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local-sandbox:master
local-sandbox:v0.0.1 local-sandbox:v0.0.0
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compare: local-sandbox:9b1df155ecb76bf9aae197a411e48f3cee8d4442
Branches Tags
local-sandbox:master
local-sandbox:v0.0.1 local-sandbox:v0.0.0

1 Commits
master ... 9b1df155ec

Author SHA1 Message Date
Bel LaPointe
9b1df155ec multipart 2024-10-03 07:08:43 -06:00
7 changed files with 45 additions and 150 deletions
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7
cmd/recv/go.mod
View File

@@ -1,6 +1,6 @@
module gitea.inhome.blapointe.com/contact/cmd/recv
go 1.24.0
go 1.20
replace gitea.inhome.blapointe.com/local-sandbox/contact => ../../
@@ -10,12 +10,9 @@ require (
)
require (
cloud.google.com/go/compute/metadata v0.3.0 // indirect
github.com/bytbox/go-pop3 v0.0.0-20120201222208-3046caf0763e // indirect
github.com/emersion/go-imap v1.2.0 // indirect
github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 // indirect
github.com/google/uuid v1.6.0 // indirect
golang.org/x/oauth2 v0.35.0 // indirect
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21 // indirect
golang.org/x/text v0.3.7 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
)

8
cmd/recv/go.sum
View File

@@ -1,5 +1,3 @@
cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc=
cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
gitea.inhome.blapointe.com/local/args v0.0.0-20231109145953-eb2e1c1b8d56 h1:zTGGZ77KLFagqUvDSgTOnm0qF+iSLwQWiEtGjb2jjlY=
gitea.inhome.blapointe.com/local/args v0.0.0-20231109145953-eb2e1c1b8d56/go.mod h1:SqCOE3bE3wvrztVIQGHuyxHKfDjRKU9EWhBdkmkiwyc=
github.com/bytbox/go-pop3 v0.0.0-20120201222208-3046caf0763e h1:mQTN05gz0rDZSABqKMzAPMb5ATWcvvdMljRzEh0LjBo=
@@ -9,13 +7,7 @@ github.com/emersion/go-imap v1.2.0/go.mod h1:Qlx1FSx2FTxjnjWpIlVNEuX+ylerZQNFE5N
github.com/emersion/go-message v0.15.0/go.mod h1:wQUEfE+38+7EW8p8aZ96ptg6bAb1iwdgej19uXASlE4=
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21 h1:OJyUGMJTzHTd1XQp98QTaHernxMYzRaOasRir9hUlFQ=
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
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/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
golang.org/x/oauth2 v0.35.0 h1:Mv2mzuHuZuY2+bkyWXIHMfhNdJAdwW3FuWeCPYN5GVQ=
golang.org/x/oauth2 v0.35.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=

44
cmd/recv/main.go
View File

@@ -5,6 +5,8 @@ import (
"fmt"
"io"
"io/ioutil"
"mime"
"mime/multipart"
"net/mail"
"os"
"strings"
@@ -14,6 +16,32 @@ import (
"gitea.inhome.blapointe.com/local/args"
)
type MultipartReaderReader struct {
buff []byte
r *multipart.Reader
}
func (mrr *MultipartReaderReader) Read(b []byte) (int, error) {
n := copy(b, mrr.buff)
mrr.buff = mrr.buff[n:]
for n < len(b) {
part, err := mrr.r.NextPart()
if err != nil {
return n, err
}
defer part.Close()
mrr.buff, err = io.ReadAll(part)
if err != nil {
return n, err
}
m := copy(b, mrr.buff)
mrr.buff = mrr.buff[m:]
n += m
}
return n, nil
}
func main() {
emailer := contact.NewEmailer()
as := args.NewArgSet()
@@ -24,8 +52,6 @@ func main() {
as.Append(args.STRING, "p", "password", emailer.Password)
as.Append(args.INT, "b", "dont read more than this many characters", 4096)
as.Append(args.BOOL, "json", "output as json", false)
as.Append(args.STRING, "oauth", "", emailer.OAuth)
as.Append(args.STRING, "inbox", "", emailer.Inbox)
if err := as.Parse(); err != nil {
panic(err)
}
@@ -35,8 +61,6 @@ func main() {
emailer.Limit = as.Get("n").GetInt()
emailer.From = as.GetString("u")
emailer.Password = as.GetString("p")
emailer.OAuth = as.GetString("oauth")
emailer.Inbox = as.GetString("inbox")
var msgs <-chan *mail.Message
var err error
@@ -51,7 +75,17 @@ func main() {
}
emails := make([]map[string]any, 0, emailer.Limit)
for msg := range msgs {
b, _ := ioutil.ReadAll(io.LimitReader(msg.Body, int64(as.GetInt("b"))))
var r io.Reader
if n := int64(as.GetInt("b")); n >= 0 {
r = io.LimitReader(msg.Body, n)
} else if mediaType, params, _ := mime.ParseMediaType(msg.Header.Get("Content-Type")); strings.HasPrefix(mediaType, "multipart/") {
r = &MultipartReaderReader{
r: multipart.NewReader(msg.Body, params["boundary"]),
}
} else {
r = msg.Body
}
b, _ := ioutil.ReadAll(r)
s := strings.ReplaceAll(string(b), "\r\n", "\n")
s = strings.ReplaceAll(string(s), "\n", "\n")
s = strings.ReplaceAll(string(s), "\r", "\n")

