405 lines
9.7 KiB
Go
405 lines
9.7 KiB
Go
package main
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import (
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"database/sql"
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"encoding/json"
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"flag"
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"fmt"
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"math/rand"
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"net/http"
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"os"
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"path"
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"time"
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"github.com/gobuffalo/packr/v2"
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_ "github.com/mattn/go-sqlite3"
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"github.com/gorilla/mux"
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"github.com/jmoiron/sqlx"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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hashids "github.com/speps/go-hashids"
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"github.com/stretchr/graceful"
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)
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var (
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salt = flag.String("salt", "happy", "salt for IDs")
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minHashLen = flag.Int("minHashLen", 4, "minimum ID hash size")
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develop = flag.Bool("develop", false, "turn on develop mode")
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)
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func main() {
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flag.Parse()
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log.Logger = log.Logger.Output(zerolog.ConsoleWriter{Out: os.Stderr})
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zerolog.SetGlobalLevel(zerolog.DebugLevel)
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box := packr.New("dist", "frontend/dist")
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log.Debug().Strs("dirlist", box.List()).Msg("packr made")
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s := server{
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addr: "0.0.0.0:8080",
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assetPath: "pub",
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salt: *salt,
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box: box,
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}
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db, err := sqlx.Connect("sqlite3", "happy.db")
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if err != nil {
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log.Fatal().
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Err(err).
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Msg("could not connect to database")
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}
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s.db = db
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hd := hashids.NewData()
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hd.Salt = s.salt
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hd.MinLength = *minHashLen
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s.h, _ = hashids.NewWithData(hd)
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if err := s.makeDB(); err != nil {
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log.Fatal().
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Err(err).
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Msg("could not create database")
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}
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s.serve()
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}
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type server struct {
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addr string
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assetPath string
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db *sqlx.DB
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salt string
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h *hashids.HashID
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box *packr.Box
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}
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func (s *server) makeDB() error {
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q := `create table if not exists users (
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id integer primary key,
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email text unique,
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verification integer not null,
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dateCreated integer,
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lastLogin integer
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)`
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if _, err := s.db.Exec(q); err != nil {
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return err
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}
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q = `create table if not exists mood_categories (
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id integer primary key,
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name text
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)`
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if _, err := s.db.Exec(q); err != nil {
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return err
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}
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q = `create table if not exists mood_category_texts (
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id integer primary key,
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mood_category_id integer,
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key text,
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value integer,
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foreign key(mood_category_id) references mood_categories(id)
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)`
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if _, err := s.db.Exec(q); err != nil {
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return err
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}
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q = `create table if not exists moods (
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id integer primary key,
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user_id integer,
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mood_category_id integer,
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value integer,
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time integer,
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foreign key(user_id) references users(id),
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foreign key(mood_category_id) references mood_categories(id)
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)`
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if _, err := s.db.Exec(q); err != nil {
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return err
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}
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q = `select count(*) from mood_category_texts mct inner join mood_categories mc on mct.mood_category_id=mc.id`
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var count int
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if err := s.db.Get(&count, q); err != nil {
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return err
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}
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if count == 0 {
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return s.populateMoods()
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}
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return nil
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}
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func (s *server) populateMoods() error {
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tx := s.db.MustBegin()
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res := tx.MustExec(`insert into mood_categories (name) values ('happy')`)
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id, err := res.LastInsertId()
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if err != nil {
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tx.Rollback()
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return err
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}
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tx.MustExec(`insert into mood_category_texts (mood_category_id,key,value) values (?,?,?)`,
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id, "😄", 1)
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tx.MustExec(`insert into mood_category_texts (mood_category_id,key,value) values (?,?,?)`,
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id, "😐", 0)
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tx.MustExec(`insert into mood_category_texts (mood_category_id,key,value) values (?,?,?)`,
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id, "😟", -1)
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return tx.Commit()
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}
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func (s *server) recordMood(mood getMoodsResponse, who UserID) error {
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q := `insert into moods (user_id,mood_category_id,value,time) values (?,?,?,?)`
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_, err := s.db.Exec(q, who.ID, mood.CategoryID, mood.Value, time.Now().Unix())
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return err
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}
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type UserID struct {
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db *sqlx.DB
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ID int64
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Email sql.NullString
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Verification int64
