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export feeds

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This commit is contained in:
Nazar Kanaev 2020-07-12 17:23:16 +01:00
parent ea4775839f
commit 5cf6b1723f
1 changed files with 54 additions and 1 deletions
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55
server/handlers.go
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@ -14,6 +14,8 @@ import (
"path/filepath" "path/filepath"
"strconv" "strconv"
"math" "math"
"html"
"fmt"
) )
func IndexHandler(rw http.ResponseWriter, req *http.Request) { func IndexHandler(rw http.ResponseWriter, req *http.Request) {
@ -412,6 +414,57 @@ func OPMLExportHandler(rw http.ResponseWriter, req *http.Request) {
if req.Method == "GET" { if req.Method == "GET" {
rw.Header().Set("Content-Type", "application/xml; charset=utf-8") rw.Header().Set("Content-Type", "application/xml; charset=utf-8")
rw.Header().Set("Content-Disposition", `attachment; filename="subscriptions.opml"`) rw.Header().Set("Content-Disposition", `attachment; filename="subscriptions.opml"`)
rw.Write([]byte("content"))
builder := strings.Builder{}
line := func(s string, args ...string) {
if len(args) > 0 {
escapedargs := make([]interface{}, len(args))
for idx, arg := range args {
escapedargs[idx] = html.EscapeString(arg)
}
s = fmt.Sprintf(s, escapedargs...)
}
builder.WriteString(s)
builder.WriteString("\n")
}
feedline := func(feed storage.Feed, indent int) {
line(
strings.Repeat(" ", indent) +
`<outline type="rss" text="%s" description="%s" xmlUrl="%s" htmlUrl="%s"/>`,
feed.Title, feed.Description,
feed.FeedLink, feed.Link,
)
}
line(`<?xml version="1.0" encoding="UTF-8"?>`)
line(`<opml version="1.1">`)
line(`<head>`)
line(` <title>subscriptions.opml</title>`)
line(`</head>`)
line(`<body>`)
feedsByFolderID := make(map[int64][]storage.Feed)
for _, feed := range db(req).ListFeeds() {
var folderId = int64(0)
if feed.FolderId != nil {
folderId = *feed.FolderId
}
if feedsByFolderID[folderId] == nil {
feedsByFolderID[folderId] = make([]storage.Feed, 0)
}
feedsByFolderID[folderId] = append(feedsByFolderID[folderId], feed)
}
for _, folder := range db(req).ListFolders() {
line(` <outline text="%s"`, folder.Title)
for _, feed := range feedsByFolderID[folder.Id] {
feedline(feed, 4)
}
line(` </outline>`)
}
for _, feed := range feedsByFolderID[0] {
feedline(feed, 2)
}
builder.WriteString(`</body>`)
rw.Write([]byte(builder.String()))
} }
} }