BIN
cmd/recv/recv Executable file
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Binary file not shown.

123
email.go
View File

@@ -1,30 +1,17 @@
package contact
import (
"bytes"
"context"
"crypto/sha256"
"crypto/tls"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"net/mail"
"net/smtp"
"net/url"
"os"
"strings"
"time"
"github.com/bytbox/go-pop3"
"github.com/emersion/go-imap"
"github.com/emersion/go-imap/client"
"github.com/emersion/go-sasl"
"github.com/google/uuid"
"golang.org/x/oauth2/authhandler"
"golang.org/x/oauth2/google"
)
type Emailer struct {
@@ -34,8 +21,6 @@ type Emailer struct {
IMAP string
Password string
Limit int
OAuth string
Inbox string
}
func NewEmailer() *Emailer {
@@ -49,8 +34,6 @@ func NewEmailer() *Emailer {
From: envOr("FROM", "breellocaldev@gmail.com"),
SMTP: envOr("SMTP", "smtp.gmail.com:465"),
Password: envOr("PASSWORD", "lhnjijrvqaesiufp"),
OAuth: envOr("OAUTH", ""),
Inbox: envOr("INBOX", "INBOX"),
}
}
@@ -59,116 +42,14 @@ func (e *Emailer) Read() (chan *mail.Message, error) {
}
func (e *Emailer) ReadIMAP() (chan *mail.Message, error) {
if e.OAuth != "" {
return e.oauthThenReadIMAP()
}
return e.readIMAP(e.From, e.Password)
}
func (e *Emailer) oauthThenReadIMAP() (chan *mail.Message, error) {
configJSON, err := e.configJSON()
if err != nil {
return nil, err
}
if token, _ := os.ReadFile(e.OAuth + ".token"); len(token) == 0 {
state := uuid.NewString()
verifier := uuid.NewString()
s256 := sha256.Sum256([]byte(verifier))
challenge := base64.RawURLEncoding.EncodeToString(s256[:])
pkceParams := authhandler.PKCEParams{Challenge: challenge, ChallengeMethod: "S256", Verifier: verifier}
config, err := google.ConfigFromJSON([]byte(configJSON), "https://mail.google.com/")
if err != nil {
return nil, err
}
credentialsParams := google.CredentialsParams{Scopes: config.Scopes, State: state, AuthHandler: func(authCodeURL string) (string, string, error) {
fmt.Println(authCodeURL + "&access_type=offline&prompt=consent")
var callback string
_, err := fmt.Scan(&callback)
u, _ := url.Parse(callback)
fmt.Println()
return u.Query().Get("code"), state, err
}, PKCE: &pkceParams}
credentials, err := google.CredentialsFromJSONWithParams(context.Background(), []byte(configJSON), credentialsParams)
if err != nil {
return nil, err
}
token, err := credentials.TokenSource.Token()
if err != nil {
return nil, err
}
tokenFileJSON, _ := json.Marshal(token)
os.WriteFile(e.OAuth+".token", tokenFileJSON, os.ModePerm)
log.Printf("%s", tokenFileJSON)
}
var tokenStruct struct {
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
Expiry time.Time `json:"expiry"`
ExpiresIn int `json:"expires_in"`
}
token, _ := os.ReadFile(e.OAuth + ".token")
json.Unmarshal(token, &tokenStruct)
if time.Until(tokenStruct.Expiry) < time.Minute*5 {
var appStruct struct {
Installed struct {
ClientID string `json:"client_id"`
ClientSecret string `json:"client_secret"`
GrantType string `json:"grant_type"`
RefreshToken string `json:"refresh_token"`
} `json:"installed"`
}
json.Unmarshal([]byte(configJSON), &appStruct)
appStruct.Installed.GrantType = "refresh_token"
appStruct.Installed.RefreshToken = tokenStruct.RefreshToken
b, _ := json.Marshal(appStruct.Installed)
resp, err := http.Post(`https://oauth2.googleapis.com/token`, `application/json`, bytes.NewReader(b))
if err != nil {
return nil, err
}
defer resp.Body.Close()
b, _ = io.ReadAll(resp.Body)
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("(%d) %s", resp.StatusCode, b)
}
tokenStruct.Expiry = time.Time{}
json.Unmarshal(b, &tokenStruct)
tokenStruct.Expiry = time.Now().Add(time.Duration(tokenStruct.ExpiresIn) * time.Second)
tokenStruct.RefreshToken = appStruct.Installed.RefreshToken
b, _ = json.Marshal(tokenStruct)
os.WriteFile(e.OAuth+".token", b, os.ModePerm)
}
log.Println("OAUTH", e.From, time.Until(tokenStruct.Expiry), tokenStruct.AccessToken)
return e.readIMAP(e.From, tokenStruct.AccessToken)
}
func (e *Emailer) configJSON() (string, error) {
b, err := os.ReadFile(e.OAuth)
return string(b), err
}
func (e *Emailer) readIMAP(authU, authP string) (chan *mail.Message, error) {
c, err := client.DialTLS(e.IMAP, nil)
if err != nil {
return nil, err
}
if e.OAuth == "" {
if err := c.Login(authU, authP); err != nil {
if err := c.Login(e.From, e.Password); err != nil {
return nil, err
}
} else {
if err := c.Authenticate(sasl.NewOAuthBearerClient(&sasl.OAuthBearerOptions{
Username: authU,
Token: authP,
Host: "",
Port: 0,
})); err != nil {
return nil, err
}
}
mbox, err := c.Select(e.Inbox, true) //readonly
mbox, err := c.Select("INBOX", true) //readonly
if err != nil {
return nil, err
}

