Adding models, DB access, signup, login

* Created Base, Auth, User and Admin models
* Added skeleton API structure containing: User signup, User & Admin
login, authorized zones, ping tests
* Simple user signup functional
* Skeleton user login functional, no means to verify as of yet
* Added POSTMAN file

.gitignore

@@ -13,3 +13,7 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+# Other
+prepack.db
+test_prepack.db

Prepack.postman_collection.json

@@ -0,0 +1,136 @@
+{
+	"info": {
+		"_postman_id": "6485c58d-0675-4f5d-9eed-4c2ecd8174ae",
+		"name": "Prepack",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
+	},
+	"item": [
+		{
+			"name": "V1 Doot",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "localhost:9091/v1/doot",
+					"host": [
+						"localhost"
+					],
+					"port": "9091",
+					"path": [
+						"v1",
+						"doot"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "V1 Secured Doot",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "localhost:9091/v1/sec/doot",
+					"host": [
+						"localhost"
+					],
+					"port": "9091",
+					"path": [
+						"v1",
+						"sec",
+						"doot"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "V1 Admin Doot",
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "localhost:9091/v1/adm/doot",
+					"host": [
+						"localhost"
+					],
+					"port": "9091",
+					"path": [
+						"v1",
+						"adm",
+						"doot"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "V1 Signup",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n    \"userkey\": \"NewUser\",\n    \"password\": \"NewPass\"\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "localhost:9091/v1/signup",
+					"host": [
+						"localhost"
+					],
+					"port": "9091",
+					"path": [
+						"v1",
+						"signup"
+					],
+					"query": [
+						{
+							"key": "userkey",
+							"value": "NewUser",
+							"disabled": true
+						},
+						{
+							"key": "password",
+							"value": "NewPass",
+							"disabled": true
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "V1 User Login",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n    \"userkey\": \"NewUser\",\n    \"password\": \"NewPass\"\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "localhost:9091/v1/login",
+					"host": [
+						"localhost"
+					],
+					"port": "9091",
+					"path": [
+						"v1",
+						"login"
+					]
+				}
+			},
+			"response": []
+		}
+	]
+}

database/database.go

@@ -0,0 +1,58 @@
+package database
+
+import (
+	"time"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+type Database struct {
+	*gorm.DB
+}
+
+var Db *gorm.DB
+
+func Init() *gorm.DB {
+	db, err := gorm.Open(sqlite.Open("prepack.db"), &gorm.Config{})
+	if err != nil {
+		panic(err)
+	}
+
+	//TODO GORM settings
+	database, err := db.DB()
+	if err != nil {
+		panic(err)
+	}
+
+	database.SetMaxIdleConns(10)
+	database.SetMaxOpenConns(50)
+	database.SetConnMaxLifetime(time.Minute * 30)
+
+	Db = db
+	return db
+}
+
+func InitTestDb() *gorm.DB {
+	db, err := gorm.Open(sqlite.Open("test_prepack.db"), &gorm.Config{})
+	if err != nil {
+		panic(err)
+	}
+
+	//TODO GORM settings
+	database, err := db.DB()
+	if err != nil {
+		panic(err)
+	}
+
+	database.SetMaxIdleConns(10)
+	database.SetMaxOpenConns(50)
+	database.SetConnMaxLifetime(time.Minute * 30)
+
+	Db = db
+	return db
+}
+
+func GetDb() *gorm.DB {
+	return Db
+}

go.mod

@@ -2,16 +2,22 @@ module github.com/yxzzy-wtf/gin-gonic-prepack
 
 go 1.18
 
+require github.com/gin-gonic/gin v1.7.7
+
 require (
 	github.com/gin-contrib/sse v0.1.0 // indirect
-	github.com/gin-gonic/gin v1.7.7 // indirect
 	github.com/go-playground/locales v0.14.0 // indirect
 	github.com/go-playground/universal-translator v0.18.0 // indirect
 	github.com/go-playground/validator/v10 v10.10.1 // indirect
+	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mattn/go-sqlite3 v1.14.12 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/ugorji/go/codec v1.2.7 // indirect
@@ -20,4 +26,6 @@ require (
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/protobuf v1.28.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gorm.io/driver/sqlite v1.3.2 // indirect
+	gorm.io/gorm v1.23.5 // indirect
 )

