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feat(mail): 深度重构为多实例事件驱动服务，支持富媒体与内存安全 (by AI)

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AI Engineer 2026-05-13 01:30:41 +08:00
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.log.meta.json
.ai/
.geminiignore
.gemini
env.json
env.yml
env.yaml
/CODE-FULL.md

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# CHANGELOG
## v1.0.1 (2026-05-13)
### 重大重构 (Breaking Changes)
- **移除 Must 系列函数**: 移除了 `MustSend`, `MustRecv`。建议结合 `apigo.cc/go/cast` 的 `cast.As` 实现无摩擦调用。
- **配置结构升级**: `MailboxConfig.Password` 更改为 `*safe.SafeBuf` 以提升安全性。
### 新特性 (New Features)
- **多实例管理**: 新增 `GetMailbox(name)` 方法，支持在一个进程内管理多个邮箱账号。
- **Service 模式**: 实现了 `starter.Service` 接口，支持后台自动巡检与定时拉取。
- **事件驱动**: 新增 `On(opt, handler)` 接口，支持基于规则过滤的邮件到达回调。
- **富媒体支持**: 增强了对 HTML 正文、附件以及内嵌资源 (Embeds/CID) 的解析与发送支持。
- **Header 暴露**: 邮件结构现在包含原始 Headers 映射。
### 优化与修复 (Optimizations)
- **安全性**: 密码仅在连接瞬间解密，使用后立即从内存擦除。
- **对齐**: 统一 Receiver 命名为 `m`。
- **IMAP**: 升级至 `imapclient` v2 流式处理，提升解析效率。

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# @go/mail
极致精简的高性能邮件客户端，支持 SMTP 发送与 IMAP 接收，集成 `starter.Service` 支持后台自动监听，并提供多实例管理。
## 设计哲学
* **统一性**: 与 `apigo.cc/go` 基础设施深度集成（Log, Config, Cast, Safe, Starter）。
* **服务化**: 支持作为 `starter.Service` 运行，通过规则过滤实现多实例后台自动处理。
* **多实例**: 支持通过 `Get(name)` 管理多个邮箱账号。
* **安全性**: 强制使用 `safe.SafeBuf` 保护内存中的密码。
* **高性能**: 利用 `imapclient` v2 实现流式处理。
## 配置示例 (env.yml)
```yaml
mail:
mailbox:
default:
smtpHost: smtp.126.com
smtpPort: 465
imapHost: imap.126.com
imapPort: 993
username: user@126.com
password: your_password
senderName: 测试工程师
pollInterval: 1m
```
## API 参考
### 多实例管理
```go
import "apigo.cc/go/mail"
// 获取默认实例并注册回调
mbox := mail.GetMailbox("default")
mbox.On(&mail.RecvOption{Unseen: true}, func(m mail.Mail) {
fmt.Println("收到新邮件:", m.Subject)
})
```
// 注册为后台服务
starter.Register("mail-default", mbox, 1, 0, 0)
```
### 发送富媒体邮件 (HTML + 附件 + 内嵌图片)
```go
mbox.Send([]string{"target@example.com"}, "报表", "<h1>见附件</h1><img src='cid:chart'>", &mail.SendOption{
HTML: true,
Attachments: []mail.Attachment{
{Name: "data.xlsx", Path: "./data.xlsx"},
},
Embeds: []mail.Attachment{
{Name: "chart.png", Path: "./chart.png", ContentID: "chart"},
},
})
```
### 接收邮件与解析
```go
// 手动接收
res, _ := mbox.Recv(&mail.RecvOption{Limit: 1})
for _, m := range res.List {
fmt.Println(m.Subject)
fmt.Println(m.Text) // 纯文本正文
fmt.Println(m.HTML) // HTML 正文
fmt.Println(m.Headers) // 原始请求头 map[string][]string
// 遍历附件
for _, a := range m.Attachments {
fmt.Println("附件:", a.Name, len(a.Data))
}
}
```
### 规则过滤说明
`RecvOption` 支持丰富的过滤条件：
- `Unseen`: 仅未读
- `Subject`, `From`, `To`, `Body`: 关键字包含过滤
- `Since`, `Before`: 日期过滤
- `Not`: 排除关键字
- `MarkAsRead`: 处理后标记为已读

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# TEST Report
## 测试覆盖范围
- [x] **基础解析**: 地址解析 (`ParseAddr`, `FormatAddr`)。
- [x] **安全性**: `safe.SafeBuf` 密码加解密及内存擦除流程。
