Handle invalid feeds with relative URLs

reader/atom/atom_03.go

@@ -27,12 +27,24 @@ type atom03Feed struct {
 	Entries []atom03Entry `xml:"entry"`
 }
 
-func (a *atom03Feed) Transform() *model.Feed {
+func (a *atom03Feed) Transform(baseURL string) *model.Feed {
+	var err error
+
 	feed := new(model.Feed)
-	feed.FeedURL = a.Links.firstLinkWithRelation("self")
-	feed.SiteURL = a.Links.originalLink()
-	feed.Title = a.Title.String()
 
+	feedURL := a.Links.firstLinkWithRelation("self")
+	feed.FeedURL, err = url.AbsoluteURL(baseURL, feedURL)
+	if err != nil {
+		feed.FeedURL = feedURL
+	}
+
+	siteURL := a.Links.originalLink()
+	feed.SiteURL, err = url.AbsoluteURL(baseURL, siteURL)
+	if err != nil {
+		feed.SiteURL = siteURL
+	}
+
+	feed.Title = a.Title.String()
 	if feed.Title == "" {
 		feed.Title = feed.SiteURL
 	}

reader/atom/atom_03_test.go

@@ -28,7 +28,7 @@ func TestParseAtom03(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -37,7 +37,7 @@ func TestParseAtom03(t *testing.T) {
 		t.Errorf("Incorrect title, got: %s", feed.Title)
 	}
 
-	if feed.FeedURL != "" {
+	if feed.FeedURL != "http://diveintomark.org/" {
 		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
 	}
 
@@ -88,7 +88,7 @@ func TestParseAtom03WithoutFeedTitle(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -111,7 +111,7 @@ func TestParseAtom03WithoutEntryTitle(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -142,7 +142,7 @@ func TestParseAtom03WithSummaryOnly(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -173,7 +173,7 @@ func TestParseAtom03WithXMLContent(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -204,7 +204,7 @@ func TestParseAtom03WithBase64Content(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://diveintomark.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}

reader/atom/atom_10.go

@@ -31,12 +31,24 @@ type atom10Feed struct {
 	Entries []atom10Entry `xml:"entry"`
 }
 
-func (a *atom10Feed) Transform() *model.Feed {
+func (a *atom10Feed) Transform(baseURL string) *model.Feed {
+	var err error
+
 	feed := new(model.Feed)
-	feed.FeedURL = a.Links.firstLinkWithRelation("self")
-	feed.SiteURL = a.Links.originalLink()
-	feed.Title = a.Title.String()
 
+	feedURL := a.Links.firstLinkWithRelation("self")
+	feed.FeedURL, err = url.AbsoluteURL(baseURL, feedURL)
+	if err != nil {
+		feed.FeedURL = feedURL
+	}
+
+	siteURL := a.Links.originalLink()
+	feed.SiteURL, err = url.AbsoluteURL(baseURL, siteURL)
+	if err != nil {
+		feed.SiteURL = siteURL
+	}
+
+	feed.Title = a.Title.String()
 	if feed.Title == "" {
 		feed.Title = feed.SiteURL
 	}

reader/atom/atom_10_test.go

@@ -32,7 +32,7 @@ func TestParseAtomSample(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org/feed.xml", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -41,7 +41,7 @@ func TestParseAtomSample(t *testing.T) {
 		t.Errorf("Incorrect title, got: %s", feed.Title)
 	}
 
-	if feed.FeedURL != "" {
+	if feed.FeedURL != "http://example.org/feed.xml" {
 		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
 	}
 
@@ -90,7 +90,7 @@ func TestParseFeedWithoutTitle(t *testing.T) {
 			<updated>2003-12-13T18:30:02Z</updated>
 		</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -121,7 +121,7 @@ func TestParseEntryWithoutTitle(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -140,7 +140,7 @@ func TestParseFeedURL(t *testing.T) {
 	  <updated>2003-12-13T18:30:02Z</updated>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -154,6 +154,42 @@ func TestParseFeedURL(t *testing.T) {
 	}
 }
 
