Long overdue initial commit

This commit is contained in:
2018-06-10 14:50:06 +02:00
commit 18cb6f14aa
49 changed files with 3874 additions and 0 deletions
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package config
import (
"encoding/json"
"errors"
"log"
"os"
"sync"
)
var globalMutex sync.Mutex
var global *Config
// Config is configuration
type Config struct {
Space struct {
Host string `json:"host"`
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
Bucket string `json:"bucket"`
MaxSize int64 `json:"maxSize"`
Root string `json:"root"`
} `json:"space"`
Database struct {
Host string `json:"host"`
Port int `json:"port"`
Db string `json:"db"`
Username string `json:"username"`
Password string `json:"password"`
Mechanism string `json:"mechanism"`
} `json:"database"`
Wiki struct {
URL string `json:"url"`
} `json:"wiki"`
}
// Load loads config stuff
func (config *Config) Load(filename string) error {
file, err := os.Open(filename)
if err != nil {
return err
}
return json.NewDecoder(file).Decode(config)
}
// LoadAny loads the first of these files it can find
func (config *Config) LoadAny(filenames ...string) error {
for _, filename := range filenames {
if err := config.Load(filename); err == nil {
return nil
}
*config = Config{}
}
return errors.New("Failed to load configuration files")
}
// Global gets the global configuration, loading it if this is the first caller
func Global() Config {
globalMutex.Lock()
if global == nil {
global = &Config{}
err := global.LoadAny("/etc/aiterp/rpdata.json", "./config.json")
if err != nil {
log.Fatalln(err)
}
}
globalMutex.Unlock()
return *global
}
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package session
import "context"
type contextKeyType struct{ name string }
func (ck *contextKeyType) String() string {
return ck.name
}
var contextKey = &contextKeyType{name: "session context key"}
// FromContext gets a session fron the context.
func FromContext(ctx context.Context) *Session {
return ctx.Value(contextKey).(*Session)
}
func contextWithSession(parent context.Context, session *Session) context.Context {
return context.WithValue(parent, contextKey, session)
}
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package session
// DefaultPermissions gets the default permissions
func DefaultPermissions() []string {
return []string{
"member",
"log.edit",
"log.reorder",
"post.edit",
"post.move",
}
}
// AllPermissions gets all permissions and their purpose
func AllPermissions() map[string]string {
return map[string]string{
"member": "Can add/edit/remove own content",
"user.edit": "Can edit any users",
"character.add": "Can add any characters",
"character.edit": "Can edit any characters",
"character.remove": "Can remove any characters",
"log.add": "Can add logs",
"log.edit": "Can edit logs",
"log.remove": "Can remove logs",
"post.add": "Can add posts",
"post.edit": "Can edit posts",
"post.mvoe": "Can mvoe posts",
"post.remove": "Can remove posts",
"story.add": "Can add any stories",
"story.edit": "Can edit any stories",
"story.remove": "Can remove any stories",
}
}
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package session
import (
"crypto/rand"
"encoding/hex"
"log"
"net/http"
"strings"
"sync"
"time"
"git.aiterp.net/aiterp/wikiauth"
"git.aiterp.net/rpdata/api/internal/config"
"git.aiterp.net/rpdata/api/internal/store"
"github.com/globalsign/mgo"
"github.com/globalsign/mgo/bson"
)
var sessionCollection *mgo.Collection
// A Session represents a login session.
type Session struct {
mutex sync.Mutex
ID string `bson:"_id"`
Time time.Time `bson:"time"`
UserID string `bson:"userId"`
user *User
w http.ResponseWriter
}
// Load loads a session from a cookie, returning either `r` or a request
// with the session context.
func Load(w http.ResponseWriter, r *http.Request) *http.Request {
cookie, err := r.Cookie("aiterp_session")
if err != nil {
return r.WithContext(contextWithSession(r.Context(), &Session{w: w}))
}
id := cookie.Value
session := Session{}
err = sessionCollection.FindId(id).One(&session)
if err != nil || time.Since(session.Time) > time.Hour*168 {
return r.WithContext(contextWithSession(r.Context(), &Session{w: w}))
}
if session.ID != "" && time.Since(session.Time) > time.Second*30 {
session.Time = time.Now()
go sessionCollection.UpdateId(id, bson.M{"$set": bson.M{"time": session.Time}})
}
cookie.Expires = time.Now().Add(time.Hour * 168)
http.SetCookie(w, cookie)
session.w = w
return r.WithContext(contextWithSession(r.Context(), &session))
}
// Login logs a user in.
