func main() {
opts := optparse.New("Usage: dynamodb-marshal file1.go [file2.go ...]",
"dynamodb-marshal 0.0.1")
force := opts.Bool([]string{"-f", "--force"},
"overwrite existing marshal files")
os.Args[0] = "dynamodb-marshal"
files := opts.Parse(os.Args)
if len(files) == 0 {
opts.PrintUsage()
runtime.Exit(0)
}
log.AddConsoleLogger()
for _, file := range files {
path, err := filepath.Abs(file)
if err != nil {
runtime.StandardError(err)
}
parseFile(path, *force)
}
log.Wait()
}
func main() {
// Define the options for the command line and config file options parser.
opts := optparse.New(
"Usage: planfile <config.yaml> [options]\n",
"planfile 0.0.1")
cookieKeyFile := opts.StringConfig("cookie-key-file", "cookie.key",
"the file containing the key to sign cookie values [cookie.key]")
gaHost := opts.StringConfig("ga-host", "",
"the google analytics hostname to use")
gaID := opts.StringConfig("ga-id", "",
"the google analytics id to use")
httpAddr := opts.StringConfig("http-addr", ":8888",
"the address to bind the http server [:8888]")
oauthID := opts.Required().StringConfig("oauth-id", "",
"the oauth client id for github")
oauthSecret := opts.Required().StringConfig("oauth-secret", "",
"the oauth client secret for github")
redirectURL := opts.StringConfig("redirect-url", "/.oauth",
"the redirect url for handling oauth [/.oauth]")
repository := opts.Required().StringConfig("repository", "",
"the username/repository on github")
secureMode := opts.BoolConfig("secure-mode",
"enable hsts and secure cookies [false]")
title := opts.StringConfig("title", "Planfile",
"the title for the web app [Planfile]")
refreshKey := opts.StringConfig("refresh-key", "",
"key for anonymously calling refresh at /.refresh?key=<refresh-key>")
refreshOpt := opts.IntConfig("refresh-interval", 1,
"the number of through-the-web edits before a full refresh [1]")
debug, instanceDirectory, _, logPath, _ = runtime.DefaultOpts("planfile", opts, os.Args, true)
service := &oauth.OAuthService{
ClientID: *oauthID,
ClientSecret: *oauthSecret,
Scope: "public_repo",
AuthURL: "https://github.com/login/oauth/authorize",
TokenURL: "https://github.com/login/oauth/access_token",
RedirectURL: *redirectURL,
AcceptHeader: "application/json",
}
assets := map[string]string{}
json.Unmarshal(readFile("assets.json"), &assets)
setupPygments()
mutex := sync.RWMutex{}
repo := &Repo{Path: *repository}
err := repo.Load(callGithubAnon)
if err != nil {
runtime.Exit(1)
}
repo.Title = *title
repo.Updated = time.Now().UTC()
repoJSON, err := json.Marshal(repo)
if err != nil {
runtime.StandardError(err)
}
refreshCount := 0
refreshInterval := *refreshOpt
refreshKeySet := *refreshKey != ""
refreshKeyBytes := []byte(*refreshKey)
secret := readFile(*cookieKeyFile)
newContext := func(w http.ResponseWriter, r *http.Request) *Context {
return &Context{
r: r,
w: w,
secret: secret,
secure: *secureMode,
}
}
register := func(path string, handler func(*Context), usegzip ...bool) {
gzippable := len(usegzip) > 0 && usegzip[0]
http.HandleFunc(path, func(w http.ResponseWriter, r *http.Request) {
log.Info("serving %s", r.URL)
w.Header().Set("Content-Type", "text/html; charset=utf-8")
if gzippable && httputil.Parse(r, "Accept-Encoding").Accepts("gzip") {
buf := &bytes.Buffer{}
enc := gzip.NewWriter(buf)
handler(newContext(GzipWriter{enc, w}, r))
enc.Close()
w.Header().Set("Content-Encoding", "gzip")
w.Header().Set("Content-Length", strconv.Itoa(buf.Len()))
buf.WriteTo(w)
} else {
handler(newContext(w, r))
}
})
}
anon := []byte(", null, null, '', false")
authFalse := []byte("', false")
authTrue := []byte("', true")
