295 lines
11 KiB
Go
295 lines
11 KiB
Go
package panel
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"net/http"
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"runtime"
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"strconv"
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"sync"
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"sync/atomic"
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"time"
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c "github.com/Azareal/Gosora/common"
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p "github.com/Azareal/Gosora/common/phrases"
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qgen "github.com/Azareal/Gosora/query_gen"
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"github.com/Azareal/gopsutil/mem"
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"github.com/pkg/errors"
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)
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type dashStmts struct {
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todaysPostCount *sql.Stmt
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todaysTopicCount *sql.Stmt
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todaysTopicCountByForum *sql.Stmt
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todaysNewUserCount *sql.Stmt
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weeklyTopicCountByForum *sql.Stmt
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}
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// TODO: Stop hard-coding these queries
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func dashMySQLStmts() (stmts dashStmts, err error) {
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db := qgen.Builder.GetConn()
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prepStmt := func(table, ext, dur string) *sql.Stmt {
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if err != nil {
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return nil
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}
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stmt, ierr := db.Prepare("select count(*) from " + table + " where createdAt BETWEEN (utc_timestamp() - interval 1 " + dur + ") and utc_timestamp() " + ext)
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err = errors.WithStack(ierr)
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return stmt
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}
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stmts.todaysPostCount = prepStmt("replies", "", "day")
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stmts.todaysTopicCount = prepStmt("topics", "", "day")
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stmts.todaysNewUserCount = prepStmt("users", "", "day")
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stmts.todaysTopicCountByForum = prepStmt("topics", " and parentID=?", "day")
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stmts.weeklyTopicCountByForum = prepStmt("topics", " and parentID=?", "week")
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return stmts, err
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}
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// TODO: Stop hard-coding these queries
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func dashMSSQLStmts() (stmts dashStmts, err error) {
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db := qgen.Builder.GetConn()
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prepStmt := func(table, ext, dur string) *sql.Stmt {
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if err != nil {
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return nil
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}
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stmt, ierr := db.Prepare("select count(*) from " + table + " where createdAt >= DATEADD(" + dur + ", -1, GETUTCDATE())" + ext)
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err = errors.WithStack(ierr)
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return stmt
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}
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stmts.todaysPostCount = prepStmt("replies", "", "DAY")
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stmts.todaysTopicCount = prepStmt("topics", "", "DAY")
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stmts.todaysNewUserCount = prepStmt("users", "", "DAY")
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stmts.todaysTopicCountByForum = prepStmt("topics", " and parentID=?", "DAY")
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stmts.weeklyTopicCountByForum = prepStmt("topics", " and parentID=?", "WEEK")
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return stmts, err
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}
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type GE = c.GridElement
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func Dashboard(w http.ResponseWriter, r *http.Request, user *c.User) c.RouteError {
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basePage, ferr := buildBasePage(w, r, user, "dashboard", "dashboard")
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if ferr != nil {
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return ferr
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}
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unknown := p.GetTmplPhrase("panel_dashboard_unknown")
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// We won't calculate this on the spot anymore, as the system doesn't seem to like it if we do multiple fetches simultaneously. Should we constantly calculate this on a background thread? Perhaps, the watchdog to scale back heavy features under load? One plus side is that we'd get immediate CPU percentages here instead of waiting it to kick in with WebSockets
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cpustr := unknown
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var cpuColour string
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lessThanSwitch := func(number, lowerBound, midBound int) string {
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switch {
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case number < lowerBound:
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return "stat_green"
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case number < midBound:
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return "stat_orange"
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}
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return "stat_red"
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}
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var ramstr, ramColour string
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memres, err := mem.VirtualMemory()
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if err != nil {
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ramstr = unknown
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} else {
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totalCount, totalUnit := c.ConvertByteUnit(float64(memres.Total))
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usedCount := c.ConvertByteInUnit(float64(memres.Total-memres.Available), totalUnit)
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// Round totals with .9s up, it's how most people see it anyway. Floats are notoriously imprecise, so do it off 0.85
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var totstr string
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if (totalCount - float64(int(totalCount))) > 0.85 {
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usedCount += 1.0 - (totalCount - float64(int(totalCount)))
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totstr = strconv.Itoa(int(totalCount) + 1)
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} else {
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totstr = fmt.Sprintf("%.1f", totalCount)
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}
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if usedCount > totalCount {
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usedCount = totalCount
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}
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ramstr = fmt.Sprintf("%.1f", usedCount) + " / " + totstr + totalUnit
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ramperc := ((memres.Total - memres.Available) * 100) / memres.Total
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ramColour = lessThanSwitch(int(ramperc), 50, 75)
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}
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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memCount, memUnit := c.ConvertByteUnit(float64(m.Sys))
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greaterThanSwitch := func(number, lowerBound, midBound int) string {
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switch {
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case number > midBound:
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return "stat_green"
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case number > lowerBound:
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return "stat_orange"
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}
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return "stat_red"
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}
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// TODO: Add a stat store for this?
