94 commits

Author	SHA1	Message	Date
Winni Neessen	e1098091c3	Refactor variable names in SMTP client code ... The commit introduces improved variable names in the SMTP client code that are more expressive and better describe the function they perform. This is combined with corrections to some code comments. It's aimed to increase code readability and maintainability. Updates are made across the client_119.go and client.go files to ensure consistent naming conventions.	2024-02-24 22:06:18 +01:00
Winni Neessen	0cf9efcc69	Update SMTP authentication mechanisms and related tests ... Introduced the SMTPAuthNoAuth mechanism in the auth.go file meant for instances where authentication is not required or supported. Adjusted tests in client_test.go to account for this new mechanism. Minor order modifications were also made to the list of supported SMTP AUTH types and respective tests for better consistency. Closes #176	2024-02-22 15:24:19 +01:00
Winni Neessen	1efac7fb67	Add new test cases for client functionalities and clean client code ... Test cases have been added for numerous client functionalities including WithTLSPortPolicy option for the NewClient method, Client.SetSSLPort method, and the Client.DialWithContext method with the fallback port functionality. Minor code simplification has also been performed in the 'SetSSLPort' function in client.go file.	2024-01-31 11:22:01 +01:00
Winni Neessen	4a90c2de62	Add additional SSL and TLS tests in client_test.go ... Enhanced the unit tests in client_test.go by adding more test cases for SSL Port and TLS Port Policy. These additions contribute to more effective coverage of edge cases and increase the robustness of the test suite.	2024-01-25 16:56:15 +01:00
Winni Neessen	6746af4605	Update client tests for message delivery indication ... This commit adds checks in the testing functions to verify the successful implementation of message delivery status. A new attribute `isDelivered` is now being validated in our tests, reinforcing the message tracking system and enhancing the overall reliability of our application.	2024-01-23 11:21:56 +01:00
Nicola Murino	61b9e59dd2	oauth2: add more test cases	2023-06-04 10:47:19 +02:00
sters	e757327e1d	Adding WithDialContextFunc client option	2023-04-19 23:20:33 +09:00
Winni Neessen	6633591b51	Implement Logger interface ... As stated in https://github.com/wneessen/go-mail/pull/102#issuecomment-1411956040 it would be beneficial if, instead of forcing the Go stdlib logger on the user to provide a simple interface and use that for logging purposes. This PR implements this simple log.Logger interface as well as a standard logger that satisfies this interface. If no custom logger is provided, the Stdlog will be used (which makes use of the Go stdlib again). Accordingly, a `Client.WithLogger` and `Client.SetLogger` have been implemented. Same applies for the smtp counterparts.	2023-02-03 10:19:26 +01:00
Winni Neessen	63d8cef8ca	Refactor DSN handling from client.go to smtp.go ... This PR refactors the the DSN (RFC 1891) SMTP client handling, that was introduced in f4cdc61dd0. While most of the Client options stay the same, the whole workaround logic for the SMTP client has been removed and added as part of the SMTP client instead. This was we got rid of the Client's own `mail()`, `rcpt()`, `dsnRcpt()`, `dsnMail()` methods as well as the copies of the `cmd()` and `validateLine()` methods. The Client is now using the proper `Mail()` and `Rcpt()` methods of the SMTP client instead.	2023-01-18 10:30:06 +01:00
Winni Neessen	3922d3f195	Switched copyright header from me to "The go-mail Authors"	2023-01-15 16:14:19 +01:00
Winni Neessen	e36511e90e	Fix tests to not log authentication data ... We don't want to expose SMTP authentication details in tests, therefore the tests have been adjusted a bit	2023-01-14 13:05:04 +01:00
