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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "mime" | ||
| "net/http" | ||
| "time" | ||
| ) | ||
|
|
||
| type requestData struct { | ||
| body []byte | ||
| expiration time.Duration | ||
| } | ||
|
|
||
| func calculateExpiration(expire string, defaultExpire time.Duration) (time.Duration, error) { | ||
| if expire == "" { | ||
| return defaultExpire, nil | ||
| } | ||
|
|
||
| userExpire, err := time.ParseDuration(expire) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
|
|
||
| maxExpire := time.Duration(maxExpireSeconds) * time.Second | ||
|
|
||
| if userExpire > maxExpire { | ||
| return 0, fmt.Errorf("Invalid expiration date") | ||
| } | ||
|
|
||
| return userExpire, nil | ||
| } | ||
|
|
||
| func parseMultiForm(r *http.Request) ([]byte, error) { | ||
| err := r.ParseMultipartForm(1024 * 1024) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| secret := r.PostForm.Get("secret") | ||
| if secret != "" { | ||
| body := []byte(secret) | ||
| return body, nil | ||
| } | ||
|
|
||
| file, _, err := r.FormFile("secret") | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return ioutil.ReadAll(file) | ||
| } | ||
|
|
||
| func getBody(r *http.Request) ([]byte, error) { | ||
| ct := r.Header.Get("content-type") | ||
| if ct == "" { | ||
| ct = "application/octet-stream" | ||
| } | ||
| ct, _, err := mime.ParseMediaType(ct) | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| switch { | ||
| case ct == "multipart/form-data": | ||
| return parseMultiForm(r) | ||
| default: | ||
| return ioutil.ReadAll(r.Body) | ||
| } | ||
| } | ||
|
|
||
| func (b requestData) ContentType() string { | ||
| return "plain/text" | ||
| } | ||
|
|
||
| func getSecretExpiration(r *http.Request) (time.Duration, error) { | ||
| var expiration string | ||
| r.ParseForm() | ||
| expiration = r.Form.Get("expire") | ||
|
|
||
| return calculateExpiration(expiration, time.Second*time.Duration(expireSeconds)) | ||
| } | ||
|
|
||
| func parseCreateRequest(r *http.Request) (*requestData, error) { | ||
| body, err := getBody(r) | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| expiration, err := getSecretExpiration(r) | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &requestData{ | ||
| body: body, | ||
| expiration: expiration, | ||
| }, nil | ||
|
|
||
| } |