+func TestParseFeedWithRelativeURL(t *testing.T) {
+	data := `<?xml version="1.0" encoding="utf-8"?>
+	<feed xmlns="http://www.w3.org/2005/Atom">
+	  <title>Example Feed</title>
+	  <link href="/blog/atom.xml" rel="self" type="application/atom+xml"/>
+	  <link href="/blog"/>
+
+	  <entry>
+		<title>Test</title>
+		<link href="/blog/article.html"/>
+		<link href="/blog/article.html" rel="alternate" type="text/html"/>
+		<id>/blog/article.html</id>
+		<updated>2003-12-13T18:30:02Z</updated>
+		<summary>Some text.</summary>
+	  </entry>
+
+	</feed>`
+
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if feed.FeedURL != "https://example.org/blog/atom.xml" {
+		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
+	}
+
+	if feed.SiteURL != "https://example.org/blog" {
+		t.Errorf("Incorrect site URL, got: %s", feed.SiteURL)
+	}
+
+	if feed.Entries[0].URL != "https://example.org/blog/article.html" {
+		t.Errorf("Incorrect entry URL, got: %s", feed.Entries[0].URL)
+	}
+}
+
 func TestParseEntryWithRelativeURL(t *testing.T) {
 	data := `<?xml version="1.0" encoding="utf-8"?>
 	<feed xmlns="http://www.w3.org/2005/Atom">
@@ -170,7 +206,7 @@ func TestParseEntryWithRelativeURL(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.net/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -198,7 +234,7 @@ func TestParseEntryTitleWithWhitespaces(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -224,7 +260,7 @@ func TestParseEntryTitleWithHTMLAndCDATA(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -250,7 +286,7 @@ func TestParseEntryTitleWithHTML(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -276,7 +312,7 @@ func TestParseEntryTitleWithXHTML(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -302,7 +338,7 @@ func TestParseEntrySummaryWithXHTML(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -328,7 +364,7 @@ func TestParseEntrySummaryWithHTML(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -354,7 +390,7 @@ func TestParseEntrySummaryWithPlainText(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -383,7 +419,7 @@ func TestParseEntryWithAuthorName(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -412,7 +448,7 @@ func TestParseEntryWithoutAuthorName(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -462,7 +498,7 @@ func TestParseEntryWithEnclosures(t *testing.T) {
 		</entry>
   	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -522,7 +558,7 @@ func TestParseEntryWithoutEnclosureURL(t *testing.T) {
 		</entry>
   	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -555,7 +591,7 @@ func TestParseEntryWithPublished(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -581,7 +617,7 @@ func TestParseEntryWithPublishedAndUpdated(t *testing.T) {
 
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -593,7 +629,7 @@ func TestParseEntryWithPublishedAndUpdated(t *testing.T) {
 
 func TestParseInvalidXml(t *testing.T) {
 	data := `garbage`
-	_, err := Parse(bytes.NewBufferString(data))
+	_, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err == nil {
 		t.Error("Parse should returns an error")
 	}
@@ -608,7 +644,7 @@ func TestParseTitleWithSingleQuote(t *testing.T) {
 		</feed>
 	`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -627,7 +663,7 @@ func TestParseTitleWithEncodedSingleQuote(t *testing.T) {
 		</feed>
 	`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -646,7 +682,7 @@ func TestParseTitleWithSingleQuoteAndHTMLType(t *testing.T) {
 		</feed>
 	`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -665,7 +701,7 @@ func TestParseWithHTMLEntity(t *testing.T) {
 		</feed>
 	`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -684,7 +720,7 @@ func TestParseWithInvalidCharacterEntity(t *testing.T) {
 		</feed>
 	`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -717,7 +753,7 @@ A website: http://example.org/</media:description>
 		</entry>
   	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -783,7 +819,7 @@ A website: http://example.org/</media:description>
 		</entry>
   	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -854,7 +890,7 @@ func TestParseRepliesLinkRelationWithHTMLType(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -898,7 +934,7 @@ func TestParseRepliesLinkRelationWithXHTMLType(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -937,7 +973,7 @@ func TestParseRepliesLinkRelationWithNoType(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -977,7 +1013,7 @@ func TestAbsoluteCommentsURL(t *testing.T) {
 		</entry>
 	</feed>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}

reader/atom/parser.go

@@ -15,11 +15,11 @@ import (
 )
 
 type atomFeed interface {
-	Transform() *model.Feed
+	Transform(baseURL string) *model.Feed
 }
 
 // Parse returns a normalized feed struct from a Atom feed.
-func Parse(r io.Reader) (*model.Feed, *errors.LocalizedError) {
+func Parse(baseURL string, r io.Reader) (*model.Feed, *errors.LocalizedError) {
 	var buf bytes.Buffer
 	tee := io.TeeReader(r, &buf)
 
