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golang-fave
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Engine error page, connection to MySQL

Vova Tkach 6 years ago
parent
142aa82d83
commit
e7e6ee735b
6 changed files with 78 additions and 0 deletions
Unified View Show Diff Stats
  1. 21 0
      backend.go
  2. 3 0
      engine/wrapper/resources/templates/page.engerror.go
  3. 23 0
      engine/wrapper/resources/templates/page.engerror.html
  4. 21 0
      engine/wrapper/static.go
  5. 8 0
      engine/wrapper/wrapper.go
  6. 2 0
      frontend.go

+ 21 - 0
backend.go
View File 

@@ -1,6 +1,10 @@
 
 package main
 
 package main
 
 
 
 import (
 
 import (
 
+	"database/sql"
 
+
 
+	_ "github.com/go-sql-driver/mysql"
 
+
 
 	"golang-fave/engine/wrapper"
 
 	"golang-fave/engine/wrapper"
 
 	templates "golang-fave/engine/wrapper/resources/templates"
 
 	templates "golang-fave/engine/wrapper/resources/templates"
 
 	utils "golang-fave/engine/wrapper/utils"
 
 	utils "golang-fave/engine/wrapper/utils"
 
@@ -12,6 +16,23 @@ func handlerBackEnd(wrapper *wrapper.Wrapper) bool {
 
 		return wrapper.TmplBackEnd(templates.CpMySQL, nil)
 
 		return wrapper.TmplBackEnd(templates.CpMySQL, nil)
 
 	}
 
 	}
 
 
 
+	// Connect to database
 
+	mc, err := utils.MySqlConfigRead(wrapper.DirVHostHome)
 
+	if wrapper.EngineErrMsgOnError(err) {
 
+		return true
 
+	}
 
+	db, err := sql.Open("mysql", mc.User+":"+mc.Password+"@tcp("+mc.Host+":"+mc.Port+")/"+mc.Name)
 
+	if wrapper.EngineErrMsgOnError(err) {
 
+		return true
 
+	}
 
+	defer db.Close()
 
+	err = db.Ping()
 
+	if wrapper.EngineErrMsgOnError(err) {
 
+		return true
 
+	}
 
+
 
+	// Check if any user exists
 
+
 
 	// Login page
 
 	// Login page
 
 	return wrapper.TmplBackEnd(templates.CpLogin, nil)
 
 	return wrapper.TmplBackEnd(templates.CpLogin, nil)
 
 }
 
 }

+ 3 - 0
engine/wrapper/resources/templates/page.engerror.go
View File 

@@ -0,0 +1,3 @@
 
+package templates
 
+
 
+var PageEngError = []byte(`<!DOCTYPE html><html lang="en"><head><meta charset="utf-8" /><meta name="theme-color" content="#205081" /><title>Engine Error</title><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /><meta name="viewport" content="width=device-width, initial-scale=0.8, maximum-scale=0.8" /><link rel="shortcut icon" href="{{$.System.PathIcoFav}}" type="image/x-icon" /><link rel="stylesheet" type="text/css" media="all" href="{{$.System.PathCssStyles}}" /></head><body><div class="wrapper"><div class="logo"><div class="svg"><img src="{{$.System.PathSvgLogo}}" width="150" height="150" /></div></div><h1>Engine Error</h1><h2>{{$.Data.ErrorMessage}}</h2></div></body></html>`)

+ 23 - 0
engine/wrapper/resources/templates/page.engerror.html
View File 

@@ -0,0 +1,23 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+	<head>
 
+		<meta charset="utf-8" />
 
+		<meta name="theme-color" content="#205081" />
 
+		<title>Engine Error</title>
 
+		<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
 
+		<meta name="viewport" content="width=device-width, initial-scale=0.8, maximum-scale=0.8" />
 
+		<link rel="shortcut icon" href="{{$.System.PathIcoFav}}" type="image/x-icon" />
 
+		<link rel="stylesheet" type="text/css" media="all" href="{{$.System.PathCssStyles}}" />
 
+	</head>
 
+	<body>
 
+		<div class="wrapper">
 
+			<div class="logo">
 
+				<div class="svg">
 
+					<img src="{{$.System.PathSvgLogo}}" width="150" height="150" />
 
+				</div>
 
+			</div>
 
+			<h1>Engine Error</h1>
 
+			<h2>{{$.Data.ErrorMessage}}</h2>
 
+		</div>
 
+	</body>
 
+</html>

+ 21 - 0
engine/wrapper/static.go
View File 

@@ -177,3 +177,24 @@ func (this *Wrapper) printTmplPageError(perr error) {
 
 		},
 
 		},
 
 	})
 
 	})
 
 }
 
 }
 
+
 
+func (this *Wrapper) printEnginePageError(perr error) {
 
+	tmpl, err := template.New("template").Parse(string(templates.PageEngError))
 
+	if err != nil {
 
+		(*this.W).Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 
+		(*this.W).WriteHeader(http.StatusInternalServerError)
 
+		(*this.W).Header().Set("Content-Type", "text/html")
 
+		(*this.W).Write([]byte("<h1>Critical engine error!</h1>"))
 
+		(*this.W).Write([]byte("<h2>" + perr.Error() + "</h2>"))
 
+		return
 
+	}
 
+	(*this.W).Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 
+	(*this.W).WriteHeader(http.StatusInternalServerError)
 
+	(*this.W).Header().Set("Content-Type", "text/html")
 
+	tmpl.Execute(*this.W, tmplDataAll{
 
+		System: this.tmplGetSystemData(),
 
+		Data: tmplDataErrorMsg{
 
+			ErrorMessage: perr.Error(),
 
+		},
 
+	})
 
+}

+ 8 - 0
engine/wrapper/wrapper.go
View File 

@@ -206,3 +206,11 @@ func (this *Wrapper) TmplBackEnd(tcont []byte, data interface{}) bool {
 
 	})
 
 	})
 
 	return true
 
 	return true
 
 }
 
 }
 
+
 
+func (this *Wrapper) EngineErrMsgOnError(err error) bool {
 
+	if err != nil {
 
+		this.printEnginePageError(err)
 
+		return true
 
+	}
 
+	return false
 
+}

+ 2 - 0
frontend.go
View File 

@@ -28,6 +28,8 @@ func handlerFrontEnd(wrapper *wrapper.Wrapper) bool {
 
 		return true
 
 		return true
 
 	}
 
 	}
 
 
 
+	// Connect to database
 
+
 
 	// Else logic here
 
 	// Else logic here
 
 	if wrapper.R.URL.Path == "/" {
 
 	if wrapper.R.URL.Path == "/" {
 
 		return wrapper.TmplFrontEnd("index", TmplData{
 
 		return wrapper.TmplFrontEnd("index", TmplData{