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captcha/example/load-font/main.go

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package main
import (
"fmt"
"github.com/steambap/captcha"
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"golang.org/x/image/font/gofont/goregular"
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"html/template"
"net/http"
)
func main() {
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err := captcha.LoadFont(goregular.TTF)
if err != nil {
panic(err)
}
http.HandleFunc("/", indexHandle)
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http.HandleFunc("/captcha", captchaHandle)
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fmt.Println("Server start at port 8080")
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err = http.ListenAndServe(":8080", nil)
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if err != nil {
panic(err)
}
}
func indexHandle(w http.ResponseWriter, _ *http.Request) {
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doc, err := template.ParseFiles("index.html")
if err != nil {
fmt.Fprint(w, err.Error())
return
}
doc.Execute(w, nil)
}
func captchaHandle(w http.ResponseWriter, _ *http.Request) {
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img, err := captcha.New(150, 50, func(options *captcha.Options) {
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options.FontScale = 0.8
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})
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if err != nil {
fmt.Fprint(w, nil)
fmt.Println(err.Error())
return
}
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img.WriteImage(w)
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}