├── .dockerignore ├── .github └── workflows │ └── docker.yml ├── .gitignore ├── Dockerfile ├── LICENSE ├── README.md ├── collector.go ├── config.go ├── go.mod ├── go.sum ├── imap.go └── main.go /.dockerignore: -------------------------------------------------------------------------------- 1 | .git 2 | .github 3 | .vscode 4 | Dockerfile 5 | -------------------------------------------------------------------------------- /.github/workflows/docker.yml: -------------------------------------------------------------------------------- 1 | --- 2 | name: "Publish Docker image" 3 | 4 | on: 5 | schedule: 6 | - cron: "0 0 * * 0" 7 | push: 8 | branches: 9 | - master 10 | 11 | jobs: 12 | build-and-push: 13 | runs-on: ubuntu-latest 14 | steps: 15 | - uses: actions/checkout@v1 16 | - uses: mback2k/action-docker-package@master 17 | with: 18 | registry_password: ${{ secrets.GITHUB_TOKEN }} 19 | ... 20 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .vscode 2 | go-getmail 3 | *.yaml 4 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM golang:alpine as build 2 | RUN apk --no-cache --update upgrade && apk --no-cache add git build-base 3 | 4 | ADD . /go/go-getmail 5 | WORKDIR /go/go-getmail 6 | 7 | RUN go get 8 | RUN go build -ldflags="-s -w" 9 | RUN chmod +x go-getmail 10 | 11 | FROM ghcr.io/mback2k/docker-alpine:latest 12 | RUN apk --no-cache --update upgrade && apk --no-cache add ca-certificates 13 | 14 | COPY --from=build /go/go-getmail/go-getmail /usr/local/bin/go-getmail 15 | 16 | RUN addgroup -g 993 -S serve 17 | RUN adduser -u 993 -h /data -S -D -G serve serve 18 | 19 | WORKDIR /data 20 | USER serve 21 | 22 | CMD [ "/usr/local/bin/go-getmail" ] 23 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | go-getmail 2 | ========== 3 | This Go program is a simple tool to retrieve and forward e-mails between IMAP servers. 4 | 5 | [![Build Status](https://travis-ci.org/mback2k/go-getmail.svg?branch=master)](https://travis-ci.org/mback2k/go-getmail) 6 | [![GoDoc](https://godoc.org/github.com/mback2k/go-getmail?status.svg)](https://godoc.org/github.com/mback2k/go-getmail) 7 | [![Go Report Card](https://goreportcard.com/badge/github.com/mback2k/go-getmail)](https://goreportcard.com/report/github.com/mback2k/go-getmail) 8 | 9 | Dependencies 10 | ------------ 11 | Special thanks to [@emersion](https://github.com/emersion) for creating and providing 12 | the following Go libraries that are the main building blocks of this program: 13 | 14 | - https://github.com/emersion/go-imap 15 | - https://github.com/emersion/go-imap-idle 16 | 17 | Additional dependencies are the following awesome Go libraries: 18 | 19 | - https://github.com/spf13/viper 20 | 21 | Installation 22 | ------------ 23 | You basically have two options to install this Go program package: 24 | 25 | 1. If you have Go installed and configured on your PATH, just do the following go get inside your GOPATH to get the latest version: 26 | 27 | ``` 28 | go get -u github.com/mback2k/go-getmail 29 | ``` 30 | 31 | 2. If you do not have Go installed and just want to use a released binary, 32 | then you can just go ahead and download a pre-compiled Linux amd64 binary from the [Github releases](https://github.com/mback2k/go-getmail/releases). 33 | 34 | Finally put the go-getmail binary onto your PATH and make sure it is executable. 35 | 36 | Configuration 37 | ------------- 38 | The following YAML file is an example configuration with one transfer to be handled: 39 | 40 | ``` 41 | Accounts: 42 | 43 | - Name: Test account 44 | Source: 45 | IMAP: 46 | Server: imap-source.example.com:993 47 | Username: your-imap-source-username 48 | Password: your-imap-source-username 49 | Mailbox: your-imap-source-mailbox 50 | Target: 51 | IMAP: 52 | Server: imap-target.example.com:993 53 | Username: your-imap-target-username 54 | Password: your-imap-target-username 55 | Mailbox: your-imap-target-mailbox 56 | ``` 57 | 58 | You can have multiple accounts handled by repeating the `- Name: ...` section. 