From 4b97b62f224426f8062c145f9bfeb47a220e2ddb Mon Sep 17 00:00:00 2001 From: trafficlunar Date: Sat, 13 Dec 2025 22:52:32 +0000 Subject: [PATCH] feat: initial commit --- .gitignore | 1 + LICENSE | 661 +++++++++++++++++++++++++++++++++++++++++++++++ README.md | 5 + TODO.md | 6 + assets/icon.svg | 1 + config.toml | 27 ++ go.mod | 21 ++ go.sum | 51 ++++ src/config.go | 61 +++++ src/database.go | 332 ++++++++++++++++++++++++ src/http.go | 140 ++++++++++ src/main.go | 9 + src/statuses.go | 82 ++++++ test/status.go | 37 +++ www/error.html | 81 ++++++ www/favicon.ico | Bin 0 -> 4286 bytes www/index.html | 609 +++++++++++++++++++++++++++++++++++++++++++ www/offline.html | 81 ++++++ www/robots.txt | 3 + 19 files changed, 2208 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 README.md create mode 100644 TODO.md create mode 100644 assets/icon.svg create mode 100644 config.toml create mode 100644 go.mod create mode 100644 go.sum create mode 100644 src/config.go create mode 100644 src/database.go create mode 100644 src/http.go create mode 100644 src/main.go create mode 100644 src/statuses.go create mode 100644 test/status.go create mode 100644 www/error.html create mode 100644 www/favicon.ico create mode 100644 www/index.html create mode 100644 www/offline.html create mode 100644 www/robots.txt diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3997bea --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +*.db \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..4364a3e --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 2025 trafficlunar + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..ccc1c2a --- /dev/null +++ b/README.md @@ -0,0 +1,5 @@ +# TBA - monochrome status page + +TODO: thumbnail + +

