Add user login to admin interface

NEWS.md

@@ -2,6 +2,9 @@
 
 This file contains signficant news items for the distillery.
 
+# Login using Distillery Administration (2022-11-23)
+- The admin interface now allows login to individual user accounts
+
 # Showing Statistics (2022-11-16)
 - The distillery nows shows generic statistics on the public homepage 
 - detailed statistics can be found on the admin interface

cmd/info.go

@@ -96,5 +96,10 @@ func (i info) Run(context wisski_distillery.Context) error {
 		context.Printf("- %s (%d bytes)\n", name, len(data))
 	})
 
+	context.Printf("Users: (count %d)\n", len(info.Users))
+	for _, user := range info.Users {
+		context.Printf("- %s\n", user)
+	}
+
 	return nil
 }

internal/dis/component/control/info/html/instance.html

@@ -177,31 +177,34 @@
 </div>
 
 <div class="pure-u-1 pure-u-xl-2-5">
-    <!--
+    <div class="padding">
-                <div class="padding">
+        <div class="overflow">
-                    <div class="overflow">
+            <table class="pure-table pure-table-bordered">
-                        <table class="pure-table pure-table-bordered">
+                <thead>
-                            <thead>
+                    <tr>
-                                <tr>
+                        <th colspan="2">
-                                    <th colspan="2">
+                            Users
-                                        Composer Status
+                        </th>
-                                    </th>
+                    </tr>
-                                </tr>
+                </thead>
-                            </thead>
+                <tbody>
-                            <tbody>
+                    {{ $slug := .Instance.Slug }}
-                                <tr>
+                    {{ range $index, $user := .Info.Users }}
-                                    <td>
+                    <tr>
-                                        ???
+                        <td>
-                                    </td>
+                            <code>{{ $user }}</code>
-                                    <td>
+                        </td>
-                                        ???
+                        <td>
-                                    </td>
+                            <small>
-                                </tr>
+                                <button class="remote-link pure-button pure-button-action" role="link" data-action="login" data-params="{{ $slug }} {{ $user }} ">Login in new window</button>
-                            </tbody>
+                            </small>
-                        </table>
+                        </td>
-                    </div>
+                    </tr>
-                </div>
+                    {{ end }}
-                -->
+                </tbody>
+            </table>
+        </div>
+    </div>
 </div>
 
 <div class="pure-u-1-1">

internal/dis/component/control/info/socket.go

@@ -1,6 +1,9 @@
 package info
 
 import (
+	"encoding/json"
+	"time"
+
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/exporter"
 	"github.com/FAU-CDI/wisski-distillery/internal/wisski"
 	"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
@@ -8,28 +11,48 @@ import (
 	"github.com/tkw1536/goprogram/stream"
 )
 
-type instanceActionFunc = func(info *Info, instance *wisski.WissKI, str stream.IOStream) error
+type InstanceAction struct {
+	NumParams int
 
-var socketInstanceActions = map[string]instanceActionFunc{
+	HandleInteractive func(info *Info, instance *wisski.WissKI, str stream.IOStream, params ...string) error
-	"snapshot": func(info *Info, instance *wisski.WissKI, str stream.IOStream) error {
+	HandleResult      func(info *Info, instance *wisski.WissKI, params ...string) (value any, err error)
-		return info.Exporter.MakeExport(
+}
-			str,
-			exporter.ExportTask{
-				Dest:     "",
-				Instance: instance,
 
-				StagingOnly: false,
+var socketInstanceActions = map[string]InstanceAction{
-			},
+	"snapshot": {
-		)
+		HandleInteractive: func(info *Info, instance *wisski.WissKI, str stream.IOStream, params ...string) error {
+			return info.Exporter.MakeExport(
+				str,
+				exporter.ExportTask{
+					Dest:     "",
+					Instance: instance,
+
+					StagingOnly: false,
+				},
+			)
+		},
 	},
-	"rebuild": func(_ *Info, instance *wisski.WissKI, str stream.IOStream) error {
+	"rebuild": {
-		return instance.Barrel().Build(str, true)
+		HandleInteractive: func(_ *Info, instance *wisski.WissKI, str stream.IOStream, params ...string) error {
+			return instance.Barrel().Build(str, true)
+		},
 	},
-	"update": func(_ *Info, instance *wisski.WissKI, str stream.IOStream) error {
+	"update": {
-		return instance.Drush().Update(str)
+		HandleInteractive: func(_ *Info, instance *wisski.WissKI, str stream.IOStream, params ...string) error {
+			return instance.Drush().Update(str)
+		},
 	},
-	"cron": func(_ *Info, instance *wisski.WissKI, str stream.IOStream) error {
+	"cron": {
-		return instance.Drush().Cron(str)
+		HandleInteractive: func(_ *Info, instance *wisski.WissKI, str stream.IOStream, params ...string) error {
+			return instance.Drush().Cron(str)
+		},
+	},
+	"login": {
+		NumParams: 1,
+		HandleResult: func(_ *Info, instance *wisski.WissKI, params ...string) (any, error) {
+			link, err := instance.Drush().Login(stream.FromNil(), params[0])
+			return link, err
+		},
 	},
 }
 
