├── LICENSE ├── Makefile ├── README.md ├── caissuer_monitor.go ├── go.mod ├── go.sum └── processor_main.go /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | all: clean caissuer_monitor 2 | 3 | # Tidy up files created by compiler/linker. 4 | clean: 5 | rm -f bin/caissuer_monitor 6 | 7 | caissuer_monitor: 8 | go build -ldflags "-X main.build_date=`date -u +%Y-%m-%d.%H:%M:%S` -X main.svn_revision=`svnversion -n`" caissuer_monitor.go processor_main.go 9 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # caissuer_monitor 2 | CA Issuers Monitor (Authority Info Access) 3 | -------------------------------------------------------------------------------- /caissuer_monitor.go: -------------------------------------------------------------------------------- 1 | /* crt.sh: caissuer_monitor - Authority Info Access CA Issuers Monitor 2 | * Written by Rob Stradling 3 | * Copyright (C) 2020 Sectigo Limited 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | package main 20 | 21 | import ( 22 | "crypto/tls" 23 | "crypto/x509" 24 | "database/sql" 25 | "encoding/pem" 26 | "errors" 27 | "flag" 28 | "fmt" 29 | "github.com/lib/pq" 30 | "github.com/miekg/dns" 31 | "go.mozilla.org/pkcs7" 32 | "io/ioutil" 33 | "log" 34 | "net" 35 | "net/http" 36 | "strings" 37 | "time" 38 | ) 39 | 40 | type config struct { 41 | // Common configuration parameters shared by all processors. 42 | ConnInfo string 43 | ConnOpen int 44 | ConnIdle int 45 | ConnLife duration 46 | Interval duration 47 | Batch int 48 | Concurrent int 49 | // Processor-specific config. 50 | HTTPTimeout duration 51 | } 52 | 53 | type Work struct { 54 | c *config 55 | db *sql.DB 56 | dns_config *dns.ClientConfig 57 | transport http.Transport 58 | http_client http.Client 59 | import_cert_statement *sql.Stmt 60 | } 61 | 62 | type WorkItem struct { 63 | ca_id int32 64 | ca_issuer_url string 65 | result string 66 | content_type string 67 | ca_certificate_ids []int64 68 | start_time time.Time 69 | } 70 | 71 | func checkRedirectURL(req *http.Request, via []*http.Request) error { 72 | // Fixup incorrectly encoded redirect URLs 73 | req.URL.RawQuery = strings.Replace(req.URL.RawQuery, " ", "%20", -1) 74 | return nil 75 | } 76 | 77 | // tomlConfig.DefineCustomFlags() and tomlConfig.PrintCustomFlags() 78 | // Specify command-line flags that are specific to this processor. 79 | func (c *config) DefineCustomFlags() { 80 | flag.DurationVar(&c.HTTPTimeout.Duration, "httptimeout", c.HTTPTimeout.Duration, "HTTP timeout") 81 | } 82 | func (c *config) PrintCustomFlags() string { 83 | return fmt.Sprintf("httptimeout:%s", c.HTTPTimeout.Duration) 84 | } 85 | 86 | func (w *Work) Init(c *config) { 87 | w.c = c 88 | w.transport = http.Transport { TLSClientConfig: &tls.Config { InsecureSkipVerify: true } } 89 | w.http_client = http.Client { CheckRedirect: checkRedirectURL, Timeout: w.c.HTTPTimeout.Duration, Transport: &w.transport } 90 | 91 | var err error 92 | w.dns_config, err = dns.ClientConfigFromFile("/etc/resolv.conf") 93 | checkErr(err) 94 | 95 | w.import_cert_statement, err = w.db.Prepare(` 96 | SELECT import_cert($1) 97 | `) 98 | checkErr(err) 99 | } 100 | 101 | // Work.Begin 102 | // Do any DB stuff that needs to happen before a batch of work. 103 | func (w *Work) Begin(db *sql.DB) { 104 | } 105 | 106 | // Work.End 107 | // Do any DB stuff that needs to happen after a batch of work. 108 | func (w *Work) End() { 109 | } 110 | 111 | // Work.Exit 112 | // One-time program exit code. 113 | func (w *Work) Exit() { 114 | w.import_cert_statement.Close() 115 | } 116 | 117 | // Work.Prepare() 118 | // Prepare the driving SELECT query. 