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Author SHA1 Message Date
Winni Neessen
761e205049
Fix client connection test error handling 
Changed variable assignment in the test to fix error handling. This ensures the error is properly caught and reported during the client connection process.
 2024-10-02 13:10:10 +02:00
Winni Neessen
9d70283af9
Reset response step in AUTH LOGIN initialization 
The addition of `a.respStep = 0` resets the response step counter at the beginning of the AUTH LOGIN process. This ensures that the state starts correctly and avoids potential issues related to residual values from previous authentications.
 2024-10-02 13:09:55 +02:00
Winni Neessen
93752280aa
Update smtp_test.go to add more authentication test cases 
Enhanced the LoginAuth test coverage by adding new scenarios with different sequences and invalid cases. This ensures more robust validation and better handling of edge cases in authentication testing.
 2024-10-02 12:54:32 +02:00
Winni Neessen
547f78dbee
Enhance SMTP LOGIN auth and add comprehensive tests 
Refactored SMTP LOGIN auth to improve compatibility with various server responses, consolidating error handling and response steps. Added extensive tests to verify successful and failed authentication across different server configurations.
 2024-10-02 12:37:54 +02:00
Winni Neessen
9bafa969b8
Merge pull request #310 from wneessen/feature/242_support-scram-sha 
SCRAM-SHA-1(-PLUS) / SCRAM-SHA-256(-PLUS) support
 2024-10-01 20:52:08 +02:00
Winni Neessen
72b3f53eb7
Add tests for unsupported SCRAM-SHA authentications 
Introduce a new test case `TestClient_AuthSCRAMSHAX_unsupported` to validate handling of unsupported SCRAM-SHA authentication methods. This ensures the client returns the correct errors when setting unsupported auth types.
 2024-10-01 20:45:07 +02:00
Winni Neessen
986a988c5d
Reset SMTP auth when setting SMTP auth type 
This change ensures that the smtpAuth field is reset to nil whenever the SMTP auth type is updated. This prevents potential issues with mismatched authentication settings.
 2024-10-01 20:44:50 +02:00
Winni Neessen
f823112a4d
Refactor: consolidate ErrNonTLSConnection variable 
The variable ErrNonTLSConnection has been simplified from a multi-line declaration to a single-line declaration. This increases code readability and maintains consistency with Go conventions.
 2024-10-01 20:32:41 +02:00
Winni Neessen
15b9ddf067
Refactor error handling for non-TLS SMTP connections 
Introduce a global error variable for non-TLS connections and update corresponding error handling across the codebase. This enhances readability and maintainability of the error management logic.
 2024-10-01 17:23:29 +02:00
Winni Neessen
5058fd5222
Add test for SCRAM-SHA authentication failure cases 
Implemented tests for various SCRAM-SHA authentication methods including SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, and SCRAM-SHA-256-PLUS with invalid credentials. This ensures that the client correctly handles and reports authentication failures.
 2024-10-01 17:01:10 +02:00
Winni Neessen
8838414c38
Fix incorrect error types for unsupported SMTP authentication 
Corrects the error messages returned for unsupported SMTP authentication types from ErrXOauth2AuthNotSupported to specific errors like ErrSCRAMSHA1AuthNotSupported, ErrSCRAMSHA256AuthNotSupported, and so on. This change improves the accuracy of error reporting for various SMTP authentication mechanisms.
 2024-10-01 17:00:57 +02:00
Winni Neessen
b69ad27de3
Add comments for SMTP authentication mechanisms 
Enhanced the documentation by adding detailed comments for each SMTP authentication type, specifying their references to RFC documents. Corrected comments for error variables to match the corresponding authentication schemas.
 2024-10-01 17:00:43 +02:00
Winni Neessen
7499bae3eb
Add unit tests for SCRAM-SHA authentication methods 
Introduce `TestClient_AuthSCRAMSHAX` to verify SCRAM-SHA-1 and SCRAM-SHA-256 authentication. These tests validate the creation, connection, and closing of clients with the respective authentication methods using environment-configured credentials.
