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[feature] Add extra opengraph meta tags (#4154)

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# Description

> If this is a code change, please include a summary of what you've coded, and link to the issue(s) it closes/implements.
>
> If this is a documentation change, please briefly describe what you've changed and why.

Update our opengraph meta tag code stuff:

- Use `audio` and `video` types where appropriate.
- Include fall back to `image` types.
- Include `twitter:card=summary` or `twitter:card=summary_large_image` where appropriate (closes https://codeberg.org/superseriousbusiness/gotosocial/issues/2776)
- Include avatar description where possible.
- Include mime type for media.
- Set `modified_time` properly based on latest edit time.

Examples

Status with one image attachment, that's been edited:

```html
<meta property="og:locale" content="en">
<meta property="og:type" content="article">
<meta property="og:title" content="Post by Kip Van Den Bos, salad enjoyer, @tobi@goblin.technology">
<meta property="og:url" content="https://goblin.technology/@tobi/statuses/01JE3BQPNHWNHSNM0KS78X321Q">
<meta property="og:site_name" content="goblin.technology">
<meta property="og:description" content="cowards: &#34;I&#39;ll be a few minutes late, sorry!&#34; me:">
<meta property="og:article:publisher" content="https://goblin.technology/@tobi">
<meta property="og:article:author" content="https://goblin.technology/@tobi">
<meta property="og:article:modified_time" content="2025-04-22T07:24:49.773Z">
<meta property="og:article:published_time" content="2024-12-02T09:37:58.449Z">
<meta property="og:image" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01JE3BPJ1TGMV6H6E8VY0ED5XA.png">
<meta property="og:image:type" content="image/png">
<meta property="og:image:width" content="1224">
<meta property="og:image:height" content="368">
<meta property="og:image:alt" content="Screenshot of a signal conversation where I wrote &#34;Just gonna smash out a quick poo&#34; and my friend responded with a sad face.">
<meta property="og:image" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01J4YBM16ES6C1ENKZC8MC04BD.gif">
<meta property="og:image:type" content="image/gif">
<meta property="og:image:width" content="38">
<meta property="og:image:height" content="49">
<meta property="og:image:alt" content="Avatar for tobi: A 90&#39;s style gif of a black and white skull chattering happily.">
<meta property="og:image" content="https://goblin.technology/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/attachment/original/01J387PFPNKQWWNY9YQM67WA1T.gif">
<meta property="og:image:type" content="image/gif">
<meta property="og:image:alt" content="Little green peglin goblin bouncing happily.">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01JE3BPJ1TGMV6H6E8VY0ED5XA.png">
<meta name="twitter:image:alt" content="Screenshot of a signal conversation where I wrote &#34;Just gonna smash out a quick poo&#34; and my friend responded with a sad face.">
```

Status with one audio file (with thumbnail):

```html
<meta property="og:locale" content="en">
<meta property="og:type" content="article">
<meta property="og:title" content="Post by Kip Van Den Bos, salad enjoyer, @tobi@goblin.technology">
<meta property="og:url" content="https://goblin.technology/@tobi/statuses/01JSV5BQ585HB4R8NPK4ANTG91">
<meta property="og:site_name" content="goblin.technology">
<meta property="og:description" content="service top anthem imo">
<meta property="og:article:publisher" content="https://goblin.technology/@tobi">
<meta property="og:article:author" content="https://goblin.technology/@tobi">
<meta property="og:article:modified_time" content="2025-04-27T08:21:00.712Z">
<meta property="og:article:published_time" content="2025-04-27T08:21:00.712Z">
<meta property="og:audio" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01JSV5AJ4RF3E6DATCSW8SAY93.mp3">
<meta property="og:audio:secure_url" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01JSV5AJ4RF3E6DATCSW8SAY93.mp3">
<meta property="og:audio:type" content="audio/mpeg">
<meta property="og:audio:alt" content="Sanctified by Nine Inch Nails, from Pretty Hate Machine">
<meta property="og:image" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/small/01JSV5AJ4RF3E6DATCSW8SAY93.webp">
<meta property="og:image:type" content="image/webp">
<meta property="og:image:width" content="500">
<meta property="og:image:height" content="500">
<meta property="og:image:alt" content="Sanctified by Nine Inch Nails, from Pretty Hate Machine">
<meta property="og:image" content="https://goblin.technology/fileserver/016T5Q3SQKBT337DAKVSKNXXW1/attachment/original/01J4YBM16ES6C1ENKZC8MC04BD.gif">
<meta property="og:image:type" content="image/gif">
<meta property="og:image:width" content="38">
<meta property="og:image:height" content="49">
<meta property="og:image:alt" content="Avatar for tobi: A 90&#39;s style gif of a black and white skull chattering happily.">
<meta property="og:image" content="https://goblin.technology/fileserver/01BPSX2MKCRVMD4YN4D71G9CP5/attachment/original/01J387PFPNKQWWNY9YQM67WA1T.gif">
<meta property="og:image:type" content="image/gif">
<meta property="og:image:alt" content="Little green peglin goblin bouncing happily.">
<meta name="twitter:card" content="summary">
```

