From 4b556fb2d405595a31764604ce41b19a34d1e91e Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Wed, 14 Aug 2024 15:53:09 +0200
Subject: [PATCH] Add channel editing interface

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 botEditor.go                          |  12 +-
 src/components/channelOverview.vue    | 220 ++++++++++++++++++++++++++
 src/components/channelPermissions.vue | 201 +++++++++++++++++++++++
 src/langs/en.json                     |  23 +++
 src/main.ts                           |   8 +
 src/router.ts                         |  11 +-
 6 files changed, 466 insertions(+), 9 deletions(-)
 create mode 100644 src/components/channelOverview.vue
 create mode 100644 src/components/channelPermissions.vue

diff --git a/botEditor.go b/botEditor.go
index f2e210b..a6c0d44 100644
--- a/botEditor.go
+++ b/botEditor.go
@@ -3,21 +3,23 @@ package main
 import (
 	"fmt"
 	"net/http"
-
-	"github.com/pkg/errors"
+	"strings"
 )
 
 func getAuthorizationFromRequest(r *http.Request) (string, error) {
-	token := r.Header.Get("Authorization")
-	if token == "" {
+	_, token, hadPrefix := strings.Cut(r.Header.Get("Authorization"), " ")
+	if !hadPrefix {
 		return "", fmt.Errorf("no authorization provided")
 	}
 
 	_, user, _, _, err := editorTokenService.ValidateLoginToken(token) //nolint:dogsled // Required at other places
+	if err != nil {
+		return "", fmt.Errorf("getting authorized user: %w", err)
+	}
 