@@ -47,22 +70,40 @@ func (info *Info) serveSocket(conn httpx.WebSocketConnection) {
 	}
 }
 
-func (info *Info) handleInstanceAction(conn httpx.WebSocketConnection, action instanceActionFunc) {
+var instanceParamsTimeout = time.Second
+
+func (info *Info) handleInstanceAction(conn httpx.WebSocketConnection, action InstanceAction) {
 
 	// read the slug
 	slug, ok := <-conn.Read()
 	if !ok {
-		conn.WriteText("Error reading slug")
+		<-conn.WriteText("Error reading slug")
 		return
 	}
 
 	// resolve the instance
 	instance, err := info.Instances.WissKI(string(slug.Bytes))
 	if err != nil {
-		conn.WriteText("Instance not found")
+		<-conn.WriteText("Instance not found")
 		return
 	}
 
+	// read the parameters
+	params := make([]string, action.NumParams)
+	for i := range params {
+		select {
+		case message, ok := <-conn.Read():
+			if !ok {
+				<-conn.WriteText("Insufficient parameters")
+				return
+			}
+			params[i] = string(message.Bytes)
+		case <-time.After(instanceParamsTimeout):
+			<-conn.WriteText("Timed out reading parameters")
+			return
+		}
+	}
+
 	// build a stream
 	writer := &status.LineBuffer{
 		Line: func(line string) {
@@ -74,13 +115,31 @@ func (info *Info) handleInstanceAction(conn httpx.WebSocketConnection, action in
 
 	str := stream.NewIOStream(writer, writer, nil, 0)
 
-	// and perform the action
+	// handle the interactive action
-	{
+	if action.HandleInteractive != nil {
-		err := action(info, instance, str)
+		err := action.HandleInteractive(info, instance, str, params...)
 		if err != nil {
 			str.EPrintln(err)
 			return
 		}
 		str.Println("done")
 	}
+
+	// handle the result computation
+	if action.HandleResult != nil {
+		result, err := action.HandleResult(info, instance, params...)
+		if err != nil {
+			str.Println("false")
+			return
+		}
+		data, err := json.Marshal(result)
+		if err != nil {
+			str.Println("false")
+			return
+		}
+		data = append(data, "\n"...)
+		str.Println("true")
+		str.Stdout.Write(data)
+	}
+
 }

internal/dis/component/control/static/assets_dist.go

@@ -16,13 +16,13 @@ var AssetsComponentsIndex = Assets{
 
 // AssetsControlIndex contains assets for the 'ControlIndex' entrypoint.
 var AssetsControlIndex = Assets{
-	Scripts: `<script type="module" src="/static/HomeHome.38d394c2.js"></script><script src="/static/HomeHome.38d394c2.js" nomodule="" defer></script><script type="module" src="/static/ControlIndex.6d1d8ee0.js"></script><script src="/static/ControlIndex.03d7b00f.js" nomodule="" defer></script>`,
+	Scripts: `<script type="module" src="/static/HomeHome.38d394c2.js"></script><script src="/static/HomeHome.38d394c2.js" nomodule="" defer></script><script type="module" src="/static/ControlIndex.a72fc239.js"></script><script src="/static/ControlIndex.75d2a312.js" nomodule="" defer></script>`,
 	Styles:  `<link rel="stylesheet" href="/static/HomeHome.a75f04fa.css"><link rel="stylesheet" href="/static/ControlIndex.6d59e220.css"><link rel="stylesheet" href="/static/ControlIndex.6d2ae968.css">`,	
 }
 
 // AssetsControlInstance contains assets for the 'ControlInstance' entrypoint.
 var AssetsControlInstance = Assets{
-	Scripts: `<script nomodule="" defer src="/static/ControlIndex.03d7b00f.js"></script><script type="module" src="/static/ControlIndex.6d1d8ee0.js"></script><script type="module" src="/static/HomeHome.38d394c2.js"></script><script src="/static/HomeHome.38d394c2.js" nomodule="" defer></script><script type="module" src="/static/ControlInstance.66b95713.js"></script><script src="/static/ControlInstance.9cc7166d.js" nomodule="" defer></script>`,
+	Scripts: `<script nomodule="" defer src="/static/ControlIndex.75d2a312.js"></script><script type="module" src="/static/ControlIndex.a72fc239.js"></script><script type="module" src="/static/HomeHome.38d394c2.js"></script><script src="/static/HomeHome.38d394c2.js" nomodule="" defer></script><script type="module" src="/static/ControlInstance.66b95713.js"></script><script src="/static/ControlInstance.9cc7166d.js" nomodule="" defer></script>`,
 	Styles:  `<link rel="stylesheet" href="/static/HomeHome.a75f04fa.css"><link rel="stylesheet" href="/static/ControlIndex.6d59e220.css"><link rel="stylesheet" href="/static/ControlIndex.6d2ae968.css"><link rel="stylesheet" href="/static/ControlInstance.38d394c2.css">`,	
 }
 