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var intErr error
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extractStat := func(stmt *sql.Stmt, args ...interface{}) (stat int) {
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err := stmt.QueryRow(args...).Scan(&stat)
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if err != nil && err != sql.ErrNoRows {
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intErr = err
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}
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return stat
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}
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var stmts dashStmts
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switch qgen.Builder.GetAdapter().GetName() {
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case "mysql":
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stmts, err = dashMySQLStmts()
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case "mssql":
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stmts, err = dashMSSQLStmts()
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default:
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return c.InternalError(errors.New("Unknown database adapter on dashboard"), w, r)
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}
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if err != nil {
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return c.InternalError(err, w, r)
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}
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// TODO: Allow for more complex phrase structures than just suffixes
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postCount := extractStat(stmts.todaysPostCount)
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postInterval := p.GetTmplPhrase("panel_dashboard_day_suffix")
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postColour := greaterThanSwitch(postCount, 5, 25)
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topicCount := extractStat(stmts.todaysTopicCount)
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topicInterval := p.GetTmplPhrase("panel_dashboard_day_suffix")
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topicColour := greaterThanSwitch(topicCount, 0, 8)
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reportCount := extractStat(stmts.weeklyTopicCountByForum, c.ReportForumID)
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reportInterval := p.GetTmplPhrase("panel_dashboard_week_suffix")
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newUserCount := extractStat(stmts.todaysNewUserCount)
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newUserInterval := p.GetTmplPhrase("panel_dashboard_week_suffix")
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// Did any of the extractStats fail?
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if intErr != nil {
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return c.InternalError(intErr, w, r)
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}
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grid1 := []GE{}
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addElem1 := func(id, href, body string, order int, class, back, textColour, tooltip string) {
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grid1 = append(grid1, GE{id, href, body, order, class, back, textColour, tooltip})
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}
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gridElements := []GE{}
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addElem := func(id, href, body string, order int, class, back, textColour, tooltip string) {
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gridElements = append(gridElements, GE{id, href, body, order, class, back, textColour, tooltip})
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}
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// TODO: Implement a check for new versions of Gosora
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// TODO: Localise this
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//addElem1("dash-version", "", "v" + version.String(), 0, "grid_istat stat_green", "", "", "Gosora is up-to-date :)")
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addElem1("dash-version", "", "v"+c.SoftwareVersion.String(), 0, "grid_istat", "", "", "")
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addElem1("dash-cpu", "", p.GetTmplPhrasef("panel_dashboard_cpu", cpustr), 1, "grid_istat "+cpuColour, "", "", p.GetTmplPhrase("panel_dashboard_cpu_desc"))
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addElem1("dash-ram", "", p.GetTmplPhrasef("panel_dashboard_ram", ramstr), 2, "grid_istat "+ramColour, "", "", p.GetTmplPhrase("panel_dashboard_ram_desc"))
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addElem1("dash-memused", "/panel/analytics/memory/", p.GetTmplPhrasef("panel_dashboard_memused", memCount, memUnit), 2, "grid_istat", "", "", p.GetTmplPhrase("panel_dashboard_memused_desc"))
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/*dirSize := getDirSize()
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if dirSize.Size != 0 {
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dirFloat, unit := c.ConvertByteUnit(float64(dirSize.Size))
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addElem1("dash-disk","", p.GetTmplPhrasef("panel_dashboard_disk", dirFloat, unit), 2, "grid_istat", "", "", p.GetTmplPhrase("panel_dashboard_disk_desc"))
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dur := time.Since(dirSize.Time)
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if dur.Seconds() > 3 {
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startDirSizeTask()
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}
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} else {
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addElem1("dash-disk","", p.GetTmplPhrase("panel_dashboard_disk_unknown"), 2, "grid_istat", "", "", p.GetTmplPhrase("panel_dashboard_disk_desc"))
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startDirSizeTask()
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}*/
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if c.EnableWebsockets {
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uonline := c.WsHub.UserCount()
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gonline := c.WsHub.GuestCount()
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totonline := uonline + gonline
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//reqCount := 0
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onlineColour := greaterThanSwitch(totonline, 3, 10)
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onlineGuestsColour := greaterThanSwitch(gonline, 1, 10)
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onlineUsersColour := greaterThanSwitch(uonline, 1, 5)
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totonline, totunit := c.ConvertFriendlyUnit(totonline)
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uonline, uunit := c.ConvertFriendlyUnit(uonline)
