init

.gitignore

@@ -0,0 +1,2 @@
+/expiration-check
+/test.sh

.woodpecker/build.yml

@@ -0,0 +1,32 @@
+when:
+  - event: [pull_request, tag]
+  - event: push
+    branch:
+      - ${CI_REPO_DEFAULT_BRANCH}
+      - feature/*
+      - release/*
+      - renovate/*
+
+variables:
+  - &golang_image 'golang:1.22'
+
+steps:
+  "Add vendor":
+    image: *golang_image
+    commands:
+      - go mod vendor
+
+  "Run build":
+    image: *golang_image
+    commands:
+      - go build
+
+  "Publish":
+    image: plugins/gitea-release
+    settings:
+      api_key:
+        from_secret: gitnet_api_key
+      base_url: https://gitnet.fr
+      files: ./expiration-check
+    when:
+      event: [tag]

Makefile

@@ -0,0 +1,2 @@
+build:
+	go build

README.md

@@ -0,0 +1,26 @@
+Expiration checker
+==================
+
+Checks the expiration dates of domains et certificates.
+
+## Usage
+
+Go to [releases](https://gitnet.fr/deblan/expiration-check/releases) and download the latest version.
+
+```text
+$ expiration-check domains -d example.com -d other-example.com
++-------------------+------+---------------------+
+| DOMAIN            | DAYS | DATE                |
++-------------------+------+---------------------+
+| example.com       | XX   | YYYY-MM-DD HH:MM:SS |
+| other-example.com | XXX  | YYYY-MM-DD HH:MM:SS |
++-------------------+------+---------------------+
+
+$ expiration-check certificates -d example.com -d other-example.com -d mail.example.com:993
++-------------------+------+---------------------+
+| DOMAIN            | DAYS | DATE                |
++-------------------+------+---------------------+
+| example.com       | XX   | YYYY-MM-DD HH:MM:SS |
+| other-example.com | XXX  | YYYY-MM-DD HH:MM:SS |
++-------------------+------+---------------------+
+```

app.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"github.com/urfave/cli/v2"
+	"gitnet.fr/deblan/expiration-check/checker"
+	"gitnet.fr/deblan/expiration-check/render"
+)
+
+func App() *cli.App {
+	flags := []cli.Flag{
+		&cli.StringSliceFlag{
+			Name:     "domain",
+			Aliases:  []string{"d"},
+			Required: true,
+		},
+	}
+
+	return &cli.App{
+		Commands: []*cli.Command{
+			{
+				Name:    "certificate",
+				Aliases: []string{"c", "cert", "certs", "certificates"},
+				Usage:   "Checks certificate",
+				Flags:   flags,
+				Action: func(c *cli.Context) error {
+					render.Render(checker.CheckCertificates(c.StringSlice("domain")), 30, 14)
+
+					return nil
+				},
+			},
+			{
+				Name:    "domain",
+				Usage:   "Checks domain expirations",
+				Aliases: []string{"d", "domains"},
+				Flags:   flags,
+				Action: func(c *cli.Context) error {
+					render.Render(checker.CheckDomains(c.StringSlice("domain")), 30, 14)
+
+					return nil
+				},
+			},
+		},
+	}
+}

checker/certificates.go

@@ -0,0 +1,46 @@
+package checker
+
+import (
+	"crypto/tls"
+	"fmt"
+	"math"
+	"strings"
+	"time"
+)
+
+func FormatDomain(domain string) string {
+	elements := strings.Split(domain, ":")
+
+	if len(elements) == 1 {
+		return fmt.Sprintf("%s:443", elements[0])
+	}
+
+	return domain
+}
+
+func CheckCertificate(domain string) Domain {
+	now := time.Now()
+	conn, err := tls.Dial("tcp", FormatDomain(domain), nil)
+
+	if err == nil {
+		date := conn.ConnectionState().PeerCertificates[0].NotAfter
+		daysLeft := date.Sub(now).Hours() / 24
+
+		return Domain{
+			Name:     domain,
+			DaysLeft: math.Floor(daysLeft),
+			Date:     date.Format(time.DateTime),
+		}
+	}
+	return Domain{Name: domain, Failed: true}
+}
+
+func CheckCertificates(domains []string) []Domain {
+	values := []Domain{}
+
+	for _, domain := range domains {
+		values = append(values, CheckCertificate(domain))
+	}
+
+	return values
+}

