Jan Novak
fe935235e8
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- GET /qr: Czech QR Platba PNG; ports Python qr_code() exactly
(account validation, amount clamping, * stripping, SPD format)
- GET /sync-bank: Fio sync → infer → cache flush with captured log
- GET+POST /flush-cache: form + action, shows deleted count
- GET /version: JSON alias of /api/version (Python parity)
- FlushCache() added to membership.Sources; wired through api.Handler
- web.ActionHandlers{BankSync} closure-based dep injection for sync
- New dep: github.com/skip2/go-qrcode
- TestQRBuildSPD (9 cases), TestServeQR, TestServeFlushCache{GET,POST},
TestServeSync, TestServeVersion added
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package web
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import (
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"fmt"
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"regexp"
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"strings"
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"unicode/utf8"
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qrcode "github.com/skip2/go-qrcode"
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)
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var validAccount = regexp.MustCompile(`^[A-Z]{2}\d{2,34}$|^\d{1,16}/\d{4}$`)
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// BuildSPD builds a Czech QR Platba SPD string, matching Python's qr_code handler.
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// Invalid account falls back to defaultAccount.
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// Amount is clamped to [0, 10_000_000]; non-numeric input becomes "0.00".
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// Message is truncated to 60 runes and stripped of '*' characters.
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func BuildSPD(account, amount, message, defaultAccount string) string {
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if !validAccount.MatchString(account) {
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account = defaultAccount
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}
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var amtStr string
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var f float64
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if _, err := fmt.Sscanf(amount, "%f", &f); err != nil || f < 0 || f > 10_000_000 {
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amtStr = "0.00"
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} else {
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amtStr = fmt.Sprintf("%.2f", f)
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}
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if utf8.RuneCountInString(message) > 60 {
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runes := []rune(message)
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message = string(runes[:60])
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}
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message = strings.ReplaceAll(message, "*", "")
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var accStr string
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if parts := strings.SplitN(account, "/", 2); len(parts) == 2 {
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accStr = parts[0] + "*BC:" + parts[1]
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} else {
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accStr = account
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}
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return fmt.Sprintf("SPD*1.0*ACC:%s*AM:%s*CC:CZK*MSG:%s", accStr, amtStr, message)
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}
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// RenderQRCode encodes payload as a PNG QR code (256×256, error correction Medium).
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func RenderQRCode(payload string) ([]byte, error) {
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return qrcode.Encode(payload, qrcode.Medium, 256)
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}
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