@@ -36,7 +36,7 @@ func Parse(r io.Reader) (*model.Feed, *errors.LocalizedError) {
 		return nil, errors.NewLocalizedError("Unable to parse Atom feed: %q", err)
 	}
 
-	return rawFeed.Transform(), nil
+	return rawFeed.Transform(baseURL), nil
 }
 
 func getAtomFeedVersion(data io.Reader) string {

reader/feed/handler.go

@@ -58,7 +58,7 @@ func (h *Handler) CreateFeed(userID, categoryID int64, url string, crawler bool,
 		return nil, errors.NewLocalizedError(errDuplicate, response.EffectiveURL)
 	}
 
-	subscription, parseErr := parser.ParseFeed(response.BodyAsString())
+	subscription, parseErr := parser.ParseFeed(response.EffectiveURL, response.BodyAsString())
 	if parseErr != nil {
 		return nil, parseErr
 	}
@@ -137,7 +137,7 @@ func (h *Handler) RefreshFeed(userID, feedID int64) error {
 	if originalFeed.IgnoreHTTPCache || response.IsModified(originalFeed.EtagHeader, originalFeed.LastModifiedHeader) {
 		logger.Debug("[Handler:RefreshFeed] Feed #%d has been modified", feedID)
 
-		updatedFeed, parseErr := parser.ParseFeed(response.BodyAsString())
+		updatedFeed, parseErr := parser.ParseFeed(response.EffectiveURL, response.BodyAsString())
 		if parseErr != nil {
 			originalFeed.WithError(parseErr.Localize(printer))
 			h.store.UpdateFeedError(originalFeed)

reader/json/json.go

@@ -55,12 +55,22 @@ func (j *jsonFeed) GetAuthor() string {
 	return getAuthor(j.Author)
 }
 
-func (j *jsonFeed) Transform() *model.Feed {
+func (j *jsonFeed) Transform(baseURL string) *model.Feed {
+	var err error
+
 	feed := new(model.Feed)
-	feed.FeedURL = j.FeedURL
-	feed.SiteURL = j.SiteURL
-	feed.Title = strings.TrimSpace(j.Title)
 
+	feed.FeedURL, err = url.AbsoluteURL(baseURL, j.FeedURL)
+	if err != nil {
+		feed.FeedURL = j.FeedURL
+	}
+
+	feed.SiteURL, err = url.AbsoluteURL(baseURL, j.SiteURL)
+	if err != nil {
+		feed.SiteURL = j.SiteURL
+	}
+
+	feed.Title = strings.TrimSpace(j.Title)
 	if feed.Title == "" {
 		feed.Title = feed.SiteURL
 	}

reader/json/parser.go

@@ -13,12 +13,12 @@ import (
 )
 
 // Parse returns a normalized feed struct from a JON feed.
-func Parse(data io.Reader) (*model.Feed, *errors.LocalizedError) {
+func Parse(baseURL string, data io.Reader) (*model.Feed, *errors.LocalizedError) {
 	feed := new(jsonFeed)
 	decoder := json.NewDecoder(data)
 	if err := decoder.Decode(&feed); err != nil {
 		return nil, errors.NewLocalizedError("Unable to parse JSON Feed: %q", err)
 	}
 
-	return feed.Transform(), nil
+	return feed.Transform(baseURL), nil
 }

reader/json/parser_test.go

@@ -31,7 +31,7 @@ func TestParseJsonFeed(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -113,7 +113,7 @@ func TestParsePodcast(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://therecord.co/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -197,7 +197,7 @@ func TestParseEntryWithoutAttachmentURL(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://therecord.co/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -226,7 +226,7 @@ func TestParseFeedWithRelativeURL(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -258,7 +258,7 @@ func TestParseAuthor(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -287,7 +287,7 @@ func TestParseFeedWithoutTitle(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -313,7 +313,7 @@ func TestParseFeedItemWithInvalidDate(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -341,7 +341,7 @@ func TestParseFeedItemWithoutID(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -368,7 +368,7 @@ func TestParseFeedItemWithoutTitle(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -395,7 +395,7 @@ func TestParseTruncateItemTitle(t *testing.T) {
 		]
 	}`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -411,7 +411,7 @@ func TestParseTruncateItemTitle(t *testing.T) {
 
 func TestParseInvalidJSON(t *testing.T) {
 	data := `garbage`
-	_, err := Parse(bytes.NewBufferString(data))
+	_, err := Parse("https://example.org/feed.json", bytes.NewBufferString(data))
 	if err == nil {
 		t.Error("Parse should returns an error")
 	}

reader/parser/parser.go

@@ -16,16 +16,16 @@ import (
 )
 
