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// Copyright (C) 2021 nytpu
// SPDX-License-Identifier: AGPL-3.0-only
// For more license details, see LICENSE or <https://www.gnu.org/licenses/agpl-3.0.html>.
// This file incorporates code from makeworld's amfora:
// https://github.com/makeworld-the-better-one/amfora/blob/master/subscriptions/structs.go
// Original source is Copyright 2020 makeworld and is licensed under the
// terms of the GNU General Public License Version 3.0.
// https://www.gnu.org/licenses/gpl-3.0-standalone.html
package core
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sort"
"time"
)
// getPageEntries returns a full list of page entries from a FullData. It will
// always be sorted from newest to oldest.
func (d *FullData) getPageEntries() *PageEntries {
var pe PageEntries
d.RLock()
for _, feed := range d.Feeds {
for _, item := range feed.Items {
// Ignore items without links
if item.Link == "" {
continue
}
var prefix string
if feed.Title != "" {
prefix = feed.Title
} else {
prefix = feed.Link
}
pe.Entries = append(pe.Entries, &PageEntry{
Prefix: prefix,
Title: item.Title,
Published: item.Published,
URL: item.Link,
})
}
}
for _, page := range d.Pages {
var prefix string
if page.Title != "" {
prefix = page.Title
} else {
prefix = page.Link
}
pe.Entries = append(pe.Entries, &PageEntry{
Prefix: prefix,
Published: page.Updated,
URL: page.Link,
})
}
d.RUnlock()
sort.Sort(&pe)
return &pe
}
// toLocalDay truncates the provided time to a date only, but converts to the
// local time first.
func toLocalDay(t time.Time) time.Time {
t = t.Local()
return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
}
func (d *FullData) WriteSubs(dataPath string) error {
path := filepath.Join(dataPath, "subscriptions.gmi.new")
rawPage := `# subscribed feeds
## Feeds
Gemini, Atom, RSS, and JSON feeds from all over.
`
d.FeedsMu.RLock()
for _, v := range d.Feeds {
var link string
if v.FeedLink != "" {
link = v.FeedLink
} else {
link = v.Link
}
rawPage += fmt.Sprintf("=> %v %v\n", link, v.Title)
}
d.FeedsMu.RUnlock()
rawPage += `
## Pages
Watching these pages for any changes that occur.
`
d.PagesMu.RLock()
for _, v := range d.Pages {
rawPage += fmt.Sprintf("=> %v", v.Link)
if v.Title != "" {
rawPage += fmt.Sprintf(" %v", v.Title)
}
rawPage += "\n"
}
d.PagesMu.RUnlock()
rawPage += `
---
=> https://git.nytpu.com/comitium/about/ aggregated using comitium
`
err := ioutil.WriteFile(path, []byte(rawPage), 0666)
if err != nil {
return err
}
// if full write was successful then overwrite original
err = os.Rename(path, filepath.Join(dataPath, "subscriptions.gmi"))
return err
}
func (d *FullData) WriteFeed(dataPath string) error {
path := filepath.Join(dataPath, "feed.gmi.new")
rawPage := Header
d.RLock()
pe := d.getPageEntries()
rawPage += fmt.Sprintf("\n=> subscriptions.gmi Currently aggregating %d capsules, gopherholes, and websites.\n\n", len(d.Feeds)+len(d.Pages))
d.RUnlock()
rawPage += fmt.Sprintf("Generated on %s\n", time.Now().Format("2006-01-02 at 15:04 MST"))
if len(pe.Entries) > 0 {
curDay := toLocalDay(pe.Entries[0].Published)
rawPage += fmt.Sprintf("\n\n## %s\n\n", curDay.Format("2006-01-02"))
for _, entry := range pe.Entries {
// get just the date it was published
pub := toLocalDay(entry.Published)
if pub.Before(curDay) {
curDay = pub
rawPage += fmt.Sprintf("\n\n## %s\n\n", curDay.Format("2006-01-02"))
}
if entry.Title == "" {
rawPage += fmt.Sprintf("=> %s %s\n", entry.URL, entry.Prefix)
} else {
rawPage += fmt.Sprintf("=> %s %s — %s\n", entry.URL, entry.Prefix, entry.Title)
}
}
}
rawPage += `
---
=> https://git.nytpu.com/comitium/about/ aggregated using comitium
`
err := ioutil.WriteFile(path, []byte(rawPage), 0666)
if err != nil {
return err
}
// if full write was successful then overwrite original
err = os.Rename(path, filepath.Join(dataPath, "feed.gmi"))
return err
}
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