 	if user == "" {
 		user = "API-User"
 	}
 
-	return user, errors.Wrap(err, "getting authorized user")
+	return user, nil
 }
diff --git a/src/components/channelOverview.vue b/src/components/channelOverview.vue
new file mode 100644
index 0000000..51b9a1f
--- /dev/null
+++ b/src/components/channelOverview.vue
@@ -0,0 +1,220 @@
+<template>
+  <div class="container my-3">
+    <div class="row justify-content-center mb-3">
+      <div class="col-6">
+        <div class="input-group">
+          <span class="input-group-text">
+            <i class="fas fa-hashtag fa-fw me-1" />
+          </span>
+          <input
+            v-model="inputAddChannel.text"
+            type="text"
+            :class="inputAddChannelClasses"
+            @keypress.enter="addChannel"
+          >
+          <button
+            class="btn btn-success"
+            :disabled="!inputAddChannel.valid"
+            @click="addChannel"
+          >
+            <i class="fas fa-plus fa-fw me-1" />
+            {{ $t('channel.btnAdd') }}
+          </button>
+        </div>
+      </div>
+    </div>
+    <div class="row justify-content-center">
+      <div class="col">
+        <table class="table">
+          <thead>
+            <tr>
+              <th>{{ $t("channel.table.colChannel") }}</th>
+              <th>{{ $t("channel.table.colPermissions") }}</th>
+              <th />
+            </tr>
+          </thead>
+          <tbody>
+            <tr
+              v-for="channel in channels"
+              :key="channel.name"
+            >
+              <td class="align-content-center">
+                <i class="fas fa-hashtag fa-fw me-1" />
+                {{ channel.name }}
+              </td>
+              <td class="align-content-center">
+                <i
+                  v-if="channel.numScopesGranted === 0"
+                  class="fas fa-triangle-exclamation fa-fw me-1 text-danger"
+                  :title="$t('channel.table.titleNoPermissions')"
+                />
+                <i
+                  v-else-if="channel.numScopesGranted < numExtendedScopes"
+                  class="fas fa-triangle-exclamation fa-fw me-1 text-warning"
+                  :title="$t('channel.table.titlePartialPermissions')"
+                />
+                <i
+                  v-else
+                  class="fas fa-circle-check fa-fw me-1 text-success"
+                  :title="$t('channel.table.titleAllPermissions')"
+                />
+                {{ $t('channel.table.textPermissions', {
+                  avail: numExtendedScopes,
+                  granted: channel.numScopesGranted
+                }) }}
+              </td>
+              <td class="text-end">
+                <div class="btn-group btn-group-sm">
+                  <RouterLink
+                    :to="{ name:'channelPermissions', params: { channel: channel.name } }"
+                    class="btn btn-secondary"
+                  >
+                    <i class="fas fa-pencil-alt fa-fw" />
+                  </RouterLink>
+                  <button
+                    class="btn btn-danger"
+                    @click="removeChannel(channel.name)"
+                  >
+                    <i class="fas fa-minus fa-fw" />
+                  </button>
+                </div>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script lang="ts">
+import BusEventTypes from '../helpers/busevents'
+import { defineComponent } from 'vue'
+import { successToast } from '../helpers/toasts'
+
+export default defineComponent({
+  computed: {
+    channels(): Array<any> {
+      return this.generalConfig.channels?.map((name: string) => ({
+        name,
+        numScopesGranted: (this.generalConfig.channel_scopes[name] || [])
+          .filter((scope: string) => Object.keys(this.authURLs.available_extended_scopes).includes(scope))
+          .length,
+      }))
+        .sort((a: any, b: any) => a.name.localeCompare(b.name))
+    },
+
+    inputAddChannelClasses(): string {
+      const classes = ['form-control']
+
+      if (this.inputAddChannel.valid) {
+        classes.push('is-valid')
+      } else if (this.inputAddChannel.text) {
+        classes.push('is-invalid')
+      }
+
+      return classes.join(' ')
+    },
+
+    numExtendedScopes(): number {
+      return Object.keys(this.authURLs.available_extended_scopes || {}).length
+    },
+  },
+
+  data() {
+    return {
+      authURLs: {} as any,
+      generalConfig: {} as any,
+      inputAddChannel: {
+        text: '',
+        valid: false,
+      },
+    }
+  },
+
+  methods: {
+    /**
+     * Adds the channel entered into the input field to the list
+     */
+    addChannel(): Promise<void> | undefined {
+      if (!this.inputAddChannel.valid) {
+        return
+      }
+
+      const channel = this.inputAddChannel.text
+
+      return this.updateGeneralConfig({
+        ...this.generalConfig,
+        channels: [
+          ...this.generalConfig.channels.filter((chan: string) => chan !== channel),
+          channel,
+        ],
+      })
+        ?.then(() => {
+          this.inputAddChannel.text = ''
+          this.bus.emit(BusEventTypes.Toast, successToast(this.$t('channel.toastChannelAdded')))
+        })
+    },
+
+    /**
+     * Fetches auth-URLs from the backend
+     */
+    fetchAuthURLs(): Promise<void> | undefined {
+      return this.$root?.fetchJSON('config-editor/auth-urls')
+        .then((data: any) => {
+          this.authURLs = data
+        })
+    },
+
+    /**
+     * Fetches the general config object from the backend
+     */
+    fetchGeneralConfig(): Promise<void> | undefined {
+      return this.$root?.fetchJSON('config-editor/general')
+        .then((data: any) => {
+          this.generalConfig = data
+        })
+    },
+
+    /**
+     * Tells backend to remove a channel
+     */
+    removeChannel(channel: string): Promise<void> | undefined {
+      return this.updateGeneralConfig({
+        ...this.generalConfig,
+        channels: this.generalConfig.channels.filter((chan: string) => chan !== channel),
+      })
+        ?.then(() => this.bus.emit(BusEventTypes.Toast, successToast(this.$t('channel.toastChannelRemoved'))))
+    },
+
+    /**
+     * Writes general config back to backend
+     *
+     * @param config Configuration object to write (MUST contain all config)
+     */
+    updateGeneralConfig(config: any): Promise<void> | undefined {
+      return this.$root?.fetchJSON('config-editor/general', {
+        body: JSON.stringify(config),
+        method: 'PUT',
+      })
+    },
+  },
+
+  mounted() {
+    // Reload config after it changed
+    this.bus.on(BusEventTypes.ConfigReload, () => this.fetchGeneralConfig())
+
+    // Do initial fetches
+    this.fetchAuthURLs()
+    this.fetchGeneralConfig()
+  },
+
+  name: 'TwitchBotEditorChannelOverview',
+
+  watch: {
+    'inputAddChannel.text'(to) {
+      this.inputAddChannel.valid = to.match(/^[a-zA-Z0-9_]{4,25}$/)
+    },
+  },
+})
+</script>
diff --git a/src/components/channelPermissions.vue b/src/components/channelPermissions.vue
new file mode 100644
index 0000000..299e1a7
--- /dev/null
+++ b/src/components/channelPermissions.vue
@@ -0,0 +1,201 @@
+<template>
+  <div class="container my-3">