59 | 60 | Save this file in one of the following locations and run `./go-getmail`: 61 | 62 | - /etc/go-getmail/go-getmail.yaml 63 | - $HOME/.go-getmail.yaml 64 | - $PWD/go-getmail.yaml 65 | 66 | License 67 | ------- 68 | Copyright (C) 2019 Marc Hoersken 69 | 70 | This software is licensed as described in the file LICENSE, which 71 | you should have received as part of this software distribution. 72 | 73 | All trademarks are the property of their respective owners. 74 | -------------------------------------------------------------------------------- /collector.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "github.com/prometheus/client_golang/prometheus" 5 | ) 6 | 7 | var ( 8 | labels = []string{"name"} 9 | accountState = prometheus.NewDesc("mail_account_state", "State of mail accounts.", labels, nil) 10 | accountMessagesTotal = prometheus.NewDesc("mail_account_messages_total", "Number of processed messages.", labels, nil) 11 | ) 12 | 13 | // Collector implements a prometheus.Collector. 14 | type Collector struct { 15 | config *config 16 | } 17 | 18 | func NewCollector(config *config) *Collector { 19 | cc := &Collector{config: config} 20 | return cc 21 | } 22 | 23 | func (cc *Collector) Describe(ch chan<- *prometheus.Desc) { 24 | prometheus.DescribeByCollect(cc, ch) 25 | } 26 | 27 | func (cc *Collector) Collect(ch chan<- prometheus.Metric) { 28 | for _, c := range cc.config.Accounts { 29 | ch <- prometheus.MustNewConstMetric( 30 | accountState, 31 | prometheus.GaugeValue, 32 | float64(c.state), 33 | c.Name, 34 | ) 35 | ch <- prometheus.MustNewConstMetric( 36 | accountMessagesTotal, 37 | prometheus.CounterValue, 38 | float64(c.total), 39 | c.Name, 40 | ) 41 | } 42 | } 43 | -------------------------------------------------------------------------------- /config.go: -------------------------------------------------------------------------------- 1 | /* 2 | go-getmail - Retrieve and forward e-mails between IMAP servers. 3 | Copyright (C) 2019 Marc Hoersken 4 | 5 | This program is free software: you can redistribute it and/or modify 6 | it under the terms of the GNU General Public License as published by 7 | the Free Software Foundation, either version 3 of the License, or 8 | (at your option) any later version. 9 | 10 | This program is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | GNU General Public License for more details. 14 | 15 | You should have received a copy of the GNU General Public License 16 | along with this program. If not, see . 17 | */ 18 | 19 | package main 20 | 21 | import ( 22 | "os" 23 | 24 | "github.com/spf13/viper" 25 | ) 26 | 27 | type configLogging struct { 28 | Level string 29 | } 30 | 31 | type configMetrics struct { 32 | ListenAddress string 33 | } 34 | 35 | type configRollbar struct { 36 | AccessToken string 37 | Environment string 38 | } 39 | 40 | type configBroker struct { 41 | URL string 42 | ClientID string 43 | Username string 44 | Password string 45 | } 46 | 47 | type config struct { 48 | Accounts []*fetchConfig 49 | 50 | Logging *configLogging 51 | Metrics *configMetrics 52 | Rollbar *configRollbar 53 | 54 | Broker *configBroker 55 | } 56 | 57 | func loadConfig() (*config, error) { 58 | vpr := viper.GetViper() 59 | vpr.SetConfigName("go-getmail") 60 | vpr.AddConfigPath("/etc/go-getmail/") 61 | vpr.AddConfigPath("$HOME/.go-getmail") 62 | vpr.AddConfigPath(".") 63 | if len(os.Args) > 1 { 64 | vpr.SetConfigFile(os.Args[1]) 65 | } 66 | 67 | err := vpr.ReadInConfig() 68 | if err != nil { 69 | return nil, err 70 | } 71 | 72 | var cfg config 73 | err = vpr.UnmarshalExact(&cfg) 74 | if err != nil { 75 | return nil, err 76 | } 77 | return &cfg, nil 78 | } 79 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/mback2k/go-getmail 2 | 3 | go 1.24.2 4 | 5 | require ( 6 | github.com/emersion/go-imap v1.2.1 7 | github.com/emersion/go-imap-idle v0.0.0-20210907174914-db2568431445 8 | github.com/heroku/rollrus v0.2.0 9 | github.com/prometheus/client_golang v1.22.0 10 | github.com/rollbar/rollbar-go v1.4.6 11 | github.com/rollbar/rollbar-go/errors v1.0.0 12 | github.com/sirupsen/logrus v1.9.3 13 | github.com/spf13/viper