The cutest lightweight monochrome status page

diff --git a/TODO.md b/TODO.md new file mode 100644 index 0000000..c8930d0 --- /dev/null +++ b/TODO.md @@ -0,0 +1,6 @@ +- [ ] Accessibility +- [ ] Better mobile support +- [ ] Uptime percentage +- [ ] View incidents +- [ ] Latency graphs? +- [ ] README thumbnail diff --git a/assets/icon.svg b/assets/icon.svg new file mode 100644 index 0000000..4336042 --- /dev/null +++ b/assets/icon.svg @@ -0,0 +1 @@ + \ No newline at end of file diff --git a/config.toml b/config.toml new file mode 100644 index 0000000..3de316c --- /dev/null +++ b/config.toml @@ -0,0 +1,27 @@ +# Name of status page, shown at the top +title = "trafficlunar" + +# Footer link, shown at the bottom +link_text = "go back" +link_url = "https://trafficlunar.net" + +# Default timeline shown on the index page +# Users can still switch views manually +# +# Available options: +# 'minutes' - past 30 minutes +# 'hours' - past 24 hours +# 'days' - past 30 days +default_view = "hours" + +# List of services to monitor +[[services]] +name = "website" +url = "http://localhost:9999/up" +# Response time (in milliseconds) after which the service is considered "Degraded" +# Defaults to 1000ms +latency_threshold = 1000 + +[[services]] +name = "api" +url = "http://localhost:9999/degraded" diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..c9afc23 --- /dev/null +++ b/go.mod @@ -0,0 +1,21 @@ +module status-page + +go 1.25.4 + +require ( + github.com/pelletier/go-toml/v2 v2.2.4 + modernc.org/sqlite v1.40.1 +) + +require ( + github.com/dustin/go-humanize v1.0.1 // indirect + github.com/google/uuid v1.6.0 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/ncruces/go-strftime v0.1.9 // indirect + github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect + golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect + golang.org/x/sys v0.36.0 // indirect + modernc.org/libc v1.66.10 // indirect + modernc.org/mathutil v1.7.1 // indirect + modernc.org/memory v1.11.0 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..8ed8d26 --- /dev/null +++ b/go.sum @@ -0,0 +1,51 @@ +github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY= +github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto= +github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs= +github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA= +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/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= +github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= +github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4= +github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls= +github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4= +github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY= +github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE= +github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo= +golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b h1:M2rDM6z3Fhozi9O7NWsxAkg/yqS/lQJ6PmkyIV3YP+o= +golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b/go.mod h1:3//PLf8L/X+8b4vuAfHzxeRUl04Adcb341+IGKfnqS8= +golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ= +golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc= +golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw= +golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA= +golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k= +golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= +golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg= +golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s= +modernc.org/cc/v4 v4.26.5 h1:xM3bX7Mve6G8K8b+T11ReenJOT+BmVqQj0FY5T4+5Y4= +modernc.org/cc/v4 v4.26.5/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0= +modernc.org/ccgo/v4 v4.28.1 h1:wPKYn5EC/mYTqBO373jKjvX2n+3+aK7+sICCv4Fjy1A= +modernc.org/ccgo/v4 v4.28.1/go.mod h1:uD+4RnfrVgE6ec9NGguUNdhqzNIeeomeXf6CL0GTE5Q= +modernc.org/fileutil v1.3.40 h1:ZGMswMNc9JOCrcrakF1HrvmergNLAmxOPjizirpfqBA= +modernc.org/fileutil v1.3.40/go.mod h1:HxmghZSZVAz/LXcMNwZPA/DRrQZEVP9VX0V4LQGQFOc= +modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI= +modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito= +modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks= +modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI= +modernc.org/libc v1.66.10 h1:yZkb3YeLx4oynyR+iUsXsybsX4Ubx7MQlSYEw4yj59A= +modernc.org/libc v1.66.10/go.mod