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diff --git a/app.go b/app.go
index 97aa7c6..f48b28e 100644
--- a/app.go
+++ b/app.go
@@ -1,531 +1,547 @@
package writefreely
import (
"database/sql"
"flag"
"fmt"
"html/template"
"io/ioutil"
"net/http"
"net/url"
"os"
"os/signal"
"regexp"
"strings"
"syscall"
"time"
_ "github.com/go-sql-driver/mysql"
_ "github.com/mattn/go-sqlite3"
"github.com/gorilla/mux"
"github.com/gorilla/schema"
"github.com/gorilla/sessions"
"github.com/manifoldco/promptui"
"github.com/writeas/go-strip-markdown"
"github.com/writeas/web-core/auth"
"github.com/writeas/web-core/converter"
"github.com/writeas/web-core/log"
+ "github.com/writeas/writefreely/author"
"github.com/writeas/writefreely/config"
"github.com/writeas/writefreely/page"
)
const (
staticDir = "static/"
assumedTitleLen = 80
postsPerPage = 10
serverSoftware = "WriteFreely"
softwareURL = "https://writefreely.org"
)
var (
debugging bool
// Software version can be set from git env using -ldflags
softwareVer = "0.6.0"
// DEPRECATED VARS
// TODO: pass app.cfg into GetCollection* calls so we can get these values
// from Collection methods and we no longer need these.
hostName string
isSingleUser bool
)
type app struct {
router *mux.Router
db *datastore
cfg *config.Config
cfgFile string
keys *keychain
sessionStore *sessions.CookieStore
formDecoder *schema.Decoder
timeline *localTimeline
}
// handleViewHome shows page at root path. Will be the Pad if logged in and the
// catch-all landing page otherwise.
func handleViewHome(app *app, w http.ResponseWriter, r *http.Request) error {
if app.cfg.App.SingleUser {
// Render blog index
return handleViewCollection(app, w, r)
}
// Multi-user instance
u := getUserSession(app, r)
if u != nil {
// User is logged in, so show the Pad
return handleViewPad(app, w, r)
}
p := struct {
page.StaticPage
Flashes []template.HTML
}{
StaticPage: pageForReq(app, r),
}
// Get error messages
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
// Ignore this
log.Error("Unable to get session in handleViewHome; ignoring: %v", err)
}
flashes, _ := getSessionFlashes(app, w, r, session)
for _, flash := range flashes {
p.Flashes = append(p.Flashes, template.HTML(flash))
}
// Show landing page
return renderPage(w, "landing.tmpl", p)
}
func handleTemplatedPage(app *app, w http.ResponseWriter, r *http.Request, t *template.Template) error {
p := struct {
page.StaticPage
Content template.HTML
PlainContent string
Updated string
AboutStats *InstanceStats
}{
StaticPage: pageForReq(app, r),
}
if r.URL.Path == "/about" || r.URL.Path == "/privacy" {
var c string
var updated *time.Time
var err error
if r.URL.Path == "/about" {
c, err = getAboutPage(app)
// Fetch stats
p.AboutStats = &InstanceStats{}
p.AboutStats.NumPosts, _ = app.db.GetTotalPosts()
p.AboutStats.NumBlogs, _ = app.db.GetTotalCollections()
} else {
c, updated, err = getPrivacyPage(app)
}
if err != nil {
return err
}
p.Content = template.HTML(applyMarkdown([]byte(c)))
p.PlainContent = shortPostDescription(stripmd.Strip(c))
if updated != nil {
p.Updated = updated.Format("January 2, 2006")
}
}
// Serve templated page
err := t.ExecuteTemplate(w, "base", p)
if err != nil {
log.Error("Unable to render page: %v", err)
}
return nil
}
func pageForReq(app *app, r *http.Request) page.StaticPage {
p := page.StaticPage{
AppCfg: app.cfg.App,
Path: r.URL.Path,
Version: "v" + softwareVer,
}
// Add user information, if given
var u *User
accessToken := r.FormValue("t")
if accessToken != "" {
userID := app.db.GetUserID(accessToken)
if userID != -1 {
var err error
u, err = app.db.GetUserByID(userID)
if err == nil {
p.Username = u.Username
}
}
} else {
u = getUserSession(app, r)
if u != nil {
p.Username = u.Username
}
}
return p
}
var shttp = http.NewServeMux()
var fileRegex = regexp.MustCompile("/([^/]*\\.[^/]*)$")
func Serve() {
debugPtr := flag.Bool("debug", false, "Enables debug logging.")
createConfig := flag.Bool("create-config", false, "Creates a basic configuration and exits")
doConfig := flag.Bool("config", false, "Run the configuration process")
genKeys := flag.Bool("gen-keys", false, "Generate encryption and authentication keys")
createSchema := flag.Bool("init-db", false, "Initialize app database")
createAdmin := flag.String("create-admin", "", "Create an admin with the given username:password")
resetPassUser := flag.String("reset-pass", "", "Reset the given user's password")
configFile := flag.String("c", "config.ini", "The configuration file to use")
outputVersion := flag.Bool("v", false, "Output the current version")
flag.Parse()
debugging = *debugPtr
app := &app{
cfgFile: *configFile,
}
if *outputVersion {
fmt.Println(serverSoftware + " " + softwareVer)
os.Exit(0)
} else if *createConfig {
log.Info("Creating configuration...")
