Add a pre-filled home page as welcome

Signed-off-by: Knut Ahlers <knut@ahlers.me>

assets.go

@@ -2,6 +2,7 @@
 // sources:
 // frontend/app.js
 // frontend/index.html
+// home.md
 
 package main
 
@@ -16256,6 +16257,57 @@ func bindataFrontendIndexhtml() (*asset, error) {
 	return a, nil
 }
 
+var _bindataHomemd = []byte(
+	"\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\x84\x92\x3f\x6f\xdb\x3c\x10\xc6\x77\x7f\x8a\x0b\xde\x21\x6f\x80\x46\xde" +
+	"\x33\xb6\x43\x6b\xa0\x29\x3a\x04\x08\x0a\x23\x03\x25\x3e\x12\xaf\xa2\x79\x2e\x79\xb4\xe2\x7e\xfa\xe2\x28\x3b\x6d" +
+	"\xa7\x2e\x06\x2c\x1e\x7f\x7c\xfe\xdc\x7f\xf4\x49\x0e\xd8\x6c\x9e\x11\x07\x39\x80\x54\xe8\x2c\x35\x53\xc2\x42\xcf" +
+	"\x3c\xf3\xcd\x66\xf3\x4d\xea\xed\x09\x54\xea\x30\xa0\x94\xb1\xc6\x78\xa6\xa2\x2e\x2b\x3c\x69\x00\x15\x19\x75\x71" +
+	"\x19\xe4\x92\x27\x24\x45\xbe\x1c\x8c\x59\x92\x22\xf9\x8e\xbe\xc8\x62\x58\x1a\x5c\x22\x78\x56\xc2\x09\xf9\xac\x81" +
+	"\xd3\x74\x43\x8f\xee\xdc\x63\x25\xd2\xc2\x1a\x48\x03\x17\x3a\xba\x09\x0f\xb4\x53\xe2\xb2\xbe\xd2\xce\xed\x2b\x2d" +
+	"\x81\x87\x40\x0b\xc7\x48\x3d\xe8\xc4\x85\x4d\x8a\xab\x2a\x07\xa7\x3c\x38\x13\x28\x69\x3d\xe0\x34\xb5\xeb\xe6\xa5" +
+	"\xd1\xa5\x2a\xb9\x44\x9e\x33\x06\xa5\xc8\x69\x36\xcf\x2e\x9d\xa9\xd4\xfe\xde\xf8\x1d\x3d\x05\xd0\xd0\xb4\xab\xc9" +
+	"\xbe\xcd\xa0\x02\x18\x2a\xf3\x14\x94\x92\x2c\x26\x2b\x89\x52\x51\x31\xbb\x7d\x55\x92\x64\xc1\x20\x9f\xe0\x69\x09" +
+	"\x48\xf6\x6e\xc6\x3a\x78\x9d\xdb\xef\x2d\xee\x97\x97\x66\xa4\xdb\x6c\x9e\x6d\xce\x12\x31\xf8\x35\xa1\x5a\x40\xfb" +
+	"\x47\x97\x67\x2f\x4b\x7a\xf9\x3f\xa8\x1e\xcb\xc3\x76\x8b\xd4\x2d\x3c\xf3\x11\x9e\x5d\x27\x79\xda\xda\xbf\xed\x75" +
+	"\xee\xce\x6c\x14\x3d\x47\xac\x05\x5e\xf4\x97\x8e\x76\x63\x23\x5b\x43\xa3\x3b\x70\x64\x97\xd7\x9c\xb9\xb9\xa3\x12" +
+	"\xa4\x46\x4f\x23\x5b\x7d\x6f\xbd\x90\x2b\x6f\xd7\x6a\xb1\x46\x65\xbd\x25\x09\x84\xd7\x01\x47\x65\x49\x0f\xb4\x4b" +
+	"\x85\x3d\xd6\xce\x5a\xc8\x57\x17\x2d\x5a\xcb\x75\xbf\xff\xea\x26\xf3\x5c\x8b\x71\xbd\xd4\x3e\x82\xfa\xec\x86\x19" +
+	"\xa6\xef\x29\x48\xc1\x5a\xe7\xdf\x1d\x4e\x50\xca\x58\x32\xab\x22\x11\x27\x15\xfb\x41\x4e\x2e\x36\x7a\xb9\x6c\x42" +
+	"\x70\xb6\x9e\xd1\xaa\x89\x67\xf2\x3c\x8e\xc8\x56\x5d\x14\xe7\xed\xc5\x1e\xc1\x9d\xd8\x42\xd1\x60\x0b\xf8\xfa\x27" +
+	"\xa3\xa3\xf7\xb5\xed\x63\xa2\x21\xc3\x5d\x16\xe6\x4d\xd1\x22\x79\xa6\xef\xb5\xa8\xe5\x63\x8d\xed\x12\x0d\xae\xb4" +
+	"\x90\x09\xaf\x47\x64\x46\x1a\x40\x9a\x9b\xad\x77\xab\x98\x11\x4e\x6b\x06\x65\xfc\xa8\x28\x5a\x48\x32\x8d\x80\xef" +
+	"\xdd\x70\xa1\xb5\xe5\x6c\x9b\xb9\xdf\x95\x52\x71\xff\xd4\xf2\xc8\xbf\xeb\x9e\x58\x43\xed\xbb\x41\x0e\xdb\xcf\xf5" +
+	"\x27\x8f\xc8\x6b\xe1\x6c\xe3\xe5\xce\x36\xfc\x63\x1b\x31\xb8\xba\x19\xe4\x28\x8a\xcc\xe4\x2e\xdc\x0f\xe2\xf1\x4f" +
+	"\xdc\x5d\xb7\xf9\x15\x00\x00\xff\xff\x89\xe1\x8e\x06\x03\x04\x00\x00")
+
+func bindataHomemdBytes() ([]byte, error) {
+	return bindataRead(
+		_bindataHomemd,
+		"home.md",
+	)
+}
+
+
+
+func bindataHomemd() (*asset, error) {
+	bytes, err := bindataHomemdBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	info := bindataFileInfo{
+		name: "home.md",
+		size: 1027,
+		md5checksum: "90c96a95496c346cb0c694c0f029bc06",
+		mode: os.FileMode(420),
+		modTime: time.Unix(1, 0),
+	}
+
+	a := &asset{bytes: bytes, info: info}
+
+	return a, nil
+}
+
 