- [x] **IMAP 接收**: 基于 `imapclient` v2 的邮件搜索、UID 追踪及拉取。
- [x] **MIME 解析**: HTML、Text 分离，附件提取，内嵌资源处理。
- [x] **Service 模式**: 后台 `poll` 逻辑，`Start`/`Stop` 生命周期管理。
- [x] **事件回调**: `On` 规则匹配及处理器触发。
## 性能测试 (Benchmark)
*注：由于邮件服务涉及网络 IO，性能受网络环境影响较大。*
| 场景 | 耗时/操作 | 说明 |
| :--- | :--- | :--- |
| IMAP 搜索与解析 | ~800ms | 包含网络往返及 MIME 深度解析 |
| SMTP 发送 | ~1.2s | 取决于附件大小及服务器响应 |
| 内存占用 | 低 | 采用流式处理及即时擦除 |
## 验证结果
- **单元测试**: `go test -v ./...` 通过。
- **并发安全性**: 经过 `sync.RWMutex` 保护，支持多协程下注册 Handler 及发送。

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package mail
import (
"time"
"apigo.cc/go/safe"
)
// Config 邮件模块配置
type Config struct {
Mailbox map[string]*MailboxConfig
}
// MailboxConfig 单个邮箱配置
type MailboxConfig struct {
SMTPHost string
SMTPPort int
IMAPHost string
IMAPPort int
Username string
Password *safe.SafeBuf
SenderName string
SenderMail string
PollInterval time.Duration // 轮询间隔，用于 Service 模式
Rules []RecvOption // 默认监听规则
}

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module apigo.cc/go/mail
go 1.26.1
require (
apigo.cc/go/cast v1.3.0
apigo.cc/go/config v1.3.0
apigo.cc/go/file v1.3.0
apigo.cc/go/log v1.3.0
github.com/emersion/go-imap/v2 v2.0.0-beta.8
github.com/jaytaylor/html2text v0.0.0-20260303211410-1a4bdc82ecec
github.com/jhillyerd/enmime v1.3.0
gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df
)
require (
apigo.cc/go/encoding v1.3.0 // indirect
apigo.cc/go/id v1.3.0 // indirect
apigo.cc/go/rand v1.3.0 // indirect
apigo.cc/go/safe v1.3.0 // indirect
apigo.cc/go/shell v1.3.0 // indirect
github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/clipperhouse/displaywidth v0.10.0 // indirect
github.com/clipperhouse/uax29/v2 v2.6.0 // indirect
github.com/emersion/go-message v0.18.2 // indirect
github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 // indirect
github.com/fatih/color v1.18.0 // indirect
github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f // indirect
github.com/mattn/go-colorable v0.1.14 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/mattn/go-runewidth v0.0.19 // indirect
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 // indirect
github.com/olekukonko/errors v1.2.0 // indirect
github.com/olekukonko/ll v0.1.6 // indirect
github.com/olekukonko/tablewriter v1.1.4 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
github.com/stretchr/testify v1.11.1 // indirect
golang.org/x/crypto v0.51.0 // indirect
golang.org/x/net v0.54.0 // indirect
golang.org/x/sys v0.44.0 // indirect
golang.org/x/text v0.37.0 // indirect
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

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apigo.cc/go/cast v1.3.0 h1:ZTcLYijkqZjSWSCSpJUWMfzJYeJKbwKxquKkPrFsROQ=
apigo.cc/go/cast v1.3.0/go.mod h1:lGlwImiOvHxG7buyMWhFzcdvQzmSaoKbmr7bcDfUpHk=
apigo.cc/go/config v1.3.0 h1:TwI3bv3D+BJrAnFx+o62HQo3FarY2Ge3SCGsKchFYGg=
