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-rw-r--r--gopherproxy/gopherproxy.go203
1 files changed, 103 insertions, 100 deletions
diff --git a/gopherproxy/gopherproxy.go b/gopherproxy/gopherproxy.go
index 6556845..4a7d972 100644
--- a/gopherproxy/gopherproxy.go
+++ b/gopherproxy/gopherproxy.go
@@ -49,6 +49,16 @@ type AssetList struct {
49 PropFontW2 string 49 PropFontW2 string
50} 50}
51 51
52type TemplateVariables struct {
53 Title string
54 URI string
55 Assets AssetList
56 RawText string
57 Lines []Item
58 Error bool
59 Protocol string
60}
61
52func resolveURI(uri string, baseURL *url.URL) (resolvedURI string) { 62func resolveURI(uri string, baseURL *url.URL) (resolvedURI string) {
53 if strings.HasPrefix(uri, "//") { 63 if strings.HasPrefix(uri, "//") {
54 resolvedURI = "/gemini/" + strings.TrimPrefix(uri, "//") 64 resolvedURI = "/gemini/" + strings.TrimPrefix(uri, "//")
@@ -144,15 +154,13 @@ func renderGopherDirectory(w http.ResponseWriter, tpl *template.Template, assetL
144 } 154 }
145 } 155 }
146 156
147 return tpl.Execute(w, struct { 157 return tpl.Execute(w, TemplateVariables{
148 Title string 158 Title: title,
149 URI string 159 URI: fmt.Sprintf("%s/%s", hostport, uri),
150 Assets AssetList 160 Assets: assetList,
151 Lines []Item 161 Lines: out,
152 RawText string 162 Protocol: "gopher",
153 Error bool 163 })
154 Protocol string
155 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, out, "", false, "gopher"})
156} 164}
157 165
158func parseGeminiDocument(body *bytes.Buffer, uri string, hostport string) (items []Item) { 166func parseGeminiDocument(body *bytes.Buffer, uri string, hostport string) (items []Item) {
@@ -193,15 +201,12 @@ func parseGeminiDocument(body *bytes.Buffer, uri string, hostport string) (items
193 201
194func DefaultHandler(tpl *template.Template, startpagetext string, assetList AssetList) http.HandlerFunc { 202func DefaultHandler(tpl *template.Template, startpagetext string, assetList AssetList) http.HandlerFunc {
195 return func(w http.ResponseWriter, req *http.Request) { 203 return func(w http.ResponseWriter, req *http.Request) {
196 if err := tpl.Execute(w, struct { 204 if err := tpl.Execute(w, TemplateVariables{
197 Title string 205 Title: "Gopher/Gemini proxy",
198 URI string 206 Assets: assetList,
199 Assets AssetList 207 RawText: startpagetext,
200 RawText string 208 Protocol: "startpage",
201 Lines []Item 209 }); err != nil {
202 Error bool
203 Protocol string
204 }{"Gopher/Gemini proxy", "", assetList, startpagetext, nil, false, "startpage"}); err != nil {
205 log.Println("Template error: " + err.Error()) 210 log.Println("Template error: " + err.Error())
206 } 211 }
207 } 212 }
@@ -239,15 +244,14 @@ func GopherHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
239 244
240 uri, err := url.QueryUnescape(strings.Join(parts[1:], "/")) 245 uri, err := url.QueryUnescape(strings.Join(parts[1:], "/"))
241 if err != nil { 246 if err != nil {
242 if e := tpl.Execute(w, struct { 247 if e := tpl.Execute(w, TemplateVariables{
243 Title string 248 Title: title,
244 URI string 249 URI: hostport,
245 Assets AssetList 250 Assets: assetList,
246 RawText string 251 RawText: fmt.Sprintf("Error: %s", err),
247 Lines []Item 252 Error: true,
248 Error bool 253 Protocol: "gopher",
249 Protocol string 254 }); e != nil {
250 }{title, hostport, assetList, fmt.Sprintf("Error: %s", err), nil, true, "gopher"}); e != nil {
251 log.Println("Template error: " + e.Error()) 255 log.Println("Template error: " + e.Error())
252 log.Println(err.Error()) 256 log.Println(err.Error())
253 } 257 }
@@ -268,15 +272,14 @@ func GopherHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
268 ) 272 )
269 273
270 if err != nil { 274 if err != nil {
271 if e := tpl.Execute(w, struct { 275 if e := tpl.Execute(w, TemplateVariables{
272 Title string 276 Title: title,
273 URI string 277 URI: fmt.Sprintf("%s/%s", hostport, uri),
