mirror of
https://github.com/1f349/simplemail.git
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Initial commit
This commit is contained in:
commit
bd57c983cf
GPG Key ID:
6C9D970C50D26A25
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
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.idea/
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26
fromaddress.go
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26
fromaddress.go
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@ -0,0 +1,26 @@
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package simplemail
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import (
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"encoding/json"
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"net/mail"
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)
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type FromAddress struct {
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*mail.Address
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}
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var _ json.Unmarshaler = &FromAddress{}
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func (f *FromAddress) UnmarshalJSON(b []byte) error {
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var a string
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err := json.Unmarshal(b, &a)
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if err != nil {
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return err
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}
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address, err := mail.ParseAddress(a)
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if err != nil {
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return err
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}
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f.Address = address
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return nil
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}
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12
go.mod
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12
go.mod
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module github.com/1f349/simplemail
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go 1.22
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require (
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github.com/1f349/overlapfs v0.0.1
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github.com/emersion/go-message v0.18.0
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github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43
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github.com/emersion/go-smtp v0.20.2
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)
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require github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594 // indirect
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50
go.sum
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50
go.sum
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@ -0,0 +1,50 @@
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github.com/1f349/overlapfs v0.0.1 h1:LAxBolrXFAgU0yqZtXg/C/aaPq3eoQSPpBc49BHuTp0=
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github.com/1f349/overlapfs v0.0.1/go.mod h1:I6aItQycr7nrzplmfNXp/QF9tTmKRSgY3fXmu/7Ky2o=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/emersion/go-message v0.18.0 h1:7LxAXHRpSeoO/Wom3ZApVZYG7c3d17yCScYce8WiXA8=
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github.com/emersion/go-message v0.18.0/go.mod h1:Zi69ACvzaoV/MBnrxfVBPV3xWEuCmC2nEN39oJF4B8A=
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github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
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github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43 h1:hH4PQfOndHDlpzYfLAAfl63E8Le6F2+EL/cdhlkyRJY=
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github.com/emersion/go-sasl v0.0.0-20231106173351-e73c9f7bad43/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
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github.com/emersion/go-smtp v0.20.2 h1:peX42Qnh5Q0q3vrAnRy43R/JwTnnv75AebxbkTL7Ia4=
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github.com/emersion/go-smtp v0.20.2/go.mod h1:qm27SGYgoIPRot6ubfQ/GpiPy/g3PaZAVRxiO/sDUgQ=
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github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594 h1:IbFBtwoTQyw0fIM5xv1HF+Y+3ZijDR839WMulgxCcUY=
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github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
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github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
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github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
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golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
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golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
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golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
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golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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96
mail.go
Normal file
96
mail.go
Normal file
@ -0,0 +1,96 @@
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package simplemail
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import (
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"bytes"
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"github.com/emersion/go-message/mail"
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"github.com/emersion/go-sasl"
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"github.com/emersion/go-smtp"
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"io"
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"net"
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"time"
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)
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type Mail struct {
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Name string `json:"name"`
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Tls bool `json:"tls"`
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Server string `json:"server"`
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From FromAddress `json:"from"`
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Username string `json:"username"`
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Password string `json:"password"`
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}
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func (m *Mail) loginInfo() sasl.Client {
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return sasl.NewPlainClient("", m.Username, m.Password)
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}
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func (m *Mail) mailCall(to []string, r io.Reader) error {
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host, _, err := net.SplitHostPort(m.Server)
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if err != nil {
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return err
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}
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if m.Tls {
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return smtp.SendMailTLS(m.Server, m.loginInfo(), m.From.String(), to, r)
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}
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if host == "localhost" || host == "127.0.0.1" {
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// internals of smtp.SendMail without STARTTLS for localhost testing
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dial, err := smtp.Dial(m.Server)
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if err != nil {
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return err
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}
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err = dial.Auth(m.loginInfo())
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if err != nil {
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return err