func (session *Session) Login(username, password string) error {
auth := wikiauth.New(config.Global().Wiki.URL)
err := auth.Login(username, password)
if err != nil {
return err
}
// Allow bot passwords
username = strings.SplitN(username, "@", 2)[0]
data := make([]byte, 32)
_, err = rand.Read(data)
if err != nil {
return err
}
session.ID = hex.EncodeToString(data)
session.UserID = username
session.Time = time.Now()
err = sessionCollection.Insert(&session)
if err != nil {
return err
}
http.SetCookie(session.w, &http.Cookie{
Name: "aiterp_session",
Value: session.ID,
Expires: time.Now().Add(time.Hour * 2160), // 90 days
HttpOnly: true,
})
user, err := FindUser(session.UserID)
if err == mgo.ErrNotFound {
user = User{ID: username, Nick: "", Permissions: DefaultPermissions()}
err := userCollection.Insert(user)
if err != nil {
return err
}
} else if err != nil {
return err
}
return nil
}
// Logout logs out the session
func (session *Session) Logout() {
http.SetCookie(session.w, &http.Cookie{
Name: "aiterp_session",
Value: "",
Expires: time.Unix(0, 0),
HttpOnly: true,
})
session.mutex.Lock()
session.user = nil
session.UserID = ""
session.ID = ""
session.mutex.Unlock()
sessionCollection.RemoveId(session.ID)
}
// User gets the user information for the session.
func (session *Session) User() *User {
session.mutex.Lock()
defer session.mutex.Unlock()
if session.user != nil {
return session.user
}
if session.UserID == "" {
return nil
}
user, err := FindUser(session.UserID)
if err != nil {
return nil
}
return &user
}
// NameOrPermitted is a shorthand for checking the username OR permissions, e.g. to check
// if a logged in user can edit a certain post.
func (session *Session) NameOrPermitted(userid string, permissions ...string) bool {
if session.UserID == userid {
return true
}
user := session.User()
if user == nil {
return false
}
return user.Permitted()
}
func init() {
store.HandleInit(func(db *mgo.Database) {
sessionCollection = db.C("core.sessions")
sessionCollection.EnsureIndexKey("nick")
sessionCollection.EnsureIndexKey("userId")
err := sessionCollection.EnsureIndex(mgo.Index{
Name: "time",
Key: []string{"time"},
ExpireAfter: time.Hour * 168,
})
if err != nil {
log.Fatalln(err)
}
})
}
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package session
import (
"git.aiterp.net/rpdata/api/internal/store"
"github.com/globalsign/mgo"
)
var userCollection *mgo.Collection
// A User represents user information about a user that has logged in.
type User struct {
ID string `bson:"_id" json:"id"`
Nick string `bson:"nick,omitempty" json:"nick,omitempty"`
Permissions []string `bson:"permissions" json:"permissions"`
}
// Permitted returns true if either of the permissions can be found
//
// `user.ID == page.Author || user.Permitted("story.edit")`
func (user *User) Permitted(permissions ...string) bool {
for i := range permissions {
for j := range user.Permissions {
if permissions[i] == user.Permissions[j] {
return true
}
}
}
return false
}
// FindUser finds a user by userid
func FindUser(userid string) (User, error) {
user := User{}
err := userCollection.FindId(userid).One(&user)
return user, err
}
func init() {
store.HandleInit(func(db *mgo.Database) {
userCollection = db.C("core.users")
})
}
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package store
import (
"fmt"
"time"
"github.com/globalsign/mgo"
)
var db *mgo.Database
var dbInits []func(db *mgo.Database)
// ConnectDB connects to a mongodb database.