go.sum

@@ -15,12 +15,21 @@ github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl
 github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
 github.com/go-playground/validator/v10 v10.10.1 h1:uA0+amWMiglNZKZ9FJRKUAe9U3RX91eVn1JYXMWt7ig=
 github.com/go-playground/validator/v10 v10.10.1/go.mod h1:i+3WkQ1FvaUjjxh1kSvIA4dMGDBiPU55YFDl0WbKdWU=
+github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
+github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
+github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
@@ -36,6 +45,8 @@ github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ic
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/mattn/go-sqlite3 v1.14.12 h1:TJ1bhYJPV44phC+IMu1u2K/i5RriLTPe+yc68XDJ1Z0=
+github.com/mattn/go-sqlite3 v1.14.12/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -96,3 +107,8 @@ gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gorm.io/driver/sqlite v1.3.2 h1:nWTy4cE52K6nnMhv23wLmur9Y3qWbZvOBz+V4PrGAxg=
+gorm.io/driver/sqlite v1.3.2/go.mod h1:B+8GyC9K7VgzJAcrcXMRPdnMcck+8FgJynEehEPM16U=
+gorm.io/gorm v1.23.4/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
+gorm.io/gorm v1.23.5 h1:TnlF26wScKSvknUC/Rn8t0NLLM22fypYBlvj1+aH6dM=
+gorm.io/gorm v1.23.5/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=

main.go

@@ -1,7 +1,169 @@
 package main
 
-import _ "github.com/gin-gonic/gin"
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/yxzzy-wtf/gin-gonic-prepack/database"
+	"github.com/yxzzy-wtf/gin-gonic-prepack/models"
+
+	"github.com/gin-gonic/gin"
+	_ "github.com/golang-jwt/jwt"
+	"gorm.io/gorm"
+)
+
+func Migrate(g *gorm.DB) {
+	g.AutoMigrate(&models.User{})
+	g.AutoMigrate(&models.Admin{})
+}
 
 func main() {
+	db := database.Init()
+	Migrate(db)
 
+	r := gin.Default()
+	v1 := r.Group("/v1")
+
+	// Ping functionality
+	v1.GET("/doot", doot())
+
+	// Standard user login
+	v1.POST("/signup", userSignup())
+	v1.POST("/login", userLogin())
+	v1Sec := v1.Group("/sec", userAuth())
+
+	v1Sec.GET("/doot", doot())
+
+	// Administrative login
+	v1.POST("/admin", adminLogin())
+	v1Admin := v1.Group("/adm", adminAuth())
+
+	v1Admin.GET("/doot", doot())
+
+	// Start server
+	if err := http.ListenAndServe(":9091", r); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func doot() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.JSON(http.StatusOK, map[string]string{"snoot": "dooted"})
+	}
+}
+
+type login struct {
+	UserKey   string `json:"userkey" binding:"required"`
+	Password  string `json:"password" binding:"required"`
+	TwoFactor string `json:"twofactorcode"`
+}
+
+type signup struct {
+	UserKey  string `json:"userkey" binding:"required"`
+	Password string `json:"password" binding:"required"`
+}
+
+type failmsg struct {
+	Reason string `json:"reason"`
+}
+
+const JwtHeader = "jwt"
+const ServicePath = "TODOPATH"
+const ServiceDomain = "TODODOMAIN"
+
+func userLogin() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var loginVals login
+		if err := c.ShouldBind(&loginVals); err != nil {
+			c.AbortWithStatusJSON(http.StatusBadRequest, failmsg{"Requires username and password"})
+		}
+
+		u := models.User{}
+		if err := u.ByEmail(loginVals.UserKey); err != nil {
+			c.AbortWithStatus(http.StatusUnauthorized)
+			return
+		}
+
+		err := u.CheckPassword(loginVals.Password)
+		if err != nil {
+			c.AbortWithStatus(http.StatusUnauthorized)
+			return
+		}
+
+		err = u.ValidateTwoFactor(loginVals.TwoFactor, time.Now())
+		if err != nil {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, failmsg{err.Error()})
+			return
+		}
+
+		if !u.Verified {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, failmsg{"not yet verified"})
+			return
+		}
+
+		jwt, maxAge := u.GetJwt()
+		c.SetCookie(JwtHeader, jwt, maxAge, ServicePath, ServiceDomain, true, true)
+	}
+}
+
+func userSignup() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var signupVals signup
+		if err := c.ShouldBind(&signupVals); err != nil {
+			c.AbortWithStatusJSON(http.StatusBadRequest, failmsg{"Requires username and password"})
+			return
+		}
+
+		u := models.User{
+			Email: signupVals.UserKey,
+		}
+
+		if err := u.SetPassword(signupVals.Password); err != nil {
+			c.AbortWithStatusJSON(http.StatusBadRequest, failmsg{"Bad password"})
+			return
+		}
+
+		if err := database.Db.Model(&u).Create(&u).Error; err != nil {
+			if err.Error() == "UNIQUE constraint failed: users.email" {
+				c.AbortWithStatusJSON(http.StatusInternalServerError, failmsg{"already exists"})
+			} else {
+				fmt.Println(fmt.Errorf("error: %w", err))
+				c.AbortWithStatus(http.StatusInternalServerError)
+			}
+			return
+		}
+
+		c.JSON(http.StatusOK, map[string]string{"id": u.Uid.String()})
+	}
+}
+
+func adminLogin() gin.HandlerFunc {
+	return func(c *gin.Context) {
+
+	}
+}
+
+func userAuth() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		jwt := c.GetHeader(JwtHeader)
+		if jwt == "" {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, failmsg{"Requires `" + jwt + "` header"})
+			return
+		}
+
+	}
+}
+
+func adminAuth() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		jwt := c.GetHeader(JwtHeader)
+		if jwt == "" {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, failmsg{"Requires `" + jwt + "` header"})
+			return
+		}
+
+		c.AbortWithStatus(http.StatusUnauthorized)
+	}
 }

