mirror of
https://github.com/makeworld-the-better-one/amfora.git
synced 2024-11-23 09:43:33 +03:00
116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
package display
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import (
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"errors"
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"net/url"
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"strings"
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"github.com/spf13/viper"
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)
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// This file contains funcs that are small, self-contained utilities.
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// isValidTab indicates whether the passed tab is still being used, even if it's not currently displayed.
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func isValidTab(t *tab) bool {
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tempTabs := tabs
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for i := range tempTabs {
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if tempTabs[i] == t {
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return true
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}
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}
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return false
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}
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func leftMargin() int {
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return int(float64(termW) * viper.GetFloat64("a-general.left_margin"))
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}
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func textWidth() int {
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if termW <= 0 {
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// This prevent a flash of 1-column text on startup, when the terminal
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// width hasn't been initialized.
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return viper.GetInt("a-general.max_width")
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}
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rightMargin := leftMargin()
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if leftMargin() > 10 {
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// 10 is the max right margin
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rightMargin = 10
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}
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max := termW - leftMargin() - rightMargin
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if max < viper.GetInt("a-general.max_width") {
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return max
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}
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return viper.GetInt("a-general.max_width")
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}
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// queryEscape is the same as url.PathEscape, but it also replaces the +.
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// This is because Gemini requires percent-escaping for queries.
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func queryEscape(path string) string {
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return strings.ReplaceAll(url.PathEscape(path), "+", "%2B")
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}
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// resolveRelLink returns an absolute link for the given absolute link and relative one.
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// It also returns an error if it could not resolve the links, which should be displayed
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// to the user.
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func resolveRelLink(t *tab, prev, next string) (string, error) {
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if !t.hasContent() {
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return next, nil
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}
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prevParsed, _ := url.Parse(prev)
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nextParsed, err := url.Parse(next)
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if err != nil {
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return "", errors.New("link URL could not be parsed")
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}
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return prevParsed.ResolveReference(nextParsed).String(), nil
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}
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// normalizeURL attempts to make URLs that are different strings
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// but point to the same place all look the same.
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//
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// Example: gemini://gus.guru:1965/ and //gus.guru/.
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// This function will take both output the same URL each time.
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//
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// The string passed must already be confirmed to be a URL.
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// Detection of a search string vs. a URL must happen elsewhere.
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//
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// It only works with absolute URLs.
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func normalizeURL(u string) string {
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parsed, err := url.Parse(u)
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if err != nil {
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return u
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}
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if !strings.Contains(u, "://") && !strings.HasPrefix(u, "//") {
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// No scheme at all in the URL
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parsed, err = url.Parse("gemini://" + u)
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if err != nil {
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return u
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}
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}
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if parsed.Scheme == "" {
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// Always add scheme
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parsed.Scheme = "gemini"
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} else if parsed.Scheme != "gemini" {
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// Not a gemini URL, nothing to do
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return u
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}
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parsed.User = nil // No passwords in Gemini
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parsed.Fragment = "" // No fragments either
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if parsed.Port() == "1965" {
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// Always remove default port
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parsed.Host = parsed.Hostname()
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}
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// Add slash to the end of a URL with just a domain
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// gemini://example.com -> gemini://example.com/
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if parsed.Path == "" {
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parsed.Path = "/"
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}
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return parsed.String()
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}
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