From 98393c7b5822dc6f67d1483a42452a634520227f Mon Sep 17 00:00:00 2001
From: Xe Iaso <xe@tailscale.com>
Date: Thu, 12 Jan 2023 21:01:01 +0000
Subject: [PATCH] show help page

Signed-off-by: Xe Iaso <xe@tailscale.com>
---
 cmd/web/main.go             | 22 +++++++++++++++++++++-
 cmd/web/static/css/xess.css |  7 +++++--
 cmd/web/tmpl/help.tmpl      | 28 ++++++++++++++++++++++++++++
 cmd/web/tmpl/showpaste.tmpl |  3 +--
 4 files changed, 55 insertions(+), 5 deletions(-)
 create mode 100644 cmd/web/tmpl/help.tmpl

diff --git a/cmd/web/main.go b/cmd/web/main.go
index 836d460..cf0bb39 100644
--- a/cmd/web/main.go
+++ b/cmd/web/main.go
@@ -89,6 +89,25 @@ func (s *Server) TailnetIndex(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func (s *Server) TailnetHelp(w http.ResponseWriter, r *http.Request) {
+	ui, err := upsertUserInfo(r.Context(), s.db, s.lc, r.RemoteAddr)
+	if err != nil {
+		s.ShowError(w, r, err, http.StatusInternalServerError)
+		return
+	}
+
+	err = s.tmpls.ExecuteTemplate(w, "help.tmpl", struct {
+		UserInfo *tailcfg.UserProfile
+		Title    string
+	}{
+		UserInfo: ui.UserProfile,
+		Title:    "Help",
+	})
+	if err != nil {
+		log.Printf("%s: %v", r.RemoteAddr, err)
+	}
+}
+
 func (s *Server) NotFound(w http.ResponseWriter, r *http.Request) {
 	s.tmpls.ExecuteTemplate(w, "notfound.tmpl", struct {
 		UserInfo *tailcfg.UserProfile
@@ -185,7 +204,7 @@ VALUES
 		w.WriteHeader(http.StatusOK)
 		fmt.Fprintf(w, "https://%s/paste/%s", s.httpsURL, id)
 	default:
-		http.Redirect(w, r, fmt.Sprintf("https://%s/paste/%s", s.httpsURL, id), http.StatusSeeOther)
+		http.Redirect(w, r, fmt.Sprintf("https://%s/paste/%s", s.httpsURL, id), http.StatusCreated)
 	}
 
 }
@@ -475,6 +494,7 @@ func main() {
 	tailnetMux.HandleFunc("/paste/list", srv.TailnetPasteIndex)
 	tailnetMux.HandleFunc("/api/post", srv.TailnetSubmitPaste)
 	tailnetMux.HandleFunc("/", srv.TailnetIndex)
+	tailnetMux.HandleFunc("/help", srv.TailnetHelp)
 
 	funnelMux := http.NewServeMux()
 	funnelMux.Handle("/static/", http.FileServer(http.FS(staticFiles)))
diff --git a/cmd/web/static/css/xess.css b/cmd/web/static/css/xess.css
index 4a37739..b9a0900 100644
--- a/cmd/web/static/css/xess.css
+++ b/cmd/web/static/css/xess.css
@@ -2,8 +2,10 @@
   --background-color: 0;
   --text-color: 43;
   --accent-color: 344;
+  --font-family: "OpenDyslexic", sans-serif;
+  --mono-font-family: "OpenDyslexicMono", monospace;
 
-  --width: 80ch;
+  --width: 45rem;
   --padding: 0;
     
   --selection: hsla(var(--accent-color), 80%, 30%, 100%);
@@ -31,7 +33,7 @@
 }
 
 main {
-  font-family: monospace, monospace;
+  font-family: var(--font-family);
   max-width: var(--width);
   padding: var(--padding);
   margin: auto;
@@ -56,6 +58,7 @@ pre {
   background-color: var(--pre-background);
   padding: 1em;
   border: 0;
+  font-family: var(--mono-font-family);
 }
 
 a, a:active, a:visited {
diff --git a/cmd/web/tmpl/help.tmpl b/cmd/web/tmpl/help.tmpl
new file mode 100644
index 0000000..b84c6e1
--- /dev/null
+++ b/cmd/web/tmpl/help.tmpl
@@ -0,0 +1,28 @@
+{{template "header" .}}
+
+<p>Never seen this service before? Want to know how to use it? This page will help you learn more about your tailnet's pastebin tool.</p>
+
+<ul>
+    <li><a href="#cli">Command-line tool</a></li>
+    <li><a href="#api">API</a></li>
+</ul>
+
+<h2 id="cli">Command-line tool</h2>
+
+<p>You can pipe commands or paste files to the pastebin using the command <code>tailpaste</code>. You can install it by installing the <a href="https://go.dev">Go</a> compiler toolkit and then running this command:</p>
+
+<pre><code>go get github.com/tailscale/paste/cmd/tailpaste@main</code></pre>
+
+<p>Once it is installed, invoke it with the command <code>tailpaste</code>:</p>
+
+<pre><code>tailpaste ./foo.txt</code></pre>
+
+<p>and the program will print a URL that you can share with your team. You can also pipe the output from any command to it:</p>
+
+<pre><code>go test | tailpaste -n go-test.txt</code></pre>
+
+<h2 id="api">API</h2>
+
+<p>The pastebin service has an API call that 
+
+{{template "footer" .}}
diff --git a/cmd/web/tmpl/showpaste.tmpl b/cmd/web/tmpl/showpaste.tmpl
index 7d2aeed..f4a932c 100644
--- a/cmd/web/tmpl/showpaste.tmpl
+++ b/cmd/web/tmpl/showpaste.tmpl
@@ -4,8 +4,7 @@
 
 <p>Created at {{.CreatedAt}} by {{.PasterDisplayName}}</p>
 
-<pre><code>
-{{.Data}}
+<pre><code>{{.Data}}
 </code></pre>
 
 <a href="/paste/{{.ID}}">Permalink</a> - <a href="/paste/{{.ID}}/dl">Download</a> - <a href="/paste/{{.ID}}/raw">Raw</a>