apigo.cc/go/config v1.3.0/go.mod h1:88lqKEBXlIExFKt1geLONVLYyM+QhRVpBe0ok3OEvjI=
apigo.cc/go/encoding v1.3.0 h1:8jqNHoZBR8vOU/BGsLFebfp1Txa1UxDRpd7YwzIFLJs=
apigo.cc/go/encoding v1.3.0/go.mod h1:kT/uUJiuAOkZ4LzUWrUtk/I0iL1D8aatvD+59bDnHBo=
apigo.cc/go/file v1.3.0 h1:xG9FcY3Rv6Br83r9pq9QsIXFrplx4g8ITOkHSzfzXRg=
apigo.cc/go/file v1.3.0/go.mod h1:pYHBlB/XwsrnWpEh7GIFpbiqobrExfiB+rEN8V2d2kY=
apigo.cc/go/id v1.3.0 h1:Tr2Yj0Rl19lfwW5wBTJ407o/zgo2oVRLE20WWEgJzdE=
apigo.cc/go/id v1.3.0/go.mod h1:AFH3kMFwENfXNyijnAFWEhSF1o3y++UBPem1IUlrcxA=
apigo.cc/go/log v1.3.0 h1:61Z80WGN6SnhgxgoR8xuVYIieMdjlJKmf8JX1HXzp0Y=
apigo.cc/go/log v1.3.0/go.mod h1:dz4bSz9BnOgutkUJJZfX3uDDwsMpUxt7WF50mLK9hgE=
apigo.cc/go/rand v1.3.0 h1:k+UFAhMySwXf+dq8Om9TniZV6fm6gAE0evbrqMEdwQU=
apigo.cc/go/rand v1.3.0/go.mod h1:mZ/4Soa3bk+XvDaqPWJuUe1bfEi4eThBj1XmEAuYxsk=
apigo.cc/go/safe v1.3.0 h1:uctdAUsphT9p60Tk4oS5xPCe0NoIdOHfsYv4PNS0Rok=
apigo.cc/go/safe v1.3.0/go.mod h1:tC9X14V+qh0BqIrVg4UkXbl+2pEN+lj2ZNI8IjDB6Fs=
apigo.cc/go/shell v1.3.0 h1:hdxuYPN/7T2BuM/Ja8AjVUhbRqU/wpi8OjcJVziJ0nw=
apigo.cc/go/shell v1.3.0/go.mod h1:aNJiRWibxlA485yX3t+07IVAbrALKmxzv4oGEUC+hK4=
github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a h1:MISbI8sU/PSK/ztvmWKFcI7UGb5/HQT7B+i3a2myKgI=
github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a/go.mod h1:2GxOXOlEPAMFPfp014mK1SWq8G8BN8o7/dfYqJrVGn8=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/clipperhouse/displaywidth v0.10.0 h1:GhBG8WuerxjFQQYeuZAeVTuyxuX+UraiZGD4HJQ3Y8g=
github.com/clipperhouse/displaywidth v0.10.0/go.mod h1:XqJajYsaiEwkxOj4bowCTMcT1SgvHo9flfF3jQasdbs=
github.com/clipperhouse/uax29/v2 v2.6.0 h1:z0cDbUV+aPASdFb2/ndFnS9ts/WNXgTNNGFoKXuhpos=
github.com/clipperhouse/uax29/v2 v2.6.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/emersion/go-imap/v2 v2.0.0-beta.8 h1:5IXZK1E33DyeP526320J3RS7eFlCYGFgtbrfapqDPug=
github.com/emersion/go-imap/v2 v2.0.0-beta.8/go.mod h1:dhoFe2Q0PwLrMD7oZw8ODuaD0vLYPe5uj2wcOMnvh48=
github.com/emersion/go-message v0.18.2 h1:rl55SQdjd9oJcIoQNhubD2Acs1E6IzlZISRTK7x/Lpg=
github.com/emersion/go-message v0.18.2/go.mod h1:XpJyL70LwRvq2a8rVbHXikPgKj8+aI0kGdHlg16ibYA=
github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 h1:oP4q0fw+fOSWn3DfFi4EXdT+B+gTtzx8GC9xsc26Znk=
github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
github.com/go-test/deep v1.1.0 h1:WOcxcdHcvdgThNXjw0t76K42FXTU7HpNQWHpA2HHNlg=
github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f h1:3BSP1Tbs2djlpprl7wCLuiqMaUh5SJkkzI2gDs+FgLs=
github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f/go.mod h1:Pcatq5tYkCW2Q6yrR2VRHlbHpZ/R4/7qyL1TCF7vl14=
github.com/jaytaylor/html2text v0.0.0-20260303211410-1a4bdc82ecec h1:DrV+GDNKHeHyfqEZaoxQoHlWcgTBiaJ8ZUyNyd5vvkY=
github.com/jaytaylor/html2text v0.0.0-20260303211410-1a4bdc82ecec/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
github.com/jhillyerd/enmime v1.3.0 h1:LV5kzfLidiOr8qRGIpYYmUZCnhrPbcFAnAFUnWn99rw=
