diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml index b268b1b..e0f9642 100644 --- a/.github/workflows/main.yml +++ b/.github/workflows/main.yml @@ -19,3 +19,7 @@ jobs: run: go build - name: Passes tests run: go test ./... + - name: Passes go vet, fmt + run: | + go vet + gofmt -l . \ No newline at end of file diff --git a/Procfile b/Procfile new file mode 100644 index 0000000..8736aaa --- /dev/null +++ b/Procfile @@ -0,0 +1 @@ +web: bin/teach-la-go-backend \ No newline at end of file diff --git a/db/class.go b/db/class.go index 3c7b312..74561cb 100644 --- a/db/class.go +++ b/db/class.go @@ -4,14 +4,12 @@ package db // It provides functions for converting the struct // to firebase-digestible types. type Class struct { - Thumbnail int64 `firestore:"thumbnail" json:"thumbnail"` - Name string `firestore:"name" json:"name"` - Creator string `firestore:"creator" json:"creator"` - Instructors []string `firestore:"instructors" json:"instructors"` - Members []string `firestore:"members" json:"members"` - Programs []string `json:"programs"` - CID string `json:"cid"` - WID string `json:"wid"` + Thumbnail int64 `firestore:"thumbnail" json:"thumbnail"` + Name string `firestore:"name" json:"name"` + Creator string `firestore:"creator" json:"creator"` + Instructors []string `firestore:"instructors" json:"instructors"` + Members []string `firestore:"members" json:"members"` + Programs []string `json:"programs"` + CID string `json:"cid"` + WID string `json:"wid"` } - - diff --git a/db/classManagement.go b/db/classManagement.go index 5165c28..dd7e1ac 100644 --- a/db/classManagement.go +++ b/db/classManagement.go @@ -4,22 +4,22 @@ import ( "encoding/json" "net/http" - "../tools/requests" + "github.com/uclaacm/teach-la-go-backend/tools/requests" ) // HandleCreateClass is the handler for creating a new class. -// It takes the UID of the creator, the name of the class, and a thunmbnail id. +// It takes the UID of the creator, the name of the class, and a thunmbnail id. func (d *DB) HandleCreateClass(w http.ResponseWriter, r *http.Request) { - + var ( err error ) //create an anonymous structure to handle requests req := struct { - UID string `json:"uid"` - Name string `json:"name"` - Thumbnail int64 `json:"thumbnail"` + UID string `json:"uid"` + Name string `json:"name"` + Thumbnail int64 `json:"thumbnail"` }{} //read JSON from request body if err = requests.BodyTo(r, &req); err != nil { @@ -31,30 +31,26 @@ func (d *DB) HandleCreateClass(w http.ResponseWriter, r *http.Request) { http.Error(w, "Error occurred in reading UID.", http.StatusInternalServerError) return } - + if req.Name == "" { http.Error(w, "Error occurred in reading Name.", http.StatusInternalServerError) return } - if req.Thumbnail < 0 || req.Thumbnail >= ThumbnailCount { + if req.Thumbnail < 0 || req.Thumbnail >= ThumbnailCount { http.Error(w, "Bad thumbnail provided, Exiting", http.StatusInternalServerError) return } - - // structure for class info class := Class{ - Thumbnail: req.Thumbnail, - Name: req.Name, - Creator: req.UID, + Thumbnail: req.Thumbnail, + Name: req.Name, + Creator: req.UID, Instructors: []string{req.UID}, - Members: []string{}, - Programs: []string{}, - } - - + Members: []string{}, + Programs: []string{}, + } // create the class cid, err := d.CreateClass(r.Context(), &class) @@ -66,7 +62,7 @@ func (d *DB) HandleCreateClass(w http.ResponseWriter, r *http.Request) { //create an wid for this class wid, err := d.MakeAlias(r.Context(), cid, ClassesAliasPath) - //Update class info + //Update class info // create the class err = d.UpdateClassWID(r.Context(), cid, wid) @@ -77,7 +73,7 @@ func (d *DB) HandleCreateClass(w