1package routes
  2
  3import (
  4	"fmt"
  5	"html/template"
  6	"log"
  7	"net/http"
  8	"os"
  9	"path/filepath"
 10	"sort"
 11	"time"
 12
 13	"git.icyphox.sh/legit/config"
 14	"git.icyphox.sh/legit/git"
 15	"github.com/alexedwards/flow"
 16	"github.com/dustin/go-humanize"
 17	"github.com/microcosm-cc/bluemonday"
 18	"github.com/russross/blackfriday/v2"
 19)
 20
 21type deps struct {
 22	c *config.Config
 23}
 24
 25func (d *deps) Index(w http.ResponseWriter, r *http.Request) {
 26	dirs, err := os.ReadDir(d.c.Repo.ScanPath)
 27	if err != nil {
 28		d.Write500(w)
 29		log.Printf("reading scan path: %s", err)
 30		return
 31	}
 32
 33	type info struct {
 34		Name, Desc, Idle string
 35		d                time.Time
 36	}
 37
 38	infos := []info{}
 39
 40	for _, dir := range dirs {
 41		if d.isIgnored(dir.Name()) {
 42			continue
 43		}
 44
 45		path := filepath.Join(d.c.Repo.ScanPath, dir.Name())
 46		gr, err := git.Open(path, "")
 47		if err != nil {
 48			continue
 49		}
 50
 51		c, err := gr.LastCommit()
 52		if err != nil {
 53			d.Write500(w)
 54			log.Println(err)
 55			return
 56		}
 57
 58		desc := getDescription(path)
 59
 60		infos = append(infos, info{
 61			Name: dir.Name(),
 62			Desc: desc,
 63			Idle: humanize.Time(c.Author.When),
 64			d:    c.Author.When,
 65		})
 66	}
 67
 68	sort.Slice(infos, func(i, j int) bool {
 69		return infos[j].d.Before(infos[i].d)
 70	})
 71
 72	tpath := filepath.Join(d.c.Dirs.Templates, "*")
 73	t := template.Must(template.ParseGlob(tpath))
 74
 75	data := make(map[string]interface{})
 76	data["meta"] = d.c.Meta
 77	data["info"] = infos
 78
 79	if err := t.ExecuteTemplate(w, "index", data); err != nil {
 80		log.Println(err)
 81		return
 82	}
 83}
 84
 85func (d *deps) RepoIndex(w http.ResponseWriter, r *http.Request) {
 86	name := flow.Param(r.Context(), "name")
 87	if d.isIgnored(name) {
 88		d.Write404(w)
 89		return
 90	}
 91	name = filepath.Clean(name)
 92	path := filepath.Join(d.c.Repo.ScanPath, name)
 93
 94	gr, err := git.Open(path, "")
 95	if err != nil {
 96		d.Write404(w)
 97		return
 98	}
 99
100	commits, err := gr.Commits()
101	if err != nil {
102		d.Write500(w)
103		log.Println(err)
104		return
105	}
106
107	var readmeContent template.HTML
108	for _, readme := range d.c.Repo.Readme {
109		ext := filepath.Ext(readme)
110		content, _ := gr.FileContent(readme)
111		if len(content) > 0 {
112			switch ext {
113			case ".md", ".mkd", ".markdown":
114				unsafe := blackfriday.Run(
115					[]byte(content),
116					blackfriday.WithExtensions(blackfriday.CommonExtensions),
117				)
118				html := bluemonday.UGCPolicy().SanitizeBytes(unsafe)
119				readmeContent = template.HTML(html)
120			default:
121				readmeContent = template.HTML(
122					fmt.Sprintf(`<pre>%s</pre>`, content),
123				)
124			}
125			break
126		}
127	}
128
129	if readmeContent == "" {
130		log.Printf("no readme found for %s", name)
131	}
132
133	mainBranch, err := gr.FindMainBranch(d.c.Repo.MainBranch)
134	if err != nil {
135		d.Write500(w)
136		log.Println(err)
137		return
138	}
139
140	tpath := filepath.Join(d.c.Dirs.Templates, "*")
141	t := template.Must(template.ParseGlob(tpath))
142
143	if len(commits) >= 3 {
144		commits = commits[:3]
145	}
146
147	data := make(map[string]any)
148	data["name"] = name
149	data["ref"] = mainBranch
150	data["readme"] = readmeContent
151	data["commits"] = commits
152	data["desc"] = getDescription(path)
153	data["servername"] = d.c.Server.Name
154
155	if err := t.ExecuteTemplate(w, "repo", data); err != nil {
156		log.Println(err)
157		return
158	}
159
160	return
161}
162
163func (d *deps) RepoTree(w http.ResponseWriter, r *http.Request) {
164	name := flow.Param(r.Context(), "name")
165	if d.isIgnored(name) {
166		d.Write404(w)
167		return
168	}
169	treePath := flow.Param(r.Context(), "...")