 //
 // Asset loads and returns the asset for the given name.
@@ -16322,6 +16374,7 @@ func AssetNames() []string {
 var _bindata = map[string]func() (*asset, error){
 	"frontend/app.js":     bindataFrontendAppjs,
 	"frontend/index.html": bindataFrontendIndexhtml,
+	"home.md":             bindataHomemd,
 }
 
 //
@@ -16380,6 +16433,7 @@ var _bintree = &bintree{Func: nil, Children: map[string]*bintree{
 		"app.js": {Func: bindataFrontendAppjs, Children: map[string]*bintree{}},
 		"index.html": {Func: bindataFrontendIndexhtml, Children: map[string]*bintree{}},
 	}},
+	"home.md": {Func: bindataHomemd, Children: map[string]*bintree{}},
 }}
 
 // RestoreAsset restores an asset under the given directory

home.md

@@ -0,0 +1,9 @@
+# Home
+
+Welcome to your new Wiki!
+
+You've successfully started the software and entered the frontend. Now you can edit everything! Maybe start with this page: It is the start page which will be visited automatically on visiting the Wiki without an direct link to any sub-page. The content you're seeing right now is not stored but only served when there is no stored [[Home]] page.
+
+When editing you can use [Markdown](https://en.wikipedia.org/wiki/Markdown) to style your contents. If you are familiar with it you should find everything as you are used to with one exception: Inside this Wiki you can link any [[Page]] using double brackets. Those will automatically get rewritten into internal links which have slightly different loading behaviour than external links. But even creating those will work just fine.
+
+In case you experience trouble, have feature requests or feedback just visit the [Issue-Tracker](https://github.com/Luzifer/wiki/issues) on Github or take a look at the [Code](https://github.com/Luzifer/wiki).

main.go

@@ -1,6 +1,6 @@
 package main
 
-//go:generate go-bindata -pkg $GOPACKAGE -o assets.go -modtime 1 -md5checksum ./frontend/...
+//go:generate go-bindata -pkg $GOPACKAGE -o assets.go -modtime 1 -md5checksum ./frontend/... home.md
 
 import (
 	"bytes"
@@ -104,8 +104,13 @@ func handlePageRead(w http.ResponseWriter, r *http.Request) {
 		// All okay, render follows
 
 	case errFileNotFound:
-		http.Error(w, "Page not yet exists", http.StatusNotFound)
-		return
+		if sanitizeFilename(vars["page"]) != "home.md" {
+			http.Error(w, "Page not yet exists", http.StatusNotFound)
+			return
+		}
+
+		// Deliver initial "Home" page
+		file = &storedFile{Content: string(MustAsset("home.md"))}
 
 	default:
 		http.Error(w, err.Error(), http.StatusInternalServerError)