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package main
import (
"database/sql"
"errors"
"fmt"
"html/template"
"net/http"
"strconv"
"strings"
"time"
)
type Issue struct {
ID int64
Number int64
Author User
Title string
Body string
State string
Created time.Time
Updated time.Time
Comments int
}
func (s *Store) CreateIssue(repo Repo, author User, title, body string) (Issue, error) {
title = strings.TrimSpace(title)
if title == "" || len(title) > 200 {
return Issue{}, errors.New("Title is required and at most 200 characters")
}
if len(body) > 20000 {
return Issue{}, errors.New("Body is too long")
}
now := time.Now().Unix()
tx, err := s.db.Begin()
if err != nil {
return Issue{}, err
}
defer tx.Rollback()
var number int64
tx.QueryRow(`select coalesce(max(number), 0) + 1 from issues where repo = ?`, repo.ID).Scan(&number)
res, err := tx.Exec(`insert into issues(repo, number, author, title, body, created, updated) values (?, ?, ?, ?, ?, ?, ?)`, repo.ID, number, author.ID, title, body, now, now)
if err != nil {
return Issue{}, err
}
if err := tx.Commit(); err != nil {
return Issue{}, err
}
id, _ := res.LastInsertId()
return Issue{ID: id, Number: number, Author: author, Title: title, Body: body, State: "open"}, nil
}
const issueColumns = `i.id, i.number, i.title, i.body, i.state, i.created, i.updated, (select count(*) from issue_comments c where c.issue = i.id), u.id, u.name, u.created from issues i join users u on u.id = i.author`
func scanIssues(rows *sql.Rows) ([]Issue, error) {
defer rows.Close()
var out []Issue
for rows.Next() {
var i Issue
var created, updated, uCreated int64
if err := rows.Scan(&i.ID, &i.Number, &i.Title, &i.Body, &i.State, &created, &updated, &i.Comments, &i.Author.ID, &i.Author.Name, &uCreated); err != nil {
return nil, err
}
i.Created, i.Updated, i.Author.Created = time.Unix(created, 0), time.Unix(updated, 0), time.Unix(uCreated, 0)
out = append(out, i)
}
return out, rows.Err()
}
func (s *Store) Issues(repo int64, state string) ([]Issue, error) {
rows, err := s.db.Query(`select `+issueColumns+` where i.repo = ? and (? = '' or i.state = ?) order by i.updated desc`, repo, state, state)
if err != nil {
return nil, err
}
return scanIssues(rows)
}
func (s *Store) Issue(repo, number int64) (Issue, error) {
rows, err := s.db.Query(`select `+issueColumns+` where i.repo = ? and i.number = ?`, repo, number)
if err != nil {
return Issue{}, err
}
issues, err := scanIssues(rows)
if err != nil || len(issues) == 0 {
return Issue{}, ErrNotFound
}
return issues[0], nil
}
func (s *Store) OpenIssueCount(repo int64) int {
var n int
s.db.QueryRow(`select count(*) from issues where repo = ? and state = 'open'`, repo).Scan(&n)
return n
}
func (s *Store) SetIssueState(id int64, state string) {
s.db.Exec(`update issues set state = ?, updated = ? where id = ?`, state, time.Now().Unix(), id)
}
func (s *Store) AddIssueComment(issue int64, author User, body string) error {
body = strings.TrimSpace(body)
if body == "" || len(body) > 20000 {
return errors.New("Comment is empty or too long")
}
_, err := s.db.Exec(`insert into issue_comments(issue, author, body, created) values (?, ?, ?, ?)`, issue, author.ID, body, time.Now().Unix())
s.db.Exec(`update issues set updated = ? where id = ?`, time.Now().Unix(), issue)
return err
}
func (s *Store) IssueComments(issue int64) ([]Comment, error) {
rows, err := s.db.Query(`select c.id, c.body, c.created, u.id, u.name, u.created from issue_comments c join users u on u.id = c.author where c.issue = ? order by c.id`, issue)
if err != nil {
return nil, err
}
defer rows.Close()
var out []Comment
for rows.Next() {
var c Comment
var created, uCreated int64
if err := rows.Scan(&c.ID, &c.Body, &created, &c.Author.ID, &c.Author.Name, &uCreated); err != nil {
return nil, err
}
c.Created, c.Author.Created = time.Unix(created, 0), time.Unix(uCreated, 0)
out = append(out, c)
}
return out, rows.Err()
}
func (s *Server) issues(w http.ResponseWriter, r *http.Request, repo Repo) {
rp, _, err := s.repoPage(r, repo, "")
if err != nil {
s.fail(w, r, 404, "No such ref")
return
}
rp.Tab = "issues"
state := r.URL.Query().Get("state")
if state == "" {
state = "open"
}
if state == "all" {
state = ""
}
issues, err := s.store.Issues(repo.ID, state)
if err != nil {
s.fail(w, r, 500, err.Error())
return
}
labels, _ := s.store.Labels(repo.ID)
filter, _ := strconv.ParseInt(r.URL.Query().Get("label"), 10, 64)
if filter != 0 {
keep := s.store.ItemsWithLabel("issue", filter)
var filtered []Issue
for _, i := range issues {
if keep[i.ID] {
filtered = append(filtered, i)
}
}
issues = filtered
}
itemLabels := map[int64][]Label{}
for _, i := range issues {
itemLabels[i.ID] = s.store.ItemLabels("issue", i.ID)
}