 // ParseFeed analyzes the input data and returns a normalized feed object.
-func ParseFeed(data string) (*model.Feed, *errors.LocalizedError) {
+func ParseFeed(baseURL, data string) (*model.Feed, *errors.LocalizedError) {
 	switch DetectFeedFormat(data) {
 	case FormatAtom:
-		return atom.Parse(strings.NewReader(data))
+		return atom.Parse(baseURL, strings.NewReader(data))
 	case FormatRSS:
-		return rss.Parse(strings.NewReader(data))
+		return rss.Parse(baseURL, strings.NewReader(data))
 	case FormatJSON:
-		return json.Parse(strings.NewReader(data))
+		return json.Parse(baseURL, strings.NewReader(data))
 	case FormatRDF:
-		return rdf.Parse(strings.NewReader(data))
+		return rdf.Parse(baseURL, strings.NewReader(data))
 	default:
 		return nil, errors.NewLocalizedError("Unsupported feed format")
 	}

reader/parser/parser_test.go

@@ -34,7 +34,7 @@ func TestParseAtom(t *testing.T) {
 
 	</feed>`
 
-	feed, err := ParseFeed(data)
+	feed, err := ParseFeed("https://example.org/", data)
 	if err != nil {
 		t.Error(err)
 	}
@@ -44,6 +44,42 @@ func TestParseAtom(t *testing.T) {
 	}
 }
 
+func TestParseAtomFeedWithRelativeURL(t *testing.T) {
+	data := `<?xml version="1.0" encoding="utf-8"?>
+	<feed xmlns="http://www.w3.org/2005/Atom">
+	  <title>Example Feed</title>
+	  <link href="/blog/atom.xml" rel="self" type="application/atom+xml"/>
+	  <link href="/blog"/>
+
+	  <entry>
+		<title>Test</title>
+		<link href="/blog/article.html"/>
+		<link href="/blog/article.html" rel="alternate" type="text/html"/>
+		<id>/blog/article.html</id>
+		<updated>2003-12-13T18:30:02Z</updated>
+		<summary>Some text.</summary>
+	  </entry>
+
+	</feed>`
+
+	feed, err := ParseFeed("https://example.org/blog/atom.xml", data)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if feed.FeedURL != "https://example.org/blog/atom.xml" {
+		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
+	}
+
+	if feed.SiteURL != "https://example.org/blog" {
+		t.Errorf("Incorrect site URL, got: %s", feed.SiteURL)
+	}
+
+	if feed.Entries[0].URL != "https://example.org/blog/article.html" {
+		t.Errorf("Incorrect entry URL, got: %s", feed.Entries[0].URL)
+	}
+}
+
 func TestParseRSS(t *testing.T) {
 	data := `<?xml version="1.0"?>
 	<rss version="2.0">
@@ -60,7 +96,7 @@ func TestParseRSS(t *testing.T) {
 	</channel>
 	</rss>`
 
-	feed, err := ParseFeed(data)
+	feed, err := ParseFeed("http://liftoff.msfc.nasa.gov/", data)
 	if err != nil {
 		t.Error(err)
 	}
@@ -70,6 +106,44 @@ func TestParseRSS(t *testing.T) {
 	}
 }
 
