/*
-SGBlog -- Git-based CGI/inetd blogging/phlogging engine
-Copyright (C) 2020 Sergey Matveev <stargrave@stargrave.org>
+SGBlog -- Git-backed CGI/inetd blogging/phlogging engine
+Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
import (
"bufio"
- "bytes"
"encoding/json"
"errors"
"fmt"
"os"
"strconv"
"strings"
- "time"
+ "text/template"
+ "github.com/go-git/go-git/v5"
+ "github.com/go-git/go-git/v5/plumbing"
+ "github.com/go-git/go-git/v5/plumbing/object"
"github.com/hjson/hjson-go"
"go.stargrave.org/sgblog"
- "gopkg.in/src-d/go-git.v4"
- "gopkg.in/src-d/go-git.v4/plumbing"
)
-const CRLF = "\r\n"
+const (
+ TmplGopherMenu = `{{$CR := printf "\r"}}{{$CRLF := printf "\r\n" -}}
+{{- define "domainPort" }} {{.GopherDomain}} 70{{end}}{{$Cfg := .Cfg -}}
+i{{.Cfg.Title}} {{if .Topic}}(topic: {{.Topic}}) {{end}}({{.Offset}}-{{.OffsetNext}}) err{{template "domainPort" .Cfg}}{{$CRLF -}}
+{{- if .Cfg.AboutURL}}hAbout URL:{{.Cfg.AboutURL}}{{template "domainPort" .Cfg}}{{$CRLF}}{{end -}}
+{{- if .Offset}}1Prev {{if .Topic}}{{.Topic}}/{{end}}offset/{{.OffsetPrev}}{{template "domainPort" .Cfg}}{{$CRLF}}{{end -}}
+{{- if not .LogEnded}}1Next {{if .Topic}}{{.Topic}}/{{end}}offset/{{.OffsetNext}}{{template "domainPort" .Cfg}}{{$CRLF}}{{end -}}
+{{- $datePrev := "0001-01-01" -}}
+{{- range .Entries -}}
+{{- $dateCur := .Commit.Author.When.Format "2006-01-02" -}}
+{{- if ne $dateCur $datePrev}}{{$datePrev = $dateCur}}
+i{{$dateCur}} err{{template "domainPort" $Cfg}}{{$CR}}{{end}}
+0[{{.Commit.Author.When.Format "15:04"}}] {{.Title}} ({{.LinesNum}}L){{with .CommentsNum}} ({{.}}C){{end}}{{if .Topics}}{{range .Topics}} {{.}}{{end}}{{end}} /{{.Commit.Hash.String}}{{template "domainPort" $Cfg}}{{$CR}}{{end}}
+{{range .Topics}}
+1Topic: {{.}} {{.}}/offset/0{{template "domainPort" $Cfg}}{{$CR}}{{end}}
+iGenerated by: SGBlog {{.Version}} err{{template "domainPort" .Cfg}}{{$CR}}
+.{{$CRLF}}`
+ TmplGopherEntry = `What: {{.Commit.Hash.String}}
+When: {{.When}}
+------------------------------------------------------------------------
+{{if .Topics}}Topics:{{range .Topics}} {{.}}{{end}}{{end}}
+------------------------------------------------------------------------
+{{.Commit.Message -}}
+{{- if .Note}}
+------------------------------------------------------------------------
+Note:
+{{.Note}}{{end -}}
+{{- if .Cfg.CommentsEmail}}
+------------------------------------------------------------------------
+leave comment: mailto:{{.Cfg.CommentsEmail}}?subject={{.Commit.Hash.String}}
+{{end}}{{range $idx, $comment := .Comments}}
+------------------------------------------------------------------------
+comment {{$idx}}:
+{{$comment}}
+{{end}}
+------------------------------------------------------------------------
+Generated by: SGBlog {{.Version}}
+`
+)
-var DashLine = strings.Repeat("-", 72)
+type TableMenuEntry struct {
+ Commit *object.Commit
+ Title string
+ LinesNum int
+ CommentsNum int
+ Topics []string
+}
func serveGopher() {
cfgPath := os.Args[2]
if selector == "" {
selector = "offset/0"
}
- if strings.HasPrefix(selector, "offset/") {
- offset, err := strconv.Atoi(selector[len("offset/"):])
+ selectorParts := strings.Split(selector, "/")
+ if strings.HasPrefix(selector, "URL:") {
+ selector = selector[len("URL:"):]
+ fmt.Printf(`<html>
+<head>
+ <meta http-equiv="Refresh" content="1; url=%s" />
+ <title>Redirect to non-gopher URL</title>
+</head>
+<body>
+Redirecting to <a href="%s">%s</a>...