h1:8vGSEwvoUoltr4dlywvHqjtAqHBaw0j1jI7iFBTAr2I= +modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU= +modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg= +modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI= +modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw= +modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8= +modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns= +modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w= +modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE= +modernc.org/sqlite v1.40.1 h1:VfuXcxcUWWKRBuP8+BR9L7VnmusMgBNNnBYGEe9w/iY= +modernc.org/sqlite v1.40.1/go.mod h1:9fjQZ0mB1LLP0GYrp39oOJXx/I2sxEnZtzCmEQIKvGE= +modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0= +modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A= +modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y= +modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM= diff --git a/src/config.go b/src/config.go new file mode 100644 index 0000000..73e377e --- /dev/null +++ b/src/config.go @@ -0,0 +1,61 @@ +package main + +import ( + "log" + "os" + + "github.com/pelletier/go-toml/v2" +) + +type ServiceConfig struct { + Name string `toml:"name"` + Url string `toml:"url"` + LatencyThreshold int `toml:"latency_threshold"` +} + +type Config struct { + Title string `toml:"title"` + LinkText string `toml:"link_text"` + LinkUrl string `toml:"link_url"` + DefaultView string `toml:"default_view"` + Services []ServiceConfig `toml:"services"` +} + +var config Config + +func LoadConfig() { + configFile, err := os.ReadFile("config.toml") + if err != nil { + log.Fatalf("failed to load config: %v", err) + } + + if err := toml.Unmarshal(configFile, &config); err != nil { + log.Fatalf("failed to parse config file: %v", err) + } + + templateData.Title = config.Title + templateData.LinkText = config.LinkText + templateData.LinkUrl = config.LinkUrl + templateData.Services = make([]Service, len(config.Services)) + for index, ser := range config.Services { + // default to 1000ms + latencyThreshold := int64(ser.LatencyThreshold) + if latencyThreshold == 0 { + latencyThreshold = 1000 + } + + service := Service{ + Name: ser.Name, + Url: ser.Url, + LatencyThreshold: latencyThreshold, + Status: "Unknown", + MinuteTimeline: make([]TimelineEntry, 30), + HourTimeline: make([]TimelineEntry, 24), + DayTimeline: make([]TimelineEntry, 30), + } + + templateData.Services[index] = service + } + + log.Println("config loaded") +} diff --git a/src/database.go b/src/database.go new file mode 100644 index 0000000..f8dcaee --- /dev/null +++ b/src/database.go @@ -0,0 +1,332 @@ +package main + +import ( + "database/sql" + "log" + "time" + + _ "modernc.org/sqlite" +) + +var STATUS_PRIORITY = map[string]int{"Offline": 2, "Degraded": 1, "Online": 0} +var db *sql.DB + +func InitializeDatabase() { + // open/create database + var err error + db, err = sql.Open("sqlite", "status.db") + if err != nil { + log.Fatalf("failed to initalise database: %v", err) + } + + db.SetMaxOpenConns(1) + + _, err = db.Exec(` + CREATE TABLE IF NOT EXISTS timeline ( + service TEXT NOT NULL, + status TEXT NOT NULL, + time DATETIME NOT NULL + ); + `) + if err != nil { + log.Fatalf("failed to create table: %v", err) + } + + _, err = db.Exec(` + CREATE TABLE IF NOT EXISTS incidents ( + service TEXT NOT NULL, + status TEXT NOT NULL, + startTime DATETIME NOT NULL, + endTime DATETIME + ); + `) + if err != nil { + log.Fatalf("failed to create table: %v", err) + } + + // load template data from database + for index, service := range templateData.Services { + // timelines + rawTimeline := GetRawTimeline(service) + + service.MinuteTimeline = generateRecap(rawTimeline, "minutes") + service.HourTimeline = generateRecap(rawTimeline, "hours") + service.DayTimeline = generateRecap(rawTimeline, "days") + + // incidents + incidentRows, err := db.Query(`SELECT status, startTime, endTime FROM incidents WHERE service = ?`, service.Name) + if err != nil { + log.Fatalf("failed to load incidents for %s: %v", service.Name, err) + } + defer incidentRows.Close() + + for incidentRows.Next() { + var record Incident + var startTimeStr string + var endTimeStr sql.NullString + + err := incidentRows.Scan(&record.Status, &startTimeStr, &endTimeStr) + if err != nil { + log.Fatalf("failed to scan incident row: %v", err) + } + + record.StartTime, err = time.Parse(time.RFC3339, startTimeStr) + if err != nil { + log.Fatalf("failed to parse incident startTime: %v", err) + } + + if endTimeStr.Valid { + parsedEndTime, err := time.Parse(time.RFC3339, endTimeStr.String) + if err != nil { + log.Fatalf("failed to parse