c := config.New()
log.Info("Saving configuration %s...", app.cfgFile)
err := config.Save(c, app.cfgFile)
if err != nil {
log.Error("Unable to save configuration: %v", err)
os.Exit(1)
}
os.Exit(0)
} else if *doConfig {
d, err := config.Configure(app.cfgFile)
if err != nil {
log.Error("Unable to configure: %v", err)
os.Exit(1)
}
if d.User != nil {
app.cfg = d.Config
connectToDatabase(app)
defer shutdown(app)
u := &User{
Username: d.User.Username,
HashedPass: d.User.HashedPass,
Created: time.Now().Truncate(time.Second).UTC(),
}
// Create blog
log.Info("Creating user %s...\n", u.Username)
err = app.db.CreateUser(u, app.cfg.App.SiteName)
if err != nil {
log.Error("Unable to create user: %s", err)
os.Exit(1)
}
log.Info("Done!")
}
os.Exit(0)
} else if *genKeys {
errStatus := 0
err := generateKey(emailKeyPath)
if err != nil {
errStatus = 1
}
err = generateKey(cookieAuthKeyPath)
if err != nil {
errStatus = 1
}
err = generateKey(cookieKeyPath)
if err != nil {
errStatus = 1
}
os.Exit(errStatus)
} else if *createSchema {
loadConfig(app)
connectToDatabase(app)
defer shutdown(app)
schemaFileName := "schema.sql"
if app.cfg.Database.Type == "sqlite3" {
schemaFileName = "sqlite.sql"
}
schema, err := ioutil.ReadFile(schemaFileName)
if err != nil {
log.Error("Unable to load schema file: %v", err)
os.Exit(1)
}
tblReg := regexp.MustCompile("CREATE TABLE (IF NOT EXISTS )?`([a-z_]+)`")
queries := strings.Split(string(schema), ";\n")
for _, q := range queries {
if strings.TrimSpace(q) == "" {
continue
}
parts := tblReg.FindStringSubmatch(q)
if len(parts) >= 3 {
log.Info("Creating table %s...", parts[2])
} else {
log.Info("Creating table ??? (Weird query) No match in: %v", parts)
}
_, err = app.db.Exec(q)
if err != nil {
log.Error("%s", err)
} else {
log.Info("Created.")
}
}
os.Exit(0)
} else if *createAdmin != "" {
adminCreateUser(app, *createAdmin, true)
} else if *resetPassUser != "" {
// Connect to the database
loadConfig(app)
connectToDatabase(app)
defer shutdown(app)
// Fetch user
u, err := app.db.GetUserForAuth(*resetPassUser)
if err != nil {
log.Error("Get user: %s", err)
os.Exit(1)
}
// Prompt for new password
prompt := promptui.Prompt{
Templates: &promptui.PromptTemplates{
Success: "{{ . | bold | faint }}: ",
},
Label: "New password",
Mask: '*',
}
newPass, err := prompt.Run()
if err != nil {
log.Error("%s", err)
os.Exit(1)
}
// Do the update
log.Info("Updating...")
err = adminResetPassword(app, u, newPass)
if err != nil {
log.Error("%s", err)
os.Exit(1)
}
log.Info("Success.")
os.Exit(0)
}
log.Info("Initializing...")
loadConfig(app)
hostName = app.cfg.App.Host
isSingleUser = app.cfg.App.SingleUser
app.cfg.Server.Dev = *debugPtr
initTemplates()
// Load keys
log.Info("Loading encryption keys...")
err := initKeys(app)
if err != nil {
log.Error("\n%s\n", err)
}
// Initialize modules
app.sessionStore = initSession(app)
app.formDecoder = schema.NewDecoder()
app.formDecoder.RegisterConverter(converter.NullJSONString{}, converter.ConvertJSONNullString)
app.formDecoder.RegisterConverter(converter.NullJSONBool{}, converter.ConvertJSONNullBool)
app.formDecoder.RegisterConverter(sql.NullString{}, converter.ConvertSQLNullString)
app.formDecoder.RegisterConverter(sql.NullBool{}, converter.ConvertSQLNullBool)
app.formDecoder.RegisterConverter(sql.NullInt64{}, converter.ConvertSQLNullInt64)
app.formDecoder.RegisterConverter(sql.NullFloat64{}, converter.ConvertSQLNullFloat64)
// Check database configuration
if app.cfg.Database.User == "" || app.cfg.Database.Password == "" {
log.Error("Database user or password not set.")