## Checklist

Please put an x inside each checkbox to indicate that you've read and followed it: `[ ]` -> `[x]`

If this is a documentation change, only the first checkbox must be filled (you can delete the others if you want).

- [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md).
- [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
- [x] I/we have not leveraged AI to create the proposed changes.
- [x] I/we have performed a self-review of added code.
- [x] I/we have written code that is legible and maintainable by others.
- [x] I/we have commented the added code, particularly in hard-to-understand areas.
- [ ] I/we have made any necessary changes to documentation.
- [x] I/we have added tests that cover new code.
- [x] I/we have run tests and they pass locally with the changes.
- [x] I/we have run `go fmt ./...` and `golangci-lint run`.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4154
Reviewed-by: Daenney <daenney@noreply.codeberg.org>
Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Co-committed-by: tobi <tobi.smethurst@protonmail.com>
This commit is contained in:
tobi
2025-05-08 11:11:25 +00:00
committed by tobi
parent 4c96e2571d
commit 700b7eaab7
3 changed files with 258 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

243
internal/api/util/opengraph.go
View File

@ -19,20 +19,21 @@ package util
import ( import (
"html" "html"
"slices"
"strconv" "strconv"
"strings" "strings"
apimodel "code.superseriousbusiness.org/gotosocial/internal/api/model" apimodel "code.superseriousbusiness.org/gotosocial/internal/api/model"
"code.superseriousbusiness.org/gotosocial/internal/text" "code.superseriousbusiness.org/gotosocial/internal/text"
"code.superseriousbusiness.org/gotosocial/internal/util"
) )
const maxOGDescriptionLength = 300
// OGMeta represents supported OpenGraph Meta tags // OGMeta represents supported OpenGraph Meta tags
// //
// see eg https://ogp.me/ // see eg https://ogp.me/
type OGMeta struct { type OGMeta struct {
// vanilla og tags /* Vanilla og tags */
Title string // og:title Title string // og:title
Type string // og:type Type string // og:type
Locale string // og:locale Locale string // og:locale
@ -40,26 +41,57 @@ type OGMeta struct {
SiteName string // og:site_name SiteName string // og:site_name
Description string // og:description Description string // og:description
// image tags // Zero or more media entries of type image,
Image string // og:image // video, or audio (https://ogp.me/#array).
ImageWidth string // og:image:width Media []OGMedia
ImageHeight string // og:image:height
ImageAlt string // og:image:alt /* Article tags. */
// article tags
ArticlePublisher string // article:publisher ArticlePublisher string // article:publisher
ArticleAuthor string // article:author ArticleAuthor string // article:author
ArticleModifiedTime string // article:modified_time ArticleModifiedTime string // article:modified_time
ArticlePublishedTime string // article:published_time ArticlePublishedTime string // article:published_time
// profile tags /* Profile tags. */
ProfileUsername string // profile:username ProfileUsername string // profile:username
/*
Twitter card stuff
https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/abouts-cards
*/
// Set to media URL for media posts.
TwitterSummaryLargeImage string
TwitterImageAlt string
}
func (o *OGMeta) prependMedia(i ...OGMedia) {
if len(o.Media) == 0 {
// Set as
// only entries.
o.Media = i
} else {
// Prepend as higher
// priority entries.
o.Media = slices.Insert(o.Media, 0, i...)
}
}
// OGMedia represents one OpenGraph media
// entry of type image, video, or audio.
type OGMedia struct {
OGType string // image/video/audio
URL string // og:${type}
MIMEType string // og:${type}:type
Width string // og:${type}:width
Height string // og:${type}:height
Alt string // og:${type}:alt
} }
// OGBase returns an *ogMeta suitable for serving at // OGBase returns an *ogMeta suitable for serving at
// the base root of an instance. It also serves as a // the base root of an instance. It also serves as a
