From ff408df58ba6b7e21b9b0ce387c2fb477b19a53b Mon Sep 17 00:00:00 2001
From: jason
Date: Tue, 30 Dec 2014 22:08:30 -0700
Subject: Basic file saving web server.

---
 src/dossier/wiki/handlers.go | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/dossier/wiki/page.go     | 17 +++++++++++++++++
 src/dossier/wiki/utils.go    | 14 ++++++++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 src/dossier/wiki/handlers.go
 create mode 100644 src/dossier/wiki/page.go
 create mode 100644 src/dossier/wiki/utils.go

diff --git a/src/dossier/wiki/handlers.go b/src/dossier/wiki/handlers.go
new file mode 100644
index 0000000..4f241eb
--- /dev/null
+++ b/src/dossier/wiki/handlers.go
@@ -0,0 +1,44 @@
+package wiki
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func SaveHandler(w http.ResponseWriter, r *http.Request) {
+	var title string = r.URL.Path[len("/save/"):]
+	body := r.FormValue("body")
+	p := &Page{Title: title, Body: []byte(body)}
+	var err error = p.Save()
+	if err != nil {
+		fmt.Fprintf(w, "500: %s", err)
+		return
+	}
+	http.Redirect(w, r, "/view/"+title, http.StatusFound)
+}
+
+func EditHandler(w http.ResponseWriter, r *http.Request) {
+	var title string = r.URL.Path[len("/edit/"):]
+	p, err := loadPage(title)
+	if err != nil {
+		p = &Page{Title: title}
+	}
+	fmt.Fprintf(w, "<h1>Editing %s</h1>"+
+		"<form action=\"/save/%s\" method=\"POST\">"+
+		"<textarea name=\"body\">%s</textarea><br>"+
+		"<input type=\"submit\" value=\"Save\">"+
+		"</form>",
+		p.Title, p.Title, p.Body)
+}
+
+func PageHandler(w http.ResponseWriter, r *http.Request) {
+	var title string = r.URL.Path[len("/view/"):]
+
+	p, err := loadPage(title)
+	if err != nil {
+		http.Redirect(w, r, "/edit/"+title, http.StatusFound)
+		return
+	}
+
+	fmt.Fprintf(w, "<h1>%s</h1><hr>%s", p.Title, p.Body)
+}
diff --git a/src/dossier/wiki/page.go b/src/dossier/wiki/page.go
new file mode 100644
index 0000000..2bf1368
--- /dev/null
+++ b/src/dossier/wiki/page.go
@@ -0,0 +1,17 @@
+package wiki
+
+import (
+	"io/ioutil"
+)
+
+const FILE_EXTENSION string = ".md"
+
+type Page struct {
+	Title string
+	Body  []byte // markdown filled body
+}
+
+func (p *Page) Save() error {
+	filename := p.Title + FILE_EXTENSION
+	return ioutil.WriteFile(filename, p.Body, 0600)
+}
diff --git a/src/dossier/wiki/utils.go b/src/dossier/wiki/utils.go
new file mode 100644
index 0000000..58e98f7
--- /dev/null
+++ b/src/dossier/wiki/utils.go
@@ -0,0 +1,14 @@
+package wiki
+
+import "io/ioutil"
+
+func loadPage(title string) (*Page, error) {
+	var filename string = title + FILE_EXTENSION
+
+	body, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Page{Title: title, Body: body}, nil
+}
-- 
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