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}
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return dial.SendMail(m.From.String(), to, r)
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}
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return smtp.SendMail(m.Server, m.loginInfo(), m.From.String(), to, r)
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}
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func (m *Mail) SendMail(subject string, to []*mail.Address, htmlBody, textBody io.Reader) error {
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// generate the email in this template
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buf := new(bytes.Buffer)
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// setup mail headers
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var h mail.Header
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h.SetDate(time.Now())
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h.SetSubject(subject)
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h.SetAddressList("From", []*mail.Address{m.From.Address})
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h.SetAddressList("To", to)
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h.Set("Content-Type", "multipart/alternative")
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// setup html and text alternative headers
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var hHtml, hTxt mail.InlineHeader
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hHtml.Set("Content-Type", "text/html; charset=utf-8")
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hTxt.Set("Content-Type", "text/plain; charset=utf-8")
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createWriter, err := mail.CreateWriter(buf, h)
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if err != nil {
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return err
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}
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inline, err := createWriter.CreateInline()
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if err != nil {
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return err
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}
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partHtml, err := inline.CreatePart(hHtml)
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if err != nil {
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return err
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}
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if _, err := io.Copy(partHtml, htmlBody); err != nil {
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return err
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}
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partTxt, err := inline.CreatePart(hTxt)
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if err != nil {
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return err
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}
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if _, err := io.Copy(partTxt, textBody); err != nil {
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return err
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}
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// convert all to addresses to strings
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toStr := make([]string, len(to))
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for i := range toStr {
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toStr[i] = to[i].String()
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}
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return m.mailCall(toStr, buf)
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}
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60
simplemail.go
Normal file
60
simplemail.go
Normal file
@ -0,0 +1,60 @@
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package simplemail
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import (
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"bytes"
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"errors"
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"github.com/1f349/overlapfs"
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"github.com/emersion/go-message/mail"
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htmlTemplate "html/template"
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"io"
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"io/fs"
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"log"
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"os"
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"path/filepath"
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textTemplate "text/template"
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)
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type SimpleMail struct {
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mailSender *Mail
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htmlTemplates *htmlTemplate.Template
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textTemplates *textTemplate.Template
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}
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func New(sender *Mail, wd string, normal fs.FS) (simpleMail *SimpleMail, err error) {
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m := &SimpleMail{mailSender: sender}
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if wd != "" {
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mailDir := filepath.Join(wd, "mail-templates")
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err = os.Mkdir(mailDir, os.ModePerm)
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if err != nil && !errors.Is(err, os.ErrExist) {
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return
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}
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wdFs := os.DirFS(mailDir)
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normal = overlapfs.OverlapFS{A: normal, B: wdFs}
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}
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m.htmlTemplates, err = htmlTemplate.New("mail").ParseFS(normal, "*.go.html")
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if err != nil {
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return
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}
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m.textTemplates, err = textTemplate.New("mail").ParseFS(normal, "*.go.txt")
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if err != nil {
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return
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}
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return m, nil
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}
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func (m *SimpleMail) render(wrHtml, wrTxt io.Writer, name string, data any) {
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err := m.htmlTemplates.ExecuteTemplate(wrHtml, name+".go.html", data)
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if err != nil {
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log.Printf("Failed to render mail html: %s: %s\n", name, err)
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}
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err = m.textTemplates.ExecuteTemplate(wrTxt, name+".go.txt", data)
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if err != nil {
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log.Printf("Failed to render mail text: %s: %s\n", name, err)
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}
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}
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func (m *SimpleMail) Send(templateName, subject string, to *mail.Address, data map[string]any) error {
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var bufHtml, bufTxt bytes.Buffer
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m.render(&bufHtml, &bufTxt, templateName, data)
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return m.mailSender.SendMail(subject, []*mail.Address{to}, &bufHtml, &bufTxt)
|
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}
|
||||
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