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DateCreated sql.NullInt64 `db:"dateCreated"`
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LastLogin sql.NullInt64 `db:"lastLogin"`
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salt int64
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str string
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}
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func (s *server) NewUserID() (UserID, error) {
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uid := UserID{
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db: s.db,
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DateCreated: sql.NullInt64{time.Now().Unix(), true},
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LastLogin: sql.NullInt64{time.Now().Unix(), true},
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Verification: rand.Int63(),
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}
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q := `insert into users (verification,dateCreated) values (?, ?)`
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res, err := s.db.Exec(q, uid.Verification, uid.DateCreated)
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if err != nil {
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return uid, err
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}
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id, err := res.LastInsertId()
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if err != nil {
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return uid, err
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}
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uid.ID = id
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idstr, err := s.h.EncodeInt64([]int64{id})
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if err != nil {
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return uid, err
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}
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uid.str = idstr
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return uid, nil
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}
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func (s *server) FromStr(uid, verification string) (UserID, error) {
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id := UserID{db: s.db}
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if uid == "" || verification == "" {
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return id, fmt.Errorf("user ID and verification not given.")
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}
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idInt, err := s.h.DecodeInt64WithError(uid)
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if err != nil {
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return id, err
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}
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q := `select id,email,verification,datecreated,lastlogin from users where id=?`
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if err := s.db.Get(&id, q, idInt[0]); err != nil {
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log.Error().
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Err(err).
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Msg("unable to select")
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return id, err
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}
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verify, err := s.h.EncodeInt64([]int64{id.Verification})
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if err != nil {
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log.Error().
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Err(err).
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Str("verify", verify).
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Str("id.Verification", verification).
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Msg("unable to encode")
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return id, err
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}
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if verify != verification {
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log.Debug().
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Str("verify", verify).
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Str("id.Verification", verification).
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Msg("verification mismatch")
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return id, fmt.Errorf("Invalid verification token")
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}
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return id, nil
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}
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func (u UserID) String() string {
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return u.str
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}
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type RegisterResponse struct {
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ID string
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DateCreated int64
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Validation string `json:",omitempty"`
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}
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func (s *server) handlerRegisterCode(w http.ResponseWriter, r *http.Request) {
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uid, err := s.NewUserID()
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if err != nil {
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w.WriteHeader(500)
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log.Error().Err(err).Msg("error from NewUserID")
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fmt.Fprintf(w, "Error registering user: %s", err)
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return
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}
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if err != nil {
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w.WriteHeader(500)
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log.Error().Err(err).Msg("error converting date")
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fmt.Fprintf(w, "Error registering user: %s", err)
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return
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}
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resp := RegisterResponse{
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ID: uid.String(),
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DateCreated: uid.DateCreated.Int64,
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}
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if *develop {
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resp.Validation, _ = s.h.EncodeInt64([]int64{uid.Verification})
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}
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out, err := json.Marshal(resp)
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if err != nil {
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w.WriteHeader(500)
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log.Error().Err(err).Msg("error from json.Marshal")
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fmt.Fprintf(w, "Error registering user: %s", err)
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return
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}
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fmt.Fprintf(w, "%s", string(out))
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}
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type getMoodsResponse struct {
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CategoryID int64 `db:"category_id"`
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CategoryName string `db:"category_name"`
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Key string
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Value int64
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}
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func (s *server) getMoods(w http.ResponseWriter, r *http.Request) {
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log.Debug().Interface("req", r).Msg("getMoods")
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q := `select mc.id category_id,mc.name category_name,mct.key,mct.value
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from mood_categories mc
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inner join mood_category_texts mct
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on mc.id=mct.mood_category_id`
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recs := []getMoodsResponse{}
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err := s.db.Select(&recs, q)
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if err != nil {
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log.Error().Err(err).Msg("could not retrieve mood categories and texts")
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w.WriteHeader(500)
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fmt.Fprintf(w, "Error getting moods: %s", err)
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return
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}
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resp, err := json.Marshal(recs)
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if err != nil {
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log.Error().Err(err).Msg("error from json.Marshal")
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w.WriteHeader(500)
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fmt.Fprintf(w, "Error getting moods: %s", err)
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return
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}
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fmt.Fprintf(w, "%s", string(resp))
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}
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func (s *server) checkUser(w http.ResponseWriter, r *http.Request) {
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uid := r.Header.Get("X-user-id")
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verify := r.Header.Get("X-user-validation")
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log.Debug().
