30 lines
		
	
	
		
			852 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			852 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| package frontend
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| 
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| import (
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| 	"errors"
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| 	"html/template"
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| 	"net/http"
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| 
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| 	"github.com/gorilla/sessions"
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| 	b "streifling.com/jason/cpolis/cmd/backend"
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| )
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| 
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| // getSession is used for verifying that the user is logged in and returns their session and an error.
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| func getSession(w http.ResponseWriter, r *http.Request, c *b.Config, s *b.CookieStore) (*sessions.Session, error) {
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| 	msg := "Keine gültige Session. Bitte erneut anmelden."
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| 	tmpl, tmplErr := template.ParseFiles(c.WebDir+"/templates/index.html", c.WebDir+"/templates/login.html")
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| 
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| 	session, err := s.Get(r, "cookie")
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| 	if err != nil {
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| 		template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg)
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| 		return nil, err
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| 	}
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| 
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| 	if session.IsNew {
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| 		template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg)
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| 		return session, errors.New("error: no existing session")
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| 	}
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| 
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| 	return session, nil
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| }
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