mirror of
https://github.com/wneessen/go-mail.git
synced 2024-11-09 15:32:54 +01:00
Winni Neessen
db9893f15a
Refactored the way EML files are tested, the errors are now handled more efficiently. Temporary directory and file creation, as well as file writing, have been moved to a helper function named 'stringToTempFile'. Moreover, additional test cases were added to ensure proper parsing failure for various types of email-related errors.
609 lines
21 KiB
Go
609 lines
21 KiB
Go
// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
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//
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// SPDX-License-Identifier: MIT
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package mail
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import (
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"bytes"
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"fmt"
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"os"
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"strings"
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"testing"
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"time"
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)
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const (
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exampleMailPlainNoEnc = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenBody = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: base64
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainNoContentType = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainUnknownContentType = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: application/unknown; charset=UTF-8
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Content-Transfer-Encoding: base64
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This plain text body should not be parsed as Base64.
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`
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exampleMailPlainBrokenHeader = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version = 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent = go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From = "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding = 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenFrom = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: Toni Tester" go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainBrokenTo = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: go-mail+test.go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainNoEncInvalidDate = `Date: Inv, 99 Nov 9999 99:99:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainNoEncNoDate = `MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text without encoding
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainQP = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text quoted-printable
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: quoted-printable
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very lo=
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ng so it
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should be wrapped.
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainUnsupportedTransferEnc = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text quoted-printable
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=ISO-8859-1
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Content-Transfer-Encoding: unknown
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Dear Customer,
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This is a test mail. Please do not reply to this. Also this line is very long so it should be wrapped.
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㋛
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This is not ==D3
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Thank your for your business!
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The go-mail team
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--
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This is a signature`
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exampleMailPlainB64 = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64
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User-Agent: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.0 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: base64
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RGVhciBDdXN0b21lciwKClRoaXMgaXMgYSB0ZXN0IG1haWwuIFBsZWFzZSBkbyBub3QgcmVwbHkg
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dG8gdGhpcy4gQWxzbyB0aGlzIGxpbmUgaXMgdmVyeSBsb25nIHNvIGl0CnNob3VsZCBiZSB3cmFw
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cGVkLgoKClRoYW5rIHlvdXIgZm9yIHlvdXIgYnVzaW5lc3MhClRoZSBnby1tYWlsIHRlYW0KCi0t
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ClRoaXMgaXMgYSBzaWduYXR1cmU=`
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exampleMailPlainB64WithAttachment = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64 with attachment
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User-Agent: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: multipart/mixed;
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boundary=45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Transfer-Encoding: base64
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Content-Type: text/plain; charset=UTF-8
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RGVhciBDdXN0b21lciwKClRoaXMgaXMgYSB0ZXN0IG1haWwuIFBsZWFzZSBkbyBub3QgcmVwbHkg
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dG8gdGhpcy4gQWxzbyB0aGlzIGxpbmUgaXMgdmVyeSBsb25nIHNvIGl0CnNob3VsZCBiZSB3cmFw
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cGVkLgoKClRoYW5rIHlvdXIgZm9yIHlvdXIgYnVzaW5lc3MhClRoZSBnby1tYWlsIHRlYW0KCi0t
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ClRoaXMgaXMgYSBzaWduYXR1cmU=
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Disposition: attachment; filename="test.attachment"
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Content-Transfer-Encoding: base64
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Content-Type: application/octet-stream; name="test.attachment"
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VGhpcyBpcyBhIHNpbXBsZSB0ZXN0IHRleHQgZmlsZSBhdHRhY2htZW50LgoKSXQgCiAgaGFzCiAg