incident endTime: %v", err) + } + record.EndTime = &parsedEndTime + } + + // add to templateData + service.Incidents = append(service.Incidents, record) + } + + if err := incidentRows.Err(); err != nil { + log.Fatalf("incident row iteration error: %v", err) + } + + // set data + templateData.Services[index] = service + } + + log.Println("database initalised") +} + +func CloseDatabase() { + if db != nil { + db.Close() + } +} + +func GetRawTimeline(service Service) []TimelineEntry { + rows, err := db.Query(`SELECT status, time FROM timeline WHERE service = ? AND time >= datetime('now', '-30 days') ORDER BY time`, service.Name) + if err != nil { + log.Fatalf("failed to load timeline for %s: %v", service.Name, err) + } + defer rows.Close() + + var rawTimeline []TimelineEntry + for rows.Next() { + var record TimelineEntry + var timeStr string + + err := rows.Scan(&record.Status, &timeStr) + if err != nil { + log.Fatalf("failed to scan row: %v", err) + } + + record.Time, err = time.Parse(time.RFC3339, timeStr) + if err != nil { + log.Fatalf("failed to parse datetime: %v", err) + } + + rawTimeline = append(rawTimeline, record) + } + + if err := rows.Err(); err != nil { + log.Fatalf("timeline row iteration error: %v", err) + } + + return rawTimeline +} + +func generateRecap(rawTimeline []TimelineEntry, view string) []TimelineEntry { + now := time.Now().UTC() + + var cutoff time.Time + var limit = 30 + var format string + + switch view { + case "minutes": + cutoff = now.Add(-30 * time.Minute) + format = "3:04 pm" + case "hours": + cutoff = now.Add(-24 * time.Hour) + limit = 24 + format = "3 pm" + case "days": + cutoff = now.AddDate(0, 0, -30) + format = "2 Jan" + } + + recapMap := make(map[time.Time]string) + + for _, entry := range rawTimeline { + if entry.Time.Before(cutoff) { + continue + } + + var truncated time.Time + switch view { + case "minutes": + truncated = entry.Time.Truncate(time.Minute) + case "hours": + truncated = entry.Time.Truncate(time.Hour) + case "days": + truncated = time.Date(entry.Time.Year(), entry.Time.Month(), entry.Time.Day(), 0, 0, 0, 0, time.UTC) + } + + if existing, ok := recapMap[truncated]; ok { + // check if status is worse + if STATUS_PRIORITY[entry.Status] > STATUS_PRIORITY[existing] { + recapMap[truncated] = entry.Status + } + } else { + recapMap[truncated] = entry.Status + } + } + + var timeline []TimelineEntry + for i := 0; i < limit; i++ { + var timestamp time.Time + + switch view { + case "minutes": + timestamp = now.Add(-time.Duration(30-i) * time.Minute).Truncate(time.Minute) + case "hours": + timestamp = now.Add(-time.Duration(24-i) * time.Hour).Truncate(time.Hour) + case "days": + day := now.AddDate(0, 0, -(30 - i)) + timestamp = time.Date(day.Year(), day.Month(), day.Day(), 0, 0, 0, 0, time.UTC) + } + + status := "Unknown" + if s, ok := recapMap[timestamp]; ok { + status = s + } + + timeline = append(timeline, TimelineEntry{ + Status: status, + Time: timestamp, + FormattedTime: timestamp.Format(format), + }) + } + + return timeline +} + +// add entry to timeline and remove entries older than 30 days +func AddToTimeline(serviceIndex int, status string) { + service := templateData.Services[serviceIndex] + now := time.Now().UTC() + + tx, err := db.Begin() + if err != nil { + log.Printf("failed to begin transaction: %v", err) + return + } + defer tx.Rollback() + + _, err = tx.Exec(`INSERT INTO timeline (service, status, time) VALUES (?, ?, ?)`, + service.Name, status, now) + if err != nil { + log.Printf("failed to add to timeline: %v", err) + return + } + + _, err = tx.Exec(`DELETE FROM timeline WHERE time < datetime('now', '-30 days')`) + if err != nil { + log.Printf("failed to delete old timeline entries: %v", err) + return + } + + if err = tx.Commit(); err != nil { + log.Printf("failed to commit transaction: %v", err) + } + + // update template data + service.MinuteTimeline = append(service.MinuteTimeline, TimelineEntry{ + Status: status, + Time: now, + FormattedTime: now.Format("3:04 pm"), + }) + + // enforce limit + if len(service.MinuteTimeline) > 30 { + service.MinuteTimeline = service.MinuteTimeline[1:] + } + + nowHour := now.Truncate(time.Hour) + nowDay := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.UTC) + + // check if timeline is empty or hour has changed + if len(service.HourTimeline) == 0 || service.HourTimeline[len(service.HourTimeline)-1].Time.Before(nowHour) { + service.HourTimeline = append(service.HourTimeline, TimelineEntry{ + Status: status, + Time: now, + FormattedTime: now.Format("3 