+</body>
+</html>
+`, selector, selector, selector)
+ } else if sha1DigestRe.MatchString(selector) {
+ commit, err := repo.CommitObject(plumbing.NewHash(selector[1:]))
+ if err != nil {
+ log.Fatalln(err)
+ }
+ tmpl := template.Must(template.New("entry").Parse(TmplGopherEntry))
+ err = tmpl.Execute(os.Stdout, struct {
+ Commit *object.Commit
+ When string
+ Cfg *Cfg
+ Note string
+ Comments []string
+ Topics []string
+ Version string
+ }{
+ Commit: commit,
+ When: commit.Author.When.Format(sgblog.WhenFmt),
+ Cfg: cfg,
+ Note: string(getNote(notesTree, commit.Hash)),
+ Comments: parseComments(getNote(commentsTree, commit.Hash)),
+ Topics: parseTopics(getNote(topicsTree, commit.Hash)),
+ Version: sgblog.Version,
+ })
+ if err != nil {
+ log.Fatalln(err)
+ }
+ } else if selectorParts[len(selectorParts)-2] == "offset" {
+ offset, err := strconv.Atoi(selectorParts[len(selectorParts)-1])
if err != nil {
log.Fatalln(err)
}
if err != nil {
log.Fatalln(err)
}
- commitN := 0
- for i := 0; i < offset; i++ {
- if _, err = repoLog.Next(); err != nil {
- break
+ topicsCache, err := getTopicsCache(cfg, repoLog)
+ if err != nil {
+ log.Fatalln(err)
+ }
+ repoLog, err = repo.Log(&git.LogOptions{From: *headHash})
+ if err != nil {
+ log.Fatalln(err)
+ }
+
+ var topic string
+ if len(selectorParts) == 3 {
+ topic = selectorParts[0]
+ }
+ var commits CommitIterNext
+ if topic == "" {
+ for i := 0; i < offset; i++ {
+ if _, err = repoLog.Next(); err != nil {
+ break
+ }
+ }
+ commits = repoLog
+ } else {
+ hashes := topicsCache[topic]
+ if hashes == nil {
+ log.Fatalln(errors.New("no posts with that topic"))
}
- commitN++
+ if len(hashes) > offset {
+ hashes = hashes[offset:]
+ }
+ commits = &HashesIter{hashes}
}
logEnded := false
- var menu bytes.Buffer
- var yearPrev int
- var monthPrev time.Month
- var dayPrev int
+ entries := make([]TableMenuEntry, 0, PageEntries)
for i := 0; i < PageEntries; i++ {
- commit, err := repoLog.Next()
+ commit, err := commits.Next()
if err != nil {
logEnded = true
break
}
- yearCur, monthCur, dayCur := commit.Author.When.Date()
- if dayCur != dayPrev || monthCur != monthPrev || yearCur != yearPrev {
- menu.WriteString(fmt.Sprintf(
- "i%04d-%02d-%02d\tnil\t%s\t%d%s",
- yearCur, monthCur, dayCur,
- cfg.GopherDomain, 70, CRLF,
- ))
- yearPrev, monthPrev, dayPrev = yearCur, monthCur, dayCur
- }
- commitN++
lines := msgSplit(commit.Message)
- var commentsValue string
- if l := len(parseComments(getNote(commentsTree, commit.Hash))); l > 0 {
- commentsValue = fmt.Sprintf(" (%dC)", l)
- }
- menu.WriteString(fmt.Sprintf(
- "0[%02d:%02d] %s (%dL)%s\t/%s\t%s\t%d%s",
- commit.Author.When.Hour(),
- commit.Author.When.Minute(),
