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notifier: start to implemtn sms-modem and email backends
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,14 @@ | ||
| store: | ||
| path: ./contrib/test.db | ||
| notifier: | ||
| backends: | ||
| - name: mail-foo | ||
| email: | ||
| from: [email protected] | ||
| smarthost: mailrelay.example.com | ||
| - name: sms-bar | ||
| smsModem: | ||
| device: /dev/ttyUSB0 | ||
| baudrate: 115200 | ||
| timeout: 10s | ||
| pin: 1234 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| // | ||
| // Copyright (c) 2023 whawty contributors (see AUTHORS file) | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are met: | ||
| // | ||
| // - Redistributions of source code must retain the above copyright notice, this | ||
| // list of conditions and the following disclaimer. | ||
| // | ||
| // - Redistributions in binary form must reproduce the above copyright notice, | ||
| // this list of conditions and the following disclaimer in the documentation | ||
| // and/or other materials provided with the distribution. | ||
| // | ||
| // - Neither the name of whawty.alerts nor the names of its | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
|
|
||
| package notifier | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
|
|
||
| "github.com/whawty/alerts/store" | ||
| ) | ||
|
|
||
| type EMailBackend struct { | ||
| infoLog *log.Logger | ||
| dbgLog *log.Logger | ||
| name string | ||
| conf *NotifierBackendConfigEMail | ||
| // TODO: add client config | ||
| } | ||
|
|
||
| func NewEMailBackend(name string, conf *NotifierBackendConfigEMail, infoLog, dbgLog *log.Logger) *EMailBackend { | ||
| return &EMailBackend{name: name, conf: conf, infoLog: infoLog, dbgLog: dbgLog} | ||
| } | ||
|
|
||
| func (emb *EMailBackend) Init() (err error) { | ||
| return fmt.Errorf("not yet implemented!") | ||
| } | ||
|
|
||
| func (smb *EMailBackend) Ready() bool { | ||
| // TODO: implement this | ||
| return false | ||
| } | ||
|
|
||
| func (emb *EMailBackend) Notify(ctx context.Context, target NotifierTarget, alert *store.Alert) error { | ||
| return fmt.Errorf("not yet implemented!") | ||
| } | ||
|
|
||
| func (emb *EMailBackend) Close() error { | ||
| // TODO: close client? | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // | ||
| // Copyright (c) 2023 whawty contributors (see AUTHORS file) | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are met: | ||
| // | ||
| // - Redistributions of source code must retain the above copyright notice, this | ||
| // list of conditions and the following disclaimer. | ||
| // | ||
| // - Redistributions in binary form must reproduce the above copyright notice, | ||
| // this list of conditions and the following disclaimer in the documentation | ||
| // and/or other materials provided with the distribution. | ||
| // | ||
| // - Neither the name of whawty.alerts nor the names of its | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
|
|
||
| package notifier | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "time" | ||
|
|
||
| "github.com/warthog618/modem/at" | ||
| "github.com/warthog618/modem/gsm" | ||
| "github.com/warthog618/modem/serial" | ||
| "github.com/whawty/alerts/store" | ||
| ) | ||
|
|
||
| type SMSModemBackend struct { | ||
| infoLog *log.Logger | ||
| dbgLog *log.Logger | ||
| name string | ||
| conf *NotifierBackendConfigSMSModem | ||
| modem io.ReadWriteCloser | ||
| sms *gsm.GSM | ||
| } | ||
|
|
||
| func NewSMSModemBackend(name string, conf *NotifierBackendConfigSMSModem, infoLog, dbgLog *log.Logger) *SMSModemBackend { | ||
| if conf.Timeout <= 0 { | ||
| conf.Timeout = 5 * time.Second | ||
| } | ||
| return &SMSModemBackend{name: name, conf: conf, infoLog: infoLog, dbgLog: dbgLog} | ||
| } | ||
|
|
||
| func (smb *SMSModemBackend) Init() (err error) { | ||
| smb.modem, err = serial.New(serial.WithPort(smb.conf.Device), serial.WithBaud(smb.conf.Baudrate)) | ||
| if err != nil { | ||
| smb.modem = nil | ||
| return | ||
| } | ||
|
|
||
| a := at.New(smb.modem, at.WithTimeout(smb.conf.Timeout)) | ||
| if smb.conf.Pin != nil { | ||
| var resp []string | ||
| resp, err = a.Command(fmt.Sprintf("+CPIN=%d", smb.conf.Pin)) | ||
| if err != nil { | ||
| smb.modem.Close() | ||
| smb.modem = nil | ||
| return | ||
| } | ||
| smb.dbgLog.Printf("SMSModem(%s): enter pin code respone: %v", smb.name, resp) | ||
| } | ||
|
|
||
| smb.sms = gsm.New(a) | ||
| err = smb.sms.Init() | ||
| if err != nil { | ||
| smb.modem.Close() | ||
| smb.modem = nil | ||
| smb.sms = nil | ||
| return | ||
| } | ||
|
|
||
| err = smb.sms.StartMessageRx( | ||
| func(msg gsm.Message) { | ||
| smb.infoLog.Printf("SMSModem(%s): got SMS from '%s': %s", smb.name, msg.Number, msg.Message) | ||
| }, | ||
| func(err error) { | ||
| smb.infoLog.Printf("SMSModem(%s): got SMS rx error: %v", smb.name, err) | ||
| }) | ||
|
|
||
| if err != nil { | ||
| smb.modem.Close() | ||
| smb.modem = nil | ||
| smb.sms = nil | ||
| return | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (smb *SMSModemBackend) Ready() bool { | ||
| return smb.modem != nil && smb.sms != nil | ||
| } | ||
|
|
||
| func (smb *SMSModemBackend) Notify(ctx context.Context, target NotifierTarget, alert *store.Alert) error { | ||
| // TODO: improve alert formatting | ||
| message := fmt.Sprintf("%s / %s / %s", alert.State, alert.Severity, alert.Name) | ||
|
|
||
| resp, err := smb.sms.SendLongMessage(target.SMS.Number, message) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| smb.dbgLog.Printf("SMSModem(%s): send sms response: %v", smb.name, resp) | ||
| return nil | ||
| } | ||
|
|
||
| func (smb *SMSModemBackend) Close() error { | ||
| smb.sms.StopMessageRx() | ||
| smb.modem.Close() | ||
| smb.modem = nil | ||
| smb.sms = nil | ||
| return nil | ||
| } |
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