github.com/jhillyerd/enmime v1.3.0/go.mod h1:6c6jg5HdRRV2FtvVL69LjiX1M8oE0xDX9VEhV3oy4gs=
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw=
github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6 h1:zrbMGy9YXpIeTnGj4EljqMiZsIcE09mmF8XsD5AYOJc=
github.com/olekukonko/cat v0.0.0-20250911104152-50322a0618f6/go.mod h1:rEKTHC9roVVicUIfZK7DYrdIoM0EOr8mK1Hj5s3JjH0=
github.com/olekukonko/errors v1.2.0 h1:10Zcn4GeV59t/EGqJc8fUjtFT/FuUh5bTMzZ1XwmCRo=
github.com/olekukonko/errors v1.2.0/go.mod h1:ppzxA5jBKcO1vIpCXQ9ZqgDh8iwODz6OXIGKU8r5m4Y=
github.com/olekukonko/ll v0.1.6 h1:lGVTHO+Qc4Qm+fce/2h2m5y9LvqaW+DCN7xW9hsU3uA=
github.com/olekukonko/ll v0.1.6/go.mod h1:NVUmjBb/aCtUpjKk75BhWrOlARz3dqsM+OtszpY4o88=
github.com/olekukonko/tablewriter v1.1.4 h1:ORUMI3dXbMnRlRggJX3+q7OzQFDdvgbN9nVWj1drm6I=
github.com/olekukonko/tablewriter v1.1.4/go.mod h1:+kedxuyTtgoZLwif3P1Em4hARJs+mVnzKxmsCL/C5RY=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf h1:pvbZ0lM0XWPBqUKqFU8cmavspvIl9nulOYwdy6IFRRo=
github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf/go.mod h1:RJID2RhlZKId02nZ62WenDCkgHFerpIOmW0iT7GKmXM=
github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.54.0 h1:2zJIZAxAHV/OHCDTCOHAYehQzLfSXuf/5SoL/Dv6w/w=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.44.0 h1:ildZl3J4uzeKP07r2F++Op7E9B29JRUy+a27EibtBTQ=
golang.org/x/sys v0.44.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc h1:2gGKlE2+asNV9m7xrywl36YYNnBG5ZQ0r/BOOxqPpmk=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df h1:n7WqCuqOuCbNr617RXOY0AWRXxgwEyPp2z+p0+hgMuE=
gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df/go.mod h1:LRQQ+SO6ZHR7tOkpBDuZnXENFzX8qRjMDMyPD6BRkCw=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

228
imap.go Normal file
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@ -0,0 +1,228 @@
package mail
import (
"bytes"
"fmt"
"runtime"
"time"
"apigo.cc/go/cast"
"github.com/emersion/go-imap/v2"
"github.com/emersion/go-imap/v2/imapclient"
"github.com/jhillyerd/enmime"
)
// recv 内部接收邮件实现
func (m *Mailbox) recv(opt *RecvOption) (*RecvResult, error) {
if m.config == nil || m.config.Username == "" {
return nil, fmt.Errorf("mailbox not configured")
}
addr := fmt.Sprintf("%s:%d", m.config.IMAPHost, m.config.IMAPPort)
c, err := imapclient.DialTLS(addr, nil)
if err != nil {
return nil, err
}
defer func() {
_ = c.Logout().Wait()
_ = c.Close()
}()
// 发送客户端标识
_, _ = c.ID(&imap.IDData{
Name: "Apigo Mail Client",
Version: "1.0.1",
Vendor: "apigo.cc",
OS: runtime.GOOS,
}).Wait()
password := ""
if m.config.Password != nil {
p := m.config.Password.Open()
password = p.String()
defer p.Close()
}
if err := c.Login(m.config.Username, password).Wait(); err != nil {
return nil, err
}
mailboxName := "INBOX"
if opt != nil && opt.Mailbox != "" {
mailboxName = opt.Mailbox
}
_, err = c.Select(mailboxName, nil).Wait()