274 Assets AssetList 278 Assets: assetList,
275 RawText string 279 RawText: fmt.Sprintf("Error: %s", err),
276 Lines []Item 280 Error: true,
277 Error bool 281 Protocol: "gopher",
278 Protocol string 282 }); e != nil {
279 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, fmt.Sprintf("Error: %s", err), nil, true, "gopher"}); e != nil {
280 log.Println("Template error: " + e.Error()) 283 log.Println("Template error: " + e.Error())
281 } 284 }
282 return 285 return
@@ -288,15 +291,14 @@ func GopherHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
288 } else if strings.HasPrefix(parts[1], "0") && !strings.HasSuffix(uri, ".xml") && !strings.HasSuffix(uri, ".asc") { 291 } else if strings.HasPrefix(parts[1], "0") && !strings.HasSuffix(uri, ".xml") && !strings.HasSuffix(uri, ".asc") {
289 buf := new(bytes.Buffer) 292 buf := new(bytes.Buffer)
290 buf.ReadFrom(res.Body) 293 buf.ReadFrom(res.Body)
291 if err := tpl.Execute(w, struct { 294
292 Title string 295 if err := tpl.Execute(w, TemplateVariables{
293 URI string 296 Title: title,
294 Assets AssetList 297 URI: fmt.Sprintf("%s/%s", hostport, uri),
295 RawText string 298 Assets: assetList,
296 Lines []Item 299 RawText: buf.String(),
297 Error bool 300 Protocol: "gopher",
298 Protocol string 301 }); err != nil {
299 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, buf.String(), nil, false, "gopher"}); err != nil {
300 log.Println("Template error: " + err.Error()) 302 log.Println("Template error: " + err.Error())
301 } 303 }
302 } else if strings.HasPrefix(parts[1], "T") { 304 } else if strings.HasPrefix(parts[1], "T") {
@@ -312,15 +314,14 @@ func GopherHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
312 } 314 }
313 } else { 315 } else {
314 if err := renderGopherDirectory(w, tpl, assetList, uri, hostport, res.Dir); err != nil { 316 if err := renderGopherDirectory(w, tpl, assetList, uri, hostport, res.Dir); err != nil {
315 if e := tpl.Execute(w, struct { 317 if e := tpl.Execute(w, TemplateVariables{
316 Title string 318 Title: title,
317 URI string 319 URI: fmt.Sprintf("%s/%s", hostport, uri),
318 Assets AssetList 320 Assets: assetList,
319 RawText string 321 RawText: fmt.Sprintf("Error: %s", err),
320 Lines []Item 322 Error: true,
321 Error bool 323 Protocol: "gopher",
322 Protocol string 324 }); e != nil {
323 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, fmt.Sprintf("Error: %s", err), nil, true, "gopher"}); e != nil {
324 log.Println("Template error: " + e.Error()) 325 log.Println("Template error: " + e.Error())
325 log.Println(e.Error()) 326 log.Println(e.Error())
326 } 327 }
@@ -356,15 +357,14 @@ func GeminiHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
356 357
357 uri, err := url.QueryUnescape(strings.Join(parts[1:], "/")) 358 uri, err := url.QueryUnescape(strings.Join(parts[1:], "/"))
358 if err != nil { 359 if err != nil {
359 if e := tpl.Execute(w, struct { 360 if e := tpl.Execute(w, TemplateVariables{
360 Title string 361 Title: title,
361 URI string 362 URI: hostport,
362 Assets AssetList 363 Assets: assetList,
363 RawText string 364 RawText: fmt.Sprintf("Error: %s", err),
364 Lines []Item 365 Error: true,
365 Error bool 366 Protocol: "gemini",
366 Protocol string 367 }); e != nil {
367 }{title, hostport, assetList, fmt.Sprintf("Error: %s", err), nil, true, "gemini"}); e != nil {
368 log.Println("Template error: " + e.Error()) 368 log.Println("Template error: " + e.Error())
369 log.Println(err.Error()) 369 log.Println(err.Error())
370 } 370 }
@@ -385,15 +385,14 @@ func GeminiHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
385 ) 385 )
386 386
387 if err != nil { 387 if err != nil {
388 if e := tpl.Execute(w, struct { 388 if e := tpl.Execute(w, TemplateVariables{
389 Title string 389 Title: title,
390 URI string 390 URI: fmt.Sprintf("%s/%s", hostport, uri),
391 Assets AssetList 391 Assets: assetList,
392 RawText string 392 RawText: fmt.Sprintf("Error: %s", err),