os.Exit(1)
}
if app.cfg.Database.Host == "" {
app.cfg.Database.Host = "localhost"
}
if app.cfg.Database.Database == "" {
app.cfg.Database.Database = "writefreely"
}
connectToDatabase(app)
defer shutdown(app)
// Test database connection
err = app.db.Ping()
if err != nil {
log.Error("Database ping failed: %s", err)
}
r := mux.NewRouter()
handler := NewHandler(app)
handler.SetErrorPages(&ErrorPages{
NotFound: pages["404-general.tmpl"],
Gone: pages["410.tmpl"],
InternalServerError: pages["500.tmpl"],
Blank: pages["blank.tmpl"],
})
// Handle app routes
initRoutes(handler, r, app.cfg, app.db)
// Handle local timeline, if enabled
if app.cfg.App.LocalTimeline {
log.Info("Initializing local timeline...")
initLocalTimeline(app)
}
// Handle static files
fs := http.FileServer(http.Dir(staticDir))
shttp.Handle("/", fs)
r.PathPrefix("/").Handler(fs)
// Handle shutdown
c := make(chan os.Signal, 2)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
<-c
log.Info("Shutting down...")
shutdown(app)
log.Info("Done.")
os.Exit(0)
}()
http.Handle("/", r)
// Start web application server
var bindAddress = app.cfg.Server.Bind
if bindAddress == "" {
bindAddress = "localhost"
}
if app.cfg.IsSecureStandalone() {
log.Info("Serving redirects on http://%s:80", bindAddress)
go func() {
err = http.ListenAndServe(
fmt.Sprintf("%s:80", bindAddress), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, app.cfg.App.Host, http.StatusMovedPermanently)
}))
log.Error("Unable to start redirect server: %v", err)
}()
log.Info("Serving on https://%s:443", bindAddress)
log.Info("---")
err = http.ListenAndServeTLS(
fmt.Sprintf("%s:443", bindAddress), app.cfg.Server.TLSCertPath, app.cfg.Server.TLSKeyPath, nil)
} else {
log.Info("Serving on http://%s:%d\n", bindAddress, app.cfg.Server.Port)
log.Info("---")
err = http.ListenAndServe(fmt.Sprintf("%s:%d", bindAddress, app.cfg.Server.Port), nil)
}
if err != nil {
log.Error("Unable to start: %v", err)
os.Exit(1)
}
}
func loadConfig(app *app) {
log.Info("Loading %s configuration...", app.cfgFile)
cfg, err := config.Load(app.cfgFile)
if err != nil {
log.Error("Unable to load configuration: %v", err)
os.Exit(1)
}
app.cfg = cfg
}
func connectToDatabase(app *app) {
log.Info("Connecting to %s database...", app.cfg.Database.Type)
var db *sql.DB
var err error
if app.cfg.Database.Type == "mysql" {
db, err = sql.Open(app.cfg.Database.Type, fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=true&loc=%s", app.cfg.Database.User, app.cfg.Database.Password, app.cfg.Database.Host, app.cfg.Database.Port, app.cfg.Database.Database, url.QueryEscape(time.Local.String())))
db.SetMaxOpenConns(50)
} else if app.cfg.Database.Type == "sqlite3" {
if app.cfg.Database.FileName == "" {
log.Error("SQLite database filename value in config.ini is empty.")
os.Exit(1)
}
db, err = sql.Open("sqlite3", app.cfg.Database.FileName+"?parseTime=true&cached=shared")
db.SetMaxOpenConns(1)
} else {
log.Error("Invalid database type '%s'. Only 'mysql' and 'sqlite3' are supported right now.", app.cfg.Database.Type)
os.Exit(1)
}
if err != nil {
log.Error("%s", err)
os.Exit(1)
}
app.db = &datastore{db, app.cfg.Database.Type}
}
func shutdown(app *app) {
log.Info("Closing database connection...")
app.db.Close()
}
func adminCreateUser(app *app, credStr string, isAdmin bool) {
// Create an admin user with --create-admin
creds := strings.Split(credStr, ":")
if len(creds) != 2 {
log.Error("usage: writefreely --create-admin username:password")
os.Exit(1)
}
loadConfig(app)
connectToDatabase(app)
defer shutdown(app)
// Ensure an admin / first user doesn't already exist
if u, _ := app.db.GetUserByID(1); u != nil {
log.Error("Admin user already exists (%s). Aborting.", u.Username)
os.Exit(1)
}
// Create the user
username := creds[0]
password := creds[1]
+ // Normalize and validate username
+ desiredUsername := username
+ username = getSlug(username, "")
+
+ usernameDesc := username
+ if username != desiredUsername {
+ usernameDesc += " (originally: " + desiredUsername + ")"
+ }
+
+ if !author.IsValidUsername(app.cfg, username) {
+ log.Error("Username %s is invalid, reserved, or shorter than configured minimum length (%d characters).", usernameDesc, app.cfg.App.MinUsernameLen)
+ os.Exit(1)
+ }
+
+ // Hash the password
hashedPass, err := auth.HashPass([]byte(password))
if err != nil {
log.Error("Unable to hash password: %v", err)
os.Exit(1)
}
u := &User{
Username: username,
HashedPass: hashedPass,
Created: time.Now().Truncate(time.Second).UTC(),
}
log.Info("Creating user %s...", u.Username)
err = app.db.CreateUser(u, "")
if err != nil {
log.Error("Unable to create user: %s", err)
os.Exit(1)
}
log.Info("Done!")
os.Exit(0)
}

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