v1.20.1 14 | golang.org/x/sync v0.13.0 15 | ) 16 | 17 | require ( 18 | github.com/beorn7/perks v1.0.1 // indirect 19 | github.com/cespare/xxhash/v2 v2.3.0 // indirect 20 | github.com/eclipse/paho.mqtt.golang v1.5.0 21 | github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 // indirect 22 | github.com/fsnotify/fsnotify v1.9.0 // indirect 23 | github.com/go-viper/mapstructure/v2 v2.2.1 // indirect 24 | github.com/gorilla/websocket v1.5.3 // indirect 25 | github.com/mback2k/go-modernauth v0.0.0-20250427194617-a67caac85515 26 | github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect 27 | github.com/pelletier/go-toml/v2 v2.2.4 // indirect 28 | github.com/pkg/errors v0.9.1 // indirect 29 | github.com/prometheus/client_model v0.6.2 // indirect 30 | github.com/prometheus/common v0.63.0 // indirect 31 | github.com/prometheus/procfs v0.16.1 // indirect 32 | github.com/rogpeppe/go-internal v1.14.1 // indirect 33 | github.com/sagikazarmark/locafero v0.9.0 // indirect 34 | github.com/sourcegraph/conc v0.3.0 // indirect 35 | github.com/spf13/afero v1.14.0 // indirect 36 | github.com/spf13/cast v1.7.1 // indirect 37 | github.com/spf13/pflag v1.0.6 // indirect 38 | github.com/subosito/gotenv v1.6.0 // indirect 39 | go.uber.org/multierr v1.11.0 // indirect 40 | golang.org/x/net v0.39.0 // indirect 41 | golang.org/x/oauth2 v0.29.0 42 | golang.org/x/sys v0.32.0 // indirect 43 | golang.org/x/text v0.24.0 // indirect 44 | google.golang.org/protobuf v1.36.6 // indirect 45 | gopkg.in/yaml.v3 v3.0.1 // indirect 46 | ) 47 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM= 2 | github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= 3 | github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs= 4 | github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= 5 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 6 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 7 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/eclipse/paho.mqtt.golang v1.5.0 h1:EH+bUVJNgttidWFkLLVKaQPGmkTUfQQqjOsyvMGvD6o= 9 | github.com/eclipse/paho.mqtt.golang v1.5.0/go.mod h1:du/2qNQVqJf/Sqs4MEL77kR8QTqANF7XU7Fk0aOTAgk= 10 | github.com/emersion/go-imap v1.0.6/go.mod h1:yKASt+C3ZiDAiCSssxg9caIckWF/JG7ZQTO7GAmvicU= 11 | github.com/emersion/go-imap v1.2.1 h1:+s9ZjMEjOB8NzZMVTM3cCenz2JrQIGGo5j1df19WjTA= 12 | github.com/emersion/go-imap v1.2.1/go.mod h1:Qlx1FSx2FTxjnjWpIlVNEuX+ylerZQNFE5NsmKFSejY= 13 | github.com/emersion/go-imap-idle v0.0.0-20210907174914-db2568431445 h1:dAGbaaU4LLupO7dnYZaELOoI3RoVDNi5DCGejLe8a7c= 14 | github.com/emersion/go-imap-idle v0.0.0-20210907174914-db2568431445/go.mod h1:N/6S3dRTVt8xT867m+476C16+v/Fq4WZYvh2Chg0nmg= 15 | github.com/emersion/go-message v0.11.1/go.mod h1:C4jnca5HOTo4bGN9YdqNQM9sITuT3Y0K6bSUw9RklvY= 16 | github.com/emersion/go-message v0.15.0 h1:urgKGqt2JAc9NFJcgncQcohHdiYb803YTH9OQwHBHIY= 17 | github.com/emersion/go-message v0.15.0/go.mod h1:wQUEfE+38+7EW8p8aZ96ptg6bAb1iwdgej19uXASlE4= 18 | github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k= 19 | github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ= 20 | github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 h1:oP4q0fw+fOSWn3DfFi4EXdT+B+gTtzx8GC9xsc26Znk= 21 | github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ= 22 | github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U= 23 | github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594 h1:IbFBtwoTQyw0fIM5xv1HF+Y+3ZijDR839WMulgxCcUY= 24 | github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U= 25 | github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8= 26 | github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0= 27 | github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k= 28 | github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0= 29 | github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss= 30 | github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM= 31 | github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= 32 | github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= 33 | github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg= 34 | github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= 35 | github.com/heroku/rollrus v0.2.0 h1:b3AgcXJKFJNUwbQOC2S69/+mxuTpe4laznem9VJdPEo= 36 | github.com/heroku/rollrus v0.2.0/go.mod h1:B3MwEcr9nmf4xj0Sr5l9eSht7wLKMa1C+9ajgAU79ek= 37 | github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo= 38 | github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ= 39 | github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= 40 | github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= 41 | github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE= 42 | github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk= 43 | github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= 44 | github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= 45 | github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc= 46 | github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw= 47 | github.com/martinlindhe/base36 v1.0.0/go.mod h1:+AtEs8xrBpCeYgSLoY/aJ6Wf37jtBuR0s35750M27+8= 48 | github.com/mback2k/go-modernauth v0.0.0-20250427194617-a67caac85515 h1:eYaOWZKfDROP3/HYWhy/PHV3kSHVqiA0eA3vdBOH3iA= 49 | github.com/mback2k/go-modernauth v0.0.0-20250427194617-a67caac85515/go.mod h1:f23QJggmg6aeopWGYj2gQp8eo/YgbqCEoUKOQ/rdM6Y= 50 | github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA= 51 | github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ= 52 | github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4= 53 | github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY= 54 | github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= 55 | github.com/pkg/errors v0.8.2-0.20190227000051-27936f6d90f9/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= 56 | github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= 57 | github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= 58 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 59 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 60 | github.com/prometheus/client_golang v1.22.0 h1:rb93p9lokFEsctTys46VnV1kLCDpVZ0a/Y92Vm0Zc6Q= 61 | github.com/prometheus/client_golang v1.22.0/go.mod h1:R7ljNsLXhuQXYZYtw6GAE9AZg8Y7vEW5scdCXrWRXC0= 62 | github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk= 63 | github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE= 64 | github.com/prometheus/common v0.63.0 h1:YR/EIY1o3mEFP/kZCD7iDMnLPlGyuU2Gb3HIcXnA98k= 65 | github.com/prometheus/common v0.63.0/go.mod h1:VVFF/fBIoToEnWRVkYoXEkq3R3paCoxG9PXP74SnV18= 66 | github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzMyRg= 67 | github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is= 68 | github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ= 69 | github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc= 70 | github.com/rollbar/rollbar-go v1.0.2/go.mod h1:AcFs5f0I+c71bpHlXNNDbOWJiKwjFDtISeXco0L5PKQ= 71 | github.com/rollbar/rollbar-go v1.4.6 h1:uINGQ12U/KKIFpr6b7TC0G6Z10RplKAWO1CZOKsa/78= 72 | github.com/rollbar/rollbar-go v1.4.6/go.mod h1:I/jSI5yHNj7Uy8oxntmCeBSZ1ILvypqRKlFQvZTINgA= 73 | github.com/rollbar/rollbar-go/errors v1.0.0 h1:8wgJym3dOpKeP85ZhQm2WfBwcAfUyXyYVYz2odY04G0= 74 | github.com/rollbar/rollbar-go/errors v1.0.0/go.mod h1:Ie0xEc1Cyj+T4XMO8s0Vf7pMfvSAAy1sb4AYc8aJsao= 75 | github.com/sagikazarmark/locafero v0.9.0 h1:GbgQGNtTrEmddYDSAH9QLRyfAHY12md+8YFTqyMTC9k= 76 | github.com/sagikazarmark/locafero v0.9.0/go.mod h1:UBUyz37V+EdMS3hDF3QWIiVr/2dPrx49OMO0Bn0hJqk= 77 | github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE= 78 | github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= 79 | github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= 80 | github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo= 81 | github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0= 82 | github.com/spf13/afero v1.14.0 h1:9tH6MapGnn/j0eb0yIXiLjERO8RB6xIVZRDCX7PtqWA= 83 | github.com/spf13/afero v1.14.0/go.mod h1:acJQ8t0ohCGuMN3O+Pv0V0hgMxNYDlvdk+VTfyZmbYo= 84 | github.com/spf13/cast v1.7.1 