basic setup

author: Emile <hanemile@protonmail.com> 2019-10-06 23:52:09 +0200
committer: Emile <hanemile@protonmail.com> 2019-10-06 23:52:09 +0200
commit: 72e86f736dca3b2da6f200d91a459c8faab3e288 (patch)
tree: 04780e81f2a244cd12f61d2cb999800fb64111d2
parent: 4444639dcb256b2928abc5f1e925f2529797c1f1 (diff)
9 files changed, 334 insertions, 0 deletions
diff --git a/Dockerfile b/Dockerfile
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--- /dev/null
+++ b/Dockerfile
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+FROM golang
+
+# Install libraries
+RUN go get \
+	github.com/gorilla/mux \
+
+# Create workdir
+RUN mkdir /workdir
+WORKDIR /workdir
+
+# Copy our sources
+COPY src /workdir/src
+COPY hosted /workdir/hosted
+# and build them
+RUN go build -o /workdir/register src/*.go
+
+ENTRYPOINT [ "/workdir/register" ]
diff --git a/hosted/background.png b/hosted/background.png
new file mode 100644
index 0000000..3654637
--- /dev/null
+++ b/hosted/background.png
Binary files differdiff --git a/hosted/index.html b/hosted/index.html
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+++ b/hosted/index.html
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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+        <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
+    </head>
+    <body>
+        <nav class="navbar navbar-expand-md navbar-dark bg-dark mb-4">
+            <a class="navbar-brand" href="/">Companion</a>
+            <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
+                <span class="navbar-toggler-icon"></span>
+            </button>
+            <div class="collapse navbar-collapse" id="navbarCollapse">
+                <ul class="navbar-nav mr-auto">
+                    <li class="nav-item active">
+                        <a class="nav-link" href="/">Home <span class="sr-only">(current)</span></a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="/register">Register</a>
+                    </li>
+                </ul>
+            </div>
+        </nav>
+        <main class="container" role="main">
+            <div class="jumbotron">
+                <h1 class="display-4">Hello.</h1>
+                <h3>I'm here to register you.</h3>
+                <p>I was created so you can obtain a companion the most simple
+                way possible.</p>
+                <p>"What is a companion?" you might ask yourself. Well, your
+                companion is there to start, stop and reset challenge containers
+                for you. It also takes your flags checking if they are valid or
+                not.
+                <p>Please note that I'm not in scope. Please don't hack me.
+                However, if you accidentally find bugs in my code, ... report
+                them!</p>
+                <hr>
+                <a class="btn btn-primary btn-lg" href="/register"
+                    role="button">Get a companion!</a>
+            </div>
+        </main>
+    </body>
+</html>
diff --git a/hosted/login.html b/hosted/login.html
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--- /dev/null
+++ b/hosted/login.html
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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+        <style type="text/css">
+            body {
+                background-image: url("/files/background.png");
+            }
+            .vertical-center {
+                min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
+                min-height: 100vh; /* These two lines are counted as one :-)       */
+
+                display: flex;
+                align-items: center;
+            }
+        </style>
+    </head>
+    <body>
+        <div class="container">
+            <div class="row">
+                <div class="col"></div>
+                <div class="col">
+                    <div class="vertical-center">
+                        <div class="card card-body">
+                            <h1>
+                                Companion
+                            </h1>
+
+                            <form method="POST">
+                                <div class="form-group">
+                                    <label for="nameInput">Name</label>
+                                    <input type="text" class="form-control" id="nameInput" placeholder="Name" name="username" autofocus>
+                                </div>
+                                <div class="form-group">
+                                    <label for="accesscodeInput">Access Code</label>
+                                    <input type="password" class="form-control" id="accesscodeInput" placeholder="Access Code" name="accesscode">
+                                </div>
+                                <button type="submit" class="btn btn-primary">Login</button>
+                            </form>
+                        </div>
+                    </div>
+                </div>
+                <div class="col"></div>
+            </div>
+        </div>
+    </body>
+</html>
diff --git a/hosted/register.html b/hosted/register.html
new file mode 100644
index 0000000..373b64e
--- /dev/null
+++ b/hosted/register.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
+        <style type="text/css">
+            body {
+                background-image: url("/files/background.png");
+            }
+            .vertical-center {
+                min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
+                min-height: 100vh; /* These two lines are counted as one :-)       */
+
+                display: flex;
+                align-items: center;