 2024-10-01 16:45:02 +02:00
Winni Neessen
324be9d032
Refactor SCRAM tests to include SHA-256-PLUS 
Updated `TestClient_AuthSCRAMSHA1PLUS_tlsexporter` and `TestClient_AuthSCRAMSHA1PLUS_tlsunique` to test both SCRAM-SHA-1-PLUS and SCRAM-SHA-256-PLUS authentication types. Implemented table-driven tests to improve readability and maintainability.
 2024-10-01 16:43:36 +02:00
Winni Neessen
bcf7084982
Add detailed documentation comments for SCRAM methods 
Enhanced code readability and maintainability by adding comprehensive documentation comments to all methods and struct definitions in the `smtp/auth_scram.go` file. This improves clarity on the functionality and usage of the SCRAM (Salted Challenge Response Authentication Mechanism) methods and structures.
 2024-10-01 16:39:13 +02:00
Winni Neessen
abab0af2a3
Simplify sponsor appreciation message 
Revise the sponsors section in README.md to convey gratitude more concisely. Removed redundant phrasing and made the message more direct while ensuring the intent remains clear.
 2024-10-01 16:01:58 +02:00
Winni Neessen
687843ee53
Enhance contributors section and add sponsors acknowledgment 
Updated the Authors/Contributors section to include a graphical representation of contributors and added special thanks to Maria Letta for the logo design. Introduced a new Sponsors section to acknowledge the support from sponsors.
 2024-10-01 15:57:01 +02:00
Winni Neessen
cace4890bc
Update README.md wordings for clarity 
Refined the wording in the README.md to enhance readability and clarity. Changed some sentences to past perfect tense and added backticks around `smtp` for consistency with code references.
 2024-10-01 15:47:07 +02:00
Winni Neessen
e5b87db448
Update README to clarify library features and dependencies 
Revised the README to provide clearer explanations of the library's origins, dependencies, and features. Added details on the small dependency footprint and enhanced SMTP Auth methods, and emphasized the concurrency-safe reuse of SMTP connections.
 2024-10-01 15:41:26 +02:00
Winni Neessen
5b5991f17d
Merge branch 'main' into feature/242_support-scram-sha 2024-10-01 15:30:22 +02:00
Winni Neessen
e8f3c444e6
Add SCRAM-SHA1-PLUS authentication tests 
Introduced two new unit tests for SCRAM-SHA1-PLUS authentication with TLS exporter and TLS unique options. These tests ensure proper client creation, connection, and disconnection processes are functioning as expected in online environments.
 2024-10-01 15:28:53 +02:00
Winni Neessen
27838f5b1f
Improve TLS state handling and add SCRAM-SHA-256 auth support 
Replaced direct TLSConnectionState call with error handling for TLS state retrieval. Introduced SCRAM-SHA-256 support in the SMTP authentication process.
 2024-10-01 15:28:10 +02:00
Winni Neessen
3013975c6a
Rename and refactor SCRAM authentication methods 
Updated method names to more accurately reflect their authentication mechanisms (SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, SCRAM-SHA-256-PLUS). Revised corresponding comments to improve clarity and maintain consistency.
 2024-10-01 15:27:31 +02:00
Winni Neessen
c797f0be17
Add REUSE.toml 
Replaced deprecated .reuse/dep5 with REUSE.toml config file
 2024-10-01 15:27:05 +02:00
Winni Neessen
b96badbd59
Add license file for go.sum 
Introduce a go.sum.license file to explicitly state the licensing terms for the go.sum file. This ensures proper attribution and compliance with open-source licensing requirements.
 2024-10-01 15:25:51 +02:00
Winni Neessen
738f43e289
Add GetTLSConnectionState method to SMTP client 
Introduce a method to retrieve the TLS connection state of the client's current connection. This method checks if the connection uses TLS and is established, returning appropriate errors otherwise.
