge Version:
+					{#each forge_versions as ver}
+						<option value={ver}>{ver}</option>
+					{/each}
+				</select>
 			{/if}
 			<br/>
 			<button on:click={install}>Install</button>

fclauncher/frontend/wailsjs/go/main/Forge.d.ts

@@ -0,0 +1,5 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+import {main} from '../models';
+
+export function GetForgeVersions(arg1:string):Promise<Array<main.ForgeVersion>>;

fclauncher/frontend/wailsjs/go/main/Forge.js

@@ -0,0 +1,7 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function GetForgeVersions(arg1) {
+  return window['go']['main']['Forge']['GetForgeVersions'](arg1);
+}

fclauncher/frontend/wailsjs/go/models.ts

@@ -139,6 +139,22 @@ export namespace main {
 		    return a;
 		}
 	}
+	export class ForgeVersion {
+	    Version: string;
+	    Time: string;
+	    Url: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new ForgeVersion(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.Version = source["Version"];
+	        this.Time = source["Time"];
+	        this.Url = source["Url"];
+	    }
+	}
 	export class Instance {
 	    InstanceName: string;
 	    ModpackId: string;

fclauncher/main.go

@@ -33,6 +33,7 @@ func main() {
 			&app.Modpacks,
 			&Fabric{},
 			&Quilt{},
+			&Forge{},
 		},
 	})