commit 038206ccda85abb049b9a1ae545814e852e49586 Author: Unbewohnte Date: Sun Jul 23 11:11:32 2023 +0300 Initial commit; open-sourced diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..d4db5a4 --- /dev/null +++ b/.gitignore @@ -0,0 +1,7 @@ +massmail +mail_list.txt +conf.json +massmail_release/ +massmail_release.zip +message.txt +message.html \ No newline at end of file diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..2beb9e1 --- /dev/null +++ b/COPYING @@ -0,0 +1,662 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. + diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..e8d0699 --- /dev/null +++ b/Makefile @@ -0,0 +1,63 @@ +all: + cd src/ && go build && mv massmail .. + +clean: + rm -rf massmail massmail_release + +release: + mkdir -p massmail_release + + mkdir -p massmail_release/win_x32 && \ + cp README.md massmail_release/win_x32 && \ + cp message.html massmail_release/win_x32 && \ + cp mail_list.txt massmail_release/win_x32 && \ + cd src && \ + CGO_ENABLED=0 GOARCH=386 GOOS=windows go build && \ + mv massmail.exe ../massmail_release/win_x32 && \ + cd ../massmail_release && \ + zip -r win_x32.zip win_x32 && \ + rm -rf win_x32 + + mkdir -p massmail_release/win_x64 && \ + cp README.md massmail_release/win_x64 && \ + cp message.html massmail_release/win_x64 && \ + cp mail_list.txt massmail_release/win_x64 && \ + cd src && \ + CGO_ENABLED=0 GOARCH=amd64 GOOS=windows go build && \ + mv massmail.exe ../massmail_release/win_x64 && \ + cd ../massmail_release && \ + zip -r win_x64.zip win_x64 && \ + rm -rf win_x64 + + mkdir -p massmail_release/linux_x64 && \ + cp README.md massmail_release/linux_x64 && \ + cp message.html massmail_release/linux_x64 && \ + cp mail_list.txt massmail_release/linux_x64 && \ + cd src && \ + CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build && \ + mv massmail ../massmail_release/linux_x64 && \ + cd ../massmail_release && \ + zip -r linux_x64.zip linux_x64 && \ + rm -rf linux_x64 + + mkdir -p massmail_release/darwin_x64 && \ + cp README.md massmail_release/darwin_x64 && \ + cp message.html massmail_release/darwin_x64 && \ + cp mail_list.txt massmail_release/darwin_x64 && \ + cd src && \ + CGO_ENABLED=0 GOARCH=amd64 GOOS=darwin go build && \ + mv massmail ../massmail_release/darwin_x64 && \ + cd ../massmail_release && \ + zip -r darwin_x64.zip darwin_x64 && \ + rm -rf darwin_x64 + + mkdir -p massmail_release/source && \ + cp -r src/* massmail_release/source \ + && cp Makefile massmail_release/source \ + && cp README.md massmail_release/source \ + && cp message.html massmail_release/source \ + && cp message.txt massmail_release/source \ + && cp mail_list.txt massmail_release/source + + + diff --git a/README.md b/README.md new file mode 100644 index 0000000..d239374 --- /dev/null +++ b/README.md @@ -0,0 +1,42 @@ +# massmail +## Send a separate e-mail to a list of known addresses + +## Usage +The first run of the program will create a configuration file in the working directory. Fill in every field with the exception of optional file attachments. You'll need either a plaintext or html-encoded file which contains text to be sent as e-mail's body and a mail list file in which there's an e-mail address sitting on its own line. + +If all the information is correct - you're all set to launch the binary again. It'll apply information written to the configuration file, look for specified files and start sending e-mails. + +## GMail step-by-step +GMail address:password pair does not work out of the box; some toggles in the settings are required. + +1. Enter your GMail box +2. Access settings +3. Proceed to "Forwarding and POP/IMAP" tab +4. Enable IMAP +5. Open Google Account/Security +6. Open 2-Step Verification tab +7. Scroll down and select "App passwords" +8. Generate a new app password +9. Use it **instead** of