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875 commits

Author SHA1 Message Date
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
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
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
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
5b5991f17d
Merge branch 'main' into feature/242_support-scram-sha 2024-10-01 15:30:22 +02:00
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
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
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
c797f0be17
Add REUSE.toml
Replaced deprecated .reuse/dep5 with REUSE.toml config file
2024-10-01 15:27:05 +02:00
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
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
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
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
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
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
627216425f
Merge pull request 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
65a91a2711
Merge pull request from wneessen/feature/269_goroutineconcurrency-safety
go-mail goroutine-/thread-safety
2024-09-27 17:17:00 +02:00
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
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
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
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
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
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
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
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
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
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
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
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
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
b2c4b533d7
Merge branch 'main' into feature/269_goroutineconcurrency-safety 2024-09-27 10:26:39 +02:00
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
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
077c85bea0
Merge pull request 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
909e699b99
Merge pull request from wneessen/dependabot/github_actions/github/codeql-action-3.26.9
Bump github/codeql-action from 3.26.8 to 3.26.9
2024-09-25 16:00:44 +02:00
dependabot[bot]
b97073db19
Bump github/codeql-action from 3.26.8 to 3.26.9
Bumps [github/codeql-action](https://github.com/github/codeql-action) from 3.26.8 to 3.26.9.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](294a9d9291...461ef6c76d)

---
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>
2024-09-25 13:58:44 +00:00
dependabot[bot]
d75d990124
Bump sonarsource/sonarqube-scan-action
Bumps [sonarsource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action) from f885e52a7572cf7943f28637e75730227df2dbf2 to 884b79409bbd464b2a59edc326a4b77dc56b2195.
- [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases)
- [Commits](f885e52a75...884b79409b)

---
updated-dependencies:
- dependency-name: sonarsource/sonarqube-scan-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
2024-09-25 13:58:36 +00:00
0676d99f20
Merge pull request from wneessen/dependabot/github_actions/sonarsource/sonarqube-scan-action-f885e52a7572cf7943f28637e75730227df2dbf2
Bump sonarsource/sonarqube-scan-action from 0c0f3958d90fc466625f1d1af1f47bddd4cc6bd1 to f885e52a7572cf7943f28637e75730227df2dbf2
2024-09-24 15:50:50 +02:00
dependabot[bot]
d6725b2d63
Bump sonarsource/sonarqube-scan-action
Bumps [sonarsource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action) from 0c0f3958d90fc466625f1d1af1f47bddd4cc6bd1 to f885e52a7572cf7943f28637e75730227df2dbf2.
- [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases)
- [Commits](0c0f3958d9...f885e52a75)

---
updated-dependencies:
- dependency-name: sonarsource/sonarqube-scan-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
2024-09-24 13:48:36 +00:00
fd115d5173
Remove typo from comment in smtp_ehlo_117.go
Fixed a typo in the backward compatibility comment for Go 1.16/1.17 in smtp_ehlo_117.go. This ensures clarity and correctness in documentation.
2024-09-23 14:15:43 +02:00
4f6224131e
Rename test for accurate context cancellation
Updated the test name from `TestConnPool_GetContextTimeout` to `TestConnPool_GetContextCancel` to better reflect its functionality. This change improves test readability and maintains consistency with the context usage in the test.
2024-09-23 13:46:41 +02:00
c8684886ed
Refactor Get method to include context argument
Updated the Get method in connpool.go and its usage in tests to include a context argument for better cancellation and timeout handling. Removed the redundant dialContext field from the connection pool struct and added a new test to validate context timeout behavior.
2024-09-23 13:44:03 +02:00
07e7b17ae8
Add tests for ConnPool close and concurrency issues
This commit introduces two new tests: `TestConnPool_Close` and `TestConnPool_Concurrency`. The former ensures the proper closing of connection pool resources, while the latter checks for concurrency issues by creating and closing multiple connections in parallel.
2024-09-23 11:45:22 +02:00
2abdee743d
Add unit test for marking connection as unusable
Introduces `TestPoolConn_MarkUnusable` to ensure the pool maintains its integrity when a connection is marked unusable. This test validates that the connection pool size adjusts correctly after marking a connection as unusable and closing it.
2024-09-23 11:27:05 +02:00
5503be8451
Remove redundant error print statements
Removed redundant fmt.Printf error print statements for connection read and write errors. This cleans up the test output and makes error handling more streamlined.
2024-09-23 11:26:54 +02:00
774925078a
Improve error handling in connection pool tests
Add error checks to Close() calls in connpool_test.go to ensure connection closures are handled properly, with descriptive error messages. Update comment in connpool.go to improve clarity on the source of code inspiration.
2024-09-23 11:17:58 +02:00
f1188bdad7
Add test for PoolConn Close method
This commit introduces a new test, `TestPoolConn_Close`, to verify that connections are correctly closed and returned to the pool. It sets up a simple SMTP server, creates a connection pool, tests writing to and closing connections, and checks the pool size to ensure proper behavior.
2024-09-23 11:15:56 +02:00
2cbd0c4aef
Add test cases for connection pool functionality
Added new test cases `TestConnPool_Get_Type` and `TestConnPool_Get` to verify connection pool operations. These tests ensure proper connection type and handling of pool size after connection retrieval and usage.
2024-09-23 11:09:11 +02:00
9a9e0c936d
Remove redundant error handling in test code
The check for io.EOF and the associated print statement were unnecessary because the loop breaks on any error. This change simplifies the error handling logic in the `client_test.go` file and avoids redundant code.
2024-09-23 11:09:03 +02:00