+func TestParseRSSFeedWithRelativeURL(t *testing.T) {
+	data := `<?xml version="1.0"?>
+	<rss version="2.0">
+	<channel>
+		<title>Example Feed</title>
+		<link>/blog</link>
+		<item>
+			<title>Example Entry</title>
+			<link>/blog/article.html</link>
+			<description>Something</description>
+			<pubDate>Tue, 03 Jun 2003 09:39:21 GMT</pubDate>
+			<guid>1234</guid>
+		</item>
+	</channel>
+	</rss>`
+
+	feed, err := ParseFeed("http://example.org/rss.xml", data)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if feed.Title != "Example Feed" {
+		t.Errorf("Incorrect title, got: %s", feed.Title)
+	}
+
+	if feed.FeedURL != "http://example.org/rss.xml" {
+		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
+	}
+
+	if feed.SiteURL != "http://example.org/blog" {
+		t.Errorf("Incorrect site URL, got: %s", feed.SiteURL)
+	}
+
+	if feed.Entries[0].URL != "http://example.org/blog/article.html" {
+		t.Errorf("Incorrect entry URL, got: %s", feed.Entries[0].URL)
+	}
+}
+
 func TestParseRDF(t *testing.T) {
 	data := `<?xml version="1.0" encoding="utf-8"?>
 		<rdf:RDF
@@ -89,7 +163,7 @@ func TestParseRDF(t *testing.T) {
 		  </item>
 		</rdf:RDF>`
 
-	feed, err := ParseFeed(data)
+	feed, err := ParseFeed("http://example.org/", data)
 	if err != nil {
 		t.Error(err)
 	}
@@ -99,6 +173,43 @@ func TestParseRDF(t *testing.T) {
 	}
 }
 
+func TestParseRDFWithRelativeURL(t *testing.T) {
+	data := `<?xml version="1.0" encoding="utf-8"?>
+		<rdf:RDF
+		  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+		  xmlns="http://purl.org/rss/1.0/"
+		>
+
+		  <channel>
+			<title>RDF Example</title>
+			<link>/blog</link>
+		  </channel>
+
+		  <item>
+			<title>Title</title>
+			<link>/blog/article.html</link>
+			<description>Test</description>
+		  </item>
+		</rdf:RDF>`
+
+	feed, err := ParseFeed("http://example.org/rdf.xml", data)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if feed.FeedURL != "http://example.org/rdf.xml" {
+		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
+	}
+
+	if feed.SiteURL != "http://example.org/blog" {
+		t.Errorf("Incorrect site URL, got: %s", feed.SiteURL)
+	}
+
+	if feed.Entries[0].URL != "http://example.org/blog/article.html" {
+		t.Errorf("Incorrect entry URL, got: %s", feed.Entries[0].URL)
+	}
+}
+
 func TestParseJson(t *testing.T) {
 	data := `{
 		"version": "https://jsonfeed.org/version/1",
@@ -119,7 +230,7 @@ func TestParseJson(t *testing.T) {
 		]
 	}`
 
-	feed, err := ParseFeed(data)
+	feed, err := ParseFeed("https://example.org/feed.json", data)
 	if err != nil {
 		t.Error(err)
 	}
@@ -129,6 +240,43 @@ func TestParseJson(t *testing.T) {
 	}
 }
 
+func TestParseJsonFeedWithRelativeURL(t *testing.T) {
+	data := `{
+		"version": "https://jsonfeed.org/version/1",
+		"title": "My Example Feed",
+		"home_page_url": "/blog",
+		"feed_url": "/blog/feed.json",
+		"items": [
+			{
+				"id": "2",
+				"content_text": "This is a second item.",
+				"url": "/blog/article.html"
+			}
+		]
+	}`
+
+	feed, err := ParseFeed("https://example.org/blog/feed.json", data)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if feed.Title != "My Example Feed" {
+		t.Errorf("Incorrect title, got: %s", feed.Title)
+	}
+
+	if feed.FeedURL != "https://example.org/blog/feed.json" {
+		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
+	}
+
+	if feed.SiteURL != "https://example.org/blog" {
+		t.Errorf("Incorrect site URL, got: %s", feed.SiteURL)
+	}
+
+	if feed.Entries[0].URL != "https://example.org/blog/article.html" {
+		t.Errorf("Incorrect entry URL, got: %s", feed.Entries[0].URL)
+	}
+}
+
 func TestParseUnknownFeed(t *testing.T) {
 	data := `
 		<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
@@ -142,14 +290,14 @@ func TestParseUnknownFeed(t *testing.T) {
 		</html>
 	`
 
-	_, err := ParseFeed(data)
+	_, err := ParseFeed("https://example.org/", data)
 	if err == nil {
 		t.Error("ParseFeed must returns an error")
 	}
 }
 
 func TestParseEmptyFeed(t *testing.T) {
-	_, err := ParseFeed("")
+	_, err := ParseFeed("", "")
 	if err == nil {
 		t.Error("ParseFeed must returns an error")
 	}
@@ -191,7 +339,7 @@ func TestDifferentEncodingWithResponse(t *testing.T) {
 			t.Fatalf(`Encoding error for %q: %v`, tc.filename, encodingErr)
 		}
 
