89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
package handlers
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"path"
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"strings"
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"github.com/play-with-docker/play-with-docker/config"
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"github.com/play-with-docker/play-with-docker/services"
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)
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type NewSessionResponse struct {
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SessionId string `json:"session_id"`
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Hostname string `json:"hostname"`
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}
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func NewSession(rw http.ResponseWriter, req *http.Request) {
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req.ParseForm()
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if !services.IsHuman(req, rw) {
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// User it not a human
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rw.WriteHeader(http.StatusForbidden)
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return
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}
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reqDur := req.Form.Get("session-duration")
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stack := req.Form.Get("stack")
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stackName := req.Form.Get("stack_name")
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if stack != "" {
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stack = formatStack(stack)
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if ok, err := stackExists(stack); err != nil {
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log.Printf("Error retrieving stack: %s", err)
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rw.WriteHeader(http.StatusInternalServerError)
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return
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} else if !ok {
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log.Printf("Stack [%s] could not be found", stack)
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rw.WriteHeader(http.StatusBadRequest)
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return
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}
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}
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duration := services.GetDuration(reqDur)
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s, err := services.NewSession(duration, stack, stackName)
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if err != nil {
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log.Println(err)
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//TODO: Return some error code
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} else {
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hostname := fmt.Sprintf("%s.%s", config.PWDCName, req.Host)
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// If request is not a form, return sessionId in the body
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if req.Header.Get("X-Requested-With") == "XMLHttpRequest" {
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resp := NewSessionResponse{SessionId: s.Id, Hostname: hostname}
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rw.Header().Set("Content-Type", "application/json")
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json.NewEncoder(rw).Encode(resp)
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return
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}
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if stack != "" {
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http.Redirect(rw, req, fmt.Sprintf("http://%s/p/%s", hostname, s.Id), http.StatusFound)
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return
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}
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http.Redirect(rw, req, fmt.Sprintf("http://%s/p/%s", hostname, s.Id), http.StatusFound)
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}
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}
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func formatStack(stack string) string {
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if !strings.HasSuffix(stack, ".yml") {
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// If it doesn't end with ".yml", assume it hasn't been specified, then default to "stack.yml"
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stack = path.Join(stack, "stack.yml")
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}
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if strings.HasPrefix(stack, "/") {
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// The host is anonymous, then use our own stack repo.
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stack = fmt.Sprintf("%s%s", "https://raw.githubusercontent.com/play-with-docker/stacks/master", stack)
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}
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return stack
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}
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func stackExists(stack string) (bool, error) {
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resp, err := http.Head(stack)
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if err != nil {
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return false, err
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}
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defer resp.Body.Close()
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return resp.StatusCode == 200, nil
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}
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