+            }
+        </style>
+    </head>
+    <body>
+        <div class="container">
+            <div class="row">
+                <div class="col"></div>
+                <div class="col">
+                    <div class="vertical-center">
+                        <div class="card card-body">
+                            <h1>
+                                Obtain a Companion
+                            </h1>
+
+                            <form method="POST">
+                                <div class="form-group">
+                                    <label for="nameInput">Please enter your
+                                        Name:</label>
+                                    <input type="text" class="form-control" id="nameInput" placeholder="Name" name="username" autofocus>
+                                </div>
+                                <button type="submit" class="btn btn-primary">Proceed</button>
+                            </form>
+                        </div>
+                    </div>
+                </div>
+                <div class="col"></div>
+            </div>
+        </div>
+    </body>
+</html>
diff --git a/src/access.go b/src/access.go
new file mode 100644
index 0000000..e43d5aa
--- /dev/null
+++ b/src/access.go
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+package main
+
+import "fmt"
+
+func newAccessCode() string {
+	return fmt.Sprintf("%d", 4)
+}
diff --git a/src/docker.go b/src/docker.go
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--- /dev/null
+++ b/src/docker.go
@@ -0,0 +1,69 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/network"
+	"github.com/docker/docker/client"
+)
+
+const (
+	fixedDockerVersion = "1.38"
+)
+
+var (
+	dockerCtx context.Context
+	dockerCLI *client.Client
+)
+
+func setupContext() {
+	if dockerCtx == nil {
+		dockerCtx = context.Background()
+	}
+}
+
+func setupDockerCLI() (err error) {
+	os.Setenv("DOCKER_API_VERSION", "1.27")
+	if dockerCLI == nil {
+		dockerCLI, err = client.NewEnvClient()
+	}
+	return err
+}
+
+func spawnCompanion(username string) string {
+	log.Println("Spwaning a new companion container")
+	// setup the context and the docker cli connection
+	setupContext()
+	setupDockerCLI()
+
+	Config := &container.Config{
+		// docker socket
+		// companion seed
+		Image: "circus-companion:latest",
+		//
+		// username
+		// accesscode
+		// sessionsalt
+		// vpnremote address
+		// vpnrempte port
+		Cmd: []string{"-username", username, "-accesscode", accesscode},
+	}
+
+	HostConfig := &container.HostConfig{
+		// ports (nat.PortMap)
+	}
+
+	NetworkingConfig := &network.NetworkingConfig{
+		// network
+	}
+
+	_, err := dockerCLI.ContainerCreate(dockerCtx, Config, HostConfig, NetworkingConfig, "")
+	if err != nil {
+		panic(err)
+	}
+
+	return accesscode
+}
diff --git a/src/http.go b/src/http.go
new file mode 100644
index 0000000..a9b4240
--- /dev/null
+++ b/src/http.go
@@ -0,0 +1,86 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+
+	"github.com/gorilla/mux"
+)
+
+var (
+	port      *int     // port the http server listens on
+	usernames []string // list of usernames
+)
+
+func registerHTTPFlags() {
+	port = flag.Int("port", 8081, "The port the http server should listen on")
+}
+
+func setupHTTPServer() http.Server {
+	r := mux.NewRouter()
+
+	r.HandleFunc("/", indexHandler)
+	r.HandleFunc("/register", registerGetHandler).Methods("GET")
+	r.HandleFunc("/register", registerPostHandler).Methods("POST")
+
+	return http.Server{
+		Addr:    fmt.Sprintf("0.0.0.0:%d", *port),
+		Handler: r,
+	}
+}
+
+// Host of the index file
+func indexHandler(w http.ResponseWriter, r *http.Request) {
+	readFileToReponse(w, "/index.html")
+}
+
+// Read register page
+func registerGetHandler(w http.ResponseWriter, r *http.Request) {
+	readFileToReponse(w, "/register.html")
+}
+
+// Process a registration
+func registerPostHandler(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+
+	username := r.Form.Get("username")
+
+	// test if the username has already been chosen
+	if !isUniq(username) {
+		w.Write([]byte("Username has already been taken."))
+		return
+	}
+
+	// add the new username to the list of usernames
+	usernames = append(usernames, username)
+
+	// generate a new accesscode
+	accesscode := newAccessCode()
+
+	// redirect the user to the front page
+	http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
+}
+
+func isUniq(username string) bool {
+	for _, user := range usernames {
+		if username == user {
+			return false
+		}
+	}
+	return true
+}
+
+func readFileToReponse(w http.ResponseWriter, path string) {
+	requestedFile := strings.Replace(path, "..", "", -1)
+
+	contents, readError := ioutil.ReadFile(fmt.Sprintf("hosted/%s", requestedFile))
+
+	if readError != nil {
+		w.Write([]byte(fmt.Sprintf("unable to read %s", requestedFile)))
+	} else {
+		w.Write([]byte(contents))
+	}
+}
diff --git a/src/main.go b/src/main.go
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--- /dev/null
+++ b/src/main.go
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+package main
+
+import (
+	"flag"
+	"log"
+)
+
+func main() {
+	// Set up flags
+	registerHTTPFlags()
+	flag.Parse()
+
+	// Set up the http server
+	log.Printf("Running the HTTP server on port %d", *port)
+	httpServer := setupHTTPServer()
+
+	log.Fatalln(httpServer.ListenAndServe())
+}
author	Emile <hanemile@protonmail.com>	2019-10-06 23:52:09 +0200
committer	Emile <hanemile@protonmail.com>	2019-10-06 23:52:09 +0200
commit	72e86f736dca3b2da6f200d91a459c8faab3e288 (patch)
tree	04780e81f2a244cd12f61d2cb999800fb64111d2
parent	4444639dcb256b2928abc5f1e925f2529797c1f1 (diff)