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Merge pull request #20 from gmemstr/setup

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Auto-setup on first run, which means binary can be distributed standalone in the future.
This commit is contained in:
Gabriel Simmer 2017-12-19 09:21:21 -08:00 committed by GitHub
parent 1188b7d380 b082d0de05
commit 9a1ff2e282
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 218 additions and 74 deletions
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4
.gitignore vendored
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@ -22,3 +22,7 @@ feed\.rss
vendor/
assets/config/users\.db
run\.lockfile
\.lock

8
Godeps/Godeps.json generated
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@ -8,6 +8,14 @@
"Comment": "v1.4.2-6-g4da3e2c",
"Rev": "4da3e2cfbabc9f751898f250b49f2439785783a1"
},
{
"ImportPath": "github.com/google/go-github/github",
"Rev": "fbfee053c26dab3772adfc7799d995eed379133e"
},
{
"ImportPath": "github.com/google/go-querystring/query",
"Rev": "53e6ce116135b80d037921a7fdd5138cf32d7a8a"
},
{
"ImportPath": "github.com/gorilla/feeds",
"Comment": "v1.0.0",

7
README.md
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@ -8,7 +8,7 @@ Podcast RSS feed generator and CMS in Go.
There are a couple options for getting Pogo up and running.
- [Download the latest release](https://github.com/gmemstr/pogo/releases/latest)
- [Download the latest release](#running)
- [Clone the repo and build](#building)
## Status
@ -29,11 +29,10 @@ There are a couple options for getting Pogo up and running.
1. [Download the latest release](https://github.com/gmemstr/pogo/releases/latest)
2. Unzip somewhere safe
3. [Edit the config](https://github.com/gmemstr/pogo/wiki/Configuration)
3. [Edit the configuration](https://github.com/gmemstr/pogo/wiki/Configuration)
4. Run `pogo`
5. Navigate to your instance (`localhost:3000` by default)
6. Login to the admin interface (default: **admin**, **password1**)
7. **CHANGE YOUR PASSWORD**
6. Login to the admin interface (your credentials are generated on the first run)
## Building

BIN
assets/config/users.db
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2
assets/web/admin.html
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@ -10,7 +10,7 @@
<div class="container">
<div id="app">
<nav>
<router-link to="/publish">Publish</router-link> <router-link to="/manage">Episodes</router-link> <router-link to="/theme">Theme</router-link> <router-link to="/users">Users</router-link></nav>
<router-link to="/publish">Publish</router-link> <router-link to="/manage">Episodes</router-link> <router-link to="/theme">Theme</router-link> <router-link to="/users">Users</router-link> <button onclick="logout()">Logout</button></nav>
<h1>{{ header }}</h1>
<router-view></router-view>
</div>

30
assets/web/setup.html
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@ -1,30 +0,0 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Pogo Setup</title>
<link rel="stylesheet" href="/assets/setup.css">
</head>
<body>
<h1>Let's get Pogo setup</h1>
<form action="setup" method="post" class="setupform">
<label for="podcastname">Podcast Name</label>
<input type="text" id="podcastname" name="podcastname">
<label for="podcasthost">Podcast Host</label>
<input type="text" id="podcasthost" name="podcasthost">
<label for="podcastemail">Podcast Email</label>
<input type="text" id="podcastemail" name="podcastemail">
<label for="podcastdescription">Podcast Description</label>
<textarea name="" id="podcastdescription" name="podcastdescription" cols="75" rows="5"></textarea>
<input type="submit" value="Submit">
</form>
</body>
</html>

5
assets/web/static/app.js
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@ -377,3 +377,8 @@ function get(url,callback) {
xmlHttp.open("GET", url, true);
xmlHttp.send(null);
}
function logout() {
document.cookie = "POGO_SESSION=;expires=Thu, 01 Jan 1970 00:00:01 GMT";
window.location = "/";
}