checker/domains.go

@@ -0,0 +1,91 @@
+package checker
+
+import (
+	"encoding/json"
+	"fmt"
+	"math"
+	"net/http"
+	"strings"
+	"time"
+)
+
+type RdapResponseData struct {
+	Events []struct {
+		EventAction string `json:"eventAction"`
+		EventDate   string `json:"eventDate"`
+	} `json:"events"`
+}
+
+type RdapServices struct {
+	Services [][][]string `json:"services"`
+}
+
+func GetRdapServices() map[string]string {
+	response, _ := http.Get("https://data.iana.org/rdap/dns.json")
+	values := make(map[string]string)
+
+	defer response.Body.Close()
+	var data RdapServices
+	json.NewDecoder(response.Body).Decode(&data)
+
+	for _, value := range data.Services {
+		for _, tld := range value[0] {
+			values[tld] = value[1][0]
+		}
+	}
+
+	return values
+}
+
+func ExtractTld(domain string) string {
+	elements := strings.Split(domain, ".")
+
+	if len(elements) == 1 {
+		return elements[0]
+	}
+
+	return strings.Join(elements[1:], ".")
+}
+
+func RdapCheck(domain, service string) Domain {
+	url := fmt.Sprintf("%sdomain/%s?jscard=1", service, domain)
+	response, _ := http.Get(url)
+	now := time.Now()
+
+	defer response.Body.Close()
+	var data RdapResponseData
+	json.NewDecoder(response.Body).Decode(&data)
+
+	for _, event := range data.Events {
+		if event.EventAction == "expiration" {
+			date, _ := time.Parse(time.RFC3339, event.EventDate)
+			daysLeft := date.Sub(now).Hours() / 24
+
+			return Domain{
+				Name:     domain,
+				DaysLeft: math.Floor(daysLeft),
+				Date:     date.Format(time.DateTime),
+			}
+		}
+	}
+
+	return Domain{Name: domain, Failed: true}
+}
+
+func CheckDomains(domains []string) []Domain {
+	values := []Domain{}
+	services := GetRdapServices()
+
+	for _, domain := range domains {
+		tld := ExtractTld(domain)
+		service := services[tld]
+
+		if service != "" {
+			values = append(values, RdapCheck(domain, service))
+		} else {
+			values = append(values, Domain{Name: domain, Failed: true})
+		}
+	}
+
+	return values
+}

checker/struct.go

@@ -0,0 +1,8 @@
+package checker
+
+type Domain struct {
+	Name     string
+	DaysLeft float64
+	Date     string
+	Failed   bool
+}

go.mod

@@ -0,0 +1,22 @@
+module gitnet.fr/deblan/expiration-check
+
+go 1.22.2
+
+require (
+	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect
+	github.com/go-openapi/errors v0.22.0 // indirect
+	github.com/go-openapi/strfmt v0.23.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jedib0t/go-pretty v4.3.0+incompatible // indirect
+	github.com/jedib0t/go-pretty/v6 v6.5.9 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/urfave/cli/v2 v2.27.2 // indirect
+	github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 // indirect
+	go.mongodb.org/mongo-driver v1.14.0 // indirect
+	golang.org/x/sys v0.17.0 // indirect
+)