pm"), + }) + + // enforce limit + if len(service.HourTimeline) > 24 { + service.HourTimeline = service.HourTimeline[1:] + } + } else { + // update existing entry if it's the same hour but status is worse + lastIndex := len(service.HourTimeline) - 1 + if STATUS_PRIORITY[status] > STATUS_PRIORITY[service.HourTimeline[lastIndex].Status] { + service.HourTimeline[lastIndex].Status = status + } + } + + // check if timeline is empty or day has changed + if len(service.DayTimeline) == 0 || service.DayTimeline[len(service.DayTimeline)-1].Time.Before(nowDay) { + service.DayTimeline = append(service.DayTimeline, TimelineEntry{ + Status: status, + Time: now, + FormattedTime: now.Format("2 Jan"), + }) + + // enforce limit + if len(service.DayTimeline) > 30 { + service.DayTimeline = service.DayTimeline[1:] + } + } else { + // update existing entry if it's the same day but status is worse + lastIndex := len(service.DayTimeline) - 1 + if STATUS_PRIORITY[status] > STATUS_PRIORITY[service.DayTimeline[lastIndex].Status] { + service.DayTimeline[lastIndex].Status = status + } + } + + templateData.Services[serviceIndex] = service +} + +func AddIncident(serviceIndex int, status string, startTime time.Time) { + service := templateData.Services[serviceIndex] + + _, err := db.Exec(`INSERT INTO incidents (service, status, startTime) VALUES (?, ?, ?)`, service.Name, status, startTime) + if err != nil { + log.Printf("failed to add incident: %v", err) + } + + service.Incidents = append(service.Incidents, Incident{ + Status: status, + StartTime: startTime, + }) + templateData.Services[serviceIndex] = service + log.Println("(" + service.Name + ") incident started") +} + +func ResolveIncident(serviceIndex int, serviceName string, endTime time.Time) { + // get latest incident + service := templateData.Services[serviceIndex] + incident := service.Incidents[len(service.Incidents)-1] + + // find row using latest incident's startTime and update database + _, err := db.Exec(`UPDATE incidents SET endTime = ? WHERE service = ? AND startTime = ?`, endTime, serviceName, incident.StartTime) + if err != nil { + log.Printf("failed to resolve incident: %v", err) + } + + service.Incidents[len(service.Incidents)-1].EndTime = &endTime + templateData.Services[serviceIndex] = service + log.Println("(" + service.Name + ") incident resolved") +} diff --git a/src/http.go b/src/http.go new file mode 100644 index 0000000..643696b --- /dev/null +++ b/src/http.go @@ -0,0 +1,140 @@ +package main + +import ( + "compress/gzip" + "html/template" + "log" + "net/http" + "strings" + "time" +) + +type Incident struct { + Status string + StartTime time.Time + EndTime *time.Time + // formatted duration + Duration string +} + +type TimelineEntry struct { + Status string + Time time.Time + FormattedTime string +} + +type Service struct { + Name string + Url string + LatencyThreshold int64 + Status string + MinuteTimeline []TimelineEntry + HourTimeline []TimelineEntry + DayTimeline []TimelineEntry + Incidents []Incident +} + +type TemplateData struct { + Title string + View string + LinkText string + LinkUrl string + LastUpdated int64 + IsOperational bool + Services []Service +} + +type ErrorTemplateData struct { + Title string + Error string +} + +func ToUpper(s string) string { + return strings.ToUpper(s) +} + +var templateData = TemplateData{ + LastUpdated: time.Now().UTC().UnixMilli(), +} +var tmpl *template.Template +var errorTmpl *template.Template + +func renderError(w http.ResponseWriter, statusCode int, message string) { + w.WriteHeader(statusCode) + + errorData := ErrorTemplateData{ + Error: message, + } + + if err := errorTmpl.ExecuteTemplate(w, "error.html", errorData); err != nil { + log.Printf("error template execute error: %v", err) + http.Error(w, message, statusCode) + } +} + +func index(w http.ResponseWriter, req *http.Request) { + // Handle 404 + if req.URL.Path != "/" { + renderError(w, http.StatusNotFound, "Page not found") + return + } + + data := templateData + data.View = req.URL.Query().Get("view") + + switch data.View { + case "hours", "minutes", "days": + // is valid, do nothing + case "": + data.View = config.DefaultView + default: + renderError(w, http.StatusBadRequest, "Invalid view parameter") + return + } + + // encode response in gzip + w.Header().Set("Content-Encoding", "gzip") + gw := gzip.NewWriter(w) + defer gw.Close() + + if err := tmpl.ExecuteTemplate(gw, "index.html", data); err != nil { + log.Printf("template execute error: %v", err) + renderError(w, http.StatusInternalServerError, "Internal