Support alternative text for photos

entry.go

@@ -30,13 +30,18 @@ type Entry struct {
 	syndicate      []string
 	language       string
 	translationKey string
-	images         []string
+	images         []Image
 	audio          string
 	filename       string
 	location       string
 	token          string
 }
 
+type Image struct {
+	url string
+	alt string
+}
+
 func CreateEntry(contentType ContentType, r *http.Request) (*Entry, error) {
 	if contentType == WwwForm {
 		bodyString, err := parseRequestBody(r)
@@ -113,9 +118,22 @@ func createEntryFromValueMap(values map[string][]string) (*Entry, error) {
 		entry.syndicate = syndicates
 	}
 	if photo, ok := values["photo"]; ok {
-		entry.images = photo
-	} else if photo, ok := values["photo[]"]; ok {
-		entry.images = photo
+		entry.images = append(entry.images, Image{url: photo[0]})
+	} else if photos, ok := values["photo[]"]; ok {
+		for _, photo := range photos {
+			entry.images = append(entry.images, Image{url: photo})
+		}
+	}
+	if photoAlt, ok := values["mp-photo-alt"]; ok {
+		if len(entry.images) > 0 {
+			entry.images[0].alt = photoAlt[0]
+		}
+	} else if photoAlts, ok := values["mp-photo-alt[]"]; ok {
+		for i, photoAlt := range photoAlts {
+			if len(entry.images) > i {
+				entry.images[i].alt = photoAlt
+			}
+		}
 	}
 	if audio, ok := values["audio"]; ok {
 		entry.audio = audio[0]
@@ -162,7 +180,21 @@ func createEntryFromMicroformat(mfEntry *MicroformatItem) (*Entry, error) {
 		entry.syndicate = mfEntry.Properties.MpSyndicateTo
 	}
 	if len(mfEntry.Properties.Photo) > 0 {
-		entry.images = mfEntry.Properties.Photo
+		for _, photo := range mfEntry.Properties.Photo {
+			if theString, justString := photo.(string); justString {
+				entry.images = append(entry.images, Image{url: theString})
+			} else if thePhoto, isPhoto := photo.(map[string]interface{}); isPhoto {
+				image := Image{}
+				// Micropub spec says "value" is correct, but not sure about that
+				if photoUrl, ok := thePhoto["value"].(string); ok {
+					image.url = photoUrl
+				}
+				if alt, ok := thePhoto["alt"].(string); ok {
+					image.alt = alt
+				}
+				entry.images = append(entry.images, image)
+			}
+		}
 	}
 	if len(mfEntry.Properties.Audio) > 0 {
 		entry.audio = mfEntry.Properties.Audio[0]
@@ -218,7 +250,9 @@ func computeExtraSettings(entry *Entry) error {
 			entry.translationKey = strings.TrimPrefix(text, "translationkey: ")
 		} else if strings.HasPrefix(text, "images: ") {
 			// Images
-			entry.images = strings.Split(strings.TrimPrefix(text, "images: "), ",")
+			for _, image := range strings.Split(strings.TrimPrefix(text, "images: "), ",") {
+				entry.images = append(entry.images, Image{url: image})
+			}
 		} else if strings.HasPrefix(text, "audio: ") {
 			// Audio
 			entry.audio = strings.TrimPrefix(text, "audio: ")
@@ -229,8 +263,12 @@ func computeExtraSettings(entry *Entry) error {
 	entry.content = filteredContent.String()
 	// Check if content contains images or add them
 	for _, image := range entry.images {
-		if !strings.Contains(entry.content, image) {
-			entry.content += "\n![](" + image + ")\n"
+		if !strings.Contains(entry.content, image.url) {
+			if len(image.alt) > 0 {
+				entry.content += "\n![" + image.alt + "](" + image.url + " \"" + image.alt + "\")\n"
+			} else {
+				entry.content += "\n![](" + image.url + ")\n"
+			}
 		}
 	}
 	// Compute slug if empty

microformat.go

@@ -17,6 +17,6 @@ type MicroformatProperties struct {
 	BookmarkOf    []string      `json:"bookmark-of,omitempty"`
 	MpSlug        []string      `json:"mp-slug,omitempty"`
 	MpSyndicateTo []string      `json:"mp-syndicate-to,omitempty"`
-	Photo         []string `json:"photo,omitempty"`
+	Photo         []interface{} `json:"photo,omitempty"`
 	Audio         []string      `json:"audio,omitempty"`
 }

post.go

@@ -55,9 +55,11 @@ func writeFrontMatter(entry *Entry) (frontmatter string, err error) {
 		},
 		Syndicate:      entry.syndicate,
 		TranslationKey: entry.translationKey,
-		Images:         entry.images,
 		Audio:          entry.audio,
 	}
+	for _, image := range entry.images {
+		writeFrontmatter.Images = append(writeFrontmatter.Images, image.url)
+	}
 	yamlBytes, err := yaml.Marshal(&writeFrontmatter)
 	if err != nil {
 		err = errors.New("failed marshaling frontmatter")
@@ -123,7 +125,9 @@ func readFrontMatter(frontmatter string, entry *Entry) (err error) {
 		entry.translationKey = parsedFrontmatter.TranslationKey
 	}
 	if len(parsedFrontmatter.Images) > 0 {
-		entry.images = parsedFrontmatter.Images
+		for _, image := range parsedFrontmatter.Images {
+			entry.images = append(entry.images, Image{url: image})
+		}
 	}
 	if len(parsedFrontmatter.Audio) > 0 {
 		entry.audio = parsedFrontmatter.Audio