internal/httpd/page.go

 1package httpd
 2
 3import (
 4	"net/http"
 5
 6	"gitbay.org/gitbay/internal/policy"
 7	"gitbay.org/gitbay/internal/store"
 8)
 9
10// railRepo is one pinned repository in the rail.
11type railRepo struct {
12	Owner string
13	Name  string
14}
15
16// railItem is one merge request in the rail's review queue.
17type railItem struct {
18	RepoPath string
19	Number   int64
20	Title    string
21}
22
23// rail is the cross-repo state in the left rail: the repositories and the
24// review work a viewer moves between. A repo's own navigation lives in its
25// header tabs, not here — the rail holds only what changes as you switch
26// context, which is what earns it the width.
27type rail struct {
28	Pinned  []railRepo
29	Reviews []railItem
30}
31
32// Empty reports whether the rail has nothing to show beyond the global
33// links, so the template can skip its group headings.
34func (r rail) Empty() bool { return len(r.Pinned) == 0 && len(r.Reviews) == 0 }
35
36// basePage is what the layout needs on every page, repo or not. Page
37// structs embed it so the rail and the site name are always in scope.
38type basePage struct {
39	// Site is the instance's display name; Host is the name a command or
40	// URL must use. Anything copy-pasteable takes Host.
41	Site   string
42	Host   string
43	Viewer string
44	Rail   rail
45}
46
47// base builds the layout-wide data for a request that has not already
48// resolved a viewer.
49func (s *Server) base(r *http.Request) basePage {
50	if s.cfg.Web.Mode != "accounts" {
51		return basePage{Site: s.siteName(), Host: s.cfg.SiteHost()}
52	}
53	return s.baseFor(s.viewer(r))
54}
55
56// baseFor is base for a handler that already holds the viewer, so the
57// session lookup is not repeated.
58func (s *Server) baseFor(viewer store.User) basePage {
59	b := basePage{Site: s.siteName(), Host: s.cfg.SiteHost()}
60	if viewer.ID == 0 {
61		return b
62	}
63	b.Viewer = viewer.Username
64	b.Rail = s.railFor(viewer)
65	return b
66}
67
68// railFor collects the viewer's pinned repositories and review queue,
69// dropping anything they may no longer read.
70func (s *Server) railFor(viewer store.User) rail {
71	var rl rail
72	pinned, _ := s.st.PinnedRepos(viewer.ID)
73	for _, rp := range pinned {
74		grant, _ := s.st.AccessRole(rp.ID, viewer.ID)
75		if policy.CanRead(viewer, rp, grant) {
76			rl.Pinned = append(rl.Pinned, railRepo{Owner: rp.OwnerName, Name: rp.Name})
77		}
78	}
79	queue, _ := s.st.ReviewQueue(viewer.ID)
80	for _, q := range queue {
81		rl.Reviews = append(rl.Reviews, railItem{
82			RepoPath: q.RepoPath,
83			Number:   q.Number,
84			Title:    q.Title,
85		})
86	}
87	return rl
88}