119 | func (w *Work) SelectQuery(batch_size int) string { 120 | return fmt.Sprintf(` 121 | SELECT cais.CA_ID, cais.URL 122 | FROM ca_issuer cais 123 | WHERE cais.NEXT_CHECK_DUE < now() AT TIME ZONE 'UTC' 124 | AND cais.IS_ACTIVE 125 | ORDER BY cais.NEXT_CHECK_DUE 126 | LIMIT %d 127 | `, batch_size) 128 | } 129 | 130 | // WorkItem.Parse() 131 | // Parse one SELECTed row to configure one work item. 132 | func (wi *WorkItem) Parse(rs *sql.Rows) error { 133 | return rs.Scan(&wi.ca_id, &wi.ca_issuer_url) 134 | } 135 | 136 | func (wi *WorkItem) logResult(action string, outcome string) { 137 | wi.result = outcome 138 | log.Printf("%v,%v,\"%s\",\"%s\",%d,\"%s\",\"%v\"\n", time.Now().UTC(), time.Now().UTC().Sub(wi.start_time), action, wi.ca_issuer_url, wi.ca_id, outcome, wi.ca_certificate_ids) 139 | } 140 | 141 | func externalIP() (string, error) { 142 | ifaces, err := net.Interfaces() 143 | if err != nil { 144 | return "", err 145 | } 146 | for _, iface := range ifaces { 147 | if iface.Flags&net.FlagUp == 0 { 148 | continue // interface down 149 | } 150 | if iface.Flags&net.FlagLoopback != 0 { 151 | continue // loopback interface 152 | } 153 | addrs, err := iface.Addrs() 154 | if err != nil { 155 | return "", err 156 | } 157 | for _, addr := range addrs { 158 | var ip net.IP 159 | switch v := addr.(type) { 160 | case *net.IPNet: 161 | ip = v.IP 162 | case *net.IPAddr: 163 | ip = v.IP 164 | } 165 | if ip == nil || ip.IsLoopback() { 166 | continue 167 | } 168 | ip = ip.To4() 169 | if ip == nil { 170 | continue // not an ipv4 address 171 | } 172 | return ip.String(), nil 173 | } 174 | } 175 | return "", errors.New("are you connected to the network?") 176 | } 177 | 178 | // WorkItem.Perform() 179 | // Do the work for one item. 180 | func (wi *WorkItem) Perform(db *sql.DB, w *Work) { 181 | wi.start_time = time.Now().UTC() 182 | 183 | switch strings.ToLower(strings.Split(wi.ca_issuer_url, ":")[0]) { 184 | case "http": case "https": break 185 | default: 186 | wi.logResult("ERROR", "Protocol not supported") 187 | return 188 | } 189 | 190 | req, err := http.NewRequest("GET", wi.ca_issuer_url, nil) 191 | req.Header.Set("Connection", "close") 192 | req.Header.Set("User-Agent", "crt.sh") 193 | resp, err := w.http_client.Do(req) 194 | if err != nil { 195 | err_string := err.Error() 196 | if _, ok := err.(net.Error); ok { 197 | for i := 0; i < len(w.dns_config.Servers); i++ { 198 | err_string = strings.ReplaceAll(err_string, w.dns_config.Servers[i], "[redacted]") 199 | } 200 | if external_ip, eerr := externalIP(); eerr == nil { 201 | err_string = strings.ReplaceAll(err_string, external_ip, "[redacted]") 202 | } 203 | } 204 | wi.logResult("ERROR", err_string) 205 | return 206 | } 207 | defer resp.Body.Close() 208 | 209 | wi.content_type = resp.Header.Get("Content-Type") 210 | body, err := ioutil.ReadAll(resp.Body) 211 | if err != nil { 212 | wi.logResult("ERROR", fmt.Sprintf("%v", err)) 213 | return 214 | } 215 | 216 | var cert *x509.Certificate 217 | 218 | block, _ := pem.Decode(body) 219 | if block == nil { 220 | cert, err = x509.ParseCertificate(body) 221 | wi.result = "DER X.509" 222 | } else { 223 | cert, err = x509.ParseCertificate(block.Bytes) 224 | wi.result = "PEM X.509" 225 | } 226 | 227 | if err == nil { // Certificate decoded successfully. 228 | var certificate_id int64 229 | if err = w.import_cert_statement.QueryRow(cert.Raw).Scan(&certificate_id); err != nil { 230 | wi.result = fmt.Sprintf("%v", err) 231 | } else { 232 | wi.ca_certificate_ids = append(wi.ca_certificate_ids, certificate_id) 233 | } 234 | 235 | wi.logResult("DONE", wi.result) 236 | return 237 | } 238 | 239 | var p7 *pkcs7.PKCS7 240 | var p7err error 241 | if block == nil { 242 | p7, p7err = pkcs7.Parse(body) 243 | wi.result = "DER CMS" 244 | } else { 245 | p7, p7err = pkcs7.Parse(block.Bytes) 246 | wi.result = "PEM CMS" 247 | } 248 | 249 | if p7err == nil { // PKCS#7 decoded successfully. 250 | // TODO: A valid "certs-only" CMS message must have the SignedData content type. 251 | // A valid "certs-only" CMS message must contain one or more certificates in the "certificates" portion of the signedData. 252 | if len(p7.Certificates) < 1 { 253 | wi.logResult("DONE", wi.result + " with no certificates") 254 | return 255 | } else { 256 | var certificate_id int64 257 | for _, cert := range p7.Certificates { 258 | if err = w.import_cert_statement.QueryRow(cert.Raw).Scan(&certificate_id); err != nil { 259 | wi.result = fmt.Sprintf("%v", err) 260 | } else { 261 | wi.ca_certificate_ids = append(wi.ca_certificate_ids, certificate_id) 262 | } 263 | } 264 | } 265 | // A valid "certs-only" CMS message must have no signerInfo. 