+    <div class="row justify-content-center mb-3">
+      <div class="col-8">
+        <p v-html="$t('channel.permissionStart', { channel })" />
+        <div
+          v-for="perm in permissions"
+          :key="perm.scope"
+          class="form-check form-switch"
+        >
+          <input
+            :id="`switch${perm.scope}`"
+            v-model="granted[perm.scope]"
+            class="form-check-input"
+            type="checkbox"
+            role="switch"
+          >
+          <label
+            class="form-check-label"
+            :for="`switch${perm.scope}`"
+          >{{ perm.description }}</label>
+        </div>
+        <div class="form-check form-switch mt-2">
+          <input
+            id="switch_all"
+            v-model="allPermissions"
+            class="form-check-input"
+            type="checkbox"
+            role="switch"
+          >
+          <label
+            class="form-check-label"
+            for="switch_all"
+          >{{ $t('channel.permissionsAll') }}</label>
+        </div>
+        <div class="input-group mt-4">
+          <input
+            type="text"
+            class="form-control"
+            :value="permissionsURL || ''"
+            :disabled="!permissionsURL"
+            readonly
+          >
+          <button
+            ref="copyBtn"
+            class="btn btn-primary"
+            :disabled="!authURLs?.update_bot_token"
+            @click="copyAuthURL"
+          >
+            <i class="fas fa-clipboard fa-fw" />
+          </button>
+        </div>
+      </div>
+      <div class="col-4">
+        <div class="card">
+          <div class="card-header">
+            <i class="fas fa-circle-info fa-fw me-1" />
+            {{ $t('channel.permissionInfoHeader') }}
+          </div>
+          <div class="card-body">
+            <p v-html="$t('channel.permissionIntro')" />
+            <ul>
+              <li
+                v-for="(bpt, idx) in $tm('channel.permissionIntroBullets')"
+                :key="`idx${idx}`"
+              >
+                {{ bpt }}
+              </li>
+            </ul>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script lang="ts">
+import BusEventTypes from '../helpers/busevents'
+import { defineComponent } from 'vue'
+
+export default defineComponent({
+  computed: {
+    allPermissions: {
+      get(): boolean {
+        return this.extendedScopeNames
+          .filter((scope: string) => !this.granted[scope])
+          .length === 0
+      },
+
+      set(all: boolean): void {
+        this.granted = Object.fromEntries(this.extendedScopeNames
+          .map((scope: string) => [scope, all]))
+      },
+    },
+
+    extendedScopeNames(): Array<string> {
+      return Object.entries(this.authURLs.available_extended_scopes || {})
+        .map(e => e[0])
+    },
+
+    permissions(): Array<any> {
+      return Object.entries(this.authURLs.available_extended_scopes || {}).map(e => ({
+        description: e[1],
+        scope: e[0],
+      }))
+    },
+
+    permissionsURL(): string {
+      if (!this.authURLs.update_channel_scopes) {
+        return ''
+      }
+
+      const scopes = Object.entries(this.granted).filter(e => e[1])
+        .map(e => e[0])
+
+      const u = new URL(this.authURLs.update_channel_scopes)
+      u.searchParams.set('scope', scopes.join(' '))
+      return u.toString()
+    },
+  },
+
+  data() {
+    return {
+      authURLs: {} as any,
+      generalConfig: {} as any,
+      granted: {} as any,
+    }
+  },
+
+  methods: {
+    /**
+     * Copies auth-url for the bot into clipboard and gives user feedback
+     * by colorizing copy-button for a short moment
+     */
+    copyAuthURL(): void {
+      navigator.clipboard.writeText(this.permissionsURL)
+        .then(() => {
+          const btn = this.$refs.copyBtn as Element
+          btn.classList.replace('btn-primary', 'btn-success')
+          window.setTimeout(() => btn.classList.replace('btn-success', 'btn-primary'), 2500)
+        })
+    },
+
+    /**
+     * Fetches auth-URLs from the backend
+     */
+    fetchAuthURLs(): Promise<void> | undefined {
+      return this.$root?.fetchJSON('config-editor/auth-urls')
+        .then((data: any) => {
+          this.authURLs = data
+        })
+    },
+
+    /**
+     * Fetches the general config object from the backend
+     */
+    fetchGeneralConfig(): Promise<void> | undefined {
+      return this.$root?.fetchJSON('config-editor/general')
+        .then((data: any) => {
+          this.generalConfig = data
+        })
+    },
+
+    /**
+     * Loads the granted scopes into the object for easier display
+     * of the permission switches
+     */
+    loadScopes(): void {
+      this.granted = Object.fromEntries((this.generalConfig.channel_scopes[this.channel] || []).map((scope: string) => [scope, true]))
+    },
+  },
+
+  mounted() {
+    // Reload config after it changed
+    this.bus.on(BusEventTypes.ConfigReload, () => this.fetchGeneralConfig()?.then(() => this.loadScopes()))
+
+    // Socket-reconnect could mean we need new auth-urls as the state
+    // may have changed due to bot-restart
+    this.bus.on(BusEventTypes.NotifySocketConnected, () => this.fetchAuthURLs())
+
+    // Do initial fetches
+    this.fetchAuthURLs()
+    this.fetchGeneralConfig()?.then(() => this.loadScopes())
+  },
+
+  name: 'TwitchBotEditorChannelPermissions',
+
+  props: {
+    channel: {
+      required: true,
+      type: String,
+    },
+  },
+
+  watch: {
+    channel() {
+      this.loadScopes()
+    },
+  },
+})
+</script>
diff --git a/src/langs/en.json b/src/langs/en.json
index a6e931b..12c0c13 100644
--- a/src/langs/en.json
+++ b/src/langs/en.json
@@ -9,6 +9,29 @@
     ],
     "heading": "Updating Bot-Authorization"
   },
+  "channel": {
+    "btnAdd": "Add Channel",
+    "permissionsAll": "…do all of the above!",
+    "permissionInfoHeader": "Explanation",
+    "permissionIntro": "In order to access non-public information as channel-point redemptions or take actions limited to the channel owner the bot needs additional permissions. The <strong>owner</strong> of the channel needs to grant those!",
+    "permissionIntroBullets": [
+      "Select permissions on the left side",
+      "Copy the URL provided below",
+      "Pass the URL to the channel owner and tell them to open it with their personal account logged in",
+      "The bot will display a message containing the updated account"
+    ],
+    "permissionStart": "For <strong>#{channel}</strong> the bot should be able to&hellip;",
+    "table": {
+      "colChannel": "Channel",
+      "colPermissions": "Permissions",
+      "textPermissions": "{granted} of {avail} granted",
+      "titleAllPermissions": "Bot can use all available extra features",
+      "titleNoPermissions": "Bot can not use features aside of chatting",
+      "titlePartialPermissions": "Bot can use some extra features"
+    },
+    "toastChannelAdded": "Channel added",
+    "toastChannelRemoved": "Channel removed"
+  },
   "dashboard": {
     "activeRaffles": {
       "caption": "Active",
diff --git a/src/main.ts b/src/main.ts
index f8e5424..d7ef905 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -114,6 +114,14 @@ const app = createApp({
 
