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Extract Twitter social media info #17

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Extract Twitter social media info #17

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29 changes: 28 additions & 1 deletion parser.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ var (
rxWhitespace = regexp.MustCompile(`(?i)^\s*$`)
rxHasContent = regexp.MustCompile(`(?i)\S$`)
rxPropertyPattern = regexp.MustCompile(`(?i)\s*(dc|dcterm|og|twitter)\s*:\s*(author|creator|description|title|site_name|image\S*)\s*`)
rxNamePattern = regexp.MustCompile(`(?i)^\s*(?:(dc|dcterm|og|twitter|weibo:(article|webpage))\s*[\.:]\s*)?(author|creator|description|title|site_name|image)\s*$`)
rxNamePattern = regexp.MustCompile(`(?i)^\s*(?:(dc|dcterm|og|twitter|weibo:(article|webpage))\s*[\.:]\s*)?(author|creator|description|title|site|site_name|image)\s*$`)
rxTitleSeparator = regexp.MustCompile(`(?i) [\|\-\\/>»] `)
rxTitleHierarchySep = regexp.MustCompile(`(?i) [\\/>»] `)
rxTitleRemoveFinalPart = regexp.MustCompile(`(?i)(.*)[\|\-\\/>»] .*`)
Expand Down Expand Up @@ -76,6 +76,11 @@ type parseAttempt struct {
textLength int
}

// SocialInfo info contains information about the social media accounts related to this page
type SocialInfo struct {
Username string
}

// Article is the final readable content.
type Article struct {
Title string
Expand All @@ -88,6 +93,7 @@ type Article struct {
SiteName string
Image string
Favicon string
Social map[string]SocialInfo
}

// Parser is the parser that parses the page to get the readable content.
Expand Down Expand Up @@ -1263,13 +1269,26 @@ func (ps *Parser) getArticleMetadata() map[string]string {
metadataExcerpt = shtml.UnescapeString(metadataExcerpt)
metadataSiteName = shtml.UnescapeString(metadataSiteName)

metadataTwitter := ""
possibleAttrNames = []string{"twitter:site", "twitter:creator"}
for _, name := range possibleAttrNames {
if value, ok := values[name]; ok {
metadataTwitter = value
if metadataTwitter != "" && metadataTwitter[0] != '@' {
metadataTwitter = "@" + metadataTwitter
}
break
}
}

return map[string]string{
"title": metadataTitle,
"byline": metadataByline,
"excerpt": metadataExcerpt,
"siteName": metadataSiteName,
"image": metadataImage,
"favicon": metadataFavicon,
"twitter": metadataTwitter,
}
}

Expand Down Expand Up @@ -1943,6 +1962,13 @@ func (ps *Parser) Parse(input io.Reader, pageURL string) (Article, error) {
validByline := strings.ToValidUTF8(finalByline, "")
validExcerpt := strings.ToValidUTF8(excerpt, "")

social := make(map[string]SocialInfo)
if twitter, ok := metadata["twitter"]; ok && twitter != "" {
social["twitter"] = SocialInfo{
Username: twitter,
}
}

return Article{
Title: validTitle,
Byline: validByline,
Expand All @@ -1954,6 +1980,7 @@ func (ps *Parser) Parse(input io.Reader, pageURL string) (Article, error) {
SiteName: metadata["siteName"],
Image: metadata["image"],
Favicon: metadata["favicon"],
Social: social,
}, nil
}

Expand Down