models/admin.go

@@ -0,0 +1,24 @@
+package models
+
+import (
+	"errors"
+
+	"github.com/yxzzy-wtf/gin-gonic-prepack/database"
+)
+
+type Admin struct {
+	Auth
+	Email string
+}
+
+func (a *Admin) GetJwt() (string, int) {
+	return "", 0
+}
+
+func (a *Admin) ByEmail(email string) error {
+	if err := database.Db.Where("email = ?", email).First(&a).Error; err != nil {
+		return errors.New("not found")
+	}
+
+	return nil
+}

models/auth.go

@@ -0,0 +1,43 @@
+package models
+
+import (
+	"errors"
+	"time"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+type Auth struct {
+	Base
+	PasswordHash      string
+	TwoFactorSecret   string
+	TwoFactorRecovery string
+	Verified          bool
+}
+
+func (a *Auth) SetPassword(pass string) error {
+	passHash, _ := bcrypt.GenerateFromPassword([]byte(pass), bcrypt.DefaultCost)
+	a.PasswordHash = string(passHash)
+	return nil
+}
+
+func (a *Auth) CheckPassword(pass string) error {
+	return bcrypt.CompareHashAndPassword([]byte(a.PasswordHash), []byte(pass))
+}
+
+func (a *Auth) ValidateTwoFactor(tfCode string, stamp time.Time) error {
+	if tfCode == "" && a.TwoFactorSecret != "" {
+		return errors.New("requires 2FA")
+	} else if tfCode == "" && a.TwoFactorSecret == "" {
+		return nil
+	}
+
+	//TODO two factor
+	if len(tfCode) == 6 {
+		// Test 2FA
+		return errors.New("2FA invalid")
+	} else {
+		// May be a renewal code
+		return errors.New("unlock invalid")
+	}
+}

models/base.go

@@ -0,0 +1,31 @@
+package models
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type Base struct {
+	Uid     uuid.UUID `gorm:"type:uuid;primary_key;"`
+	Created time.Time
+	Updated time.Time
+	Deleted time.Time `sql:"index"`
+	Tenant  uuid.UUID
+}
+
+func (b *Base) BeforeCreate(scope *gorm.DB) error {
+	b.Uid = uuid.New()
+	b.Created = time.Now()
+	return nil
+}
+
+func (b *Base) BeforeSave(tx *gorm.DB) error {
+	b.Updated = time.Now()
+	return nil
+}
+
+func (b *Base) Delete() {
+	b.Deleted = time.Now()
+}

models/user.go

@@ -0,0 +1,24 @@
+package models
+
+import (
+	"errors"
+
+	"github.com/yxzzy-wtf/gin-gonic-prepack/database"
+)
+
+type User struct {
+	Auth
+	Email string `gorm:"unique"`
+}
+
+func (u *User) GetJwt() (string, int) {
+	return "", 0
+}
+
+func (u *User) ByEmail(email string) error {
+	if err := database.Db.Where("email = ?", email).First(&u).Error; err != nil {
+		return errors.New("not found")
+	}
+
+	return nil
+}