43
router/router.go
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@ -2,13 +2,10 @@ package router
import (
"database/sql"
"encoding/json"
"fmt"
"golang.org/x/crypto/bcrypt"
"io/ioutil"
"log"
"net/http"
"strings"
_ "github.com/mattn/go-sqlite3"
@ -52,6 +49,7 @@ func Init() *mux.Router {
// "Static" paths
r.PathPrefix("/assets/").Handler(http.StripPrefix("/assets/", http.FileServer(http.Dir("assets/web/static"))))
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir("assets/web/static"))))
r.PathPrefix("/download/").Handler(http.StripPrefix("/download/", http.FileServer(http.Dir("podcasts"))))
// Paths that require specific handlers
@ -122,10 +120,6 @@ func Init() *mux.Router {
admin.ListUsers(),
)).Methods("GET")
r.Handle("/setup", Handle(
serveSetup(),
)).Methods("GET", "POST")
return r
}
@ -164,9 +158,9 @@ func loginHandler() common.Handler {
password := r.Form.Get("password")
rows, err := statement.Query(username)
if username == "" || password == "" {
if username == "" || password == "" || err != nil {
return &common.HTTPError{
Message: "username or password is empty",
Message: "username or password is invalid",
StatusCode: http.StatusBadRequest,
}
}
@ -187,7 +181,7 @@ func loginHandler() common.Handler {
}
// Create a cookie here because the credentials are correct
if dbun == username && bcrypt.CompareHashAndPassword([]byte(dbhsh), []byte(password)) == nil {
if bcrypt.CompareHashAndPassword([]byte(dbhsh), []byte(password)) == nil {
c, err := auth.CreateSession(&common.User{
Username: username,
})
@ -244,32 +238,3 @@ func adminHandler() common.Handler {
return common.ReadAndServeFile("assets/web/admin.html", w)
}
}
// Serve setup.html and config parameters
func serveSetup() common.Handler {
return func(rc *common.RouterContext, w http.ResponseWriter, r *http.Request) *common.HTTPError {
if r.Method == "GET" {
return common.ReadAndServeFile("assets/web/setup.html", w)
}
r.ParseMultipartForm(32 << 20)
// Parse form and convert to JSON
cnf := NewConfig{
strings.Join(r.Form["podcastname"], ""), // Podcast name
strings.Join(r.Form["podcasthost"], ""), // Podcast host
strings.Join(r.Form["podcastemail"], ""), // Podcast host email
"", // Podcast image
"", // Podcast location
"", // Podcast location
}
b, err := json.Marshal(cnf)
if err != nil {
panic(err)
}
ioutil.WriteFile("assets/config/config.json", b, 0644)
w.Write([]byte("Done"))
return nil
}
}