-		feed, parseErr := ParseFeed(r.BodyAsString())
+		feed, parseErr := ParseFeed("https://example.org/", r.BodyAsString())
 		if parseErr != nil {
 			t.Fatalf(`Parsing error for %q - %q: %v`, tc.filename, tc.contentType, parseErr)
 		}

reader/rdf/parser.go

@@ -13,7 +13,7 @@ import (
 )
 
 // Parse returns a normalized feed struct from a RDF feed.
-func Parse(data io.Reader) (*model.Feed, *errors.LocalizedError) {
+func Parse(baseURL string, data io.Reader) (*model.Feed, *errors.LocalizedError) {
 	feed := new(rdfFeed)
 	decoder := xml.NewDecoder(data)
 	err := decoder.Decode(feed)
@@ -21,5 +21,5 @@ func Parse(data io.Reader) (*model.Feed, *errors.LocalizedError) {
 		return nil, errors.NewLocalizedError("Unable to parse RDF feed: %q", err)
 	}
 
-	return feed.Transform(), nil
+	return feed.Transform(baseURL), nil
 }

reader/rdf/parser_test.go

@@ -76,7 +76,7 @@ func TestParseRDFSample(t *testing.T) {
 
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://xml.com/pub/rdf.xml", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -85,7 +85,7 @@ func TestParseRDFSample(t *testing.T) {
 		t.Errorf("Incorrect title, got: %s", feed.Title)
 	}
 
-	if feed.FeedURL != "" {
+	if feed.FeedURL != "http://xml.com/pub/rdf.xml" {
 		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
 	}
 
@@ -187,7 +187,7 @@ func TestParseRDFSampleWithDublinCore(t *testing.T) {
 
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://meerkat.oreillynet.com/feed.rdf", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -196,7 +196,7 @@ func TestParseRDFSampleWithDublinCore(t *testing.T) {
 		t.Errorf("Incorrect title, got: %s", feed.Title)
 	}
 
-	if feed.FeedURL != "" {
+	if feed.FeedURL != "http://meerkat.oreillynet.com/feed.rdf" {
 		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
 	}
 
@@ -254,7 +254,7 @@ func TestParseItemWithOnlyFeedAuthor(t *testing.T) {
 	  </item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://meerkat.oreillynet.com", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -279,7 +279,7 @@ func TestParseItemRelativeURL(t *testing.T) {
 	  </item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://meerkat.oreillynet.com", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -308,7 +308,7 @@ func TestParseItemWithoutLink(t *testing.T) {
 	  </item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://meerkat.oreillynet.com", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -339,7 +339,7 @@ func TestParseItemWithDublicCoreDate(t *testing.T) {
 	  </item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -365,7 +365,7 @@ func TestParseItemWithoutDate(t *testing.T) {
 	  </item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -379,7 +379,7 @@ func TestParseItemWithoutDate(t *testing.T) {
 
 func TestParseInvalidXml(t *testing.T) {
 	data := `garbage`
-	_, err := Parse(bytes.NewBufferString(data))
+	_, err := Parse("http://example.org", bytes.NewBufferString(data))
 	if err == nil {
 		t.Fatal("Parse should returns an error")
 	}
@@ -394,7 +394,7 @@ func TestParseFeedWithHTMLEntity(t *testing.T) {
 	  </channel>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -413,7 +413,7 @@ func TestParseFeedWithInvalidCharacterEntity(t *testing.T) {
 	  </channel>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -469,7 +469,7 @@ func TestParseFeedWithURLWrappedInSpaces(t *testing.T) {
 	</item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://biorxiv.org", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -504,7 +504,7 @@ func TestParseRDFWithContentEncoded(t *testing.T) {
 		</item>
 	</rdf:RDF>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}

reader/rdf/rdf.go

@@ -25,10 +25,15 @@ type rdfFeed struct {
 	DublinCoreFeedElement
 }
 
-func (r *rdfFeed) Transform() *model.Feed {
+func (r *rdfFeed) Transform(baseURL string) *model.Feed {
+	var err error
 	feed := new(model.Feed)
 	feed.Title = sanitizer.StripTags(r.Title)
-	feed.SiteURL = r.Link
+	feed.FeedURL = baseURL
+	feed.SiteURL, err = url.AbsoluteURL(baseURL, r.Link)
+	if err != nil {
+		feed.SiteURL = r.Link
+	}
 
 	for _, item := range r.Items {
 		entry := item.Transform()

reader/rss/parser.go

@@ -13,7 +13,7 @@ import (
 )
 