the account password + +I have no responsibility for **your** actions + +----- + +## Использование +Первый запуск программы создаст конфигурационный файл в рабочей директории. Заполните каждое поле, с оговоркой в поле вложенных файлов, которое является необязательным. Дополнительно вам потребуется либо обычный текстовый, либо html файлик с текстом сообщения, которое будет отправлено; файл со списком адресов, по одному на каждой строчке. + +## Шаги для использования с GMail +Просто Адрес:пароль не пройдёт, нужно чутка потыкать в настройках. + +1. Зайдите в почтовый ящик +2. Пройдите в настройки +3. Выберите "Forwarding and POP/IMAP" +4. Включите IMAP +5. Затем откройте настройки самого аккаунта гугла, вкладка "Account/Security" +6. Откройте меню двухфакторной аутентификации +7. Пролистайте вниз и выберите "App passwords" +8. Создайте новый пароль для приложения +9. Используйте его **вместо** пароля аккаунта в конфигурационном файле + +Я не отвечаю за **ваши** действия \ No newline at end of file diff --git a/src/config/config.go b/src/config/config.go new file mode 100644 index 0000000..e17e04f --- /dev/null +++ b/src/config/config.go @@ -0,0 +1,116 @@ +/* +massmailer - send an e-mail to a list of addresses +Copyright (C) 2023 Kasyanov Nikolay Alexeyevich (Unbewohnte) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU Affero General Public License as +published by the Free Software Foundation, either version 3 of the +License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Affero General Public License for more details. + +You should have received a copy of the GNU Affero General Public License +along with this program. If not, see . + +*/ + +package config + +import ( + "encoding/json" + "io" + "os" +) + +type Conf struct { + From string `json:"from"` + Host string `json:"host"` + HostSMTPPort uint `json:"host_SMTP_port"` + FromHostPassword string `json:"from_host_password"` + ToDBPath string `json:"to_db_path"` + MessageFilePath string `json:"message_file_path"` + MessageSubject string `json:"message_subject"` + MessageAttachmentPaths []string `json:"message_attachment_paths"` + MessageSendDelayMS uint `json:"message_send_delay_miliseconds"` +} + +// Default configuration file structure +func Default() *Conf { + return &Conf{ + From: "me@example.com", + Host: "smtp.example.com", + HostSMTPPort: 587, + FromHostPassword: "me@example.com_password", + ToDBPath: "mail_list.txt", + MessageFilePath: "message.html", + MessageSubject: "Message subject", + MessageAttachmentPaths: []string{""}, + MessageSendDelayMS: 50, + } +} + +// Write current configuration to w +func (c *Conf) WriteTo(w io.Writer) error { + jsonData, err := json.MarshalIndent(c, " ", "\t") + if err != nil { + return err + } + + _, err = w.Write(jsonData) + if err != nil { + return err + } + + return nil +} + +// Read configuration from r +func (c *Conf) ReadFrom(r io.Reader) error { + jsonData, err := io.ReadAll(r) + if err != nil { + return nil + } + + err = json.Unmarshal(jsonData, c) + if err != nil { + return err + } + + return nil +} + +// Creates configuration file at path +func CreateConfigFile(conf Conf, path string) error { + confFile, err := os.Create(path) + if err != nil { + return err + } + defer confFile.Close() + + err = conf.WriteTo(confFile) + if err != nil { + return err + } + + return nil +} + +// Tries to open configuration file at path. If it fails - returns default configuration +func OpenConfigFile(path string) (*Conf, error) { + confFile, err := os.Open(path) + if err != nil { + return Default(), err + } + defer confFile.Close() + + var conf Conf + err = conf.ReadFrom(confFile) + if err != nil { + return Default(), err + } + + return &conf, nil +} diff --git a/src/go.mod b/src/go.mod new file mode 100644 index 0000000..b0ab911 --- /dev/null +++ b/src/go.mod @@ -0,0 +1,8 @@ +module Unbewohnte/massmail + +go 1.18 + +require ( + gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect + gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df // indirect +) diff --git a/src/go.sum b/src/go.sum new file mode 100644 index 0000000..b530e33 --- /dev/null +++ b/src/go.sum @@ -0,0 +1,4 @@ +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/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= diff --git a/src/logger/logger.go b/src/logger/logger.go new file mode 100644 index 0000000..0c815e5 --- /dev/null +++ b/src/logger/logger.go @@ -0,0 +1,71 @@ +/* +massmailer - send an e-mail to a list of addresses +Copyright (C) 2023 Kasyanov Nikolay Alexeyevich (Unbewohnte) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU Affero General Public License as +published by the Free Software Foundation, either version 3 of the +License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Affero General Public License for more details. + +You should have received a copy of the GNU Affero General Public License +along with this program. If not, see . +*/ + +package logger + +import ( + "io" + "log" + "os" +) + +// 3 basic loggers in global space +var ( + // neutral information logger + infoLog *log.Logger + // warning-level information logger + warningLog *log.Logger + // error-level information logger + errorLog *log.Logger +) + +func init() { + infoLog = log.New(os.Stdout, "[INFO] ", log.Ltime) + warningLog = log.New(os.Stdout, "[WARNING] ", log.Ltime) + errorLog = log.New(os.Stdout, "[ERROR] ", log.Ltime) +} + +// Set up loggers to write to the given writer +func SetOutput(writer io.Writer) { + if writer == nil { + writer = io.Discard + } + infoLog.SetOutput(writer) + warningLog.SetOutput(writer) + errorLog.SetOutput(writer) +} + +// Get current logger's output writer +func GetOutput() io.Writer { + return infoLog.Writer() +} + +// Log information +func Info(format string, a ...interface{}) { + infoLog.Printf(format, a...) +} + +// Log warning +func Warning(format string, a ...interface{}) { + warningLog.Printf(format, a...) +} + +// Log error +func Error(format string, a ...interface{}) { + errorLog.Printf(format, a...) +} diff --git a/src/main.go b/src/main.go new file mode 100644 index 0000000..e3d0478 --- /dev/null +++ b/src/main.go @@ -0,0 +1,223 @@ +/* +massmailer - send an e-mail to a list of addresses +Copyright (C) 2023 Kasyanov Nikolay Alexeyevich (Unbewohnte) + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU Affero General Public License as +published by the Free Software Foundation, either version 3 of the +License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Affero General Public License for more details. + +You should have received a copy of the GNU Affero General Public License +along with this program. If not, see . +*/ + +package main + +import ( + "Unbewohnte/massmail/config" + "Unbewohnte/massmail/logger" + "bufio" + "flag" + "fmt" + "io" + "mime" + "os" + "path/filepath" + "strings" + "sync" + "time" + + "gopkg.in/gomail.v2" +) + +const version = "v0.1.2" + +const ( + configFilename string = "conf.json" +) + +var ( + printVersion = flag.Bool( + "version", false, + "Print version and exit", + ) + + wDir = flag.String( + "wdir", "", + "Force set working directory", + ) + + configFile = flag.String( + "conf", configFilename, + "Configuration file name to create|look for", + ) + + workingDirectory string + configFilePath string +) + +func init() { + // set log output + logger.SetOutput(os.Stdout) + + // parse and process flags + flag.Parse() + + if *printVersion { + fmt.Printf( + "massmailer %s\n(c) 2023 Kasyanov Nikolay Alexeyevich (Unbewohnte)\n", + version, + ) + os.Exit(0) + } + + // print logo + logger.GetOutput().Write([]byte( + `███╗ ███╗ █████╗ ███████╗███████╗███╗ ███╗ █████╗ ██╗██╗ +████╗ ████║██╔══██╗██╔════╝██╔════╝████╗ ████║██╔══██╗██║██║ +██╔████╔██║███████║███████╗███████╗██╔████╔██║███████║██║██║ +██║╚██╔╝██║██╔══██║╚════██║╚════██║██║╚██╔╝██║██╔══██║██║██║ +██║ ╚═╝ ██║██║ ██║███████║███████║██║ ╚═╝ ██║██║ ██║██║███████╗ +╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝╚═╝╚══════╝ `, + )) + logger.GetOutput().Write([]byte(version + " by Unbewohnte\n\n")) + + // work out working directory path + if *wDir != "" { + workingDirectory = *wDir + } else { + wdir, err := os.Getwd() + if err != nil { + logger.Error("Failed to determine working directory path: %s", err) + return + } + workingDirectory = wdir + } + + logger.Info("Working in \"%s\"", workingDirectory) + + // global path to configuration file + configFilePath = filepath.Join(workingDirectory, *configFile) +} + +func main() { + // open config + logger.Info("Trying to open config \"%s\"", configFilePath) + + var conf *config.Conf + conf, err := config.OpenConfigFile(configFilePath) + if err != nil { + logger.Error( + "Failed to open configuration file: %s. Creating a new one with the same name instead...", + err, + ) + + err = config.CreateConfigFile(*config.Default(), configFilePath) + if err != nil { + logger.Error("Could not create new configuration file: %s", err) + return + } + logger.Info("Created new configuration file. Exiting...") + return + } + logger.Info("Successfully opened configuration file") + + // Sanitize inputs + if len(conf.From) == 0 { + logger.Error("Configuration's from is not specified!") + } + + if len(conf.Host) == 0 { + logger.Error("Configuration's host is not specified!") + } + + if len(conf.FromHostPassword) == 0 { + logger.Error("Configuration's from_host_password is not specified!") + } + + if len(conf.ToDBPath) == 0 { + logger.Error("Configuration's to_db_path is not specified!") + } + + if len(conf.MessageFilePath) == 0 { + logger.Error("Configuration's message_file_path is not specified!") + } + + // Retrieve email message + messageFile, err := os.Open(conf.MessageFilePath) + if err != nil { + logger.Error("Failed to open a message file: %s", err) + return + } + defer messageFile.Close() + + isHtml := strings.HasSuffix(conf.MessageFilePath, ".html") + + messageBytes, err := io.ReadAll(messageFile) + if err != nil { + logger.Error("Failed to read message contents: %s", err) + return + } + + // Work out email addresses file + addressesFile, err := os.Open(conf.ToDBPath) + if err != nil { + logger.Error("Failed to open addresses file: %s", err) + return + } + defer addressesFile.Close() + + // Authenticate! + mailDialer := gomail.NewDialer(conf.Host, int(conf.HostSMTPPort), conf.From, conf.FromHostPassword) + + // Send message to every address + logger.Info("Starting to send...") + wg := &sync.WaitGroup{} + scanner := bufio.NewScanner(addressesFile) + for scanner.Scan() { + to := scanner.Text() + if len(to) == 0 { + continue + } + + wg.Add(1) + go func(wg *sync.WaitGroup) { + defer wg.Done() + + msg := gomail.NewMessage() + msg.SetHeader("From", conf.From) + msg.SetHeader("To", to) + msg.SetHeader("Subject", conf.MessageSubject) + for _, attachmentPath := range conf.MessageAttachmentPaths { + // Check if exists + stats, err := os.Stat(attachmentPath) + if err != nil || stats.IsDir() { + logger.Warning("%s does not exist or it is a directory. Skipping it...", attachmentPath) + continue + } + msg.Attach(attachmentPath) + } + if isHtml { + msg.SetBody(mime.TypeByExtension(".html"), string(messageBytes)) + } else { + msg.SetBody(mime.TypeByExtension(".txt"), string(messageBytes)) + } + err = mailDialer.DialAndSend(msg) + if err != nil { + logger.Info("Failed --> %s: %s", to, err) + } else { + logger.Info("Sent --> %s", to) + } + }(wg) + + time.Sleep(time.Millisecond * time.Duration(conf.MessageSendDelayMS)) + } + + wg.Wait() + logger.Info("Completed") +}