 2024-10-01 11:05:42 +02:00
Winni Neessen
ebd171005d
Update dependencies in go.mod and go.sum 
Added `golang.org/x/crypto v0.27.0` and `golang.org/x/text v0.18.0` to go.mod. Updated go.sum to reflect these changes for proper dependency management.
 2024-10-01 11:05:07 +02:00
Winni Neessen
4f1a60760d
Add support for SCRAM-SHA authentication methods 
Extended SMTP authentication to include SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, and SCRAM-SHA-256-PLUS methods. This enhancement provides more secure and flexible authentication options for SMTP clients.
 2024-10-01 11:04:16 +02:00
Winni Neessen
e8fc6cd78f
Add SCRAM-SHA support to SMTP authentication 
Introduced additional SMTP authentication mechanisms: SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, and SCRAM-SHA-256-PLUS. Added corresponding error messages for unsupported authentication types. This enhances security options for SMTP connections.
 2024-10-01 11:04:01 +02:00
Winni Neessen
9069c9cdff
Add SCRAM-SHA support to SMTP authentication 
Introduced additional SMTP authentication mechanisms: SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, and SCRAM-SHA-256-PLUS. Added corresponding error messages for unsupported authentication types. This enhances security options for SMTP connections.
 2024-10-01 11:03:44 +02:00
Winni Neessen
627216425f
Merge pull request #309 from wneessen/dependabot/github_actions/github/codeql-action-3.26.10 
Bump github/codeql-action from 3.26.9 to 3.26.10
 2024-09-30 15:42:23 +02:00
dependabot[bot]
012082978d
Bump github/codeql-action from 3.26.9 to 3.26.10 
Bumps [github/codeql-action](https://github.com/github/codeql-action) from 3.26.9 to 3.26.10.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](461ef6c76d...e2b3eafc8d)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
 2024-09-30 13:36:41 +00:00
Winni Neessen
65a91a2711
Merge pull request #307 from wneessen/feature/269_goroutineconcurrency-safety 
go-mail goroutine-/thread-safety
 2024-09-27 17:17:00 +02:00
Winni Neessen
c1f6ef07d4
Skip test cases when client creation fails 
Updated the client creation check to skip test cases if the client cannot be created, instead of marking them as errors. This ensures tests dependent on a successful client creation do not fail unnecessarily but are instead skipped.
 2024-09-27 17:09:00 +02:00
Winni Neessen
6e98d7e47d
Reduce message loop iterations and add XOAUTH2 tests 
Loop iterations in `client_test.go` were reduced from 50 to 20 for efficiency. Added new tests to verify XOAUTH2 authentication support and error handling by simulating SMTP server responses.
 2024-09-27 17:00:21 +02:00
Winni Neessen
8791ce5a33
Fix deferred mutex unlock in TLSConnectionState 
Correct the sequence of mutex unlocking in TLSConnectionState to ensure the mutex is always released properly. This prevents potential deadlocks and ensures the function behaves as expected in a concurrent context.
 2024-09-27 17:00:07 +02:00
Winni Neessen
2d98c40cb6
Add concurrent send tests for Client 
Introduced TestClient_DialSendConcurrent_online and TestClient_DialSendConcurrent_local to validate concurrent sending of messages. These tests ensure that the Client's send functionality works correctly under concurrent conditions, both in an online environment and using a local test server.
 2024-09-27 14:04:02 +02:00
Winni Neessen
253d065c83
Move mutex lock to sendSingleMsg method 
Mutex locking was relocated from the Send method in client_120.go and client_119.go to sendSingleMsg in client.go. This ensures thread-safety specifically during the message transmission process.
