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mjarkkmjarkk
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Add support for Content-Transfer-Encoding=quoted-printable
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+85
-7
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‎dist/assets/Code-DbhFbLet.js renamed to ‎dist/assets/Code-1S_lVFgV.js

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‎dist/assets/Code-DV6HP0dz.css renamed to ‎dist/assets/Code-1ehz9Hc3.css

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‎dist/assets/Show-DNYecVsq.js

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‎dist/assets/Show-pm1-B8_e.js

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‎dist/assets/index-DM5YycMT.js

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‎dist/assets/index-CygxqtQR.css renamed to ‎dist/assets/index-WeMh_2BT.css

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‎dist/assets/index-brl1C-fK.js

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‎dist/index.html

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@@ -14,8 +14,8 @@
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color: white;
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}
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</style>
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<script type="module" crossorigin src="/assets/index-DM5YycMT.js"></script>
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<link rel="stylesheet" crossorigin href="/assets/index-CygxqtQR.css">
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<script type="module" crossorigin src="/assets/index-brl1C-fK.js"></script>
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<link rel="stylesheet" crossorigin href="/assets/index-WeMh_2BT.css">
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</head>
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<body>
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<div id="root"></div>

‎go/email.go

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@@ -144,6 +144,10 @@ func ConvertEmail(ulid ulid.ULID, emlRawData []byte, em parsemail.Email, realDat
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bodyHint = bodyHint[:100] + "..."
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}
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if em.Header.Get("Content-Transfer-Encoding") == "quoted-printable" {
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em.HTMLBody = sanitize.ConvertQoutedPrintable(em.HTMLBody)
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}
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htmlBody, err := sanitize.Parse(em.HTMLBody)
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if err != nil {
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return Email{}, err

‎go/sanitize/quoted_printable.go

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@@ -0,0 +1,63 @@
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package sanitize
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import (
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"encoding/hex"
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"fmt"
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)
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func isHexUpper(c byte) bool {
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return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')
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}
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func ConvertQoutedPrintable(s string) string {
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idx := 0
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resp := []byte{}
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var err error
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hexInput := []byte{0, 0}
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for {
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if idx >= len(s) {
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break
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}
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c := s[idx]
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if c != '=' {
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resp = append(resp, c)
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idx++
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continue
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}
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if idx+2 >= len(s) {
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resp = append(resp, c)
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idx++
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continue
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}
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hexInput[0] = s[idx+1]
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hexInput[1] = s[idx+2]
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if hexInput[0] == '\r' && hexInput[1] == '\n' {
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idx += 3
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continue
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}
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if !isHexUpper(hexInput[0]) || !isHexUpper(hexInput[1]) {
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resp = append(resp, c)
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idx++
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continue
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}
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resp, err = hex.AppendDecode(resp, hexInput)
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if err != nil {
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fmt.Printf("DECODEING ERROR, Failed to decode %s to a byte: %s", string(hexInput), err)
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resp = append(resp, c)
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idx++
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continue
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}
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idx += 3
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continue
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}
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return string(resp)
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}

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