header := []byte(`<!doctype html>
<meta charset=utf-8>
<title>` + html.EscapeString(*title) + `</title>
<link href="//fonts.googleapis.com/css?family=Abel|Coustard:400" rel=stylesheet>
<link href=/.static/` + assets["planfile.css"] + ` rel=stylesheet>
<body><script>DATA = ['` + *gaHost + `', '` + *gaID + `', `)
footer := []byte(`];</script>
<script src=/.static/` + assets["planfile.js"] + `></script>
<noscript>Sorry, your browser needs <a href=http://enable-javascript.com>JavaScript enabled</a>.</noscript>
`)
register("/", func(ctx *Context) {
mutex.RLock()
defer mutex.RUnlock()
ctx.Write(header)
ctx.Write(repoJSON)
avatar := ctx.GetCookie("avatar")
user := ctx.GetCookie("user")
if avatar != "" && user != "" {
ctx.Write([]byte(", '" + user + "', '" + avatar + "', '" + ctx.GetCookie("xsrf")))
if ctx.IsAuthorised(repo) {
ctx.Write(authTrue)
} else {
ctx.Write(authFalse)
}
} else {
ctx.Write(anon)
}
ctx.Write(footer)
}, true)
register("/.api", func(ctx *Context) {
mutex.RLock()
defer mutex.RUnlock()
if cb := ctx.FormValue("callback"); cb != "" {
ctx.Write([]byte(cb))
ctx.Write([]byte{'('})
ctx.Write(repoJSON)
ctx.Write([]byte{')', ';'})
} else {
ctx.Write(repoJSON)
}
}, true)
register("/.login", func(ctx *Context) {
b := make([]byte, 20)
if n, err := rand.Read(b); err != nil || n != 20 {
ctx.Error("Couldn't access cryptographic device", err)
return
}
s := hex.EncodeToString(b)
ctx.SetCookie("xsrf", s)
ctx.Redirect(service.AuthCodeURL(s))
})
register("/.logout", func(ctx *Context) {
ctx.ExpireCookie("auth")
ctx.ExpireCookie("avatar")
ctx.ExpireCookie("token")
ctx.ExpireCookie("user")
ctx.ExpireCookie("xsrf")
ctx.Redirect("/")
})
notAuthorised := []byte("ERROR: Not Authorised!")
savedHeader := []byte(`<!doctype html>
<meta charset=utf-8>
<title>` + html.EscapeString(*title) + `</title>
<body><script>SAVED="`)
savedFooter := []byte(`"</script><script src=/.static/` + assets["planfile.js"] + `></script>`)
exportRepo := func(ctx *Context) bool {
repo.Updated = time.Now().UTC()
repoJSON, err = json.Marshal(repo)
if err != nil {
ctx.Error("Couldn't encode repo data during refresh", err)
return false
}
return true
}
refresh := func(ctx *Context) {
err := repo.Load(ctx.CreateCallGithub())
if err != nil {
log.Error("couldn't rebuild planfile info: %s", err)
ctx.Write([]byte("ERROR: " + err.Error()))
return
}
exportRepo(ctx)
}
saveItem := func(ctx *Context, update bool) {
mutex.Lock()
defer mutex.Unlock()
if !ctx.IsAuthorised(repo) {
ctx.Write(notAuthorised)
return
}
if !isEqual([]byte(ctx.FormValue("xsrf")), []byte(ctx.GetCookie("xsrf"))) {
ctx.Write(notAuthorised)
return
}
callGithub := ctx.CreateCallGithub()
err := repo.UpdateInfo(callGithub)
if err != nil {
ctx.Error("Couldn't update repo info", err)
return
}
var id, path, message string
if update {
id = ctx.FormValue("id")
path = ctx.FormValue("path")
} else {
baseID := ctx.FormValue("id")
id = baseID
count := 0
for repo.Exists(id + ".md") {
count += 1
id = fmt.Sprintf("%s%d", baseID, count)
}
path = id + ".md"
}
content := strings.Replace(ctx.FormValue("content"), "\r\n", "\n", -1)
tags := ctx.FormValue("tags")
title := ctx.FormValue("title")
redir := "/"
if ctx.FormValue("summary") == "yes" {
if id != "/" {
content = fmt.Sprintf(`---
title: %s
---
%s`, title, content)
if strings.HasPrefix(id, "summary.") {
redir = "/" + id[8:]
} else {
// Shouldn't ever happen. But just in case...
redir = "/" + id
}
}
} else {
redir = "/.item." + id
content = fmt.Sprintf(`---
id: %s
tags: %s
title: %s
---
%s`, id, tags, title, content)
}
if title == "" {
title = id
}
if update {
message = "update: " + title + "."