 // Parse returns a normalized feed struct from a RSS feed.
-func Parse(data io.Reader) (*model.Feed, *errors.LocalizedError) {
+func Parse(baseURL string, data io.Reader) (*model.Feed, *errors.LocalizedError) {
 	feed := new(rssFeed)
 	decoder := xml.NewDecoder(data)
 	err := decoder.Decode(feed)
@@ -21,5 +21,5 @@ func Parse(data io.Reader) (*model.Feed, *errors.LocalizedError) {
 		return nil, errors.NewLocalizedError("Unable to parse RSS feed: %q", err)
 	}
 
-	return feed.Transform(), nil
+	return feed.Transform(baseURL), nil
 }

reader/rss/parser_test.go

@@ -54,7 +54,7 @@ func TestParseRss2Sample(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("http://liftoff.msfc.nasa.gov/rss.xml", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -63,7 +63,7 @@ func TestParseRss2Sample(t *testing.T) {
 		t.Errorf("Incorrect title, got: %s", feed.Title)
 	}
 
-	if feed.FeedURL != "" {
+	if feed.FeedURL != "http://liftoff.msfc.nasa.gov/rss.xml" {
 		t.Errorf("Incorrect feed URL, got: %s", feed.FeedURL)
 	}
 
@@ -105,7 +105,7 @@ func TestParseFeedWithoutTitle(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -126,7 +126,7 @@ func TestParseEntryWithoutTitle(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -149,7 +149,7 @@ func TestParseEntryWithMediaTitle(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -171,7 +171,7 @@ func TestParseEntryWithDCTitleOnly(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -192,7 +192,7 @@ func TestParseEntryWithoutLink(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -218,7 +218,7 @@ func TestParseEntryWithAtomLink(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -241,7 +241,7 @@ func TestParseEntryWithMultipleAtomLinks(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -261,7 +261,7 @@ func TestParseFeedURLWithAtomLink(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -289,7 +289,7 @@ func TestParseFeedWithWebmaster(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -316,7 +316,7 @@ func TestParseFeedWithManagingEditor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -343,7 +343,7 @@ func TestParseEntryWithAuthorAndInnerHTML(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -375,7 +375,7 @@ func TestParseEntryWithNonStandardAtomAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -404,7 +404,7 @@ func TestParseEntryWithAtomAuthorEmail(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -433,7 +433,7 @@ func TestParseEntryWithAtomAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -459,7 +459,7 @@ func TestParseEntryWithDublinCoreAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -485,7 +485,7 @@ func TestParseEntryWithItunesAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -511,7 +511,7 @@ func TestParseFeedWithItunesAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -540,7 +540,7 @@ func TestParseFeedWithItunesOwner(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -568,7 +568,7 @@ func TestParseFeedWithItunesOwnerEmail(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -594,7 +594,7 @@ func TestParseEntryWithGooglePlayAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -620,7 +620,7 @@ func TestParseFeedWithGooglePlayAuthor(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -648,7 +648,7 @@ func TestParseEntryWithDublinCoreDate(t *testing.T) {
 				</channel>
 			</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -676,7 +676,7 @@ func TestParseEntryWithContentEncoded(t *testing.T) {
 		</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -700,7 +700,7 @@ func TestParseEntryWithFeedBurnerLink(t *testing.T) {
 		</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -726,7 +726,7 @@ func TestParseEntryTitleWithWhitespaces(t *testing.T) {
 	</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -756,7 +756,7 @@ func TestParseEntryWithEnclosures(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -804,7 +804,7 @@ func TestParseEntryWithEmptyEnclosureURL(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -841,7 +841,7 @@ func TestParseEntryWithFeedBurnerEnclosures(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -882,7 +882,7 @@ func TestParseEntryWithRelativeURL(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -908,7 +908,7 @@ func TestParseEntryWithCommentsURL(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -933,7 +933,7 @@ func TestParseEntryWithInvalidCommentsURL(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -945,7 +945,7 @@ func TestParseEntryWithInvalidCommentsURL(t *testing.T) {
 