266 | if len(p7.Signers) > 0 { 267 | wi.result += " with signerInfo" 268 | } 269 | // TODO: A valid "certs-only" CMS message must have empty encapsulatedContentInfo. 270 | 271 | } else if resp.StatusCode != 200 { 272 | wi.result = fmt.Sprintf("HTTP %d", resp.StatusCode) 273 | } else if wi.content_type == "application/pkcs7-mime" { 274 | wi.result = fmt.Sprintf("%v", p7err) 275 | } else { 276 | wi.result = fmt.Sprintf("%v", err) 277 | } 278 | 279 | wi.logResult("DONE", wi.result) 280 | } 281 | 282 | // Work.UpdateStatement() 283 | // Prepare the UPDATE statement to be run after processing each work item. 284 | func (w *Work) UpdateStatement() string { 285 | return ` 286 | UPDATE ca_issuer 287 | SET LAST_CHECKED=now() AT TIME ZONE 'UTC', 288 | NEXT_CHECK_DUE=now() AT TIME ZONE 'UTC' + interval '1 hour', 289 | RESULT=$1, 290 | CONTENT_TYPE=$2, 291 | CA_CERTIFICATE_IDS=$3 292 | WHERE CA_ID=$4 293 | AND URL=$5 294 | ` 295 | } 296 | 297 | // WorkItem.Update() 298 | // Update the DB with the results of the work for this item. 299 | func (wi *WorkItem) Update(update_statement *sql.Stmt) (sql.Result, error) { 300 | return update_statement.Exec(wi.result, wi.content_type, pq.Array(wi.ca_certificate_ids), wi.ca_id, wi.ca_issuer_url) 301 | } 302 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/crtsh/caissuer_monitor 2 | 3 | go 1.13 4 | 5 | require ( 6 | github.com/BurntSushi/toml v1.2.1 7 | github.com/lib/pq v1.10.7 8 | github.com/miekg/dns v1.1.51 9 | go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 10 | golang.org/x/tools v0.7.0 // indirect 11 | ) 12 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak= 2 | github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ= 3 | github.com/lib/pq v1.10.7 h1:p7ZhMD+KsSRozJr34udlUrhboJwWAgCg34+/ZZNvZZw= 4 | github.com/lib/pq v1.10.7/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o= 5 | github.com/miekg/dns v1.1.51 h1:0+Xg7vObnhrz/4ZCZcZh7zPXlmU0aveS2HDBd0m0qSo= 6 | github.com/miekg/dns v1.1.51/go.mod h1:2Z9d3CP1LQWihRZUf29mQ19yDThaI4DAYzte2CaQW5c= 7 | github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= 8 | go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 h1:CCriYyAfq1Br1aIYettdHZTy8mBTIPo7We18TuO/bak= 9 | go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352/go.mod h1:SNgMg+EgDFwmvSmLRTNKC5fegJjB7v23qTQ0XLGUNHk= 10 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 11 | golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= 12 | golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= 13 | golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= 14 | golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= 15 | golang.org/x/mod v0.9.0 h1:KENHtAZL2y3NLMYZeHY9DW8HW8V+kQyJsY/V9JlKvCs= 16 | golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= 17 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 18 | golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= 19 | golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= 20 | golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY= 21 | golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= 22 | golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ= 23 | golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc= 24 | golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 25 | golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 26 | golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o= 27 | golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 28 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 29 | golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 30 | golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 31 | golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 32 | golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 33 | golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 