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113 lines
3 KiB
Go
113 lines
3 KiB
Go
package handler
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import (
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"encoding/json"
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"net/http"
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"strings"
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"time"
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"github.com/dchest/authcookie"
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"github.com/drone/drone/pkg/template"
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)
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// -----------------------------------------------------------------------------
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// Rendering Functions
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// Renders the named template for the specified data type
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// and write the output to the http.ResponseWriter.
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func RenderTemplate(w http.ResponseWriter, name string, data interface{}) error {
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w.Header().Add("Content-Type", "text/html; charset=utf-8")
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return template.ExecuteTemplate(w, name, data)
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}
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// Renders the 404 template for the specified data type
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// and write the output to the http.ResponseWriter.
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func RenderNotFound(w http.ResponseWriter) error {
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w.Header().Add("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusNotFound)
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return template.ExecuteTemplate(w, "404.amber", nil)
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}
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// Renders the 403 template for the specified data type
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// and write the output to the http.ResponseWriter.
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func RenderForbidden(w http.ResponseWriter) error {
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w.Header().Add("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusNotFound)
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return template.ExecuteTemplate(w, "403.amber", nil)
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}
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// RenderJson renders a JSON representation of resource v and
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// writes to the http.ResposneWriter.
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func RenderJson(w http.ResponseWriter, data interface{}) error {
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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return json.NewEncoder(w).Encode(data)
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}
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// RenderText write the plain text string to the http.ResposneWriter.
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func RenderText(w http.ResponseWriter, text string, code int) error {
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w.Header().Add("Content-Type", "text/plain")
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w.WriteHeader(code)
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w.Write([]byte(text))
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return nil
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}
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// RenderError renders a text representation of the Error message.
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func RenderError(w http.ResponseWriter, err error, code int) error {
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return RenderText(w, err.Error(), code)
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}
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// -----------------------------------------------------------------------------
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// Cookie Helper functions
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// SetCookie signs and writes the cookie value.
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func SetCookie(w http.ResponseWriter, r *http.Request, name, value string) {
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sec := IsHttps(r)
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str := authcookie.New(value, time.Now().Add(time.Hour*24), secret)
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cookie := http.Cookie{
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Name: name,
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Value: str,
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Path: "/",
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Domain: r.URL.Host,
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HttpOnly: true,
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Secure: sec,
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}
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http.SetCookie(w, &cookie)
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}
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func IsHttps(r *http.Request) bool {
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if r.URL.Scheme == "https" {
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return true
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}
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if strings.HasPrefix(r.Proto, "HTTPS") {
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return true
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}
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if r.Header.Get("X-Forwarded-Proto") == "https" {
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return true
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}
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return false
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}
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// GetCookie retrieves and verifies the signed cookie value.
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func GetCookie(r *http.Request, name string) string {
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cookie, err := r.Cookie(name)
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if err != nil {
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return ""
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}
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return authcookie.Login(cookie.Value, secret)
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}
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// DelCookie deletes a secure cookie.
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func DelCookie(w http.ResponseWriter, r *http.Request, name string) {
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cookie := http.Cookie{
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Name: name,
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Value: "deleted",
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Path: "/",
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Domain: r.URL.Host,
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MaxAge: -1,
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}
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http.SetCookie(w, &cookie)
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}
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