 func TestParseInvalidXml(t *testing.T) {
 	data := `garbage`
-	_, err := Parse(bytes.NewBufferString(data))
+	_, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err == nil {
 		t.Error("Parse should returns an error")
 	}
@@ -960,7 +960,7 @@ func TestParseWithHTMLEntity(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -979,7 +979,7 @@ func TestParseWithInvalidCharacterEntity(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1013,7 +1013,7 @@ func TestParseEntryWithMediaGroup(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1071,7 +1071,7 @@ func TestParseEntryWithMediaContent(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1122,7 +1122,7 @@ func TestParseEntryWithMediaPeerLink(t *testing.T) {
 		</channel>
 		</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1174,7 +1174,7 @@ func TestEntryDescriptionFromItunesSummary(t *testing.T) {
 		</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1205,7 +1205,7 @@ func TestEntryDescriptionFromItunesSubtitle(t *testing.T) {
 		</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -1239,7 +1239,7 @@ func TestEntryDescriptionFromGooglePlayDescription(t *testing.T) {
 		</channel>
 	</rss>`
 
-	feed, err := Parse(bytes.NewBufferString(data))
+	feed, err := Parse("https://example.org/", bytes.NewBufferString(data))
 	if err != nil {
 		t.Fatal(err)
 	}

reader/rss/rss.go

@@ -35,12 +35,24 @@ type rssFeed struct {
 	PodcastFeedElement
 }
 
-func (r *rssFeed) Transform() *model.Feed {
+func (r *rssFeed) Transform(baseURL string) *model.Feed {
+	var err error
+
 	feed := new(model.Feed)
-	feed.SiteURL = r.siteURL()
-	feed.FeedURL = r.feedURL()
-	feed.Title = strings.TrimSpace(r.Title)
 
+	siteURL := r.siteURL()
+	feed.SiteURL, err = url.AbsoluteURL(baseURL, siteURL)
+	if err != nil {
+		feed.SiteURL = siteURL
+	}
+
+	feedURL := r.feedURL()
+	feed.FeedURL, err = url.AbsoluteURL(baseURL, feedURL)
+	if err != nil {
+		feed.FeedURL = feedURL
+	}
+
+	feed.Title = strings.TrimSpace(r.Title)
 	if feed.Title == "" {
 		feed.Title = feed.SiteURL
 	}

url/url_test.go

@@ -23,13 +23,13 @@ func TestIsAbsoluteURL(t *testing.T) {
 
 func TestAbsoluteURL(t *testing.T) {
 	scenarios := [][]string{
-		[]string{"https://example.org/path/file.ext", "https://example.org/folder/", "/path/file.ext"},
-		[]string{"https://example.org/folder/path/file.ext", "https://example.org/folder/", "path/file.ext"},
-		[]string{"https://example.org/path/file.ext", "https://example.org/folder", "path/file.ext"},
-		[]string{"https://example.org/path/file.ext", "https://example.org/folder/", "https://example.org/path/file.ext"},
-		[]string{"https://static.example.org/path/file.ext", "https://www.example.org/", "//static.example.org/path/file.ext"},
-		[]string{"magnet:?xt=urn:btih:c12fe1c06bba254a9dc9f519b335aa7c1367a88a", "https://www.example.org/", "magnet:?xt=urn:btih:c12fe1c06bba254a9dc9f519b335aa7c1367a88a"},
-		[]string{"magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7", "https://www.example.org/", "magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7"},
+		{"https://example.org/path/file.ext", "https://example.org/folder/", "/path/file.ext"},
+		{"https://example.org/folder/path/file.ext", "https://example.org/folder/", "path/file.ext"},
+		{"https://example.org/path/file.ext", "https://example.org/folder", "path/file.ext"},
+		{"https://example.org/path/file.ext", "https://example.org/folder/", "https://example.org/path/file.ext"},
+		{"https://static.example.org/path/file.ext", "https://www.example.org/", "//static.example.org/path/file.ext"},
+		{"magnet:?xt=urn:btih:c12fe1c06bba254a9dc9f519b335aa7c1367a88a", "https://www.example.org/", "magnet:?xt=urn:btih:c12fe1c06bba254a9dc9f519b335aa7c1367a88a"},
+		{"magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7", "https://www.example.org/", "magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7"},
 	}
 
 	for _, scenario := range scenarios {