5
go.mod
View File

@@ -1,16 +1,13 @@
module gitea.inhome.blapointe.com/local-sandbox/contact
go 1.24.0
go 1.17
require (
github.com/bytbox/go-pop3 v0.0.0-20120201222208-3046caf0763e
github.com/emersion/go-imap v1.2.0
github.com/google/uuid v1.6.0
golang.org/x/oauth2 v0.35.0
)
require (
cloud.google.com/go/compute/metadata v0.3.0 // indirect
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21 // indirect
golang.org/x/text v0.3.7 // indirect
)

6
go.sum
View File

@@ -1,5 +1,3 @@
cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc=
cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
github.com/bytbox/go-pop3 v0.0.0-20120201222208-3046caf0763e h1:mQTN05gz0rDZSABqKMzAPMb5ATWcvvdMljRzEh0LjBo=
github.com/bytbox/go-pop3 v0.0.0-20120201222208-3046caf0763e/go.mod h1:alXX+s7a4cKaIprgjeEboqi4Tm7XR/HXEwUTxUV/ywU=
github.com/emersion/go-imap v1.2.0 h1:lyUQ3+EVM21/qbWE/4Ya5UG9r5+usDxlg4yfp3TgHFA=
@@ -8,10 +6,6 @@ github.com/emersion/go-message v0.15.0/go.mod h1:wQUEfE+38+7EW8p8aZ96ptg6bAb1iwd
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21 h1:OJyUGMJTzHTd1XQp98QTaHernxMYzRaOasRir9hUlFQ=
github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
golang.org/x/oauth2 v0.35.0 h1:Mv2mzuHuZuY2+bkyWXIHMfhNdJAdwW3FuWeCPYN5GVQ=
golang.org/x/oauth2 v0.35.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=