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Add support of media elements for RSS 2 feeds

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This commit is contained in:
Frédéric Guillot 2019-11-28 21:21:00 -08:00
parent c43c9458a9
commit f90e9dfab0
2 changed files with 221 additions and 19 deletions
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121
reader/rss/rss.go
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@ -56,20 +56,71 @@ type rssEnclosure struct {
Length string `xml:"length,attr"`
}
func (enclosure *rssEnclosure) Size() int64 {
if enclosure.Length == "" {
return 0
}
size, _ := strconv.ParseInt(enclosure.Length, 10, 0)
return size
}
type rssItem struct {
GUID string `xml:"guid"`
Title string `xml:"title"`
Links []rssLink `xml:"link"`
OriginalLink string `xml:"http://rssnamespace.org/feedburner/ext/1.0 origLink"`
CommentLinks []rssCommentLink `xml:"comments"`
Description string `xml:"description"`
EncodedContent string `xml:"http://purl.org/rss/1.0/modules/content/ encoded"`
PubDate string `xml:"pubDate"`
Date string `xml:"http://purl.org/dc/elements/1.1/ date"`
Authors []rssAuthor `xml:"author"`
Creator string `xml:"http://purl.org/dc/elements/1.1/ creator"`
EnclosureLinks []rssEnclosure `xml:"enclosure"`
OrigEnclosureLink string `xml:"http://rssnamespace.org/feedburner/ext/1.0 origEnclosureLink"`
GUID string `xml:"guid"`
Title string `xml:"title"`
Links []rssLink `xml:"link"`
OriginalLink string `xml:"http://rssnamespace.org/feedburner/ext/1.0 origLink"`
CommentLinks []rssCommentLink `xml:"comments"`
Description string `xml:"description"`
EncodedContent string `xml:"http://purl.org/rss/1.0/modules/content/ encoded"`
PubDate string `xml:"pubDate"`
Date string `xml:"http://purl.org/dc/elements/1.1/ date"`
Authors []rssAuthor `xml:"author"`
Creator string `xml:"http://purl.org/dc/elements/1.1/ creator"`
EnclosureLinks []rssEnclosure `xml:"enclosure"`
OrigEnclosureLink string `xml:"http://rssnamespace.org/feedburner/ext/1.0 origEnclosureLink"`
MediaGroup []rssMediaGroup `xml:"http://search.yahoo.com/mrss/ group"`
MediaContents []rssMediaContent `xml:"http://search.yahoo.com/mrss/ content"`
MediaThumbnails []rssMediaThumbnails `xml:"http://search.yahoo.com/mrss/ thumbnail"`
}
type rssMediaGroup struct {
MediaList []rssMediaContent `xml:"content"`
}
type rssMediaContent struct {
URL string `xml:"url,attr"`
Type string `xml:"type,attr"`
FileSize string `xml:"fileSize,attr"`
Medium string `xml:"medium,attr"`
}
func (mediaContent *rssMediaContent) MimeType() string {
switch {
case mediaContent.Type == "" && mediaContent.Medium == "image":
return "image/*"
case mediaContent.Type == "" && mediaContent.Medium == "video":
return "video/*"
case mediaContent.Type == "" && mediaContent.Medium == "audio":
return "audio/*"
case mediaContent.Type == "" && mediaContent.Medium == "video":
return "video/*"
case mediaContent.Type != "":
return mediaContent.Type
default:
return "application/octet-stream"
}
}
func (mediaContent *rssMediaContent) Size() int64 {
if mediaContent.FileSize == "" {
return 0
}
size, _ := strconv.ParseInt(mediaContent.FileSize, 10, 0)
return size
}
type rssMediaThumbnails struct {
URL string `xml:"url,attr"`
}
func (r *rssFeed) SiteURL() string {
@ -200,9 +251,20 @@ func (r *rssItem) URL() string {
func (r *rssItem) Enclosures() model.EnclosureList {
enclosures := make(model.EnclosureList, 0)
duplicates := make(map[string]bool, 0)
for _, mediaThumbnail := range r.MediaThumbnails {
if _, found := duplicates[mediaThumbnail.URL]; !found {
duplicates[mediaThumbnail.URL] = true
enclosures = append(enclosures, &model.Enclosure{
URL: mediaThumbnail.URL,
MimeType: "image/*",
Size: 0,
})
}
}
for _, enclosure := range r.EnclosureLinks {
length, _ := strconv.ParseInt(enclosure.Length, 10, 0)
enclosureURL := enclosure.URL
if r.OrigEnclosureLink != "" {
@ -212,11 +274,32 @@ func (r *rssItem) Enclosures() model.EnclosureList {
}
}
enclosures = append(enclosures, &model.Enclosure{
URL: enclosureURL,
MimeType: enclosure.Type,
Size: length,
})
if _, found := duplicates[enclosureURL]; !found {
duplicates[enclosureURL] = true
enclosures = append(enclosures, &model.Enclosure{
URL: enclosureURL,
MimeType: enclosure.Type,
Size: enclosure.Size(),
})
}
}
for _, mediaContentItem := range r.MediaGroup {
for _, mediaContent := range mediaContentItem.MediaList {
r.MediaContents = append(r.MediaContents, mediaContent)
}
}
for _, mediaContent := range r.MediaContents {
if _, found := duplicates[mediaContent.URL]; !found {
duplicates[mediaContent.URL] = true
enclosures = append(enclosures, &model.Enclosure{
URL: mediaContent.URL,
MimeType: mediaContent.MimeType(),
Size: mediaContent.Size(),
})
}
}
return enclosures