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公明
27 lines
647 B
Go
27 lines
647 B
Go
package ilink
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import (
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"encoding/base64"
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"fmt"
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"strings"
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"github.com/skip2/go-qrcode"
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)
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// QRCodeDataURL 将扫码内容（一般为 liteapp 链接）编码为 PNG data URL，供 Web 端展示。
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// qrcode_img_content 不是图片直链，不能用作 <img src>。
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func QRCodeDataURL(content string, size int) (string, error) {
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content = strings.TrimSpace(content)
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if content == "" {
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return "", fmt.Errorf("empty qr content")
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}
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if size <= 0 {
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size = 256
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}
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png, err := qrcode.Encode(content, qrcode.Medium, size)
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if err != nil {
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return "", err
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}
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return "data:image/png;base64," + base64.StdEncoding.EncodeToString(png), nil
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}
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