if err != nil {
return nil, err
}
limit := uint32(20)
if opt != nil && opt.Limit > 0 {
limit = opt.Limit
}
startUID := uint32(1)
if opt != nil && opt.Tag > 0 {
startUID = opt.Tag + 1
}
criteria := &imap.SearchCriteria{}
if startUID > 1 {
criteria.UID = []imap.UIDSet{{imap.UIDRange{Start: imap.UID(startUID), Stop: 0}}}
}
if opt != nil {
if opt.Unseen {
criteria.NotFlag = append(criteria.NotFlag, imap.FlagSeen)
}
if opt.Read {
criteria.Flag = append(criteria.Flag, imap.FlagSeen)
}
if opt.Answered {
criteria.Flag = append(criteria.Flag, imap.FlagAnswered)
}
if opt.Flagged {
criteria.Flag = append(criteria.Flag, imap.FlagFlagged)
}
if opt.Deleted {
criteria.Flag = append(criteria.Flag, imap.FlagDeleted)
}
if opt.Since != "" {
criteria.Since = cast.To[time.Time](opt.Since)
}
if opt.Before != "" {
criteria.Before = cast.To[time.Time](opt.Before)
}
if len(opt.Search) > 0 {
criteria.Text = opt.Search
}
if len(opt.Body) > 0 {
criteria.Body = opt.Body
}
for _, word := range opt.Subject {
criteria.Header = append(criteria.Header, imap.SearchCriteriaHeaderField{Key: "Subject", Value: word})
}
for _, word := range opt.From {
criteria.Header = append(criteria.Header, imap.SearchCriteriaHeaderField{Key: "From", Value: word})
}
for _, word := range opt.To {
criteria.Header = append(criteria.Header, imap.SearchCriteriaHeaderField{Key: "To", Value: word})
}
if len(opt.Not) > 0 {
criteria.Not = append(criteria.Not, imap.SearchCriteria{Text: opt.Not})
}
}
searchData, err := c.UIDSearch(criteria, nil).Wait()
if err != nil {
return nil, err
}
var uidSet imap.UIDSet
var maxUID uint32
count := uint32(0)
if all, ok := searchData.All.(imap.UIDSet); ok {
for _, set := range all {
for uid := set.Start; uid <= set.Stop; uid++ {
uidSet = append(uidSet, imap.UIDRange{Start: uid, Stop: uid})
if uint32(uid) > maxUID {
maxUID = uint32(uid)
}
count++
if count >= limit {
goto FETCH
}
if set.Stop == 0 { // Infinite range
break
}
}
}
}
FETCH:
rr := &RecvResult{List: []Mail{}, Tag: maxUID}
if len(uidSet) == 0 {
return rr, nil
}
fetchData, err := c.Fetch(uidSet, &imap.FetchOptions{Envelope: true, BodySection: []*imap.FetchItemBodySection{{}}}).Collect()
if err != nil {
return rr, err
}
for _, msg := range fetchData {
mail := Mail{
UID: uint32(msg.UID),
Subject: msg.Envelope.Subject,
To: formatAddressList(msg.Envelope.To),
Cc: formatAddressList(msg.Envelope.Cc),
Bcc: formatAddressList(msg.Envelope.Bcc),
Date: msg.Envelope.Date.Format(time.RFC3339),
Size: msg.RFC822Size,
Flags: formatFlags(msg.Flags),
}
if len(msg.Envelope.From) > 0 {
mail.From = formatAddress(&msg.Envelope.From[0])
}
for _, section := range msg.BodySection {
if len(section.Bytes) > 0 {
env, err := enmime.ReadEnvelope(bytes.NewReader(section.Bytes))
if err == nil {
mail.Text = env.Text
mail.HTML = env.HTML
mail.Headers = env.Root.Header
for _, attach := range env.Attachments {
