0.9.0 NEW Random Data API

Author: jolav

README.md

@@ -1,11 +1,11 @@
 
-![Version](https://img.shields.io/badge/version-0.8.5-orange.svg)  
+![Version](https://img.shields.io/badge/version-0.9.0-orange.svg)  
 ![Maintained YES](https://img.shields.io/badge/Maintained%3F-yes-green.svg)  
 ![Ask Me Anything !](https://img.shields.io/badge/Ask%20me-anything-1abc9c.svg)  
 
 # ![logo](https://github.com/jolav/codetabs/blob/master/www/_public/icons/ct/ct64r.png?raw=true) **ONLINE TOOLS ([codetabs.com](https://codetabs.com))** 
 
-**version 0.8.5**
+**version 0.9.0**
 
 1. [Count LOC (lines of code) online from github/gitlab repos or zipped uploaded folder](#count-loc-online)  
 2. [CORS proxy](#cors-proxy)  
@@ -15,6 +15,7 @@
 6. [HTTP Headers](#headers)  
 7. [API weather temp](#weather)  
 8. [Video To Gif](#video2gif)
+9. [Random Data API](#random-data-api)
 
 
 [To Do List](#to-do)
@@ -233,6 +234,43 @@ Scale : Set width:height , if one parameter is -1 it will automatically determin
 
 <hr>
 
+![logo](https://github.com/jolav/codetabs/blob/master/www/_public/icons/random48.png?raw=true) 
+
+## **RANDOM DATA API**
+
+### **[Demo and Docs online](https://codetabs.com/random-data/random-data.html)**
+
+- Api to generate random data
+- Only suppports GET request.
+- Limit : 10 request per seconds. Once reached subsequent requests will result in error 429 (too many requests) until your quota is cleared.  
+
+
+### **Endpoints**  
+
+- Get Random Integers
+```
+http Request :
+GET https://api.codetabs.com/v1/random/integer?range=X-Y
+```  
+
+Examples
+Get random number between 1-10 both inclusive  
+https://api.codetabs.com/v1/random/integer?min=1&max=10  
+You can also specify how many times you want the result with the parameter times.
+Default is 1 and there is no need to specify it. Max times = 10.000  
+https://api.codetabs.com/v1/random/integer?min=1&max=10&times=50
+
+- List with randomized order  
+```
+http Request :
+GET https://api.codetabs.com/v1/random/list?len=X
+``` 
+Max list elements : 10.000  
+Example: Get random order numbers for a list of 1000 elements  
+https://api.codetabs.com/v1/random/list?len=1000 
+
+<hr>
+
 ## TO DO
 
 - [ ] **WWW** clean unused parts, css, etc

_utils/utils.go

@@ -26,6 +26,16 @@ func SliceContainsString(str string, slice []string) bool {
 	return false
 }
 
+// SliceContainsInteger ... returns true/false
+func SliceContainsInteger(num int, slice []int) bool {
+	for _, v := range slice {
+		if v == num {
+			return true
+		}
+	}
+	return false
+}
+
 // GenericCommandSH ...
 func GenericCommandSH(comm string) (chunk []byte, err error) {
 	chunk, err = exec.Command("sh", "-c", comm).CombinedOutput()
@@ -35,6 +45,16 @@ func GenericCommandSH(comm string) (chunk []byte, err error) {
 	return chunk, err
 }
 
+// RemoveElementFromSliceString
+func RemoveElementFromSliceString(index int, slice []string) []string {
+	return append(slice[:index], slice[index+1:]...)
+}
+
+// RemoveElementFromSliceInt
+func RemoveElementFromSliceInt(index int, slice []int) []int {
+	return append(slice[:index], slice[index+1:]...)
+}
+
 // GenericCommand ...
 func GenericCommand(args []string) (err error) {
 	_, err = exec.Command(args[0], args[1:len(args)]...).CombinedOutput()

main.go

@@ -8,6 +8,7 @@ import (
 	"flag"
 	"fmt"
 	"log"
+	"math/rand"
 	"net/http"
 	"os"
 	"os/user"
@@ -20,13 +21,14 @@ import (
 	"github.com/jolav/codetabs/headers"
 	"github.com/jolav/codetabs/loc"
 	"github.com/jolav/codetabs/proxy"
+	"github.com/jolav/codetabs/random"
 	"github.com/jolav/codetabs/stars"
 	"github.com/jolav/codetabs/store"
 	"github.com/jolav/codetabs/video2gif"
 	"github.com/jolav/codetabs/weather"
 )
 