184
setup.go Normal file
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@ -0,0 +1,184 @@
package main
import (
"archive/zip"
"context"
"crypto/rand"
"database/sql"
"encoding/base64"
"fmt"
_ "github.com/mattn/go-sqlite3"
"golang.org/x/crypto/bcrypt"
"io"
"net/http"
"os"
"path/filepath"
"github.com/google/go-github/github"
)
func GenerateRandomBytes(n int) ([]byte, error) {
b := make([]byte, n)
_, err := rand.Read(b)
if err != nil {
return nil, err
}
return b, nil
}
// GenerateRandomString returns a URL-safe, base64 encoded
// securely generated random string.
func GenerateRandomString(s int) (string, error) {
b, err := GenerateRandomBytes(s)
return base64.URLEncoding.EncodeToString(b), err
}
func Setup() {
defer LockFile()
// Create users SQLite3 file
fmt.Println("Initializing the database")
os.MkdirAll("assets/config/", 0755)
os.Mkdir("podcasts", 0755)
os.Create("assets/config/users.db")
db, err := sql.Open("sqlite3", "assets/config/users.db")
if err != nil {
fmt.Println("Problem opening database file! %v", err)
}
_, err = db.Exec("CREATE TABLE IF NOT EXISTS `users` ( `id` INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE, `username` TEXT UNIQUE, `hash` TEXT, `realname` TEXT, `email` TEXT, `permissions` INTEGER )")
if err != nil {
fmt.Println("Problem creating database! %v", err)
}
text, err := GenerateRandomString(12)
if err != nil {
fmt.Println("Error randomly generating password", err)
}
fmt.Println("Admin password: ", text)
hash, err := bcrypt.GenerateFromPassword([]byte(text), 4)
if err != nil {
fmt.Println("Error generating hash", err)
}
if bcrypt.CompareHashAndPassword(hash, []byte(text)) == nil {
fmt.Println("Password hashed")
}
_, err = db.Exec("INSERT INTO users(id,username,hash,realname,email,permissions) VALUES (0,'admin','" + string(hash) + "','Administrator','admin@localhost',2)")
if err != nil {
fmt.Println("Problem creating database! %v", err)
}
defer db.Close()
// Download web assets
fmt.Println("Downloading web assets")
os.MkdirAll("assets/web/", 0755)
client := github.NewClient(nil).Repositories
ctx := context.Background()
res, _, err := client.GetLatestRelease(ctx, "gmemstr", "pogo-vue")
if err != nil {
fmt.Println("Problem getting latest pogo-vue release! %v", err)
}
for i := 0; i < len(res.Assets); i++ {
if res.Assets[i].GetName() == "webassets.zip" {
download := res.Assets[i]
fmt.Println("Release found: %v", download.GetBrowserDownloadURL())
tmpfile, err := os.Create(download.GetName())
if err != nil {
fmt.Println("Problem creating webassets file! %v", err)
}
var j io.Reader = (*os.File)(tmpfile)
defer tmpfile.Close()
j, s, err := client.DownloadReleaseAsset(ctx, "gmemstr", "pogo-vue", download.GetID())
if err != nil {
fmt.Println("Problem downloading webassets! %v", err)
}
if j == nil {
resp, err := http.Get(s)
defer resp.Body.Close()
_, err = io.Copy(tmpfile, resp.Body)
if err != nil {
fmt.Println("Problem creating webassets file! %v", err)
}
fmt.Println("Download complete\nUnzipping")
err = Unzip(download.GetName(), "assets/web")
defer os.Remove(download.GetName()) // Remove zip
} else {
fmt.Println("Unexpected error, please open an issue!")
}
}
}
}
func LockFile() {
lock, err := os.Create(".lock")
if err != nil {
fmt.Println("Error: %v", err)
}
lock.Write([]byte("This file left intentionally empty"))
defer lock.Close()
}
// From https://stackoverflow.com/questions/20357223/easy-way-to-unzip-file-with-golang
func Unzip(src, dest string) error {
r, err := zip.OpenReader(src)
if err != nil {
return err
}
defer func() {
if err := r.Close(); err != nil {
panic(err)
}
}()
os.MkdirAll(dest, 0755)
// Closure to address file descriptors issue with all the deferred .Close() methods
extractAndWriteFile := func(f *zip.File) error {
rc, err := f.Open()
if err != nil {
return err
}
defer func() {
if err := rc.Close(); err != nil {
panic(err)
}
}()
path := filepath.Join(dest, f.Name)
if f.FileInfo().IsDir() {
os.MkdirAll(path, f.Mode())
} else {
os.MkdirAll(filepath.Dir(path), f.Mode())
f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
if err != nil {
return err
}
defer func() {
if err := f.Close(); err != nil {
panic(err)
}
}()
_, err = io.Copy(f, rc)
if err != nil {
return err
}
}
return nil
}
for _, f := range r.File {
err := extractAndWriteFile(f)
if err != nil {
return err
}
}
return nil
}

9
webserver.go
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@ -10,12 +10,21 @@ import (
"fmt"
"log"
"net/http"
"os"
"github.com/gmemstr/pogo/router"
)
// Main function that defines routes
func main() {
// Check if this is the first time Pogo has been run
// with a lockfile
if _, err := os.Stat(".lock"); os.IsNotExist(err) {
fmt.Println("This looks like your first time running Pogo, give me a second to set myself up.")
Setup()
}
// Start the watch() function in generate_rss.go, which
// watches for file changes and regenerates the feed
go watch()