34 | golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 35 | golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ= 36 | golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 37 | golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= 38 | golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= 39 | golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc= 40 | golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= 41 | golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U= 42 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 43 | golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 44 | golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= 45 | golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= 46 | golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= 47 | golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= 48 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 49 | golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 50 | golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= 51 | golang.org/x/tools v0.3.0/go.mod h1:/rWhSS2+zyEVwoJf8YAX6L2f0ntZ7Kn/mGgAWcipA5k= 52 | golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= 53 | golang.org/x/tools v0.7.0 h1:W4OVu8VVOaIO0yzWMNdepAulS7YfoS3Zabrm8DOXXU4= 54 | golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s= 55 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 56 | -------------------------------------------------------------------------------- /processor_main.go: -------------------------------------------------------------------------------- 1 | /* crt.sh: caissuer_monitor - Authority Info Access CA Issuers Monitor 2 | * Written by Rob Stradling 3 | * Copyright (C) 2020 Sectigo Limited 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | package main 20 | 21 | import ( 22 | "database/sql" 23 | "errors" 24 | "flag" 25 | "log" 26 | "os" 27 | "os/signal" 28 | "strings" 29 | "sync" 30 | "syscall" 31 | "time" 32 | "github.com/BurntSushi/toml" 33 | _ "github.com/lib/pq" 34 | ) 35 | 36 | type duration struct { 37 | time.Duration 38 | } 39 | 40 | func (d *duration) UnmarshalText(text []byte) error { 41 | var err error 42 | d.Duration, err = time.ParseDuration(string(text)) 43 | return err 44 | } 45 | 46 | func checkErr(err error) { 47 | if err != nil { 48 | panic(err) 49 | } 50 | } 51 | 52 | func recoverErr(context string) { 53 | if r := recover(); r != nil { 54 | log.Printf("ERROR: %v [%s]", r, context) 55 | } 56 | } 57 | 58 | func doUpdateWorkItem(wi *WorkItem, update_statement *sql.Stmt) { 59 | result, err := wi.Update(update_statement) 60 | if err != nil { 61 | log.Printf("ERROR: Update() failed (%v)\n", err) 62 | } else if result != nil { 63 | rows_affected, err := result.RowsAffected() 64 | if err != nil { 65 | log.Printf("ERROR: Update() failed (%v)\n", err) 66 | } else if rows_affected < 1 { 67 | log.Println("ERROR: No rows affected") 68 | } 69 | } 70 | } 71 | 72 | func doBatchOfWork(db *sql.DB, w *Work, batch_size int, concurrent_items int) int { 73 | // Fetch a batch of work to do from the DB 74 | w.Begin(db) 75 | select_query := w.SelectQuery(batch_size) 76 | rows, err := db.Query(select_query) 77 | checkErr(err) 78 | defer rows.Close() 79 | 80 | // Prepare the UPDATE statement that will be run after performing each work item 81 | var update_statement *sql.Stmt 82 | if w.UpdateStatement() != "" { 83 | update_statement, err = db.Prepare(w.UpdateStatement()) 84 | checkErr(err) 85 | defer update_statement.Close() 86 | } 87 | 88 | // Do the batch of work, throttling the number of concurrent work items 89 | var wg sync.WaitGroup 90 | var chan_concurrency = make(chan int, concurrent_items) 91 | var i int 92 | for i = 0; rows.Next(); i++ { 93 | var wi WorkItem 94 | err = wi.Parse(rows) 95 | checkErr(err) 96 | wg.Add(1) 97 | go func() { 98 | defer func() { 99 | wg.Done() 100 | }() 101 | defer doUpdateWorkItem(&wi, update_statement) 102 | chan_concurrency <- 1 103 | defer func() { <-chan_concurrency }() 104 | defer recoverErr("recoverErr") 