s.render(w, r, "issues", page{Title: repo.Path() + " issues", Data: map[string]any{"Page": rp, "Issues": issues, "State": r.URL.Query().Get("state"), "Labels": labels, "Filter": filter, "ItemLabels": itemLabels}})
}
func (s *Server) newIssue(w http.ResponseWriter, r *http.Request, repo Repo) {
rp, _, _ := s.repoPage(r, repo, "")
rp.Tab = "issues"
if rp.User == nil {
http.Redirect(w, r, "/login", http.StatusSeeOther)
return
}
s.render(w, r, "newissue", page{Title: "New issue", Data: map[string]any{"Page": rp}})
}
func (s *Server) createIssue(w http.ResponseWriter, r *http.Request, repo Repo) {
rp, _, _ := s.repoPage(r, repo, "")
rp.Tab = "issues"
user := rp.User
if user == nil {
http.Redirect(w, r, "/login", http.StatusSeeOther)
return
}
if repo.Archived {
s.fail(w, r, 403, "This repository is archived")
return
}
issue, err := s.store.CreateIssue(repo, *user, r.FormValue("title"), strings.TrimSpace(r.FormValue("body")))
if err != nil {
w.WriteHeader(400)
s.render(w, r, "newissue", page{Title: "New issue", Error: err.Error(), Data: map[string]any{"Page": rp, "IssueTitle": r.FormValue("title"), "Body": r.FormValue("body")}})
return
}
s.store.Notify(s.store.Watchers(repo, "issue", issue.ID, issue.Author.ID), *user, repo, "issue", issue.Number, issue.Title, "opened")
if repo.Owner.ID != user.ID {
s.notify(s.store.VerifiedEmail(repo.Owner.ID), fmt.Sprintf("[%s] issue #%d: %s", repo.Path(), issue.Number, issue.Title),
fmt.Sprintf("~%s opened an issue on %s.\n\n%s\n\nhttps://%s/%s/issues/%d\n", user.Name, repo.Path(), issue.Body, s.host, repo.Path(), issue.Number))
}
http.Redirect(w, r, fmt.Sprintf("/%s/issues/%d", repo.Path(), issue.Number), http.StatusSeeOther)
}
func (s *Server) issue(w http.ResponseWriter, r *http.Request, repo Repo, rest string) {
rp, _, _ := s.repoPage(r, repo, "")
rp.Tab = "issues"
numStr, action, _ := strings.Cut(rest, "/")
number, err := strconv.ParseInt(numStr, 10, 64)
if err != nil {
s.fail(w, r, 404, "No such issue")
return
}
issue, err := s.store.Issue(repo.ID, number)
if err != nil {
s.fail(w, r, 404, "No such issue")
return
}
user := rp.User
canManage := user != nil && (rp.Owner || user.ID == issue.Author.ID)
if user != nil && r.Method == "GET" {
s.store.ReadThread(user.ID, repo.ID, "issue", issue.Number)
}
back := fmt.Sprintf("/%s/issues/%d", repo.Path(), issue.Number)
if r.Method == "POST" {
if user == nil {
http.Redirect(w, r, "/login", http.StatusSeeOther)
return
}
subject := fmt.Sprintf("[%s] issue #%d: %s", repo.Path(), issue.Number, issue.Title)
link := fmt.Sprintf("https://%s%s", s.host, back)
switch action {
case "comment":
if repo.Archived {
s.fail(w, r, 403, "This repository is archived")
return
}
if err := s.store.AddIssueComment(issue.ID, *user, r.FormValue("body")); err != nil {
http.Redirect(w, r, back+"?error="+template.URLQueryEscaper(err.Error()), http.StatusSeeOther)
return
}
s.store.Notify(s.store.Watchers(repo, "issue", issue.ID, issue.Author.ID), *user, repo, "issue", issue.Number, issue.Title, "commented on")
for _, id := range []int64{issue.Author.ID, repo.Owner.ID} {
if id != user.ID {
s.notify(s.store.VerifiedEmail(id), subject, fmt.Sprintf("~%s commented on issue #%d.\n\n%s\n\n%s\n", user.Name, issue.Number, r.FormValue("body"), link))
}
}
case "meta":
s.setMeta(w, r, repo, "issue", issue.ID, back)
return
case "close":
if canManage {
s.store.SetIssueState(issue.ID, "closed")
s.store.Notify(s.store.Watchers(repo, "issue", issue.ID, issue.Author.ID), *user, repo, "issue", issue.Number, issue.Title, "closed")
}
case "reopen":
if canManage {
s.store.SetIssueState(issue.ID, "open")
s.store.Notify(s.store.Watchers(repo, "issue", issue.ID, issue.Author.ID), *user, repo, "issue", issue.Number, issue.Title, "reopened")
}
default:
s.fail(w, r, 404, "Page not found")
return
}
http.Redirect(w, r, back, http.StatusSeeOther)
return
}
comments, _ := s.store.IssueComments(issue.ID)
rendered := make([]map[string]any, len(comments))
for i, c := range comments {
rendered[i] = map[string]any{"Comment": c, "Body": s.renderMarkdown([]byte(c.Body))}
}
body := s.renderMarkdown([]byte(issue.Body))
s.render(w, r, "issue", page{Title: fmt.Sprintf("#%d %s", issue.Number, issue.Title), Error: r.URL.Query().Get("error"), Math: hasMath(body),
Data: map[string]any{"Page": rp, "Issue": issue, "Body": body, "Comments": rendered, "CanManage": canManage, "Labels": s.store.ItemLabels("issue", issue.ID), "Assignees": s.store.Assignees("issue", issue.ID), "AllLabels": func() []Label {
if !rp.Owner {
return nil
}
l, _ := s.store.Labels(repo.ID)
return l
}(), "Assignable": func() []User {
if !rp.Owner {
return nil
}
return s.store.Assignable(repo)
}()}})
}
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