Add not after validation and highlighting

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/discord.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DiscordProjectSettings">
+    <option name="show" value="PROJECT_FILES" />
+    <option name="description" value="" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/ssl-certs-checker.iml" filepath="$PROJECT_DIR$/.idea/ssl-certs-checker.iml" />
+    </modules>
+  </component>
+</project>

.idea/ssl-certs-checker.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

go.mod

@@ -3,16 +3,22 @@ module code.mrmelon54.com/melon/ssl-certs-checker
 go 1.20
 
 require (
+	github.com/charmbracelet/lipgloss v0.7.1
 	github.com/jedib0t/go-pretty/v6 v6.4.3
 	github.com/urfave/cli/v2 v2.23.7
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/muesli/reflow v0.3.0 // indirect
+	github.com/muesli/termenv v0.15.1 // indirect
 	github.com/rivo/uniseg v0.4.3 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
-	golang.org/x/sys v0.3.0 // indirect
+	golang.org/x/sys v0.6.0 // indirect
 )

go.sum

@@ -1,3 +1,7 @@
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/charmbracelet/lipgloss v0.7.1 h1:17WMwi7N1b1rVWOjMT+rCh7sQkvDU75B2hbZpc5Kc1E=
+github.com/charmbracelet/lipgloss v0.7.1/go.mod h1:yG0k3giv8Qj8edTCbbg6AlQ5e8KNWpFujkNawKNhE2c=
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -5,12 +9,22 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/jedib0t/go-pretty/v6 v6.4.3 h1:2n9BZ0YQiXGESUSR+6FLg0WWWE80u+mIz35f0uHWcIE=
 github.com/jedib0t/go-pretty/v6 v6.4.3/go.mod h1:MgmISkTWDSFu0xOqiZ0mKNntMQ2mDgOcwOkwBEkMDJI=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.17 h1:BTarxUcIeDqL27Mc+vyvdWYSL28zpIhv3RoTdsLMPng=
+github.com/mattn/go-isatty v0.0.17/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
 github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
+github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
+github.com/muesli/termenv v0.15.1 h1:UzuTb/+hhlBugQz28rpzey4ZuKcZ03MeKsoG7IJZIxs=
+github.com/muesli/termenv v0.15.1/go.mod h1:HeAQPTzpfs016yGtA4g00CsdYnVLJvxsS4ANqrZs2sQ=
 github.com/pkg/profile v1.6.0/go.mod h1:qBsxPvzyUincmltOk6iyRVxHYg4adc0OFOv72ZdLa18=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.3 h1:utMvzDsuh3suAEnhH0RdHmoPbU648o6CvXxTx4SBMOw=
 github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -26,8 +40,9 @@ github.com/urfave/cli/v2 v2.23.7/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6f
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

utils.go

@@ -7,16 +7,24 @@ import (
 	"io/ioutil"
 	"net"
 	"os"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
 	"time"
 
+	"github.com/charmbracelet/lipgloss"
 	"github.com/jedib0t/go-pretty/v6/table"
 	"github.com/jedib0t/go-pretty/v6/text"
 	"gopkg.in/yaml.v3"
 )
 
+var (
+	notAfterFail  = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("196"))
+	notAfter30day = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("202"))
+	notAfterValid = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("46"))
+)
+
 type Config struct {
 	Hosts []string `yaml:"hosts"`
 }
@@ -59,28 +67,42 @@ func getPeerCertificates(h string, port int, timeout int) ([]*x509.Certificate,
 	return conn.ConnectionState().PeerCertificates, nil
 }
 
-func getCells(t table.Writer, host string, port, timeout int, wg *sync.WaitGroup) {
+func getCells(host string, port, timeout int, wg *sync.WaitGroup) []table.Row {
 	defer wg.Done()
 	certs, err := getPeerCertificates(host, port, timeout)
 	if err != nil {
 		fmt.Printf("err: %s\n", err)
-		return // skip if target host invalid
+		return nil // skip if target host invalid
 	}
 
+	n := time.Now()
+	a := make([]table.Row, 0, len(certs))
 	for _, c := range certs {
 		if c.IsCA {
 			continue
 		}
-		t.AppendRows([]table.Row{{
+		a = append(a, table.Row{
 			host + ":" + strconv.Itoa(port),
 			(*c).Subject.CommonName,
 			strings.Join((*c).DNSNames, "\n"),
 			(*c).NotBefore,
-			(*c).NotAfter,
+			renderNotAfter((*c).NotAfter, n),
 			(*c).PublicKeyAlgorithm.String(),
 			(*c).Issuer.CommonName,
-		}})
+		})
 	}
+	return a
+}
+
+func renderNotAfter(t time.Time, n time.Time) string {
+	s := t.Sub(n)
+	r := int(s.Round(24*time.Hour).Hours() / 24)
+	if s < 0 {
+		return notAfterFail.Render(t.String())
+	} else if s < 30*24*time.Hour {
+		return fmt.Sprintf("%s (%d days)", notAfter30day.Render(t.String()), r)
+	}
+	return fmt.Sprintf("%s (%d days)", notAfterValid.Render(t.String()), r)
 }
 
 func prettyPrintCertsInfo(config string, timeout int) {
@@ -104,6 +126,8 @@ func prettyPrintCertsInfo(config string, timeout int) {
 
 	var wg sync.WaitGroup
 
+	as := new(sync.Mutex)
+	a := make([]table.Row, 0, len(rc.Hosts))
 	for _, target := range rc.Hosts {
 		p := defaultPort
 		ts := strings.Split(target, ":")
@@ -117,9 +141,18 @@ func prettyPrintCertsInfo(config string, timeout int) {
 		}
 		wg.Add(1)
 
-		go getCells(t, ts[0], p, timeout, &wg)
+		go func() {
+			b := getCells(ts[0], p, timeout, &wg)
+			as.Lock()
+			a = append(a, b...)
+			as.Unlock()
+		}()
 	}
 	wg.Wait()
+	sort.Slice(a, func(i, j int) bool {
+		return a[i][0].(string) < a[j][0].(string)
+	})
+	t.AppendRows(a)
 
 	t.Style().Format.Header = text.FormatDefault
 	t.Render()