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ICAgc2V2ZXJhbAogICAgICAgICAgICBuZXdsaW5lcwoJICAgICAgICAgICAgYW5kCgkgICAgc3Bh
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Y2VzCiAgICAgaW4KICBpdAouCgpBcyB3ZWxsIGFzIGFuIGVtb2ppOiDwn5mCCg==
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7--`
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exampleMailPlainB64BrokenBody = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64 with attachment
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User-Agent: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: multipart/mixed;
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boundary=45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Transfer-Encoding = base64
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Content-Type = text/plain; charset=UTF-8
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RGVhciBDdXN0b21lciwKClRoaXMgaXMgYSB0ZXN0IG1haWwuIFBsZWFzZSBkbyBub3QgcmVwbHkg
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dG8gdGhpcy4gQWxzbyB0aGlzIGxpbmUgaXMgdmVyeSBsb25nIHNvIGl0CnNob3VsZCBiZSB3cmFw
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cGVkLgoKClRoYW5rIHlvdXIgZm9yIHlvdXIgYnVzaW5lc3MhClRoZSBnby1tYWlsIHRlYW0KCi0t
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ClRoaXMgaXMgYSBzaWduYXR1cmU=
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7
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Content-Disposition: attachment; filename="test.attachment"
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Content-Transfer-Encoding: base64
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Content-Type: application/octet-stream; name="test.attachment"
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VGhpcyBpcyBhIHNpbXBsZSB0ZXN0IHRleHQgZmlsZSBhdHRhY2htZW50LgoKSXQgCiAgaGFzCiAg
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ICAgc2V2ZXJhbAogICAgICAgICAgICBuZXdsaW5lcwoJICAgICAgICAgICAgYW5kCgkgICAgc3Bh
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Y2VzCiAgICAgaW4KICBpdAouCgpBcyB3ZWxsIGFzIGFuIGVtb2ppOiDwn5mCCg==
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7--`
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exampleMailPlainB64WithEmbed = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64 with embed
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User-Agent: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: multipart/related;
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boundary=ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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Content-Transfer-Encoding: quoted-printable
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Content-Type: text/plain; charset=UTF-8
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This is a test body string
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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Content-Disposition: inline; filename="pixel.png"
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Content-Id: <pixel.png>
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Content-Transfer-Encoding: base64
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Content-Type: image/png; name="pixel.png"
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iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgYGD4DwABBAEAwS2O
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UAAAAABJRU5ErkJggg==
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b--`
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)
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func TestEMLToMsgFromString(t *testing.T) {
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tests := []struct {
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name string
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eml string
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enc string
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sub string
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}{
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{
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"Plain text no encoding", exampleMailPlainNoEnc, "8bit",
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"Example mail // plain text without encoding",
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},
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{
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"Plain text quoted-printable", exampleMailPlainQP, "quoted-printable",
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"Example mail // plain text quoted-printable",
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},
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{
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"Plain text base64", exampleMailPlainB64, "base64",
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"Example mail // plain text base64",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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msg, err := EMLToMsgFromString(tt.eml)
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if err != nil {
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t.Errorf("failed to parse EML: %s", err)
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}
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if msg.Encoding() != tt.enc {
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t.Errorf("EMLToMsgFromString failed: expected encoding: %s, but got: %s", tt.enc, msg.Encoding())
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}
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if subject := msg.GetGenHeader(HeaderSubject); len(subject) > 0 && !strings.EqualFold(subject[0], tt.sub) {
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t.Errorf("EMLToMsgFromString failed: expected subject: %s, but got: %s",
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tt.sub, subject[0])
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}
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})
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}
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}
|
|
|
|
func TestEMLToMsgFromFile(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
eml string
|
|
enc string
|
|
sub string
|
|
}{
|
|
{
|
|
"Plain text no encoding", exampleMailPlainNoEnc, "8bit",
|
|
"Example mail // plain text without encoding",
|
|
},
|
|
{
|
|