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Str("uid", uid).
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Str("verify", verify).
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Msg("checkUser")
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user, err := s.FromStr(uid, verify)
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if err != nil {
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log.Error().Err(err).Msg("user not known")
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w.WriteHeader(http.StatusUnauthorized)
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fmt.Fprint(w, "User not known")
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return
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}
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j, err := json.Marshal(user)
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if err != nil {
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w.WriteHeader(500)
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log.Error().Err(err).Msg("could not marshal user")
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fmt.Fprintf(w, "%s", err)
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return
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}
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w.Write(j)
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}
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func (s *server) handleMood(w http.ResponseWriter, r *http.Request) {
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uid := r.Header.Get("X-user-id")
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verify := r.Header.Get("X-user-validation")
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log.Debug().
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Str("uid", uid).
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Str("verify", verify).
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Msg("handleMood")
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dec := json.NewDecoder(r.Body)
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happyReq := getMoodsResponse{}
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err := dec.Decode(&happyReq)
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if err != nil {
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log.Error().Err(err).Msg("error with happy")
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w.WriteHeader(400)
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fmt.Fprintf(w, err.Error())
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return
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}
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log.Debug().
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Interface("mood", happyReq).
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Msg("mood")
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user, err := s.FromStr(uid, verify)
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if err != nil {
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log.Error().
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Err(err).
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Msg("error getting user")
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w.WriteHeader(403)
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fmt.Fprintf(w, "Error: %s", err)
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return
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}
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if err := s.recordMood(happyReq, user); err != nil {
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log.Error().Err(err).Msg("error saving mood")
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w.WriteHeader(500)
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fmt.Fprintf(w, "Error: %s", err)
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return
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}
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fmt.Fprintf(w, "ok")
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}
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func (s *server) indexHandler(entryPoint string) func(w http.ResponseWriter, r *http.Request) {
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fn := func(w http.ResponseWriter, r *http.Request) {
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p := path.Clean(r.URL.Path)
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if s.box.Has(p) && !s.box.HasDir(p) {
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f, err := s.box.Find(p)
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if err != nil {
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log.Error().Err(err).Msg("Error finding file")
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w.WriteHeader(http.StatusNotFound)
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}
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w.Write(f)
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return
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}
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if s.box.HasDir(p) && s.box.Has(path.Join(p, "index.html")) {
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f, err := s.box.Find(path.Join(p, "index.html"))
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if err != nil {
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log.Error().Err(err).Msg("Error finding file")
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w.WriteHeader(http.StatusNotFound)
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}
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w.Write(f)
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return
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}
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if f, err := s.box.Find(p); err != nil {
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w.Write(f)
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return
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}
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w.WriteHeader(http.StatusNotFound)
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}
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return fn
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}
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func (s *server) routeSetup() *mux.Router {
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r := mux.NewRouter()
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api := r.PathPrefix("/v1/").Subrouter()
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api.HandleFunc("/moods", s.getMoods).Methods("GET")
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api.HandleFunc("/moods", s.handleMood).Methods("POST")
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api.HandleFunc("/user/code", s.handlerRegisterCode).Methods("GET")
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api.HandleFunc("/user/info", s.checkUser).Methods("GET")
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r.PathPrefix("/").HandlerFunc(s.indexHandler("/index.html"))
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return r
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}
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func (s *server) serve() {
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middle := s.routeSetup()
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log.Info().Str("addr", "http://"+s.addr).Msg("serving HTTP")
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graceful.Run(s.addr, 10*time.Second, middle)
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}
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