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Escape page content

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This commit is contained in:
Trevor Slocum 2020-11-24 18:34:14 -08:00
parent e2232a8dc8
commit a8700abe29
2 changed files with 14 additions and 8 deletions
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20
pkg/gmitohtml/convert.go
View file

@ -5,6 +5,7 @@ import (
"bytes" "bytes"
"errors" "errors"
"fmt" "fmt"
"html"
"net/url" "net/url"
"path" "path"
"strings" "strings"
@ -20,6 +21,11 @@ var assetLock sync.Mutex
func rewriteURL(u string, loc *url.URL) string { func rewriteURL(u string, loc *url.URL) string {
if daemonAddress != "" { if daemonAddress != "" {
scheme := "gemini"
if strings.HasPrefix(loc.Path, "/file/") {
scheme = "file"
}
if strings.HasPrefix(u, "gemini://") { if strings.HasPrefix(u, "gemini://") {
return "http://" + daemonAddress + "/gemini/" + u[9:] return "http://" + daemonAddress + "/gemini/" + u[9:]
} else if strings.HasPrefix(u, "file://") { } else if strings.HasPrefix(u, "file://") {
@ -34,9 +40,9 @@ func rewriteURL(u string, loc *url.URL) string {
if u[0] != '/' { if u[0] != '/' {
newPath = path.Join(loc.Path, u) newPath = path.Join(loc.Path, u)
} }
return "http://" + daemonAddress + "/gemini/" + loc.Host + newPath return "http://" + daemonAddress + "/" + scheme + "/" + loc.Host + newPath
} }
return "http://" + daemonAddress + "/gemini/" + u return "http://" + daemonAddress + "/" + scheme + "/" + u
} }
return u return u
} }
@ -68,7 +74,7 @@ func Convert(page []byte, u string) []byte {
} }
if preformatted { if preformatted {
result = append(result, line...) result = append(result, html.EscapeString(string(line))...)
result = append(result, []byte("\n")...) result = append(result, []byte("\n")...)
continue continue
} }
@ -89,9 +95,9 @@ func Convert(page []byte, u string) []byte {
linkURL = split[0] linkURL = split[0]
linkLabel = split[1] linkLabel = split[1]
} }
link := append([]byte(`<a href="`), rewriteURL(string(linkURL), parsedURL)...) link := append([]byte(`<a href="`), html.EscapeString(rewriteURL(string(linkURL), parsedURL))...)
link = append(link, []byte(`">`)...) link = append(link, []byte(`">`)...)
link = append(link, linkLabel...) link = append(link, html.EscapeString(string(linkLabel))...)
link = append(link, []byte(`</a>`)...) link = append(link, []byte(`</a>`)...)
result = append(result, link...) result = append(result, link...)
result = append(result, []byte("<br>")...) result = append(result, []byte("<br>")...)
@ -107,11 +113,11 @@ func Convert(page []byte, u string) []byte {
} }
} }
if heading > 0 { if heading > 0 {
result = append(result, []byte(fmt.Sprintf("<h%d>%s</h%d>", heading, line[heading:], heading))...) result = append(result, []byte(fmt.Sprintf("<h%d>%s</h%d>", heading, html.EscapeString(string(line[heading:])), heading))...)
continue continue
} }
result = append(result, line...) result = append(result, html.EscapeString(string(line))...)
result = append(result, []byte("<br>")...) result = append(result, []byte("<br>")...)
} }

2
pkg/gmitohtml/daemon.go
View file

@ -117,7 +117,7 @@ func fetch(u string) ([]byte, []byte, error) {
errorPage := []byte(pageHeader) errorPage := []byte(pageHeader)
errorPage = append(errorPage, []byte(fmt.Sprintf("Server sent unexpected header:<br><br><b>%s</b>", header))...) errorPage = append(errorPage, []byte(fmt.Sprintf("Server sent unexpected header:<br><br><b>%s</b>", header))...)
errorPage = append(errorPage, []byte(pageFooter)...) errorPage = append(errorPage, []byte(pageFooter)...)
return header, errorPage, nil return header, fillTemplateVariables(errorPage, u, false), nil
} }
if bytes.HasPrefix(header, []byte("20 text/html")) { if bytes.HasPrefix(header, []byte("20 text/html")) {