server error") + return + } +} + +func favicon(w http.ResponseWriter, req *http.Request) { + http.ServeFile(w, req, "www/favicon.ico") +} + +func robots(w http.ResponseWriter, req *http.Request) { + http.ServeFile(w, req, "www/robots.txt") +} + +func StartHttpServer() { + var err error + log.Println("starting server on :8888") + + // create template + funcMap := template.FuncMap{ + "ToUpper": ToUpper, + } + + tmpl, err = template.New("index").Funcs(funcMap).ParseFiles("www/index.html") + if err != nil { + log.Fatalf("failed to parse templates: %v", err) + } + errorTmpl, err = template.New("error").ParseFiles("www/error.html") + if err != nil { + log.Fatalf("failed to parse templates: %v", err) + } + + // http server + http.HandleFunc("/", index) + http.HandleFunc("/favicon.ico", favicon) + http.HandleFunc("/robots.txt", robots) + if err := http.ListenAndServe(":8888", nil); err != nil { + log.Fatalf("server failed: %v", err) + } +} diff --git a/src/main.go b/src/main.go new file mode 100644 index 0000000..ce7e1b7 --- /dev/null +++ b/src/main.go @@ -0,0 +1,9 @@ +package main + +func main() { + LoadConfig() + InitializeDatabase() + defer CloseDatabase() + StartCheckingStatuses() + StartHttpServer() +} diff --git a/src/statuses.go b/src/statuses.go new file mode 100644 index 0000000..4d0922f --- /dev/null +++ b/src/statuses.go @@ -0,0 +1,82 @@ +package main + +import ( + "log" + "net/http" + "sync" + "time" +) + +var client = http.Client{ + Timeout: 10 * time.Second, +} + +func checkStatuses() { + var wg sync.WaitGroup + + for index, service := range templateData.Services { + wg.Add(1) + + // run in parallel + go func(index int, service Service) { + defer wg.Done() + log.Println("(" + service.Name + ") sending request to " + service.Url) + + startTime := time.Now().UTC() + res, err := client.Get(service.Url) + latency := time.Since(startTime).Milliseconds() + + status := "Online" + + if err != nil || res.StatusCode != 200 { + status = "Offline" + } else if latency >= service.LatencyThreshold { + status = "Degraded" + } + + log.Printf("(%s) status is %s (latency: %dms)", service.Name, status, latency) + + AddToTimeline(index, status) + rawTimeline := GetRawTimeline(service) + + // check if status has changed from last request + if len(rawTimeline) == 0 || rawTimeline[len(rawTimeline)-1].Status != status { + if status == "Offline" || status == "Degraded" { + AddIncident(index, status, startTime) + } else if len(service.Incidents) != 0 && service.Incidents[len(service.Incidents)-1].EndTime == nil { + // if status is Online and there was an ongoing incident + ResolveIncident(index, service.Name, startTime) // startTime is actually finishTime + } + } + + templateData.Services[index].Status = status + }(index, service) + } + + // wait for all status checks to complete + wg.Wait() + + // check if all services are operational + isOperational := true + for _, service := range templateData.Services { + if service.Status == "Offline" || service.Status == "Degraded" { + isOperational = false + break + } + } + + templateData.IsOperational = isOperational + templateData.LastUpdated = time.Now().UTC().UnixMilli() +} + +func StartCheckingStatuses() { + log.Println("started checking statuses...") + + go func() { + checkStatuses() + + for range time.Tick(1 * time.Minute) { + checkStatuses() + } + }() +} diff --git a/test/status.go b/test/status.go new file mode 100644 index 0000000..c3fc1b5 --- /dev/null +++ b/test/status.go @@ -0,0 +1,37 @@ +package main + +import ( + "fmt" + "log" + "net/http" + "time" +) + +func upHandler(w http.ResponseWriter, req *http.Request) { + w.WriteHeader(http.StatusOK) + fmt.Fprintln(w, "UP") +} + +// simulate slow response (>1000ms) +func degradedHandler(w http.ResponseWriter, req *http.Request) { + time.Sleep(1200 * time.Millisecond) + w.WriteHeader(http.StatusOK) + fmt.Fprintln(w, "DEGRADED") +} + +func downHandler(w http.ResponseWriter, req *http.Request) { + w.WriteHeader(http.StatusInternalServerError) + fmt.Fprintln(w, "DOWN") +} + +func main() { + http.HandleFunc("/up", upHandler) + http.HandleFunc("/degraded", degradedHandler) + http.HandleFunc("/down", downHandler) + + log.Println("test server starting on :9999") + + if err := http.ListenAndServe(":9999", nil); err != nil { + log.Fatalf("test server failed: %v", err) + } +} diff --git a/www/error.html b/www/error.html new file mode 100644 index 0000000..f01af58 --- /dev/null +++ b/www/error.html @@ -0,0 +1,81 @@ + + + + + + error - {{ .Title }} + + + + + + + + + + +
+ (𖦹﹏𖦹;) + +