 2024-09-27 14:03:50 +02:00
Winni Neessen
6bd9a9c735
Refactor mutex usage for connection safety 
This commit revises locking mechanism usage around connection operations to avoid potential deadlocks and improve code clarity. Specifically, defer statements were removed and explicit unlocks were added to ensure that mutexes are properly released after critical sections. This change affects several methods, including `Close`, `cmd`, `TLSConnectionState`, `UpdateDeadline`, and newly introduced locking for concurrent data writes and reads in `dataCloser`.
 2024-09-27 14:03:26 +02:00
Winni Neessen
f59aa23ed8
Add mutex locking to SetTLSConfig 
This change ensures that the SetTLSConfig method is thread-safe by adding a mutex lock. The lock is acquired before any changes to the TLS configuration and released afterward to prevent concurrent access issues.
 2024-09-27 11:58:08 +02:00
Winni Neessen
2234f0c5bc
Remove connection field from Client struct 
This commit removes the 'connection' field from the 'Client' struct and updates the related test logic accordingly. By using 'smtpClient.HasConnection()' to check for connections, code readability and maintainability are improved. All necessary test cases have been adjusted to reflect this change.
 2024-09-27 11:43:22 +02:00
Winni Neessen
fdb80ad9dd
Add mutex to Client for thread-safe operations 
This commit introduces a RWMutex to the Client struct in the smtp package to ensure thread-safe access to shared resources. Critical sections in methods like Close, StartTLS, and cmd are now protected with appropriate locking mechanisms. This change helps prevent potential race conditions, ensuring consistent and reliable behavior in concurrent environments.
 2024-09-27 11:10:23 +02:00
Winni Neessen
fec2f2075a
Update build tags to support future Go versions 
Modified the build tags to exclude Go 1.20 and above instead of targeting only Go 1.19. This change ensures the code is compatible with future versions of Go by not restricting it to a specific minor version.
 2024-09-27 10:52:30 +02:00
Winni Neessen
2084526c77
Refactor Client struct to improve organization and clarity 
Rearranged and grouped struct fields more logically within Client. Introduced the dialContextFunc and fallbackPort fields to enhance connection flexibility. Minor code style adjustments were also made for better readability.
 2024-09-27 10:36:09 +02:00
Winni Neessen
23c71d608f
Lock mutex before checking connection in Send method 
Added mutex locking in the `Send` method for both `client_120.go` and `client_119.go`. This ensures thread-safe access to the connection checks and prevents potential race conditions.
 2024-09-27 10:33:28 +02:00
Winni Neessen
371b950bc7
Refactor Client struct for better readability and organization 
Reordered and grouped fields in the Client struct for clarity. The reorganization separates logical groups of fields, making it easier to understand and maintain the code. This includes proper grouping of TLS parameters, DSN options, and debug settings.
 2024-09-27 10:33:19 +02:00
Winni Neessen
b2c4b533d7
Merge branch 'main' into feature/269_goroutineconcurrency-safety 2024-09-27 10:26:39 +02:00
Winni Neessen
3871b2be44
Lock client connections and update deadline handling 
Add mutex locking for client connections to ensure thread safety. Introduce `HasConnection` method to check active connections and `UpdateDeadline` method to handle timeout updates. Refactor connection handling in `checkConn` and `tls` methods accordingly.
 2024-09-26 11:51:30 +02:00
Winni Neessen
8683917c3d
Delete connection pool implementation and tests 
Remove `connpool.go` and `connpool_test.go`. This eliminates the connection pool feature from the codebase, including associated functionality and tests. The connection pool feature is much to complex and doesn't provide the benefits expected by the concurrency feature
 2024-09-26 11:49:48 +02:00
Winni Neessen
077c85bea0
Merge pull request #305 from wneessen/dependabot/github_actions/sonarsource/sonarqube-scan-action-884b79409bbd464b2a59edc326a4b77dc56b2195 
Bump sonarsource/sonarqube-scan-action from f885e52a7572cf7943f28637e75730227df2dbf2 to 884b79409bbd464b2a59edc326a4b77dc56b2195
 2024-09-25 16:00:56 +02:00