-var version = "0.8.5"
+var version = "0.9.0"
 var when = "undefined"
 
 type Conf struct {
@@ -42,6 +44,8 @@ type Conf struct {
 }
 
 func main() {
+
+	rand.Seed(time.Now().UnixNano())
 	checkFlags()
 
 	var c Conf
@@ -91,6 +95,7 @@ func main() {
 	mux.HandleFunc("/v1/headers/", mw(headers.Router, "headers", c))
 	mux.HandleFunc("/v1/weather/", mw(weather.Router, "weather", c))
 	mux.HandleFunc("/v1/video2gif/", mw(video2gif.Router, "video2gif", c))
+	mux.HandleFunc("/v1/random/", mw(random.Router, "random", c))
 	mux.HandleFunc("/v1/stars/", mw(stars.Router, "stars", c))
 	mux.HandleFunc("/v1/proxy/", mw(proxy.Router, "proxy", c))
 	mux.HandleFunc("/v1/tmp/", mw(proxy.Router, "proxy", c))

random/random.go

@@ -0,0 +1,113 @@
+/* */
+
+package random
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+
+	u "github.com/jolav/codetabs/_utils"
+)
+
+type random struct {
+	Quest  string `json:"quest"`
+	Result []int  `json:"data"`
+}
+
+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
+	}
+
+	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
+	}
+}
+
+func (rd random) randomInteger(w http.ResponseWriter, r *http.Request) {
+	times := 1
+
+	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)
+	}
+
+	for time := 1; time <= times; time++ {
+		rd.Result = append(rd.Result, u.GetRandomInt(min, max))
+	}
+
+	u.SendJSONToClient(w, rd, 200)
+}
+
+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
+	}
+
+	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)
+}
+
+func newRandom() random {
+	rd := random{
+		Quest:  "",
+		Result: []int{},
+	}
+	return rd
+}

www/_public/icons/random48.png

@@ -2,7 +2,7 @@
 <h2 class="centerText">
   API doc
   <small>
-    <small>(version 0.8.5)</small>
+    <small>(version 0.9.0)</small>
   </small>
 </h2>
 <!-- End  -->

www/_public/images/sprite.png

@@ -229,95 +229,24 @@ hr {
 }
 
 /* Generated by http://css.spritegen.com CSS Sprite Generator */
-
-.ct64r, .ct48r, .alexa32, .ct32r, .gif32, .headers32, .ip32, .jolav32, .loc32, .notes32, .proxy32, .stars32, .weather32, .check {
-  display: inline-block;
-  background: url('/_public/images/sprite.png') no-repeat;
-  overflow: hidden;
-  text-indent: -9999px;
-  text-align: left;
-}
-
-.ct64r {
-  background-position: -0px -0px;
-  width: 64px;
-  height: 64px;
-}
-
-.ct48r {
-  background-position: -0px -64px;
-  width: 48px;
-  height: 48px;
-}
-
-.alexa32 {
-  background-position: -0px -112px;
-  width: 32px;
-  height: 32px;
-}
-
-.ct32r {
-  background-position: -32px -112px;
-  width: 32px;
-  height: 32px;
-}
-
-.gif32 {
-  background-position: -0px -144px;
-  width: 32px;
-  height: 32px;
-}
-
-.headers32 {
-  background-position: -32px -144px;
-  width: 32px;
-  height: 32px;
-}
-
-.ip32 {
-  background-position: -0px -176px;
-  width: 32px;
-  height: 32px;
-}
-
-.jolav32 {
-  background-position: -32px -176px;
-  width: 32px;
-  height: 32px;
-}
-
-.loc32 {
-  background-position: -0px -208px;
-  width: 32px;
-  height: 32px;
-}
-
-.notes32 {
-  background-position: -32px -208px;
-  width: 32px;
-  height: 32px;
-}
-
-.proxy32 {
-  background-position: -0px -240px;
-  width: 32px;
-  height: 32px;
-}
-
-.stars32 {
-  background-position: -32px -240px;
-  width: 32px;
-  height: 32px;
-}
-
-.weather32 {
-  background-position: -0px -272px;
-  width: 32px;
-  height: 32px;
-}
-
-.check {
-  background-position: -48px -64px;
-  width: 16px;
-  height: 16px;
-}
+ 
+.ct64r, .ct48r, .alexa32, .ct32r, .gif32, 
+.headers32, .ip32, .jolav32, .loc32, .notes32, 
+.proxy32, .random32, .stars32, .weather32, .check
+{ display: inline-block; background: url('_public/images/sprite.png') no-repeat; overflow: hidden; text-indent: -9999px; text-align: left; }
+ 
+.ct64r { background-position: -0px -0px; width: 64px; height: 64px; }
+.ct48r { background-position: -0px -64px; width: 48px; height: 48px; }
+.alexa32 { background-position: -0px -112px; width: 32px; height: 32px; }
+.ct32r { background-position: -32px -112px; width: 32px; height: 32px; }
+.gif32 { background-position: -0px -144px; width: 32px; height: 32px; }
+.headers32 { background-position: -32px -144px; width: 32px; height: 32px; }
+.ip32 { background-position: -0px -176px; width: 32px; height: 32px; }
+.jolav32 { background-position: -32px -176px; width: 32px; height: 32px; }
+.loc32 { background-position: -0px -208px; width: 32px; height: 32px; }
+.notes32 { background-position: -32px -208px; width: 32px; height: 32px; }
+.proxy32 { background-position: -0px -240px; width: 32px; height: 32px; }
+.random32 { background-position: -32px -240px; width: 32px; height: 32px; }
+.stars32 { background-position: -0px -272px; width: 32px; height: 32px; }
+.weather32 { background-position: -32px -272px; width: 32px; height: 32px; }
+.check { background-position: -48px -64px; width: 16px; height: 16px; }