error — trafficlunar

+

{{ .Error }}

+
+ + diff --git a/www/favicon.ico b/www/favicon.ico new file mode 100644 index 0000000000000000000000000000000000000000..961890c8942f3a7674b8a948e41cb9e5baad50be GIT binary patch literal 4286 zcmc(jy^h*I6on^BK^dyFp-dI=04aEb@CZBtZ?KjqLW$B)hLVC}p`^irn%GUM6!;DJ zD-tQIbeDf5=#!bx4=_!5ns11a?vOX>JCL$@7iay(9DCn zf;Qr{URimOG|@f>YAnOs))Yw}k1T|mu(4&ec$|W#!LmGEUAz*E$Kwx+#o~9f*>vOX z{)`7+c-jJ{)9H^`s8*|Y_mjs9&04L7Rg5S8*z)}N`1m5u&9l#qMk9vxdOeA!Z^v!i zxfZYOcKfUtGaL@T;NNPs61`Ko>`fSk@p`?EXR{e8@nA4GkUnF~`M!T~AMpbHe*g1m zH2O~e(%yTX7q3>UB#wQ=57MV*G>B=p+ZWe@=VUVZwp=dP3jTmB?=UmVL?!MrOx1F=P>}eY8IdiA{@p5ZQ`&)0T*X#9?`qA6(_fM`r<1X;$ z%(!E=PTEsp_FJ>;<`K+=7~t zzlufbAeNkK)~vKle9{cMGcge3Bk42795J~ON0nG2vHlo+_+`wyjWKT`V=B-$=C!AP ZA3*b$YVyH5=K0bPE0Ksc9(du2_a7A5s`~%{ literal 0 HcmV?d00001 diff --git a/www/index.html b/www/index.html new file mode 100644 index 0000000..e609cac --- /dev/null +++ b/www/index.html @@ -0,0 +1,609 @@ + + + + + + status - {{ .Title }} + + + + + + + + + + +
+
+ {{ if .IsOperational }} ( • ⩊ • ) {{ else }} ( 𖦹 ﹏ 𖦹 ) {{ end }} +
+

status — {{ .Title }}

+ +
+
+ {{ if .IsOperational }} ✔ {{ else }} ✖ {{ end }} + {{ if .IsOperational }} All services are operational! {{ else }} We're experiencing some problems! {{ end }} +
+ +
+
+ +
+

Last updated: ? ago

+ +
+
+
+ Offline +
+
+
+ Degraded +
+
+
+ Online +
+
+
+ +
+ {{ range $serviceIndex, $serviceStatus := .Services }} +
+
+ + {{ $serviceStatus.Name }} + + + + + + {{ $serviceStatus.Status | ToUpper }} +
+ +
+ +
+ {{ if eq $.View "minutes" }} +
+ {{ range $timelineIndex, $timelineStatus := $serviceStatus.MinuteTimeline }} +
+
+
+ {{ end }} +
+ +
+ 30 minutes ago + now +
+ {{ else if eq $.View "hours" }} +
+ {{ range $timelineIndex, $timelineStatus := $serviceStatus.HourTimeline }} +
+
+
+ {{ end }} +
+ +
+ 24 hours ago + now +
+ + {{ else }} +
+ {{ range $timelineIndex, $timelineStatus := $serviceStatus.DayTimeline }} +
+
+
+ {{ end }} +
+ +
+ 30 days ago + today +
+ {{ end }} +
+
+ {{ else }} +

No services configured.

+ {{ end }} +
+ + +
+ + + + diff --git a/www/offline.html b/www/offline.html new file mode 100644 index 0000000..e81c56f --- /dev/null +++ b/www/offline.html @@ -0,0 +1,81 @@ + + + + + + website offline + + + + + + + + + + +
+ (𖦹﹏𖦹;) + +

offline — trafficlunar

+

+ This website is currently offline! It will be back soon, please check the + status page for updates! +

+
+ + diff --git a/www/robots.txt b/www/robots.txt new file mode 100644 index 0000000..60f21e9 --- /dev/null +++ b/www/robots.txt @@ -0,0 +1,3 @@ +User-agent: * +Allow: / +Disallow: /* \ No newline at end of file