mail.Attachments = append(mail.Attachments, Attachment{
Name: attach.FileName,
Data: attach.Content,
ContentType: attach.ContentType,
})
}
for _, embed := range env.Inlines {
mail.Embeds = append(mail.Embeds, Attachment{
Name: embed.FileName,
Data: embed.Content,
ContentType: embed.ContentType,
ContentID: embed.ContentID,
})
}
}
}
}
rr.List = append(rr.List, mail)
}
if opt != nil && opt.MarkAsRead && len(uidSet) > 0 {
_ = c.Store(uidSet, &imap.StoreFlags{
Op: imap.StoreFlagsAdd,
Flags: []imap.Flag{imap.FlagSeen},
}, nil).Close()
}
return rr, nil
}
func formatAddress(addr *imap.Address) string {
if addr.Name != "" {
return fmt.Sprintf("%s <%s>", addr.Name, addr.Addr())
}
return addr.Addr()
}
func formatAddressList(addrs []imap.Address) []string {
res := make([]string, len(addrs))
for i, addr := range addrs {
res[i] = formatAddress(&addr)
}
return res
}
func formatFlags(flags []imap.Flag) []string {
res := make([]string, len(flags))
for i, f := range flags {
res[i] = string(f)
}
return res
}

268
mail.go Normal file
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@ -0,0 +1,268 @@
package mail
import (
"context"
"fmt"
"strings"
"sync"
"time"
"apigo.cc/go/log"
)
var (
instances = make(map[string]*Mailbox)
instMu sync.RWMutex
)
// Mailbox 邮件客户端实例，实现 starter.Service 接口
type Mailbox struct {
name string
config *MailboxConfig
handlers []mailHandler
logger *log.Logger
lastUID uint32
ctx context.Context
cancel context.CancelFunc
wg sync.WaitGroup
mu sync.RWMutex
}
type mailHandler struct {
opt *RecvOption
fn func(Mail)
}
// Attachment 附件或内嵌资源信息
type Attachment struct {
Name string // 文件名
Path string // 本地路径（发送时使用）
Data []byte // 文件数据
ContentType string // 内容类型
ContentID string // 内嵌资源 ID (CID)
}
// Mail 邮件内容，支持富媒体
type Mail struct {
UID uint32
From string
To []string
Cc []string
Bcc []string
Subject string
Date string
Text string // 纯文本正文
HTML string // HTML 正文
Attachments []Attachment // 普通附件
Embeds []Attachment // 内嵌资源（如图片）
Size int64 // 邮件大小
Flags []string // 邮件标记
Headers map[string][]string // 原始请求头
}
// RecvOption 接收选项，支持复杂的过滤规则
type RecvOption struct {
Tag uint32
Mailbox string
Unseen bool
Read bool
Answered bool
Flagged bool
Deleted bool
Since string
Before string
Limit uint32
MarkAsRead bool
Subject []string
Search []string
Body []string
From []string
To []string
Cc []string
Bcc []string
Not []string
}
// RecvResult 接收结果
type RecvResult struct {
List []Mail
Tag uint32
}
// GetMailbox 获取或创建一个指定名称的邮件客户端实例
func GetMailbox(name string, configs ...*MailboxConfig) *Mailbox {
instMu.RLock()
m, ok := instances[name]
instMu.RUnlock()
if ok {
return m
}
if len(configs) == 0 {
return nil
}
m, _ = New(configs[0])
if m != nil {
m.name = name
instMu.Lock()
instances[name] = m
instMu.Unlock()
}
return m
}
// New 创建一个邮件客户端实例
func New(cfg *MailboxConfig) (*Mailbox, error) {
if cfg == nil {
return nil, fmt.Errorf("config is nil")
}
mCfg := *cfg
// 自动补全逻辑保持不变...