393 Lines []Item 393 Error: true,
394 Error bool 394 Protocol: "gemini",
395 Protocol string 395 }); e != nil {
396 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, fmt.Sprintf("Error: %s", err), nil, true, "gemini"}); e != nil {
397 log.Println("Template error: " + e.Error()) 396 log.Println("Template error: " + e.Error())
398 log.Println(err.Error()) 397 log.Println(err.Error())
399 } 398 }
@@ -407,15 +406,14 @@ func GeminiHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
407 uri, 406 uri,
408 )) 407 ))
409 if err != nil { 408 if err != nil {
410 if e := tpl.Execute(w, struct { 409 if e := tpl.Execute(w, TemplateVariables{
411 Title string 410 Title: title,
412 URI string 411 URI: fmt.Sprintf("%s/%s", hostport, uri),
413 Assets AssetList 412 Assets: assetList,
414 RawText string 413 RawText: fmt.Sprintf("Error: %s", err),
415 Lines []Item 414 Error: true,
416 Error bool 415 Protocol: "gemini",
417 Protocol string 416 }); e != nil {
418 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, fmt.Sprintf("Error: %s", err), nil, true, "gemini"}); e != nil {
419 log.Println("Template error: " + e.Error()) 417 log.Println("Template error: " + e.Error())
420 log.Println(err.Error()) 418 log.Println(err.Error())
421 } 419 }
@@ -427,15 +425,14 @@ func GeminiHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
427 } 425 }
428 426
429 if int(res.Header.Status/10) != 2 { 427 if int(res.Header.Status/10) != 2 {
430 if err := tpl.Execute(w, struct { 428 if err := tpl.Execute(w, TemplateVariables{
431 Title string 429 Title: title,
432 URI string 430 URI: fmt.Sprintf("%s/%s", hostport, uri),
433 Assets AssetList 431 Assets: assetList,
434 RawText string 432 RawText: fmt.Sprintf("Error %d: %s", res.Header.Status, res.Header.Meta),
435 Lines []Item 433 Error: true,
436 Error bool 434 Protocol: "gemini",
437 Protocol string 435 }); err != nil {
438 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, fmt.Sprintf("Error %d: %s", res.Header.Status, res.Header.Meta), nil, true, "gemini"}); err != nil {
439 log.Println("Template error: " + err.Error()) 436 log.Println("Template error: " + err.Error())
440 } 437 }
441 return 438 return
@@ -468,15 +465,14 @@ func GeminiHandler(tpl *template.Template, robotsdata *robotstxt.RobotsData, ass
468 rawText = buf.String() 465 rawText = buf.String()
469 } 466 }
470 467
471 if err := tpl.Execute(w, struct { 468 if err := tpl.Execute(w, TemplateVariables{
472 Title string 469 Title: title,
473 URI string 470 URI: fmt.Sprintf("%s/%s", hostport, uri),
474 Assets AssetList 471 Assets: assetList,
475 RawText string 472 Lines: items,
476 Lines []Item 473 RawText: rawText,
477 Error bool 474 Protocol: "gemini",
478 Protocol string 475 }); err != nil {
479 }{title, fmt.Sprintf("%s/%s", hostport, uri), assetList, rawText, items, false, "gemini"}); err != nil {
480 log.Println("Template error: " + err.Error()) 476 log.Println("Template error: " + err.Error())
481 } 477 }
482 } else { 478 } else {
@@ -678,7 +674,14 @@ func ListenAndServe(bind, startpagefile string, robotsfile string, robotsdebug b
678 ConcurrencyLevel: vipsconcurrency, 674 ConcurrencyLevel: vipsconcurrency,
679 }) 675 })
680 676
681 assets := AssetList{styleAsset, jsAsset, fontwAsset, fontw2Asset, propfontwAsset, propfontw2Asset} 677 assets := AssetList{
678 Style: styleAsset,
679 JS: jsAsset,
680 FontW: fontwAsset,
681 FontW2: fontw2Asset,
682 PropFontW: propfontwAsset,
683 PropFontW2: propfontw2Asset,
684 }
682 685
683 http.Handle("/", gziphandler.GzipHandler(DefaultHandler(tpl, startpagetext, assets))) 686 http.Handle("/", gziphandler.GzipHandler(DefaultHandler(tpl, startpagetext, assets)))
684 http.Handle("/gopher/", gziphandler.GzipHandler(GopherHandler(tpl, robotsdata, assets, robotsdebug))) 687 http.Handle("/gopher/", gziphandler.GzipHandler(GopherHandler(tpl, robotsdata, assets, robotsdebug)))
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-22 23:25:57 +0000