"Plain text quoted-printable", exampleMailPlainQP, "quoted-printable",
|
|
"Example mail // plain text quoted-printable",
|
|
},
|
|
{
|
|
"Plain text base64", exampleMailPlainB64, "base64",
|
|
"Example mail // plain text base64",
|
|
},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
tempDir, tempFile, err := stringToTempFile(tt.eml, tt.name)
|
|
defer func() {
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
}()
|
|
msg, err := EMLToMsgFromFile(tempFile)
|
|
if err != nil {
|
|
t.Errorf("failed to parse EML: %s", err)
|
|
}
|
|
if msg.Encoding() != tt.enc {
|
|
t.Errorf("EMLToMsgFromString failed: expected encoding: %s, but got: %s", tt.enc, msg.Encoding())
|
|
}
|
|
if subject := msg.GetGenHeader(HeaderSubject); len(subject) > 0 && !strings.EqualFold(subject[0], tt.sub) {
|
|
t.Errorf("EMLToMsgFromString failed: expected subject: %s, but got: %s",
|
|
tt.sub, subject[0])
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromReaderFailing(t *testing.T) {
|
|
mailbuf := bytes.NewBufferString(exampleMailPlainBrokenFrom)
|
|
_, err := EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken FROM was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainBrokenHeader)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken header was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainB64BrokenBody)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainBrokenBody)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainUnknownContentType)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with unknown content type was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainNoContentType)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with no content type was supposed to fail, but didn't")
|
|
}
|
|
mailbuf.Reset()
|
|
mailbuf.WriteString(exampleMailPlainUnsupportedTransferEnc)
|
|
_, err = EMLToMsgFromReader(mailbuf)
|
|
if err == nil {
|
|
t.Error("EML from Reader with unsupported Transer-Encoding was supposed to fail, but didn't")
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromFileFailing(t *testing.T) {
|
|
tempDir, tempFile, err := stringToTempFile(exampleMailPlainBrokenFrom, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken FROM was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainBrokenHeader, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken header was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainB64BrokenBody, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainBrokenBody, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainUnknownContentType, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with unknown content type was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainNoContentType, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with no content type was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
tempDir, tempFile, err = stringToTempFile(exampleMailPlainUnsupportedTransferEnc, "testmail")
|
|
_, err = EMLToMsgFromFile(tempFile)
|
|
if err == nil {
|
|
t.Error("EML from Reader with unsupported Transer-Encoding was supposed to fail, but didn't")
|
|
}
|
|
if err = os.RemoveAll(tempDir); err != nil {
|
|
t.Error("failed to remove temp dir:", err)
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromStringBrokenDate(t *testing.T) {
|
|
_, err := EMLToMsgFromString(exampleMailPlainNoEncInvalidDate)
|
|
if err == nil {
|
|
t.Error("EML with invalid date was supposed to fail, but didn't")
|
|
}
|
|
now := time.Now()
|
|
m, err := EMLToMsgFromString(exampleMailPlainNoEncNoDate)
|
|
if err != nil {
|
|
t.Errorf("EML with no date parsing failed: %s", err)
|
|
}
|
|
da := m.GetGenHeader(HeaderDate)
|
|
if len(da) < 1 {
|
|
t.Error("EML with no date expected current date, but got nothing")
|
|
return
|
|
}
|
|
d := da[0]
|
|
if d != now.Format(time.RFC1123Z) {
|
|
t.Errorf("EML with no date expected: %s, got: %s", now.Format(time.RFC1123Z), d)
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromStringBrokenFrom(t *testing.T) {
|
|
_, err := EMLToMsgFromString(exampleMailPlainBrokenFrom)
|
|
if err == nil {
|
|
t.Error("EML with broken FROM was supposed to fail, but didn't")
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromStringBrokenTo(t *testing.T) {
|
|
_, err := EMLToMsgFromString(exampleMailPlainBrokenTo)
|
|
if err == nil {
|
|
t.Error("EML with broken TO was supposed to fail, but didn't")
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromStringWithAttachment(t *testing.T) {
|
|
wantSubject := "Example mail // plain text base64 with attachment"
|
|
msg, err := EMLToMsgFromString(exampleMailPlainB64WithAttachment)
|
|
if err != nil {
|
|
t.Errorf("EML with attachment failed: %s", err)
|
|
}
|
|
if subject := msg.GetGenHeader(HeaderSubject); len(subject) > 0 && !strings.EqualFold(subject[0], wantSubject) {
|
|
t.Errorf("EMLToMsgFromString of EML with attachment failed: expected subject: %s, but got: %s",
|
|
wantSubject, subject[0])
|
|
}
|
|
if len(msg.attachments) != 1 {
|
|
t.Errorf("EMLToMsgFromString of EML with attachment failed: expected no. of attachments: %d, but got: %d",
|
|
1, len(msg.attachments))
|
|
}
|
|
}
|
|
|
|
func TestEMLToMsgFromStringWithEmbed(t *testing.T) {
|
|
wantSubject := "Example mail // plain text base64 with embed"
|
|
msg, err := EMLToMsgFromString(exampleMailPlainB64WithEmbed)
|
|
if err != nil {
|
|
t.Errorf("EML with embed failed: %s", err)
|
|
}
|
|
if subject := msg.GetGenHeader(HeaderSubject); len(subject) > 0 && !strings.EqualFold(subject[0], wantSubject) {
|
|
t.Errorf("EMLToMsgFromString of EML with embed failed: expected subject: %s, but got: %s",
|
|
wantSubject, subject[0])
|
|
}
|
|
if len(msg.embeds) != 1 {
|
|
t.Errorf("EMLToMsgFromString of EML with embed failed: expected no. of embeds: %d, but got: %d",
|
|
1, len(msg.attachments))
|
|
}
|
|
}
|
|
|
|
// stringToTempFile is a helper method that will create a temporary file form a give data string
|
|
func stringToTempFile(data, name string) (string, string, error) {
|
|
tempDir, err := os.MkdirTemp("", fmt.Sprintf("*-%s", name))
|
|
if err != nil {
|
|
return tempDir, "", fmt.Errorf("failed to create temp dir: %w", err)
|
|
}
|
|
filePath := fmt.Sprintf("%s/%s", tempDir, name)
|
|
err = os.WriteFile(filePath, []byte(data), 0666)
|
|
if err != nil {
|
|
return tempDir, "", fmt.Errorf("failed to write data to temp file: %w", err)
|
|
}
|
|
return tempDir, filePath, nil
|
|
}
|