- lines[0],
- len(lines)-2,
- commentsValue,
- commit.Hash.String(),
- cfg.GopherDomain, 70, CRLF,
- ))
+ entries = append(entries, TableMenuEntry{
+ Commit: commit,
+ Title: lines[0],
+ LinesNum: len(lines) - 2,
+ CommentsNum: len(parseComments(getNote(commentsTree, commit.Hash))),
+ Topics: parseTopics(getNote(topicsTree, commit.Hash)),
+ })
}
-
- fmt.Printf(
- "i%s (%d-%d)\tnil\t%s\t%d%s",
- cfg.Title,
- offset,
- offset+PageEntries,
- cfg.GopherDomain, 70, CRLF,
- )
- if cfg.AboutURL != "" {
- fmt.Printf(
- "hAbout\tURL:%s\t%s\t%d%s",
- cfg.AboutURL,
- cfg.GopherDomain, 70, CRLF,
- )
- }
- if offset > 0 {
- offsetPrev := offset - PageEntries
- if offsetPrev < 0 {
- offsetPrev = 0
- }
- fmt.Printf(
- "1Prev\toffset/%d\t%s\t%d%s",
- offsetPrev,
- cfg.GopherDomain, 70, CRLF,
- )
+ tmpl := template.Must(template.New("menu").Parse(TmplGopherMenu))
+ offsetPrev := offset - PageEntries
+ if offsetPrev < 0 {
+ offsetPrev = 0
}
- if !logEnded {
- fmt.Printf(
- "1Next\toffset/%d\t%s\t%d%s",
- offset+PageEntries,
- cfg.GopherDomain, 70, CRLF,
- )
- }
- fmt.Print(menu.String())
- fmt.Printf(
- "iGenerated by: SGBlog %s\terr\t%s\t%d%s",
- sgblog.Version,
- cfg.GopherDomain, 70, CRLF,
- )
- fmt.Print("." + CRLF)
- } else if strings.HasPrefix(selector, "URL:") {
- selector = selector[len("URL:"):]
- fmt.Printf(`<html>
-<head>
- <meta http-equiv="Refresh" content="1; url=%s" />
- <title>Redirect to non-gopher URL</title>
-</head>
-<body>
-Redirecting to <a href="%s">%s</a>...
-</body>
-</html>
-`, selector, selector, selector)
- } else if sha1DigestRe.MatchString(selector) {
- commit, err := repo.CommitObject(plumbing.NewHash(selector[1:]))
+ err = tmpl.Execute(os.Stdout, struct {
+ Cfg *Cfg
+ Topic string
+ Offset int
+ OffsetPrev int
+ OffsetNext int
+ LogEnded bool
+ Entries []TableMenuEntry
+ Topics []string
+ Version string
+ }{
+ Cfg: cfg,
+ Topic: topic,
+ Offset: offset,
+ OffsetPrev: offsetPrev,
+ OffsetNext: offset + PageEntries,
+ LogEnded: logEnded,
+ Entries: entries,
+ Topics: topicsCache.Topics(),
+ Version: sgblog.Version,
+ })
if err != nil {
log.Fatalln(err)
}
- fmt.Printf(
- "What: %s\nWhen: %s\n%s\n%s",
- commit.Hash.String(),
- commit.Author.When.Format(sgblog.WhenFmt),
- DashLine,
- commit.Message,
- )
- notesRaw := getNote(notesTree, commit.Hash)
- if len(notesRaw) > 0 {
- fmt.Printf("%s\nNote:\n%s\n", DashLine, string(notesRaw))
- }
- for i, comment := range parseComments(getNote(commentsTree, commit.Hash)) {
- fmt.Printf("%s\ncomment %d:\n%s\n", DashLine, i, comment)
- }
- fmt.Printf("%s\nGenerated by: SGBlog %s\n", DashLine, sgblog.Version)
} else {
log.Fatalln(errors.New("unknown selector"))
}