Initial commit

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guessi 2020-02-22 23:39:16 +08:00
commit 88ea71f172
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.git

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# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/

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Dockerfile Normal file
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FROM golang:1.13-alpine3.11 AS builder
RUN apk add --no-cache git
WORKDIR ${GOPATH}/src/github.com/guessi/ssl-certs-checker
COPY . .
RUN go build -o /go/bin/ssl-certs-checker
FROM alpine:3.11
COPY --from=builder /go/bin/ssl-certs-checker /opt/
WORKDIR /opt/
ENTRYPOINT ["/opt/ssl-certs-checker"]

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MIT License
Copyright (c) 2020 guessi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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README.md Normal file
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# SSL certificate checker written in golang
## Setup Guide
go get -u github.com/guessi/ssl-certs-checker
## Examples
install binary to your ${GOPATH}
go install github.com/ssl-certs-checker
check single target host certificates infomation
${GOPATH}/bin/ssl-certs-checker --hosts "www.google.com"
+----------------+----------------+-------------------------------+-------------------------------+------------+
| Host | Common Name | Not Before | Not After | Issuer |
+----------------+----------------+-------------------------------+-------------------------------+------------+
| www.google.com | www.google.com | 2020-02-12 11:47:41 +0000 UTC | 2020-05-06 11:47:41 +0000 UTC | GTS CA 1O1 |
+----------------+----------------+-------------------------------+-------------------------------+------------+
check multiple target hosts' certificates at once
${GOPATH}/bin/ssl-certs-checker --hosts "www.google.com,www.azure.com,www.amazon.com"
+----------------+----------------+-------------------------------+-------------------------------+-----------------------+
| Host | Common Name | Not Before | Not After | Issuer |
+----------------+----------------+-------------------------------+-------------------------------+-----------------------+
| www.google.com | www.google.com | 2020-02-12 11:47:41 +0000 UTC | 2020-05-06 11:47:41 +0000 UTC | GTS CA 1O1 |
| www.azure.com | *.azure.com | 2019-12-17 19:51:44 +0000 UTC | 2020-12-17 19:51:44 +0000 UTC | Microsoft IT TLS CA 4 |
| www.amazon.com | www.amazon.com | 2019-09-18 00:00:00 +0000 UTC | 2020-08-23 12:00:00 +0000 UTC | DigiCert Global CA G2 |
+----------------+----------------+-------------------------------+-------------------------------+-----------------------+
run with docker
docker build -t ssl-certs-checker .
docker run --rm -it ssl-certs-checker --hosts "www.google.com"
# License
[MIT LICENSE](LICENSE)

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config.go Normal file
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package main
import "time"
const (
dialerTimeout = 10 * time.Second
protocol = "tcp"
)

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go.mod Normal file
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module github.com/guessi/ssl-certs-checker
go 1.13
require (
github.com/go-openapi/strfmt v0.19.4 // indirect
github.com/jedib0t/go-pretty v4.3.0+incompatible
github.com/mattn/go-runewidth v0.0.8 // indirect
github.com/stretchr/testify v1.5.1 // indirect
github.com/urfave/cli/v2 v2.1.1
golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c // indirect
)

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go.sum Normal file
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4B6AGu/h5Sxe66HYVdqdGu2l9Iebqhi/AEoA=
github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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/go-openapi/errors v0.19.2 h1:a2kIyV3w+OS3S97zxUndRVD46+FhGOUBDFY7nmu4CsY=
github.com/go-openapi/errors v0.19.2/go.mod h1:qX0BLWsyaKfvhluLejVpVNwNRdXZhEbTA4kxxpKBC94=
github.com/go-openapi/strfmt v0.19.4 h1:eRvaqAhpL0IL6Trh5fDsGnGhiXndzHFuA05w6sXH6/g=
github.com/go-openapi/strfmt v0.19.4/go.mod h1:eftuHTlB/dI8Uq8JJOyRlieZf+WkkxUuk0dgdHXr2Qk=
github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
github.com/google/uuid v1.1.1/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/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuujKs0=
github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
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/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/tidwall/pretty v1.0.0 h1:HsD+QiTn7sK6flMKIvNmpqz1qrpP3Ps6jOKIKMooyg4=
github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
github.com/urfave/cli/v2 v2.1.1 h1:Qt8FeAtxE/vfdrLmR3rxR6JRE0RoVmbXu8+6kZtYU4k=
github.com/urfave/cli/v2 v2.1.1/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
go.mongodb.org/mongo-driver v1.0.3 h1:GKoji1ld3tw2aC+GX1wbr/J2fX13yNacEYoJ8Nhr0yU=
go.mongodb.org/mongo-driver v1.0.3/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c h1:jceGD5YNJGgGMkJz79agzOln1K9TaZUjv5ird16qniQ=
golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

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package main
import (
"os"
"github.com/urfave/cli/v2"
)
func main() {
app := &cli.App{
Name: "SSL Certificate Checker",
Usage: "check SSL certificates at once",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "hosts",
Aliases: []string{"H"},
Value: "",
Usage: "target hosts, splits by comma",
Required: true,
},
},
Action: func(c *cli.Context) error {
prettyPrintCertsInfo(c.String("hosts"))
return nil
},
}
err := app.Run(os.Args)
if err != nil {
os.Exit(1)
}
}

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utils.go Normal file
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package main
import (
"crypto/tls"
"crypto/x509"
"net"
"os"
"strconv"
"strings"
"github.com/jedib0t/go-pretty/table"
"github.com/jedib0t/go-pretty/text"
)
func getPeerCertificates(h string, port int) ([]*x509.Certificate, error) {
conn, err := tls.DialWithDialer(
&net.Dialer{
Timeout: dialerTimeout,
},
protocol,
h+":"+strconv.Itoa(port),
&tls.Config{
ServerName: h,
})
if err != nil {
return nil, err
}
defer conn.Close()
if err := conn.Handshake(); err != nil {
return nil, err
}
return conn.ConnectionState().PeerCertificates, nil
}
func getCells(t table.Writer, h string) {
certs, err := getPeerCertificates(h, 443)
if err != nil {
return // skip if target host invalid
}
for _, c := range certs {
if c.IsCA {
continue
}
t.AppendRows([]table.Row{
{h, (*c).Subject.CommonName, (*c).NotBefore, (*c).NotAfter, (*c).Issuer.CommonName},
})
}
}
func prettyPrintCertsInfo(h string) {
targets := strings.Split(h, ",")
t := table.NewWriter()
t.SetOutputMirror(os.Stdout)
t.AppendHeader(table.Row{
"Host",
"Common Name",
"Not Before",
"Not After",
"Issuer",
})
for _, target := range targets {
getCells(t, target)
}
t.Style().Format.Header = text.FormatDefault
t.Render()
}