     parseResponseFromJSON(resp: Response): Promise<any> {
       this.check403(resp)
+
+      if (resp.status === 204) {
+        // We can't expect content here
+        return new Promise(resolve => {
+          resolve({})
+        })
+      }
+
       return resp.json()
     },
 
diff --git a/src/router.ts b/src/router.ts
index 13641c8..e991797 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -1,6 +1,8 @@
 import { createRouter, createWebHashHistory, type RouteRecordRaw } from 'vue-router'
 
 import BothAuth from './components/botauth.vue'
+import ChannelOverview from './components/channelOverview.vue'
+import ChannelPermissions from './components/channelPermissions.vue'
 import Dashboard from './components/dashboard.vue'
 
 const routes = [
@@ -8,23 +10,24 @@ const routes = [
 
   // General settings
   { component: BothAuth, name: 'botAuth', path: '/bot-auth' },
-  { component: {}, name: 'channels', path: '/channels' },
+  { component: ChannelOverview, name: 'channels', path: '/channels' },
+  { component: ChannelPermissions, name: 'channelPermissions', path: '/channels/:channel/permissions', props: true },
   { component: {}, name: 'editors', path: '/editors' },
   { component: {}, name: 'tokens', path: '/tokens' },
 
   // Auto-Messages
   { component: {}, name: 'autoMessagesList', path: '/auto-messages' },
-  { component: {}, name: 'autoMessageEdit', path: '/auto-messages/edit/{id}' },
+  { component: {}, name: 'autoMessageEdit', path: '/auto-messages/edit/:id' },
   { component: {}, name: 'autoMessageNew', path: '/auto-messages/new' },
 
   // Rules
   { component: {}, name: 'rulesList', path: '/rules' },
-  { component: {}, name: 'rulesEdit', path: '/rules/edit/{id}' },
+  { component: {}, name: 'rulesEdit', path: '/rules/edit/:id' },
   { component: {}, name: 'rulesNew', path: '/rules/new' },
 
   // Raffles
   { component: {}, name: 'rafflesList', path: '/raffles' },
-  { component: {}, name: 'rafflesEdit', path: '/raffles/edit/{id}' },
+  { component: {}, name: 'rafflesEdit', path: '/raffles/edit/:id' },
   { component: {}, name: 'rafflesNew', path: '/raffles/new' },
 ] as RouteRecordRaw[]