Winni Neessen	34b432a985	Implement debug logging in SMTP client ... Resolves #101. Since we now have full control over the SMTP client we can also access the message input and output. This PR introduces a new debug logging feature. Via the `Client.WithDebugLog` the user can enable this feature. It will then make use of the new `smtp/Client.SetDebugLog` method. Once the flag is set to true, the SMTP client will start logging incoming and outgoing messages to os.Stderr. Log directions will be output accordingly	2023-01-14 12:47:51 +01:00
Winni Neessen	f782f3f4fc	Merge branch 'main' into feature/97_fork-the-netsmtp-package-from-stdlib-into-go-mail	2023-01-12 01:31:36 +01:00
Winni Neessen	2f053ed8ab	#98 Set up FreeBSD tests via CirrusCI ... Need to debug the test-host for cirrus	2023-01-12 01:01:33 +01:00
Winni Neessen	0d6777ab39	Fork net/smpt into go-mail ... As part of #97 we are going to fork the official `net/smtp` package into go-mail to provide us with more flexibility. This commit fulfills the first big step of importing the package into smtp/. Also go-mail's own LoginAuth has been moved from auth/ into smtp/ to be consistent with the stdlib. There are still a couple of open issues (i. e. license adjustments and making golangci-lint happy) but so far all tests already work, which is a good start.	2023-01-10 00:38:42 +01:00
Winni Neessen	862749f863	Fix SMTP AUTH LOGIN method for servers with uncommon success messages ... This fixes #94 and basically reverts d0f0435. As James points out correctly in #94, we should not assume specific responses from the server. As long as the spec is followed and the server returns the correct SMTP code, we should not do our own magic. I've also extended the `getTestConnection` method in client_test.go, so that we can specify more test environment options like `TEST_PORT` and `TEST_TLS_SKIP_VERIFY`. This was needed for testing with the ProtonMail Bridge which listens on a different port and has non-trusted certificates.	2023-01-07 11:31:46 +01:00
Winni Neessen	b12b0bb363	Update client_test.go ... Co-authored-by: iwittkau <iwittkau@users.noreply.github.com>	2023-01-02 22:22:31 +01:00
Winni Neessen	2c7ea3e532	More changes in regard to #90 ... As proposed by @iwittkau the `SendError` type now has a `IsTemp()` method as well indicating to the user if the delivery error is retryable or not. Since we want to use it in the error response from the Client functions like `Send` or `DialAndSend` we need to return the SendError type not only as part of the `*Msg` but also as return value for these methods. Hence, the changes made for #85 been overhauled to return the new error type instead. In the pre Go1.20 version of the `Send()` method we need to return an accumulated version of the SendError type, since we don't have `errors.Join()` and therefore, if more than one error occurred during the delivery we return an ambiguous error reason since we can't tell which of the captured errors is main error. For more details the user can always check the `*Msg.SendError`	2023-01-02 12:14:14 +01:00
Winni Neessen	78df991399	Proposal change for #90 ... Did a complete overhaul of the senderror.go. - the list of `errors.New()` has been replaced with constant itoa error reasons as `SendErrReason`. Instead, the `Error()` method now reports the corresponding error message based on the reason. - The `SendError` received a `Is()` method so that we can use `errors.Is()` for very specific error checking. I.e. we can check for `&SendErrors{Reason: ErrSMTPMailFrom, isTemp: true}`. This provides much more flexibility in the error checking capabilities - A `isTemp` field has been added to the `SendError` type, indicating whether the received error is temporary and can be retried or not. Accordingly, the `*Msg` now has a `SendErrorIsTemp()` method indicating the same. The decision is based on the first 3 characters returned from the SMTP server. If the error code is within the 4xx range, the error is seen as temporary - A test for the SendError type has been added	2023-01-01 14:20:13 +01:00