170	ref := flow.Param(r.Context(), "ref")
171
172	name = filepath.Clean(name)
173	path := filepath.Join(d.c.Repo.ScanPath, name)
174	gr, err := git.Open(path, ref)
175	if err != nil {
176		d.Write404(w)
177		return
178	}
179
180	files, err := gr.FileTree(treePath)
181	if err != nil {
182		d.Write500(w)
183		log.Println(err)
184		return
185	}
186
187	data := make(map[string]any)
188	data["name"] = name
189	data["ref"] = ref
190	data["parent"] = treePath
191	data["desc"] = getDescription(path)
192
193	d.listFiles(files, data, w)
194	return
195}
196
197func (d *deps) FileContent(w http.ResponseWriter, r *http.Request) {
198	name := flow.Param(r.Context(), "name")
199	if d.isIgnored(name) {
200		d.Write404(w)
201		return
202	}
203	treePath := flow.Param(r.Context(), "...")
204	ref := flow.Param(r.Context(), "ref")
205
206	name = filepath.Clean(name)
207	path := filepath.Join(d.c.Repo.ScanPath, name)
208	gr, err := git.Open(path, ref)
209	if err != nil {
210		d.Write404(w)
211		return
212	}
213
214	contents, err := gr.FileContent(treePath)
215	data := make(map[string]any)
216	data["name"] = name
217	data["ref"] = ref
218	data["desc"] = getDescription(path)
219	data["path"] = treePath
220
221	d.showFile(contents, data, w)
222	return
223}
224
225func (d *deps) Log(w http.ResponseWriter, r *http.Request) {
226	name := flow.Param(r.Context(), "name")
227	if d.isIgnored(name) {
228		d.Write404(w)
229		return
230	}
231	ref := flow.Param(r.Context(), "ref")
232
233	path := filepath.Join(d.c.Repo.ScanPath, name)
234	gr, err := git.Open(path, ref)
235	if err != nil {
236		d.Write404(w)
237		return
238	}
239
240	commits, err := gr.Commits()
241	if err != nil {
242		d.Write500(w)
243		log.Println(err)
244		return
245	}
246
247	tpath := filepath.Join(d.c.Dirs.Templates, "*")
248	t := template.Must(template.ParseGlob(tpath))
249
250	data := make(map[string]interface{})
251	data["commits"] = commits
252	data["meta"] = d.c.Meta
253	data["name"] = name
254	data["ref"] = ref
255	data["desc"] = getDescription(path)
256
257	if err := t.ExecuteTemplate(w, "log", data); err != nil {
258		log.Println(err)
259		return
260	}
261}
262
263func (d *deps) Diff(w http.ResponseWriter, r *http.Request) {
264	name := flow.Param(r.Context(), "name")
265	if d.isIgnored(name) {
266		d.Write404(w)
267		return
268	}
269	ref := flow.Param(r.Context(), "ref")
270
271	path := filepath.Join(d.c.Repo.ScanPath, name)
272	gr, err := git.Open(path, ref)
273	if err != nil {
274		d.Write404(w)
275		return
276	}
277
278	diff, err := gr.Diff()
279	if err != nil {
280		d.Write500(w)
281		log.Println(err)
282		return
283	}
284
285	tpath := filepath.Join(d.c.Dirs.Templates, "*")
286	t := template.Must(template.ParseGlob(tpath))
287
288	data := make(map[string]interface{})
289
290	data["commit"] = diff.Commit
291	data["stat"] = diff.Stat
292	data["diff"] = diff.Diff
293	data["meta"] = d.c.Meta
294	data["name"] = name
295	data["ref"] = ref
296	data["desc"] = getDescription(path)
297
298	if err := t.ExecuteTemplate(w, "commit", data); err != nil {
299		log.Println(err)
300		return
301	}
302}
303
304func (d *deps) Refs(w http.ResponseWriter, r *http.Request) {
305	name := flow.Param(r.Context(), "name")
306	if d.isIgnored(name) {
307		d.Write404(w)
308		return
309	}
310
311	path := filepath.Join(d.c.Repo.ScanPath, name)
312	gr, err := git.Open(path, "")
313	if err != nil {
314		d.Write404(w)
315		return
316	}
317
318	tags, err := gr.Tags()
319	if err != nil {
320		// Non-fatal, we *should* have at least one branch to show.
321		log.Println(err)
322	}
323
324	branches, err := gr.Branches()
325	if err != nil {
326		log.Println(err)
327		d.Write500(w)
328		return
329	}
330
331	tpath := filepath.Join(d.c.Dirs.Templates, "*")
332	t := template.Must(template.ParseGlob(tpath))
333
334	data := make(map[string]interface{})
335
336	data["meta"] = d.c.Meta
337	data["name"] = name
338	data["branches"] = branches
339	data["tags"] = tags
340	data["desc"] = getDescription(path)
341
342	if err := t.ExecuteTemplate(w, "refs", data); err != nil {
343		log.Println(err)
344		return
345	}
346}
347
348func (d *deps) ServeStatic(w http.ResponseWriter, r *http.Request) {
349	f := flow.Param(r.Context(), "file")
350	f = filepath.Clean(filepath.Join(d.c.Dirs.Static, f))
351
352	http.ServeFile(w, r, f)
353}