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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| /* */ | ||
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| package random | ||
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| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "strconv" | ||
| "strings" | ||
|
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| u "github.com/jolav/codetabs/_utils" | ||
| ) | ||
|
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| type random struct { | ||
| Quest string `json:"quest"` | ||
| Result []int `json:"data"` | ||
| } | ||
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| func Router(w http.ResponseWriter, r *http.Request) { | ||
| params := strings.Split(strings.ToLower(r.URL.Path), "/") | ||
| path := params[1:len(params)] | ||
| if path[len(path)-1] == "" { // remove last empty slot after / | ||
| path = path[:len(path)-1] | ||
| } | ||
| //log.Printf("Going ....%s %s %d", path, r.Method, len(path)) | ||
| if len(path) < 2 || path[0] != "v1" { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
| if len(path) != 3 { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
|
|
||
| if r.Method == "POST" { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
|
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| rd := newRandom() | ||
| randomType := path[2] | ||
| switch randomType { | ||
| case "integer": | ||
| rd.randomInteger(w, r) | ||
| case "list": | ||
| rd.randomList(w, r) | ||
| default: | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
| } | ||
|
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| func (rd random) randomInteger(w http.ResponseWriter, r *http.Request) { | ||
| times := 1 | ||
|
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| r.ParseForm() | ||
| min, err := strconv.Atoi(r.Form.Get("min")) | ||
| if err != nil { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
| max, err := strconv.Atoi(r.Form.Get("max")) | ||
| if err != nil || min > max || min < 0 || max > 10000000000 { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
| if r.Form.Get("times") != "" { | ||
| times, err = strconv.Atoi(r.Form.Get("times")) | ||
| if err != nil || times > 10000 { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
| } | ||
| if times == 1 { | ||
| rd.Quest = fmt.Sprintf("Random Integer between %d-%d", min, max) | ||
| } else { | ||
| rd.Quest = fmt.Sprintf("%d Random Integers between %d-%d", times, min, max) | ||
| } | ||
|
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| for time := 1; time <= times; time++ { | ||
| rd.Result = append(rd.Result, u.GetRandomInt(min, max)) | ||
| } | ||
|
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| u.SendJSONToClient(w, rd, 200) | ||
| } | ||
|
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| func (rd random) randomList(w http.ResponseWriter, r *http.Request) { | ||
| r.ParseForm() | ||
| elements, err := strconv.Atoi(r.Form.Get("len")) | ||
| if err != nil || elements < 2 || elements > 10000 { | ||
| u.BadRequest(w, r) | ||
| return | ||
| } | ||
|
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| rd.Quest = fmt.Sprintf("Randomized order list with %d elements", elements) | ||
| element := 0 | ||
| for element < elements { | ||
| number := u.GetRandomInt(1, elements) | ||
| if !u.SliceContainsInteger(number, rd.Result) { | ||
| rd.Result = append(rd.Result, number) | ||
| element++ | ||
| } | ||
| } | ||
| u.SendJSONToClient(w, rd, 200) | ||
| } | ||
|
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| func newRandom() random { | ||
| rd := random{ | ||
| Quest: "", | ||
| Result: []int{}, | ||
| } | ||
| return rd | ||
| } |
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