Winni Neessen	47bff15de9	Introduction of a Msg error type as proposal for #90 ... This PR introduces the `SendError` type which implements the error interface. A new `senderror` field has been added to the `Msg` as well, so introduce this type to it. I've also added different error variables that indicate the different things that can go wrong during mail delivery. These variables can be checked for, for each `Msg` using the `errors.As` method The `Error()` method of `SendError` will return a detailed error string on why the `Msg` could not be delivered. Additionally, `HasSendError()` and `SendError()` methods have been added to `Msg`. While `HasSendError()` simply returns a bool in case a `Msg` failed during delivery, the `SendError()` will return the full `SendError` error interface.	2022-12-31 12:40:42 +01:00
James Elliott	567276d75d	feat: without noop option ... This allows disabling the Noop command during the dial. This is useful for servers which delay potentially unwanted clients when they perform commands other than AUTH.	2022-12-27 00:06:20 +11:00
Winni Neessen	48b4dc6b6c	Fix #85: Client.Send() failing for all messages if one is broken ... `Client.Send()` provides the possibility to send multiple `*Msg` in one go. If one of the `*Msg` caused an error with the sending mail server, we were returning completely, while not processing any `*Msg` that came after the failing message. This PR fixes this behaviour by processing each message first and then return a accumulated error in case any of the `*Msg` processing failed Additionally, this PR separates the `Client.Send()` method into two different versions. One that makes use of the new `errors.Join()` functionality that is introduced with Go 1.20 and one that handles it the old way for any supported version lower than Go 1.20	2022-12-10 13:41:00 +01:00
Winni Neessen	d200e982bf	Make golangci-lint errorlint happy	2022-10-17 18:16:00 +02:00
Winni Neessen	94ad8af58a	Make golangci-lint gofumpt happy	2022-10-17 18:13:00 +02:00
Winni Neessen	f53579fcf9	Closes #54 ... - Adds `DialAndSendWithContext()` and makes `DialAndSend()` use the new method	2022-09-26 10:40:57 +02:00
Winni Neessen	7b030473a6	Final set of unit tests for DSN	2022-09-12 09:31:42 +02:00
Winni Neessen	c52a437f7f	More tests	2022-09-11 22:05:43 +02:00
Winni Neessen	aed71397c0	Implemented DSNs as described in RFC 1891 ... - Added test coverage for the WithDSN* methods - Updated README.md accordingly	2022-09-11 21:07:15 +02:00
Winni Neessen	31001e87b2	#24: Add SPDX license IDs for REUSE compliance ... # SUMMARY * Bad licenses: * Deprecated licenses: * Licenses without file extension: * Missing licenses: * Unused licenses: * Used licenses: CC0-1.0, MIT * Read errors: 0 * Files with copyright information: 45 / 45 * Files with license information: 45 / 45 Congratulations! Your project is compliant with version 3.0 of the REUSE Specification :-)	2022-06-17 15:05:54 +02:00
Winni Neessen	4b99a9e830	More tests for client.go	2022-03-21 12:18:08 +01:00
Winni Neessen	db496f61cb	More tests for client.go. +80% coverage is probably the most we can get	2022-03-21 10:38:22 +01:00
Winni Neessen	f15d3ca25e	Add actual mail sending test to client_test.go	2022-03-21 10:17:48 +01:00
Winni Neessen	e909bd5499	More tests. 50% overall coverage now	2022-03-18 15:05:33 +01:00
Winni Neessen	b00116c892	More tests. 100% header.go coverage	2022-03-18 10:15:02 +01:00
Winni Neessen	fcd1bb8d12	Starting with client testing	2022-03-16 21:32:51 +01:00
Winni Neessen	1c699da955	More tests. Also testing GH's behaviour on ENV variables for testing	2022-03-16 21:02:31 +01:00
Winni Neessen	ec162e7836	More tests for client.go	2022-03-16 14:09:50 +01:00
Winni Neessen	a0ebc5bd78	More and better tests for client.go	2022-03-15 22:37:55 +01:00
Winni Neessen	ecfb966de6	Test fixed	2022-03-15 21:50:25 +01:00
Winni Neessen	fe3925c1e6	More tests coverage for client.go	2022-03-15 21:48:36 +01:00
Winni Neessen	2e1b27aec6	Adding more tests... coverage for client.go is now 30%	2022-03-15 21:10:29 +01:00
Winni Neessen	6285b5fb4f	More progress... calling it a day.	2022-03-09 16:52:23 +01:00
Winni Neessen	b3554a9578	Slow progress	2022-03-07 16:24:49 +01:00
Winni Neessen	2fcc0f59cd	Adding first tests	2022-03-06 15:15:42 +01:00