h1:cuNEagBQEHWN1FnbGEjCXL2szYEXqfJPbP2HNUaca9Y= 85 | github.com/spf13/cast v1.7.1/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo= 86 | github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o= 87 | github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= 88 | github.com/spf13/viper v1.20.1 h1:ZMi+z/lvLyPSCoNtFCpqjy0S4kPbirhpTMwl8BkW9X4= 89 | github.com/spf13/viper v1.20.1/go.mod h1:P9Mdzt1zoHIG8m2eZQinpiBjo6kCmZSKBClNNqjJvu4= 90 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 91 | github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 92 | github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= 93 | github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= 94 | github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 95 | github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA= 96 | github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= 97 | github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8= 98 | github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU= 99 | go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0= 100 | go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y= 101 | golang.org/x/net v0.39.0 h1:ZCu7HMWDxpXpaiKdhzIfaltL9Lp31x/3fCP11bc6/fY= 102 | golang.org/x/net v0.39.0/go.mod h1:X7NRbYVEA+ewNkCNyJ513WmMdQ3BineSwVtN2zD/d+E= 103 | golang.org/x/oauth2 v0.29.0 h1:WdYw2tdTK1S8olAzWHdgeqfy+Mtm9XNhv/xJsY65d98= 104 | golang.org/x/oauth2 v0.29.0/go.mod h1:onh5ek6nERTohokkhCD/y2cV4Do3fxFHFuAejCkRWT8= 105 | golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610= 106 | golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA= 107 | golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 108 | golang.org/x/sys v0.0.0-20190804053845-51ab0e2deafa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 109 | golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 110 | golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20= 111 | golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k= 112 | golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= 113 | golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 114 | golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= 115 | golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0= 116 | golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU= 117 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 118 | google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY= 119 | google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY= 120 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 121 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= 122 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= 123 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 124 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= 125 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 126 | -------------------------------------------------------------------------------- /imap.go: -------------------------------------------------------------------------------- 1 | /* 2 | go-getmail - Retrieve and forward e-mails between IMAP servers. 3 | Copyright (C) 2019 Marc Hoersken 4 | 5 | This program is free software: you can redistribute it and/or modify 6 | it under the terms of the GNU General Public License as published by 7 | the Free Software Foundation, either version 3 of the License, or 8 | (at your option) any later version. 9 | 10 | This program is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | GNU General Public License for more details. 14 | 15 | You should have received a copy of the GNU General Public License 16 | along with this program. If not, see . 17 | */ 18 | 19 | package main 20 | 21 | import ( 22 | "context" 23 | "sync" 24 | "time" 25 | 26 | "golang.org/x/oauth2" 27 | "golang.org/x/sync/errgroup" 28 | 29 | imap "github.com/emersion/go-imap" 30 | idle "github.com/emersion/go-imap-idle" 31 | client "github.com/emersion/go-imap/client" 32 | 33 | mqtt "github.com/eclipse/paho.mqtt.golang" 34 | log "github.com/sirupsen/logrus" 35 | 36 | "github.com/mback2k/go-modernauth" 37 | "github.com/mback2k/go-modernauth/hassmqtt" 38 | ) 39 | 40 | // FetchServer contains the IMAP credentials. 