internal/dis/component/control/static/src/lib/remote/index.ts

@@ -46,8 +46,8 @@ function makeTextBuffer(target: HTMLElement, scrollContainer: HTMLElement, size:
     return println;
 }
 
-const elements = document.getElementsByClassName('remote-action')
+const remote_action = document.getElementsByClassName('remote-action')
-Array.from(elements).forEach((element) => {
+Array.from(remote_action).forEach((element) => {
     const action = element.getAttribute('data-action') as string;
     const reload = element.hasAttribute('data-force-reload');
     const param = element.getAttribute('data-param') as string | undefined;
@@ -123,3 +123,58 @@ Array.from(elements).forEach((element) => {
         });
     });
 })
+
+const remote_link = document.getElementsByClassName('remote-link')
+Array.from(remote_link).forEach((element) => {
+    const action = element.getAttribute('data-action') as string;
+    const param = element.getAttribute('data-params') as string | undefined;
+    const params = param?.split(" ");
+
+    element.addEventListener('click', function (ev) {
+        ev.preventDefault();
+
+        getValue(action, params).then(v => {
+            window.open(v);
+        }).catch(e => {
+            console.error(e);
+        })
+    });
+})
+
+async function getValue(action: string, params?: Array<string>): Promise<any> {
+    return new Promise((rs, rj) => {
+        let buffer = "";
+        var resolve = function() {
+            const index = buffer.indexOf('\n')
+            if (index < 0) {
+                rj("invalid buffer");
+                return
+            }
+            
+            // check that the server sent back true
+            const ok = buffer.substring(0, index) === 'true';
+            if(!ok) {
+                rj(buffer);
+                return
+            }
+
+            // parse the rest as json
+            const value = JSON.parse(buffer.substring(index+1))
+            rs(value);
+        }
+
+        connectSocket((socket) => {
+            socket.send(action);
+            if (params) {
+                params.forEach(p => socket.send(p))
+            }
+        }, (data) => {
+            buffer += data + "\n";
+        }).then(() => {
+            resolve();
+        }).catch(() => {
+            buffer = "false\n";
+            resolve();
+        });
+    })
+}

internal/status/wisski.go

@@ -36,6 +36,7 @@ type WissKI struct {
 	NoPrefixes   bool              // TODO: Move this into the database
 	Prefixes     []string          // list of prefixes
 	Pathbuilders map[string]string // all the pathbuilders
+	Users        []string          // all the known users
 }
 
 // Statistics holds statistics generated by the WissKI module

internal/wisski/ingredient/php/extras/users.go

@@ -0,0 +1,34 @@
+package extras
+
+import (
+	_ "embed"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/phpx"
+	"github.com/FAU-CDI/wisski-distillery/internal/status"
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient"
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient/php"
+)
+
+type Users struct {
+	ingredient.Base
+
+	PHP *php.PHP
+}
+
+//go:embed users.php
+var usersPHP string
+
+// All returns all known usernames
+func (u *Users) All(server *phpx.Server) (users []string, err error) {
+	err = u.PHP.ExecScript(server, &users, usersPHP, "list_users")
+	return
+}
+
+func (u *Users) Fetch(flags ingredient.FetcherFlags, info *status.WissKI) (err error) {
+	if flags.Quick {
+		return
+	}
+
+	info.Users, _ = u.All(flags.Server)
+	return
+}

internal/wisski/ingredient/php/extras/users.php

@@ -0,0 +1,16 @@
+<?php
+
+use Drupal\user\Entity\User;
+
+/** lists all the users */
+function list_users() {
+
+    $usernames = [];
+    $users = User::loadMultiple(NULL);
+    foreach($users as $user){
+        $name = $user->get('name')->getString();
+        if(empty($name)) continue;
+        $usernames[] = $name;
+    }
+    return $usernames;
+}

internal/wisski/wisski.go

@@ -99,6 +99,7 @@ func (wisski *WissKI) allIngredients() []initFunc {
 		auto[*extras.Prefixes],
 		auto[*extras.Settings],
 		auto[*extras.Pathbuilder],
+		auto[*extras.Users],
 		auto[*extras.Stats],
 
 		// info