Initial commit

main.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"fmt"
+	"net/smtp"
+	"os"
+	"time"
+)
+
+func main() {
+	// get cli arguments
+	args := os.Args
+	if len(args) < 2 {
+		fmt.Printf("Usage: %v <configfile>\nIf the config file doesn't exist, a incomplete configuration with default values is created.\n", args[0])
+		os.Exit(1)
+	}
+	configFilePath := os.Args[1]
+	// init
+	println("INFO\tInitializing ...")
+	config := NewDataStore(
+		configFilePath,
+		NewConfig(),
+		true,
+		0600,
+	).data.(Config)
+	persistent := NewDataStore(
+		config.PersistentDataFilePath,
+		NewPersistentData(config),
+		false,
+		0640)
+	// exit handler
+	defer println("INFO\tExiting ...")
+	// check config
+	checkConfig(config)
+	// create mail template from mail template config
+	if config.Template.SubjectTemplate == "" {
+		config.Template.SubjectTemplate = DEFAULT_SUBJECT_TEMPLATE
+	}
+	if config.Template.BodyTemplate == "" {
+		config.Template.BodyTemplate = DEFAULT_BODY_TEMPLATE
+	}
+	mailTemplate := NewTemplateFromTemplateConfig(config.Template)
+	// mail authentication from config
+	mailAuth := smtp.PlainAuth(
+		"",
+		config.SmtpConfiguration.User,
+		config.SmtpConfiguration.Password,
+		config.SmtpConfiguration.ServerHost,
+	)
+	// filter out disabled api endpoints
+	enabledApiEndpoints := []ApiEndpoint{}
+	for _, a := range apiEndpoints {
+		for _, b := range config.EnabledApiEndpoints {
+			if a.Id == b {
+				enabledApiEndpoints = append(enabledApiEndpoints, a)
+			}
+		}
+	}
+	// main loop
+	for {
+		newNotices := []WidNotice{}
+		for _, a := range enabledApiEndpoints {
+			n, t, err := a.getNotices(persistent.data.(PersistentData).LastPublished[a.Id])
+			if err != nil {
+				// retry
+				n, t, err = a.getNotices(persistent.data.(PersistentData).LastPublished[a.Id])
+			}
+			if err != nil {
+				// ok then...
+				fmt.Print("ERROR\t", err)
+			} else {
+				newNotices = append(newNotices, n...)
+				persistent.data.(PersistentData).LastPublished[a.Id] = t
+				persistent.save()
+			}
+		}
+		// fmt.Println(newNotices)
+		for _, r := range config.Recipients {
+			r.filterAndSendNotices(newNotices, mailTemplate, mailAuth, config.SmtpConfiguration)
+		}
+		time.Sleep(time.Second * time.Duration(config.ApiFetchInterval))
+	}
+}