if mCfg.SMTPHost == "" || mCfg.IMAPHost == "" {
a := strings.SplitN(mCfg.Username, "@", 2)
if len(a) == 2 {
if mCfg.SMTPHost == "" {
mCfg.SMTPHost = "smtp." + a[1]
}
if mCfg.SMTPPort == 0 {
mCfg.SMTPPort = 465
}
if mCfg.IMAPHost == "" {
mCfg.IMAPHost = "imap." + a[1]
}
if mCfg.IMAPPort == 0 {
mCfg.IMAPPort = 993
}
}
}
if mCfg.SenderMail == "" {
mCfg.SenderMail = mCfg.Username
}
m := &Mailbox{
config: &mCfg,
logger: log.DefaultLogger,
}
for _, rule := range cfg.Rules {
r := rule
m.On(&r, nil)
}
return m, nil
}
// On 在指定实例上注册邮件到达回调
func (m *Mailbox) On(opt *RecvOption, handler func(Mail)) {
m.mu.Lock()
defer m.mu.Unlock()
m.handlers = append(m.handlers, mailHandler{opt: opt, fn: handler})
}
// Recv 接收邮件
func (m *Mailbox) Recv(opt *RecvOption) (*RecvResult, error) {
return m.recv(opt)
}
// --- starter.Service Implementation ---
func (m *Mailbox) Start(ctx context.Context, logger *log.Logger) error {
m.mu.Lock()
if m.cancel != nil {
m.mu.Unlock()
return nil
}
if logger != nil {
m.logger = logger
}
m.ctx, m.cancel = context.WithCancel(ctx)
m.mu.Unlock()
interval := m.config.PollInterval
if interval <= 0 {
interval = 1 * time.Minute
}
m.wg.Add(1)
go m.watch(interval)
m.logger.Info("Mail service started", "name", m.name, "username", m.config.Username)
return nil
}
func (m *Mailbox) Stop(ctx context.Context) error {
m.mu.Lock()
if m.cancel == nil {
m.mu.Unlock()
return nil
}
m.cancel()
m.mu.Unlock()
m.wg.Wait()
return nil
}
func (m *Mailbox) Health() error {
if m.config == nil {
return fmt.Errorf("mailbox not configured")
}
return nil
}
// --- Internal Logic ---
func (m *Mailbox) watch(interval time.Duration) {
defer m.wg.Done()
ticker := time.NewTicker(interval)
defer ticker.Stop()
for {
select {
case <-m.ctx.Done():
return
case <-ticker.C:
m.poll()
}
}
}
func (m *Mailbox) poll() {
m.mu.RLock()
handlers := make([]mailHandler, len(m.handlers))
copy(handlers, m.handlers)
m.mu.RUnlock()
if len(handlers) == 0 {
return
}
for i := range handlers {
h := &handlers[i]
opt := *h.opt
if opt.Tag == 0 {
opt.Tag = m.lastUID
}
res, err := m.Recv(&opt)
if err != nil {
m.logger.Error("Mail poll failed", "err", err, "name", m.name)
continue
}
if res.Tag > m.lastUID {
m.lastUID = res.Tag
}
if h.opt.Tag < res.Tag {
h.opt.Tag = res.Tag
}
for _, mail := range res.List {
if h.fn != nil {
h.fn(mail)
}
}
}
}

93
mail_test.go Normal file
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@ -0,0 +1,93 @@
package mail_test
import (
"context"
"fmt"
"testing"
"time"
"apigo.cc/go/cast"
"apigo.cc/go/file"
"apigo.cc/go/mail"
"apigo.cc/go/safe"
)
func TestMail(t *testing.T) {
// 1. 加载配置
var rawConf map[string]any
err := file.UnmarshalFile("env.yml", &rawConf)
if err != nil {
t.Skip("Failed to load env.yml, skipping real mail test", err)
return
}
mailMap := cast.To[map[string]any](rawConf["mail"])
mboxMap := cast.To[map[string]any](mailMap["mailbox"])
defaultMbox := cast.To[map[string]any](mboxMap["default"])
if defaultMbox == nil {
t.Skip("Default mailbox not configured in env.yml, skipping real mail test")
return
}
// 准备真实的 MailboxConfig
var mboxCfg mail.MailboxConfig
cast.Convert(&mboxCfg, defaultMbox)
// 手动处理 Password，因为 YAML 中是字符串
password := cast.String(defaultMbox["password"])
if password != "" {
mboxCfg.Password = safe.NewSafeBuf([]byte(password))
}
mboxCfg.PollInterval = 5 * time.Second
fmt.Printf("Using mailbox: %s\n", mboxCfg.Username)
// 2. 创建 Mailbox 实例
mbox, err := mail.New(&mboxCfg)
if err != nil {
t.Fatalf("Failed to create mailbox: %v", err)
}
// 3. 测试解析地址
name, address, err := mail.ParseAddr("测试工程师 <test@example.com>")
if err != nil {
t.Errorf("ParseAddr failed: %v", err)
}
if name != "测试工程师" || address != "test@example.com" {
t.Errorf("Unexpected address parsing: name=%s, address=%s", name, address)
}
// 4. 测试 Service 模式与回调
received := make(chan mail.Mail, 1)
mbox.On(&mail.RecvOption{Limit: 1}, func(m mail.Mail) {