go.sum

@@ -0,0 +1,32 @@
+github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
+github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
+github.com/cpuguy83/go-md2man/v2 v2.0.4 h1:wfIWP927BUkWJb2NmU/kNDYIBTh/ziUX91+lVfRxZq4=
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/go-openapi/errors v0.22.0 h1:c4xY/OLxUBSTiepAg3j/MHuAv5mJhnf53LLMWFB+u/w=
+github.com/go-openapi/errors v0.22.0/go.mod h1:J3DmZScxCDufmIMsdOuDHxJbdOGC0xtUynjIx092vXE=
+github.com/go-openapi/strfmt v0.23.0 h1:nlUS6BCqcnAk0pyhi9Y+kdDVZdZMHfEKQiS4HaMgO/c=
+github.com/go-openapi/strfmt v0.23.0/go.mod h1:NrtIpfKtWIygRkKVsxh7XQMDQW5HKQl6S5ik2elW+K4=
+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=
+github.com/jedib0t/go-pretty v4.3.0+incompatible h1:CGs8AVhEKg/n9YbUenWmNStRW2PHJzaeDodcfvRAbIo=
+github.com/jedib0t/go-pretty v4.3.0+incompatible/go.mod h1:XemHduiw8R651AF9Pt4FwCTKeG3oo7hrHJAoznj9nag=
+github.com/jedib0t/go-pretty/v6 v6.5.9 h1:ACteMBRrrmm1gMsXe9PSTOClQ63IXDUt03H5U+UV8OU=
+github.com/jedib0t/go-pretty/v6 v6.5.9/go.mod h1:zbn98qrYlh95FIhwwsbIip0LYpwSG8SUOScs+v9/t0E=
+github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
+github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
+github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/oklog/ulid v1.3.1 h1:EGfNDEx6MqHz8B3uNV6QAib1UR2Lm97sHi3ocA6ESJ4=
+github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/urfave/cli/v2 v2.27.2 h1:6e0H+AkS+zDckwPCUrZkKX38mRaau4nL2uipkJpbkcI=
+github.com/urfave/cli/v2 v2.27.2/go.mod h1:g0+79LmHHATl7DAcHO99smiR/T7uGLw84w8Y42x+4eM=
+github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 h1:+qGGcbkzsfDQNPPe9UDgpxAWQrhbbBXOYJFQDq/dtJw=
+github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913/go.mod h1:4aEEwZQutDLsQv2Deui4iYQ6DWTxR14g6m8Wv88+Xqk=
+go.mongodb.org/mongo-driver v1.14.0 h1:P98w8egYRjYe3XDjxhYJagTokP/H6HzlsnojRgZRd80=
+go.mongodb.org/mongo-driver v1.14.0/go.mod h1:Vzb0Mk/pa7e6cWw85R4F/endUC3u0U9jGcNU603k65c=
+golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

main.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"log"
+	"os"
+)
+
+func main() {
+	if err := App().Run(os.Args); err != nil {
+		log.Fatal(err)
+	}
+}

render/render.go

@@ -0,0 +1,71 @@
+package render
+
+import (
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/jedib0t/go-pretty/v6/text"
+	"gitnet.fr/deblan/expiration-check/checker"
+	"os"
+	"sort"
+)
+
+func Render(values []checker.Domain, warning, danger float64) {
+	sort.SliceStable(values, func(i, j int) bool {
+		if values[i].Failed && values[j].Failed {
+			return values[i].Name < values[j].Name
+		}
+
+		if values[i].Failed {
+			return false
+		}
+
+		if values[j].Failed {
+			return true
+		}
+
+		return values[i].DaysLeft < values[j].DaysLeft
+	})
+
+	t := table.NewWriter()
+	t.SetOutputMirror(os.Stdout)
+	t.AppendHeader(table.Row{
+		text.Colors{0, text.FgCyan}.Sprint("Domain"),
+		text.Colors{0, text.FgCyan}.Sprint("Days"),
+		text.Colors{0, text.FgCyan}.Sprint("Date"),
+	})
+	t.SetColumnConfigs([]table.ColumnConfig{
+		{Number: 2, Align: text.AlignRight},
+		{Number: 3, Align: text.AlignRight},
+	})
+
+	for _, value := range values {
+		if value.Failed {
+			t.AppendRow(table.Row{
+				value.Name,
+				text.Colors{0, text.FgRed}.Sprint("FAIL"),
+				text.Colors{0, text.FgRed}.Sprint("FAIL"),
+			}, table.RowConfig{})
+		} else {
+			var days string
+			var date string
+
+			if value.DaysLeft <= danger {
+				days = text.Colors{0, text.FgRed}.Sprint("FAIL")
+				date = text.Colors{0, text.FgRed}.Sprint("FAIL")
+			} else if value.DaysLeft <= warning {
+				days = text.Colors{0, text.FgYellow}.Sprint(value.DaysLeft)
+				date = text.Colors{0, text.FgYellow}.Sprint(value.Date)
+			} else {
+				days = text.Colors{0, text.FgGreen}.Sprint(value.DaysLeft)
+				date = text.Colors{0, text.FgGreen}.Sprint(value.Date)
+			}
+
+			t.AppendRow(table.Row{
+				value.Name,
+				days,
+				date,
+			}, table.RowConfig{})
+		}
+	}
+
+	t.Render()
+}