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gonline, gunit := c.ConvertFriendlyUnit(gonline)
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addElem("dash-totonline", "", p.GetTmplPhrasef("panel_dashboard_online", totonline, totunit), 3, "grid_stat "+onlineColour, "", "", p.GetTmplPhrase("panel_dashboard_online_desc"))
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addElem("dash-gonline", "", p.GetTmplPhrasef("panel_dashboard_guests_online", gonline, gunit), 4, "grid_stat "+onlineGuestsColour, "", "", p.GetTmplPhrase("panel_dashboard_guests_online_desc"))
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addElem("dash-uonline", "", p.GetTmplPhrasef("panel_dashboard_users_online", uonline, uunit), 5, "grid_stat "+onlineUsersColour, "", "", p.GetTmplPhrase("panel_dashboard_users_online_desc"))
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//addElem("dash-reqs","", strconv.Itoa(reqCount) + " reqs / second", 7, "grid_stat grid_end_group " + topicColour, "", "", "The number of requests over the last 24 hours")
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}
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addElem("dash-postsperday", "", p.GetTmplPhrasef("panel_dashboard_posts", postCount, postInterval), 6, "grid_stat "+postColour, "", "", p.GetTmplPhrase("panel_dashboard_posts_desc"))
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addElem("dash-topicsperday", "", p.GetTmplPhrasef("panel_dashboard_topics", topicCount, topicInterval), 7, "grid_stat "+topicColour, "", "", p.GetTmplPhrase("panel_dashboard_topics_desc"))
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addElem("dash-totonlineperday", "", p.GetTmplPhrasef("panel_dashboard_online_day"), 8, "grid_stat stat_disabled", "", "", p.GetTmplPhrase("panel_dashboard_coming_soon") /*, "The people online over the last 24 hours"*/)
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addElem("dash-searches", "", p.GetTmplPhrasef("panel_dashboard_searches_day"), 9, "grid_stat stat_disabled", "", "", p.GetTmplPhrase("panel_dashboard_coming_soon") /*"The number of searches over the last 7 days"*/)
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addElem("dash-newusers", "", p.GetTmplPhrasef("panel_dashboard_new_users", newUserCount, newUserInterval), 10, "grid_stat", "", "", p.GetTmplPhrasef("panel_dashboard_new_users_desc"))
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addElem("dash-reports", "", p.GetTmplPhrasef("panel_dashboard_reports", reportCount, reportInterval), 11, "grid_stat", "", "", p.GetTmplPhrasef("panel_dashboard_reports_desc"))
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if false {
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addElem("dash-minperuser", "", "?? minutes / user / week", 12, "grid_stat stat_disabled", "", "", p.GetTmplPhrase("panel_dashboard_coming_soon") /*"The average number of number of minutes spent by each active user over the last 7 days"*/)
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addElem("dash-visitorsperweek", "", "?? visitors / week", 13, "grid_stat stat_disabled", "", "", p.GetTmplPhrase("panel_dashboard_coming_soon") /*"The number of unique visitors we've had over the last 7 days"*/)
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addElem("dash-postsperuser", "", "?? posts / user / week", 14, "grid_stat stat_disabled", "", "", p.GetTmplPhrase("panel_dashboard_coming_soon") /*"The average number of posts made by each active user over the past week"*/)
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}
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return renderTemplate("panel", w, r, basePage.Header, c.Panel{basePage, "panel_dashboard_right", "", "panel_dashboard", c.DashGrids{grid1, gridElements}})
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}
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type dirSize struct {
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Size int
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Time time.Time
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}
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func init() {
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cachedDirSize.Store(dirSize{0, time.Now()})
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}
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var cachedDirSize atomic.Value
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var dstMu sync.Mutex
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var dstMuGuess = 0
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func startDirSizeTask() {
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if dstMuGuess == 1 {
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return
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}
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dstMu.Lock()
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dstMuGuess = 1
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go func() {
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defer func() {
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dstMuGuess = 0
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dstMu.Unlock()
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}()
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dDirSize, err := c.DirSize(".")
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if err != nil {
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c.LogWarning(err)
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}
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cachedDirSize.Store(dirSize{dDirSize, time.Now()})
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}()
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}
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func getDirSize() dirSize {
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return cachedDirSize.Load().(dirSize)
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}
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type StatsDiskJson struct {
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Total string `json:"total"`
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}
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func StatsDisk(w http.ResponseWriter, r *http.Request, user *c.User) c.RouteError {
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dirSize := getDirSize()
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dirFloat, unit := c.ConvertByteUnit(float64(dirSize.Size))
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u := p.GetTmplPhrasef("unit", dirFloat, unit)
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oBytes, err := json.Marshal(StatsDiskJson{u})
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if err != nil {
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return c.InternalErrorJS(err, w, r)
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}
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w.Write(oBytes)
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return nil
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}
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