} else {
message = "add: " + title + "."
}
log.Info("SAVE PATH: %q for %q", path, title)
err = repo.Modify(ctx, path, content, message)
if err != nil {
if update {
ctx.Error("<a href='/.refresh'>Try refreshing.</a> Couldn't update item", err)
} else {
ctx.Error("<a href='/.refresh'>Try refreshing.</a> Couldn't save new item", err)
}
return
}
refreshCount++
if refreshCount%refreshInterval == 0 {
refresh(ctx)
} else {
repo.AddPlanfile(path, []byte(content), callGithub)
if !exportRepo(ctx) {
return
}
}
ctx.Write(savedHeader)
ctx.Write([]byte(html.EscapeString(redir)))
ctx.Write(savedFooter)
}
register("/.modify", func(ctx *Context) {
saveItem(ctx, true)
})
register("/.new", func(ctx *Context) {
saveItem(ctx, false)
})
register("/.oauth", func(ctx *Context) {
s := ctx.FormValue("state")
if s == "" {
ctx.Redirect("/.login")
return
}
if !isEqual([]byte(s), []byte(ctx.GetCookie("xsrf"))) {
ctx.ExpireCookie("xsrf")
ctx.Redirect("/.login")
return
}
t := &oauth.Transport{OAuthService: service}
tok, err := t.ExchangeAuthorizationCode(ctx.FormValue("code"))
if err != nil {
ctx.Error("Auth Exchange Error", err)
return
}
jtok, err := json.Marshal(tok)
if err != nil {
ctx.Error("Couldn't encode token", err)
return
}
ctx.SetCookie("token", hex.EncodeToString(jtok))
ctx.token = tok
user := &User{}
err = ctx.Call("/user", user, nil, false)
if err != nil {
ctx.Error("Couldn't load user info", err)
return
}
ctx.SetCookie("avatar", user.AvatarURL)
ctx.SetCookie("user", user.Login)
ctx.Redirect("/")
})
register("/.preview", func(ctx *Context) {
rendered, err := renderMarkdown([]byte(ctx.FormValue("content")))
if err != nil {
ctx.Error("Couldn't render Markdown", err)
return
}
ctx.Write(rendered)
}, true)
register("/.refresh", func(ctx *Context) {
if !ctx.IsAuthorised(repo) {
if !(refreshKeySet && isEqual(refreshKeyBytes, []byte(ctx.FormValue("key")))) {
ctx.Write(notAuthorised)
return
}
}
mutex.Lock()
defer mutex.Unlock()
refresh(ctx)
ctx.Redirect("/")
})
mimetypes := map[string]string{
"css": "text/css",
"gif": "image/gif",
"ico": "image/x-icon",
"jpeg": "image/jpeg",
"jpg": "image/jpeg",
"js": "text/javascript",
"png": "image/png",
"swf": "application/x-shockwave-flash",
"txt": "text/plain",
}
registerStatic := func(filepath, urlpath string) {
_, ext := rsplit(filepath, ".")
ctype, ok := mimetypes[ext]
if !ok {
ctype = "application/octet-stream"
}
if debug {
register(urlpath, func(ctx *Context) {
ctx.SetHeader("Content-Type", ctype)
ctx.Write(readFile(filepath))
}, strings.HasPrefix(ctype, "text/"))
} else {
content := readFile(filepath)
register(urlpath, func(ctx *Context) {
ctx.SetHeader("Cache-Control", "public, max-age=86400")
ctx.SetHeader("Content-Type", ctype)
ctx.Write(content)
}, strings.HasPrefix(ctype, "text/"))
}
}
for _, path := range assets {
registerStatic(filepath.Join(instanceDirectory, "static", path), "/.static/"+path)
}
wwwPath := filepath.Join(instanceDirectory, "www")
if files, err := ioutil.ReadDir(wwwPath); err == nil {
for _, file := range files {
if !file.IsDir() {
registerStatic(filepath.Join(wwwPath, file.Name()), "/"+file.Name())
}
}
}
log.Info("Listening on %s", *httpAddr)
server := &http.Server{
Addr: *httpAddr,
ReadTimeout: 30 * time.Second,
WriteTimeout: 30 * time.Second,
}
err = server.ListenAndServe()
if err != nil {
runtime.Error("couldn't bind to tcp socket: %s", err)
}
}