http.ResponseWriter, r *http.Request) { return } - // read the class document just created + // read the class document just created c, err := d.GetClass(r.Context(), cid) if err != nil || c == nil { http.Error(w, "Class does not exist", http.StatusNotFound) @@ -91,17 +87,17 @@ func (d *DB) HandleCreateClass(w http.ResponseWriter, r *http.Request) { } } -// HandleGetClass takes the UID (either of a member or an instructor) -// and a CID (wid) as a JSON, and returns an object representing the class. +// HandleGetClass takes the UID (either of a member or an instructor) +// and a CID (wid) as a JSON, and returns an object representing the class. // If the given UID is not a member or an instructor, error is returned func (d *DB) HandleGetClass(w http.ResponseWriter, r *http.Request) { - + var err error //create an anonymous structure to handle requests req := struct { - UID string `json:"uid"` - WID string `json:"cid"` + UID string `json:"uid"` + WID string `json:"cid"` }{} //read JSON from request body @@ -130,7 +126,7 @@ func (d *DB) HandleGetClass(w http.ResponseWriter, r *http.Request) { } //check if the uid exists in the members list or instructor list - is_in := false; + is_in := false for _, m := range c.Members { if m == req.UID { @@ -139,13 +135,13 @@ func (d *DB) HandleGetClass(w http.ResponseWriter, r *http.Request) { } } - for _, i := range c.Instructors{ + for _, i := range c.Instructors { if i == req.UID { is_in = true break } } - + // if UID was not in class, return error if !is_in { http.Error(w, "Couldn't find user in class", http.StatusInternalServerError) @@ -160,8 +156,8 @@ func (d *DB) HandleGetClass(w http.ResponseWriter, r *http.Request) { } } -// HandleJoinClass takes a UID and cid(wid) as a JSON, and attempts to -// add the UID to the class given by cid. The updated struct of the class is returned as a +// HandleJoinClass takes a UID and cid(wid) as a JSON, and attempts to +// add the UID to the class given by cid. The updated struct of the class is returned as a // JSON func (d *DB) HandleJoinClass(w http.ResponseWriter, r *http.Request) { @@ -170,8 +166,8 @@ func (d *DB) HandleJoinClass(w http.ResponseWriter, r *http.Request) { //create an anonymous structure to handle requests req := struct { - UID string `json:"uid"` - WID string `json:"cid"` + UID string `json:"uid"` + WID string `json:"cid"` }{} //read JSON from request body @@ -181,7 +177,7 @@ func (d *DB) HandleJoinClass(w http.ResponseWriter, r *http.Request) { } if req.UID == "" { http.Error(w, "Error occurred in reading UID", http.StatusInternalServerError) - return + return } if req.WID == "" { http.Error(w, "error occurred in reading WID", http.StatusInternalServerError) @@ -236,7 +232,6 @@ func (d *DB) HandleJoinClass(w http.ResponseWriter, r *http.Request) { } - func (d *DB) HandleLeaveClass(w http.ResponseWriter, r *http.Request) { var ( @@ -245,8 +240,8 @@ func (d *DB) HandleLeaveClass(w http.ResponseWriter, r *http.Request) { //create an anonymous structure to handle requests req := struct { - UID string `json:"uid"` - CID string `json:"cid"` + UID string `json:"uid"` + CID string `json:"cid"` }{} //read JSON from request body diff --git a/db/constants.go b/db/constants.go index a344c70..9cf8a4d 100755 --- a/db/constants.go +++ b/db/constants.go @@ -4,7 +4,7 @@ import ( "errors" "time" - "../tools/log" + "github.com/uclaacm/teach-la-go-backend/tools/log" ) const ( @@ -32,7 +32,7 @@ const ( // UsersPath describes the path to the user management // endpoint UsersPath = "users" - + // ClassesPath describes the path to the classes // management endpoint. ClassesPath = "classes" @@ -42,8 +42,6 @@ const ( // ClassesAliasPath describes the path to the collection with 3 word id => hash mapping for classes ClassesAliasPath = "classes_alias" - - ) // LanguageName acquires the name for the language desecribed diff --git a/db/db.go b/db/db.go index 88bbdee..a58534d 100755 --- a/db/db.go +++ b/db/db.go @@ -2,6 +2,7 @@ package db import ( "context" + "fmt" "os" "strings" @@ -18,32 +19,28 @@ type DB struct { *firestore.Client } -// OpenFromCreds returns a pointer to a database client based on -// JSON credentials pointed to by the provided path. +// OpenFromEnv returns a pointer to a database client based on +// JSON credentials given by the environment variable. // Returns an error if it fails at any point. -func OpenFromCreds(ctx context.Context, path string) (*DB, error) { - // check, using os.Stat(), that the file exists. If it does not exist, - // then fail. - if _, err := os.Stat(path); err != nil { - return nil, err +func OpenFromEnv(ctx context.Context) (*DB, error) { + cfg := os.Getenv("TLACFG") + if cfg == "" { + return nil, fmt.Errorf("no $TLACFG environment variable provided") } // set up the app through which our client will be // acquired. - opt := option.WithCredentialsFile(path) + opt := option.WithCredentialsJSON([]byte(cfg)) app, err := firebase.NewApp(ctx, nil, opt) + if err != nil { + return nil, err + } // acquire the firestore client, fail if we cannot. client, err := app.Firestore(ctx) return &DB{Client: client}, err } -// OpenFromEnv calls OpenFromCreds with the path -// provided by your environment variable $CFGPATH. -func OpenFromEnv(ctx context.Context) (*DB, error) { - return OpenFromCreds(ctx, os.Getenv(DefaultEnvVar)) -} - // CreateUser creates the default user and program documents, // then returns the object for said User. func (d *DB) CreateUser(ctx context.Context) (*User, error) { @@ -164,7 +161,6 @@ func (d *DB) DeleteProgram(ctx context.Context, uid string) error { return err } - // CreateClass creates a new class document to match the provided struct. // The class's UID is returned with an error, should one occur. func (d *DB) CreateClass(ctx context.Context, c *Class) (string, error) { @@ -184,16 +180,16 @@ func (d *DB) CreateClass(ctx context.Context, c *Class) (string, error) { func (d *DB) UpdateClassWID(ctx context.Context, cid string, wid string) error { doc := d.Collection(ClassesPath).Doc(cid) - _, err := doc.Update(ctx, []firestore.Update{{Path: "WID", Value: wid }}) + _, err := doc.Update(ctx, []firestore.Update{{Path: "WID", Value: wid}}) return err } -// AddClassToUser takes a uid and a pid, +// AddClassToUser takes a uid and a pid, // and adds the pid to the user's list of programs func (d *DB) AddClassToUser(ctx context.Context, uid string, cid string) error { //get the user doc - doc := d.Collection(UsersPath).Doc(uid) + doc := d.Collection(UsersPath).Doc(uid) //add the class id _, err := doc.Update(ctx, []firestore.Update{ @@ -208,7 +204,7 @@ func (d *DB) AddClassToUser(ctx context.Context, uid string, cid string) error { func (d *DB) AddUserToClass(ctx context.Context, uid string, cid string) error { //get the class doc - doc := d.Collection(ClassesPath).Doc(cid) + doc := d.Collection(ClassesPath).Doc(cid) //add the class id _, err := doc.Update(ctx, []firestore.Update{ @@ -223,7 +219,7 @@ func (d *DB) AddUserToClass(ctx context.Context, uid string, cid string) error { func (d *DB) RemoveUserFromClass(ctx context.Context, uid string, cid string) error { //get the class doc - doc := d.Collection(ClassesPath).Doc(cid) + doc := d.Collection(ClassesPath).Doc(cid) //add the class id _, err := doc.Update(ctx, []firestore.Update{ @@ -238,7 +234,7 @@ func (d *DB) RemoveUserFromClass(ctx context.Context, uid string, cid string) er func (d *DB) RemoveClassFromUser(ctx context.Context, uid string, cid string) error { //get the user doc - doc := d.Collection(UsersPath).Doc(uid) + doc := d.Collection(UsersPath).Doc(uid) //remove the class id _, err := doc.Update(ctx, []firestore.Update{ @@ -265,22 +261,22 @@ func (d *DB) GetClass(ctx context.Context, cid string) (*Class, error) { if err := doc.DataTo(c); err != nil { return nil, err } - + return c, err } -// MakeAlias takes an id (usually pid or cid), allocates a 3 word id(wid), and +// MakeAlias takes an id (usually pid or cid), allocates a 3 word id(wid), and // stores it in Firebase. The generated wid is a string, with words comma seperated func (d *DB) MakeAlias(ctx context.Context, uid string, path string) (string, error) { // convert uid into a 36 bit hash - //aid := tinycrypt.MakeHash(uid) - aid := tinycrypt.GenerateHash() + //aid := tinycrypt.MakeHash(uid) + aid := tinycrypt.GenerateHash() // convert that to a 3 word id wid_list := tinycrypt.GenerateWord36(aid) // the result is an array,so concat into a single string - wid := strings.Join(wid_list, ",") + wid := strings.Join(wid_list, ",") // get the mapping collection col := d.Collection(path) @@ -291,27 +287,25 @@ func (d *DB) MakeAlias(ctx context.Context, uid string, path string) (string, er for snap.Exists() == true { aid++ - if aid >= 0xFFFFFFFFF{ + if aid >= 0xFFFFFFFFF { aid = 0 } wid_list = tinycrypt.GenerateWord36(aid) - wid = strings.Join(wid_list, ",") - + wid = strings.Join(wid_list, ",") + snap, err = col.Doc(wid).Get(ctx) } - + //create mapping _, err = col.Doc(wid).Set(ctx, map[string]interface{}{ - "target" : uid, + "target": uid, }) return strings.Join(wid_list, ","), err } - - // GetUIDFromWID returns the UID given a WID func (d *DB) GetUIDFromWID(ctx context.Context, wid string, path string) (string, error) { @@ -322,7 +316,7 @@ func (d *DB) GetUIDFromWID(ctx context.Context, wid string, path string) (string } t := struct { - Target string `firestore:target` + Target string `firestore:target` }{} err = doc.DataTo(&t) diff --git a/db/programManagement.go b/db/programManagement.go index 927f9a5..9f75ad7 100755 --- a/db/programManagement.go +++ b/db/programManagement.go @@ -5,7 +5,7 @@ import ( "encoding/json" "net/http" - "../tools/requests" + "github.com/uclaacm/teach-la-go-backend/tools/requests" ) /** @@ -22,7 +22,7 @@ func (d *DB) HandleGetProgram(w http.ResponseWriter, r *http.Request) { if ctxID, ok := r.Context().Value("getProgram").(string); ok { pid = ctxID } else { - pid = r.URL.Query().Get("programId") + pid = r.URL.Query().Get("pid") } // attempt to acquire doc. @@ -114,7 +114,7 @@ func (d *DB) HandleInitializeProgram(w http.ResponseWriter, r *http.Request) { ctx := context.WithValue(r.Context(), "getProgram", p) d.HandleGetProgram(w, r.WithContext(ctx)) } - + /** * updateProgramData * Body: @@ -153,8 +153,8 @@ func (d *DB) HandleUpdateProgram(w http.ResponseWriter, r *http.Request) { */ func (d *DB) HandleDeleteProgram(w http.ResponseWriter, r *http.Request) { // acquire parameters. - uid := r.URL.Query().Get("userId") - pid := r.URL.Query().Get("programId") + uid := r.URL.Query().Get("uid") + pid := r.URL.Query().Get("pid") var ( // u *User diff --git a/db/userManagement.go b/db/userManagement.go index de05403..03c749d 100755 --- a/db/userManagement.go +++ b/db/userManagement.go @@ -5,7 +5,7 @@ import ( "encoding/json" "net/http" - "../tools/requests" + "github.com/uclaacm/teach-la-go-backend/tools/requests" ) /** @@ -40,7 +40,7 @@ func (d *DB) HandleGetUser(w http.ResponseWriter, r *http.Request) { if ctxUser := r.Context().Value("user"); ctxUser == nil { // attempt to get the complete user struct using URL // params. - u, err = d.GetUser(r.Context(), query.Get("id")) + u, err = d.GetUser(r.Context(), query.Get("uid")) if err != nil { http.Error(w, "error occurred in reading document.", http.StatusInternalServerError) return @@ -73,8 +73,6 @@ func (d *DB) HandleGetUser(w http.ResponseWriter, r *http.Request) { } } - - // convert to JSON. if userJSON, err = json.Marshal(resp); err != nil { http.Error(w, "error occurred in writing response.", http.StatusInternalServerError) diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..8370f37 --- /dev/null +++ b/go.mod @@ -0,0 +1,11 @@ +module github.com/uclaacm/teach-la-go-backend + +go 1.14 + +require ( + cloud.google.com/go/firestore v1.2.0 + firebase.google.com/go v3.12.0+incompatible + github.com/heroku/x v0.0.22 + github.com/uclaacm/teach-la-go-backend-tinycrypt v0.0.0-20200405225304-96203c76bd07 + google.golang.org/api v0.21.0 +) diff 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+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k= +rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= +rsc.io/goversion v1.0.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo= +rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0= +rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA= diff --git a/middleware/logRequest.go b/middleware/logRequest.go index 9e7066d..893403a 100755 --- a/middleware/logRequest.go +++ b/middleware/logRequest.go @@ -3,7 +3,7 @@ package middleware import ( "net/http" - "../tools/log" + "github.com/uclaacm/teach-la-go-backend/tools/log" ) // LogRequest automatically logs all relevant information about a request object diff --git a/server.go b/server.go index bbd3306..ef54786 100755 --- a/server.go +++ b/server.go @@ -8,23 +8,20 @@ import ( "os/signal" "time" - "./db" - m "./middleware" + _ "github.com/heroku/x/hmetrics/onload" + "github.com/uclaacm/teach-la-go-backend/db" + m "github.com/uclaacm/teach-la-go-backend/middleware" ) -// PORT defines where we serve the backend. -const PORT = ":8081" +// DEFAULTPORT to serve on. +const DEFAULTPORT = "8081" func main() { - // set up context for main routine. - mainContext := context.Background() - - // acquire DB client. - // fails early if we cannot acquire one. var ( d *db.DB err error ) + if d, err = db.OpenFromEnv(context.Background()); err != nil { log.Fatalf("failed to open DB client. %s", err) } @@ -50,7 +47,6 @@ func main() { router.HandleFunc("/class/get", d.HandleGetClass) router.HandleFunc("/class/join", d.HandleJoinClass) router.HandleFunc("/class/leave", d.HandleLeaveClass) - // fallback route router.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { @@ -59,9 +55,16 @@ func main() { log.Printf("endpoints initialized.") + // check for PORT variable. + port := os.Getenv("PORT") + if port == "" { + log.Printf("no $PORT environment variable provided, defaulting to '%s'", DEFAULTPORT) + port = "8081" + } + // server configuration s := &http.Server{ - Addr: PORT, + Addr: ":" + port, Handler: m.LogRequest(router), ReadTimeout: 10 * time.Second, WriteTimeout: 10 * time.Second, @@ -73,7 +76,7 @@ func main() { kill := make(chan os.Signal, 1) signal.Notify(kill, os.Interrupt) go func() { - log.Printf("serving on %s", PORT) + log.Printf("serving on :%s", port) log.Fatal(s.ListenAndServe()) }() @@ -82,7 +85,7 @@ func main() { log.Printf("received kill signal, attempting to gracefully shut down.") // server has 10 seconds from interrupt to gracefully shutdown. - timeout, terminate := context.WithDeadline(mainContext, time.Now().Add(10*time.Second)) + timeout, terminate := context.WithDeadline(context.Background(), time.Now().Add(10*time.Second)) defer terminate() s.Shutdown(timeout) } diff --git a/server_test.go b/server_test.go index 8f8f443..8f597a5 100755 --- a/server_test.go +++ b/server_test.go @@ -9,7 +9,7 @@ import ( "net/http/httptest" "testing" - "./db" + "github.com/uclaacm/teach-la-go-backend/db" ) // PORT defines where we serve the backend. @@ -25,11 +25,11 @@ type Response struct { func TestRigDB(t *testing.T) { var ( - d *db.DB // stores instance of connection with database - err error - res Response // structure to store response fron database - res_student Response // structure to store response fron database - class_id string + d *db.DB // stores instance of connection with database + err error + res Response // structure to store response fron database + res_student Response // structure to store response fron database + class_id string ) t.Logf("Testing initialization of database...") @@ -88,8 +88,8 @@ func TestRigDB(t *testing.T) { // build query p := req.URL.Query() - p.Add("userId", res.UserData.UID) - p.Add("programId", res.UserData.Programs[0]) + p.Add("uid", res.UserData.UID) + p.Add("pid", res.UserData.Programs[0]) req.URL.RawQuery = p.Encode() rr := httptest.NewRecorder() @@ -108,7 +108,7 @@ func TestRigDB(t *testing.T) { t.Run("Create program", func(t *testing.T) { t.Logf("Building query") - // create JSON for a new program + // create JSON for a new program pr := struct { Code string DateCreated string @@ -168,14 +168,14 @@ func TestRigDB(t *testing.T) { //p.Add("userId", res.UserData.UID) //p.Add("includePrograms", res.UserData.Programs[0]) t.Log(res.UserData.UID) - p.Add("id", res.UserData.UID) + p.Add("uid", res.UserData.UID) p.Add("programs", "true") req.URL.RawQuery = p.Encode() rr := httptest.NewRecorder() handler := http.HandlerFunc(d.HandleGetUser) - // struct to recieve response + // struct to recieve response resp := struct { UserData *db.User `json:"userData"` Programs []db.Program `json:"programs"` @@ -190,32 +190,32 @@ func TestRigDB(t *testing.T) { t.Fatal("Failed to read response") } - json.Unmarshal([]byte(j), resp) + json.Unmarshal([]byte(j), &resp) //TODO check if correct programs are made //t.Logf(resp.Programs[0].Name) - + if status := rr.Code; status != http.StatusOK { t.Fatal("Get user failed") } - + }) // Test creating a class from a user - t.Run("Create Class", func(t *testing.T){ + t.Run("Create Class", func(t *testing.T) { - // create JSON for a new program + // create JSON for a new program pr := struct { - Uid string - Name string - Thumbnail int + Uid string + Name string + Thumbnail int }{ res.UserData.UID, "TestClass", 1, } - pro, err := json.Marshal(&pr) + pro, err := json.Marshal(&pr) if err != nil { t.Fatal("Failed to create JSON") @@ -246,7 +246,6 @@ func TestRigDB(t *testing.T) { json.Unmarshal([]byte(j), &class) class_id = class.WID - if status := rr.Code; status != http.StatusOK { t.Fatal("Create program failed") @@ -280,18 +279,18 @@ func TestRigDB(t *testing.T) { }) // Test adding a user to class - t.Run("Join Class", func(t *testing.T){ + t.Run("Join Class", func(t *testing.T) { - // create JSON for a new program + // create JSON for a new program pr := struct { - Uid string - Cid string + Uid string + Cid string }{ res.UserData.UID, class_id, } - pro, err := json.Marshal(&pr) + pro, err := json.Marshal(&pr) if err != nil { t.Fatal("Failed to create JSON") @@ -305,7 +304,7 @@ func TestRigDB(t *testing.T) { if err != nil { t.Fatal("Failed to test create program") } - + rr := httptest.NewRecorder() handler := http.HandlerFunc(d.HandleJoinClass)