105 | wi.Perform(db, w) 106 | }() 107 | } 108 | 109 | // Wait for all work items to complete 110 | wg.Wait() 111 | w.End() 112 | 113 | return i 114 | } 115 | 116 | var build_date string 117 | var svn_revision string 118 | 119 | func main() { 120 | defer recoverErr("main") 121 | 122 | // Don't log the date and time, because daemontools does this for us. 123 | log.SetFlags(0) 124 | 125 | // Configure signal handling 126 | chan_signals := make(chan os.Signal, 20) 127 | signal.Notify(chan_signals, os.Interrupt, syscall.SIGTERM) 128 | 129 | // Read configuration file 130 | config_filename := (os.Args[0][(strings.LastIndex(os.Args[0], "/") + 1):len(os.Args[0])]) + ".toml" 131 | var c config 132 | if _, err := toml.DecodeFile(config_filename, &c); err != nil { 133 | config_filename = "default.toml" 134 | if _, err = toml.DecodeFile(config_filename, &c); err != nil { 135 | panic(err) 136 | } 137 | } 138 | 139 | // Parse common command line flags 140 | flag.StringVar(&c.ConnInfo, "conninfo", c.ConnInfo, "DB connection info") 141 | flag.IntVar(&c.ConnOpen, "connopen", c.ConnOpen, "Maximum number of open connections to the DB [0=unlimited]") 142 | flag.IntVar(&c.ConnIdle, "connidle", c.ConnIdle, "Maximum number of connections in the idle connection pool") 143 | flag.DurationVar(&c.ConnLife.Duration, "connlife", c.ConnLife.Duration, "Maximum amount of time a connection may be reused [0=reuse forever]") 144 | flag.DurationVar(&c.Interval.Duration, "interval", c.Interval.Duration, "How often to check for more work [0=exit when no more work to do]") 145 | flag.IntVar(&c.Batch, "batch", c.Batch, "Maximum number of items per batch of work") 146 | flag.IntVar(&c.Concurrent, "concurrent", c.Concurrent, "Maximum number of items processed simultaneously") 147 | var check_config bool 148 | flag.BoolVar(&check_config, "checkconfig", false, "Check configuration then exit") 149 | c.DefineCustomFlags() 150 | flag.Parse() 151 | 152 | // Show configuration 153 | log.Printf("[%s | r%s | %s] baseconfigfile:%s conninfo:%s connopen:%d connidle:%d connlife:%v interval:%v batch:%d concurrent:%d %s", os.Args[0][(strings.LastIndex(os.Args[0], "/") + 1):len(os.Args[0])], svn_revision, strings.Replace(build_date, ".", " ", 1), config_filename, c.ConnInfo, c.ConnOpen, c.ConnIdle, c.ConnLife.Duration, c.Interval.Duration, c.Batch, c.Concurrent, c.PrintCustomFlags()) 154 | 155 | // Check configuration 156 | if c.ConnInfo == "" { 157 | panic(errors.New("No connection info specified!")) 158 | } else if c.ConnOpen == 1 { 159 | panic(errors.New("At least 2 open connections are required!")) 160 | } 161 | 162 | // Connect to the database 163 | db, err := sql.Open("postgres", c.ConnInfo) 164 | checkErr(err) 165 | defer db.Close() 166 | db.SetMaxOpenConns(c.ConnOpen) 167 | db.SetMaxIdleConns(c.ConnIdle) 168 | db.SetConnMaxLifetime(c.ConnLife.Duration) 169 | 170 | // Perform work in batches 171 | var work Work 172 | work.db = db 173 | work.Init(&c) 174 | next_time := time.Now() 175 | keep_looping := true 176 | if check_config { 177 | err = db.Ping() 178 | checkErr(err) 179 | } else { 180 | for keep_looping { 181 | // Perform one batch of work 182 | items_processed := doBatchOfWork(db, &work, c.Batch, c.Concurrent) 183 | 184 | // Exit if interval=0s and there's no more work to do 185 | if (items_processed == 0) && (c.Interval.Duration == 0) { 186 | break 187 | } 188 | 189 | // Schedule the next batch of work 190 | next_time = next_time.Add(c.Interval.Duration) 191 | if (items_processed > 0) || (next_time.Before(time.Now())) { 192 | next_time = time.Now() 193 | } 194 | 195 | // Have a rest if possible. Process any pending SIGINT or SIGTERM. 196 | select { 197 | case sig := <-chan_signals: 198 | log.Printf("Signal received: %v\n", sig) 199 | keep_looping = false 200 | case <-time.After(next_time.Sub(time.Now())): 201 | } 202 | } 203 | } 204 | 205 | // We're done 206 | work.Exit() 207 | log.Println("Goodbye!") 208 | } 209 | --------------------------------------------------------------------------------