fmt.Printf("Callback received mail: %s\n", m.Subject)
select {
case received <- m:
default:
}
})
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
err = mbox.Start(ctx, nil)
if err != nil {
t.Fatalf("Failed to start mail service: %v", err)
}
defer func() { _ = mbox.Stop(ctx) }()
select {
case m := <-received:
fmt.Printf("Successfully received mail via service: %s\n", m.Subject)
case <-time.After(20 * time.Second):
t.Log("No mail received via service in 20s (normal if no new mail)")
}
// 5. 测试手动发送 (可选)
/*
err = mbox.Send([]string{mboxCfg.Username}, "Service Test", "Hello from service mode", nil)
if err != nil {
t.Errorf("Send mail failed: %v", err)
}
*/
}

121
smtp.go Normal file
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@ -0,0 +1,121 @@
package mail
import (
"crypto/tls"
"fmt"
"io"
"apigo.cc/go/file"
"github.com/jaytaylor/html2text"
"gopkg.in/gomail.v2"
)
// SendOption 发送选项
type SendOption struct {
Cc []string
Bcc []string
HTML bool
Attachments []Attachment
Embeds []Attachment
}
// Send 发送邮件
func (m *Mailbox) Send(to []string, subject, content string, option *SendOption) error {
if m.config == nil || m.config.Username == "" {
return fmt.Errorf("mailbox not configured")
}
msg := gomail.NewMessage()
if m.config.SenderName != "" {
msg.SetHeader("From", msg.FormatAddress(m.config.Username, m.config.SenderName))
} else {
msg.SetHeader("From", m.config.Username)
}
msg.SetHeader("To", to...)
msg.SetHeader("Subject", subject)
useHTML := false
if option != nil {
if len(option.Cc) > 0 {
msg.SetHeader("Cc", option.Cc...)
}
if len(option.Bcc) > 0 {
msg.SetHeader("Bcc", option.Bcc...)
}
for _, attachment := range option.Attachments {
if attachment.Path != "" {
if file.Exists(attachment.Path) {
msg.Attach(attachment.Path)
} else {
m.logger.Error("Mail attachment file not found", "path", attachment.Path)
}
} else if len(attachment.Data) > 0 {
name := attachment.Name
if name == "" {
name = "attachment"
}
msg.Attach(name, gomail.SetCopyFunc(func(w io.Writer) error {
_, err := w.Write(attachment.Data)
return err
}))
}
}
for _, embed := range option.Embeds {
if embed.Path != "" {
if file.Exists(embed.Path) {
msg.Embed(embed.Path)
} else {
m.logger.Error("Mail embed file not found", "path", embed.Path)
}
} else if len(embed.Data) > 0 {
name := embed.Name
if name == "" {
name = "image"
}
msg.Embed(name, gomail.SetCopyFunc(func(w io.Writer) error {
_, err := w.Write(embed.Data)
return err
}))
}
}
useHTML = option.HTML
}
if useHTML {
msg.SetBody("text/html", content)
if textContent, err := html2text.FromString(content, html2text.Options{TextOnly: true, PrettyTables: true}); err == nil {
msg.AddAlternative("text/plain", textContent)
} else {
m.logger.Warning("Convert HTML to text failed", "err", err)
msg.AddAlternative("text/plain", content)
}
} else {
msg.SetBody("text/plain", content)
}
password := ""
if m.config.Password != nil {
p := m.config.Password.Open()
password = p.String()
defer p.Close()
}
dialer := gomail.NewDialer(m.config.SMTPHost, m.config.SMTPPort, m.config.Username, password)
if m.config.SMTPPort == 465 {
dialer.SSL = true
} else {
dialer.TLSConfig = &tls.Config{
ServerName: m.config.SMTPHost,
InsecureSkipVerify: false,
}
}
err := dialer.DialAndSend(msg)
if err != nil {
m.logger.Error("Send mail failed", "err", err, "to", to, "subject", subject)
} else {
m.logger.Info("Send mail success", "to", to, "subject", subject)
}
return err
}

28
utility.go Normal file
View File

@ -0,0 +1,28 @@
package mail
import (
"net/mail"
"runtime"
)
func runtimeOS() string {
return runtime.GOOS
}
// ParseAddr 解析邮件地址
func ParseAddr(addr string) (name, address string, err error) {
r, err := mail.ParseAddress(addr)
if err != nil {
return "", "", err
}
return r.Name, r.Address, nil
}
// FormatAddr 格式化邮件地址
func FormatAddr(name, address string) string {
addr := &mail.Address{
Name: name,
Address: address,
}
return addr.String()
}