41 | type FetchServer struct { 42 | Server string 43 | Username string 44 | Password string 45 | Provider string 46 | Mailbox string 47 | 48 | config *fetchConfig 49 | imapconn *client.Client 50 | tokensrc oauth2.TokenSource 51 | } 52 | 53 | type fetchSource struct { 54 | FetchServer `mapstructure:"IMAP"` 55 | 56 | idleconn *client.Client 57 | idle *idle.Client 58 | updates chan client.Update 59 | } 60 | 61 | type fetchTarget struct { 62 | FetchServer `mapstructure:"IMAP"` 63 | } 64 | 65 | type fetchState int 66 | 67 | const ( 68 | initialState = (fetchState)(0 << 0) 69 | connectingState = (fetchState)(1 << 0) 70 | connectedState = (fetchState)(1 << 1) 71 | watchingState = (fetchState)(1 << 2) 72 | handlingState = (fetchState)(1 << 3) 73 | shutdownState = (fetchState)(1 << 4) 74 | ) 75 | 76 | type fetchConfig struct { 77 | Name string 78 | Source fetchSource 79 | Target fetchTarget 80 | 81 | state fetchState 82 | total uint64 83 | ctx context.Context 84 | 85 | mqttopts *mqtt.ClientOptions 86 | mqttlock *sync.Mutex 87 | } 88 | 89 | func (s *FetchServer) open() (*client.Client, error) { 90 | if s.Provider != "" { 91 | if s.tokensrc == nil { 92 | backend := hassmqtt.NewHassMqttAuthBackend(s.config.ctx, s.Username, s.config.mqttopts, s.config.mqttlock) 93 | s.tokensrc = modernauth.NewDeviceAuthTokenSource(s.config.ctx, s.Provider, backend) 94 | } 95 | tok, err := s.tokensrc.Token() 96 | if err != nil { 97 | return nil, err 98 | } 99 | s.Password = tok.AccessToken 100 | } 101 | con, err := client.DialTLS(s.Server, nil) 102 | if err != nil { 103 | return nil, err 104 | } 105 | if s.Provider != "" { 106 | err = con.Authenticate(modernauth.NewXoauth2Client(s.Username, s.Password)) 107 | } else { 108 | err = con.Login(s.Username, s.Password) 109 | } 110 | if err != nil { 111 | return nil, err 112 | } 113 | return con, nil 114 | } 115 | 116 | func (s *FetchServer) openIMAP() error { 117 | con, err := s.open() 118 | if err != nil { 119 | return err 120 | } 121 | s.imapconn = con 122 | return nil 123 | } 124 | 125 | func (s *fetchSource) openIDLE() error { 126 | con, err := s.open() 127 | if err != nil { 128 | return err 129 | } 130 | s.idleconn = con 131 | return nil 132 | } 133 | 134 | func (s *FetchServer) selectIMAP() (*client.MailboxUpdate, error) { 135 | status, err := s.imapconn.Select(s.Mailbox, false) 136 | update := &client.MailboxUpdate{Mailbox: status} 137 | return update, err 138 | } 139 | 140 | func (s *fetchSource) selectIDLE() (*client.MailboxUpdate, error) { 141 | status, err := s.idleconn.Select(s.Mailbox, true) 142 | update := &client.MailboxUpdate{Mailbox: status} 143 | return update, err 144 | } 145 | 146 | func (s *fetchSource) initIDLE() error { 147 | update, err := s.selectIDLE() 148 | if err != nil { 149 | return err 150 | } 151 | updates := make(chan client.Update, 1) 152 | updates <- update 153 | 154 | s.idle = idle.NewClient(s.idleconn) 155 | s.idleconn.Updates = updates 156 | s.updates = updates 157 | return nil 158 | } 159 | 160 | func (c *fetchConfig) init() error { 161 | c.Source.config = c 162 | c.Target.config = c 163 | c.state = connectingState 164 | err := c.Source.openIMAP() 165 | if err != nil { 166 | return err 167 | } 168 | err = c.Source.closeIMAP() 169 | if err != nil { 170 | return err 171 | } 172 | err = c.Target.openIMAP() 173 | if err != nil { 174 | return err 175 | } 176 | err = c.Target.closeIMAP() 177 | if err != nil { 178 | return err 179 | } 180 | err = c.Source.openIDLE() 181 | if err != nil { 182 | return err 183 | } 184 | err = c.Source.initIDLE() 185 | if err != nil { 186 | return err 187 | } 188 | c.state = connectedState 189 | return err 190 | } 191 | 192 | func (s *FetchServer) closeIMAP() error { 193 | if s.imapconn == nil { 194 | return nil 195 | } 196 | err := s.imapconn.Logout() 197 | if err != nil { 198 | return err 199 | } 200 | s.imapconn = nil 201 | return nil 202 | } 203 | 204 | func (s *fetchSource) closeIDLE() error { 205 | if s.idleconn == nil { 206 | return nil 207 | } 208 | err := s.idleconn.Logout() 209 | if err != nil { 210 | return err 211 | } 212 | s.idleconn = nil 213 | return nil 214 | } 215 | 216 | func (c *fetchConfig) close() error { 217 | c.state = shutdownState 218 | err := c.Source.closeIDLE() 219 | if err != nil { 220 | return err 221 | } 222 | err = c.Source.closeIMAP() 223 | if err != nil { 224 | return err 225 | } 226 | err = c.Target.closeIMAP() 227 | if err != nil { 228 | return err 229 | } 230 | c.state = initialState 231 | return nil 232 | } 233 | 234 | func (c *fetchConfig) watch() error { 235 | defer func(c *fetchConfig, s fetchState) { 236 | c.state = s 237 | }(c, c.state) 238 | c.state = watchingState 239 | 240 | c.log().Info("Begin idling") 241 | 242 | ctx, cancel := context.WithCancel(c.ctx) 243 | defer cancel() 244 | 245 | errors := make(chan error, 1) 246 | go func() { 247 | errors <- c.Source.idle.IdleWithFallback(ctx.Done(), 0) 248 | }() 249 | for { 250 | select { 251 | case update := <-c.Source.updates: 252 | c.log().Infof("New update: %#v", update) 253 | _, ok := update.(*client.MailboxUpdate) 254 | if ok { 255 | err := c.handle() 256 | if err != nil { 257 | return err 258 | } 259 | } 260 | case err := <-errors: 261 | c.log().Warnf("Not idling anymore: %v", err) 262 | return err 263 | } 264 | } 265 | } 266 | 267 | func (c *fetchConfig) handle() error { 268 | defer func(c *fetchConfig, s fetchState) { 269 | c.state = s 270 | }(c, c.state) 271 | c.state = handlingState 272 | 273 | c.log().Info("Begin handling") 274 | 275 | err := c.Source.openIMAP() 276 | if err != nil { 277 | c.log().Warnf("Source connection failed: %v", err) 278 | return err 279 | } 280 | defer c.Source.closeIMAP() 281 | 282 | err = c.Target.openIMAP() 283 | if err != nil { 284 | c.log().Warnf("Target connection failed: %v", err) 285 | return err 286 | } 287 | defer c.Target.closeIMAP() 288 | 289 | messages := make(chan *imap.Message, 100) 290 | deletes := make(chan uint32, 100) 291 | 292 | var g errgroup.Group 293 | g.Go(func() error { 294 | return c.Source.fetchMessages(messages) 295 | }) 296 | g.Go(func() error { 297 | return c.Target.storeMessages(messages, deletes) 298 | }) 299 | g.Go(func() error { 300 | return c.Source.cleanMessages(deletes) 301 | }) 302 | 303 | err = g.Wait() 304 | if err != nil { 305 | c.log().Warnf("Message handling failed: %v", err) 306 | return err 307 | } 308 | 309 | err = c.Source.imapconn.Expunge(nil) 310 | if err != nil { 311 | c.log().Warnf("Message expunge failed: %v", err) 312 | return err 313 | } 314 | 315 | c.log().Info("Message handling finished") 316 | return nil 317 | } 318 | 319 | func (s *fetchSource) fetchMessages(messages chan *imap.Message) error { 320 | update, err := s.selectIMAP() 321 | if err != nil { 322 | close(messages) 323 | return err 324 | } 325 | 326 | if update.Mailbox.Messages < 1 { 327 | close(messages) 328 | return nil 329 | } 330 | 331 | seqset := new(imap.SeqSet) 332 | seqset.AddRange(1, update.Mailbox.Messages) 333 | 334 | return s.imapconn.Fetch(seqset, []imap.FetchItem{ 335 | "UID", "FLAGS", "INTERNALDATE", "BODY[]"}, messages) 336 | } 337 | 338 | func (t *fetchTarget) storeMessages(messages <-chan *imap.Message, deletes chan<- uint32) error { 339 | defer close(deletes) 340 | 341 | section, err := imap.ParseBodySectionName("BODY[]") 342 | if err != nil { 343 | return err 344 | } 345 | 346 | update, err := t.selectIMAP() 347 | if err != nil { 348 | return err 349 | } 350 | 351 | for msg := range messages { 352 | t.config.log().Infof("Handling message: %d", msg.Uid) 353 | 354 | deleted := false 355 | flags := []string{} 356 | for _, flag := range msg.Flags { 357 | switch flag { 358 | case imap.DeletedFlag: 359 | deleted = true 360 | case imap.RecentFlag: 361 | continue 362 | case imap.SeenFlag: 363 | continue 364 | default: 365 | flags = append(flags, flag) 366 | } 367 | } 368 | if deleted { 369 | t.config.log().Infof("Ignoring message: %d", msg.Uid) 370 | continue 371 | } 372 | 373 | t.config.log().Infof("Storing message: %d", msg.Uid) 374 | 375 | now := time.Now() 376 | body := msg.GetBody(section) 377 | err := t.imapconn.Append(update.Mailbox.Name, flags, now, body) 378 | if err != nil { 379 | return err 380 | } 381 | 382 | t.config.total++ 383 | deletes <- msg.Uid 384 | } 385 | 386 | return nil 387 | } 388 | 389 | func (s *fetchSource) cleanMessages(deletes <-chan uint32) error { 390 | seqset := new(imap.SeqSet) 391 | for uid := range deletes { 392 | s.config.log().Infof("Deleting message: %d", uid) 393 | 394 | seqset.AddNum(uid) 395 | } 396 | 397 | if seqset.Empty() { 398 | return nil 399 | } 400 | 401 | return s.imapconn.UidStore(seqset, imap.AddFlags, 402 | []interface{}{imap.DeletedFlag}, nil) 403 | } 404 | 405 | func (c *fetchConfig) run() error { 406 | err := c.init() 407 | if err != nil { 408 | c.log().Error(err) 409 | return err 410 | } 411 | defer c.close() 412 | err = c.watch() 413 | if err != nil { 414 | c.log().Error(err) 415 | return err 416 | } 417 | return nil 418 | } 419 | 420 | func (c *fetchConfig) log() *log.Entry { 421 | return log.WithFields(log.Fields{ 422 | "name": c.Name, 423 | "state": c.state, 424 | }) 425 | } 426 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | /* 2 | go-getmail - Retrieve and forward e-mails between IMAP servers. 3 | Copyright (C) 2019 Marc Hoersken 4 | 5 | This program is free software: you can redistribute it and/or modify 6 | it under the terms of the GNU General Public License as published by 7 | the Free Software Foundation, either version 3 of the License, or 8 | (at your option) any later version. 9 | 10 | This program is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | GNU General Public License for more details. 14 | 15 | You should have received a copy of the GNU General Public License 16 | along with this program. If not, see . 17 | */ 18 | 19 | package main 20 | 21 | import ( 22 | "context" 23 | "net/http" 24 | "runtime" 25 | "sync" 26 | 27 | "golang.org/x/sync/errgroup" 28 | 29 | "github.com/heroku/rollrus" 30 | "github.com/prometheus/client_golang/prometheus" 31 | "github.com/prometheus/client_golang/prometheus/promhttp" 32 | "github.com/rollbar/rollbar-go" 33 | "github.com/rollbar/rollbar-go/errors" 34 | 35 | mqtt "github.com/eclipse/paho.mqtt.golang" 36 | log "github.com/sirupsen/logrus" 37 | ) 38 | 39 | func main() { 40 | cfg, err := loadConfig() 41 | if err != nil { 42 | log.Fatal(err) 43 | } 44 | 45 | if cfg.Logging != nil && cfg.Logging.Level != "" { 46 | l, err := log.ParseLevel(cfg.Logging.Level) 47 | if err != nil { 48 | log.Fatal(err) 49 | } 50 | log.SetLevel(l) 51 | } 52 | 53 | if cfg.Rollbar != nil && cfg.Rollbar.AccessToken != "" { 54 | rollbar.SetStackTracer(errors.StackTracer) 55 | rollrus.SetupLogging(cfg.Rollbar.AccessToken, cfg.Rollbar.Environment) 56 | defer rollrus.ReportPanic(cfg.Rollbar.AccessToken, cfg.Rollbar.Environment) 57 | log.Warn("Errors will be reported to rollbar.com!") 58 | } 59 | 60 | if cfg.Metrics != nil && cfg.Metrics.ListenAddress != "" { 61 | cc := NewCollector(cfg) 62 | prometheus.MustRegister(cc) 63 | http.Handle("/metrics", promhttp.Handler()) 64 | go http.ListenAndServe(cfg.Metrics.ListenAddress, nil) 65 | } 66 | 67 | mqttlock := &sync.Mutex{} 68 | mqttopts := mqtt.NewClientOptions() 69 | if cfg.Broker != nil { 70 | if cfg.Broker.ClientID == "" { 71 | cfg.Broker.ClientID = "go-getmail" 72 | } 73 | mqttopts.AddBroker(cfg.Broker.URL) 74 | mqttopts.SetClientID(cfg.Broker.ClientID) 75 | mqttopts.SetUsername(cfg.Broker.Username) 76 | mqttopts.SetPassword(cfg.Broker.Password) 77 | } 78 | 79 | runtime.GC() 80 | 81 | ctx, cancel := context.WithCancel(context.Background()) 82 | defer cancel() 83 | 84 | g, ctx := errgroup.WithContext(ctx) 85 | for _, c := range cfg.Accounts { 86 | c.ctx = ctx 87 | c.mqttopts = mqttopts 88 | c.mqttlock = mqttlock 89 | c.log().Infof("%s --> %s", c.Source.Server, c.Target.Server) 90 | g.Go(c.run) 91 | } 92 | 93 | err = g.Wait() 94 | if err != nil { 95 | log.Fatal(err) 96 | } 97 | } 98 | --------------------------------------------------------------------------------