func ConnectDB(host string, port int, database, username, password, mechanism string) error {
session, err := mgo.DialWithInfo(&mgo.DialInfo{
Addrs: []string{fmt.Sprintf("%s:%d", host, port)},
Timeout: 30 * time.Second,
Database: database,
Username: username,
Password: password,
Mechanism: mechanism,
Source: database,
})
if err != nil {
return err
}
db = session.DB(database)
return setupDB()
}
// HandleInit handles the initialization of the database
func HandleInit(function func(db *mgo.Database)) {
dbInits = append(dbInits, function)
}
func setupDB() error {
db.C("common.characters").EnsureIndexKey("name")
db.C("common.characters").EnsureIndexKey("shortName")
db.C("common.characters").EnsureIndexKey("author")
err := db.C("common.characters").EnsureIndex(mgo.Index{
Key: []string{"nicks"},
Unique: true,
DropDups: true,
})
if err != nil {
return err
}
db.C("logbot3.logs").EnsureIndexKey("date")
db.C("logbot3.logs").EnsureIndexKey("channel")
db.C("logbot3.logs").EnsureIndexKey("channel", "open")
db.C("logbot3.logs").EnsureIndexKey("open")
db.C("logbot3.logs").EnsureIndexKey("oldId")
db.C("logbot3.logs").EnsureIndexKey("characterIds")
db.C("logbot3.logs").EnsureIndexKey("event")
db.C("logbot3.logs").EnsureIndexKey("$text:channel", "$text:title", "$text:event", "$text:description", "$text:posts.nick", "$text:posts.text")
err = db.C("server.changes").EnsureIndex(mgo.Index{
Key: []string{"date"},
ExpireAfter: time.Hour * (24 * 14),
})
if err != nil {
return err
}
for _, dbInit := range dbInits {
dbInit(db)
}
return nil
}
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package store
import (
"sync"
"git.aiterp.net/rpdata/api/internal/config"
)
var initMuted sync.Mutex
var hasInitialized bool
// Init initalizes the store
func Init() error {
initMuted.Lock()
defer initMuted.Unlock()
if hasInitialized {
return nil
}
conf := config.Global()
dbconf := conf.Database
err := ConnectDB(dbconf.Host, dbconf.Port, dbconf.Db, dbconf.Username, dbconf.Password, dbconf.Mechanism)
if err != nil {
return err
}
sconf := conf.Space
err = ConnectSpace(sconf.Host, sconf.AccessKey, sconf.SecretKey, sconf.Bucket, sconf.MaxSize, sconf.Root)
if err != nil {
return err
}
hasInitialized = true
return nil
}
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package store
import (
"context"
"errors"
"fmt"
"io"
minio "github.com/minio/minio-go"
)
var spaceBucket string
var spaceURLRoot string
var spaceRoot string
var spaceClient *minio.Client
var spaceMaxSize int64
// ConnectSpace connects to a S3 space.
func ConnectSpace(host, accessKey, secretKey, bucket string, maxSize int64, rootDirectory string) error {
client, err := minio.New(host, accessKey, secretKey, true)
if err != nil {
return err
}
exists, err := client.BucketExists(bucket)
if err != nil {
return err
}
if !exists {
return errors.New("Bucket not found")
}
spaceClient = client
spaceBucket = bucket
spaceURLRoot = fmt.Sprintf("https://%s.%s/%s/", bucket, host, rootDirectory)
spaceMaxSize = maxSize
spaceRoot = rootDirectory
return nil
}
// UploadFile uploads the file to the space. This does not do any checks on it, so the endpoints should
// ensure that's all okay.
func UploadFile(ctx context.Context, folder string, name string, mimeType string, reader io.Reader, size int64) (string, error) {
path := folder + "/" + name
if size > spaceMaxSize {
return "", errors.New("File is too big")
}
_, err := spaceClient.PutObjectWithContext(ctx, spaceBucket, spaceRoot+"/"+path, reader, size, minio.PutObjectOptions{
ContentType: mimeType,
UserMetadata: map[string]string{
"x-amz-acl": "public-read",
},
})
if err != nil {
return "", err
}
_, err = spaceClient.StatObject(spaceBucket, path, minio.StatObjectOptions{})
if err != nil {
return "", err
}
return path, nil
}
// DownloadFile opens a file for download, using the same path format as the UploadFile function. Remember to Close it!
func DownloadFile(ctx context.Context, path string) (io.ReadCloser, error) {
return spaceClient.GetObjectWithContext(ctx, spaceBucket, spaceRoot+"/"+path, minio.GetObjectOptions{})
}
// URLFromPath gets the URL from the path returned by UploadFile
func URLFromPath(path string) string {
return spaceURLRoot + path
}