// foundation for building account / status ogMeta on // foundation for building account / status ogMeta.
// top of.
func OGBase(instance *apimodel.InstanceV1) *OGMeta { func OGBase(instance *apimodel.InstanceV1) *OGMeta {
var locale string var locale string
if len(instance.Languages) > 0 { if len(instance.Languages) > 0 {
@ -73,9 +105,14 @@ func OGBase(instance *apimodel.InstanceV1) *OGMeta {
URL: instance.URI, URL: instance.URI,
SiteName: instance.AccountDomain, SiteName: instance.AccountDomain,
Description: ParseDescription(instance.ShortDescription), Description: ParseDescription(instance.ShortDescription),
Media: []OGMedia{
Image: instance.Thumbnail, {
ImageAlt: instance.ThumbnailDescription, OGType: "image",
URL: instance.Thumbnail,
Alt: instance.ThumbnailDescription,
MIMEType: instance.ThumbnailType,
},
},
} }
return og return og
@ -84,67 +121,154 @@ func OGBase(instance *apimodel.InstanceV1) *OGMeta {
// WithAccount uses the given account to build an ogMeta // WithAccount uses the given account to build an ogMeta
// struct specific to that account. It's suitable for serving // struct specific to that account. It's suitable for serving
// at account profile pages. // at account profile pages.
func (og *OGMeta) WithAccount(account *apimodel.WebAccount) *OGMeta { func (o *OGMeta) WithAccount(acct *apimodel.WebAccount) *OGMeta {
og.Title = AccountTitle(account, og.SiteName) o.Title = AccountTitle(acct, o.SiteName)
og.Type = "profile" o.ProfileUsername = acct.Username
og.URL = account.URL o.Type = "profile"
if account.Note != "" { o.URL = acct.URL
og.Description = ParseDescription(account.Note) if acct.Note != "" {
o.Description = ParseDescription(acct.Note)
} else { } else {
og.Description = `content="This GoToSocial user hasn't written a bio yet!"` const desc = "This GoToSocial user hasn't written a bio yet!"
o.Description = desc
} }
og.Image = account.Avatar // Add avatar image.
og.ImageAlt = "Avatar for " + account.Username o.prependMedia(ogImgForAcct(acct))
og.ProfileUsername = account.Username return o
}
return og // util funct to return OGImage using account.
func ogImgForAcct(account *apimodel.WebAccount) OGMedia {
ogMedia := OGMedia{
OGType: "image",
URL: account.Avatar,
Alt: "Avatar for " + account.Username,
}
if desc := account.AvatarDescription; desc != "" {
ogMedia.Alt += ": " + desc
}
// Add extra info if not default avi.
if a := account.AvatarAttachment; a != nil {
ogMedia.MIMEType = a.MIMEType
ogMedia.Width = strconv.Itoa(a.Meta.Original.Width)
ogMedia.Height = strconv.Itoa(a.Meta.Original.Height)
}
return ogMedia
} }
// WithStatus uses the given status to build an ogMeta // WithStatus uses the given status to build an ogMeta
// struct specific to that status. It's suitable for serving // struct specific to that status. It's suitable for serving
// at status pages. // at status pages.
func (og *OGMeta) WithStatus(status *apimodel.WebStatus) *OGMeta { func (o *OGMeta) WithStatus(status *apimodel.WebStatus) *OGMeta {
og.Title = "Post by " + AccountTitle(status.Account, og.SiteName) o.Title = "Post by " + AccountTitle(status.Account, o.SiteName)
og.Type = "article" o.Type = "article"
if status.Language != nil { if status.Language != nil {
og.Locale = *status.Language o.Locale = *status.Language
} }
og.URL = status.URL o.URL = status.URL
switch { switch {
case status.SpoilerText != "": case status.SpoilerText != "":
og.Description = ParseDescription("CW: " + status.SpoilerText) o.Description = ParseDescription("CW: " + status.SpoilerText)
case status.Text != "": case status.Text != "":
og.Description = ParseDescription(status.Text) o.Description = ParseDescription(status.Text)
default: default:
og.Description = og.Title o.Description = o.Title
} }
if !status.Sensitive && len(status.MediaAttachments) > 0 { // Prepend account image.
a := status.MediaAttachments[0] o.prependMedia(ogImgForAcct(status.Account))
og.ImageWidth = strconv.Itoa(a.Meta.Small.Width) if l := len(status.MediaAttachments); l != 0 && !status.Sensitive {
og.ImageHeight = strconv.Itoa(a.Meta.Small.Height)
if a.PreviewURL != nil { // Take first not "unknown"
og.Image = *a.PreviewURL // attachment as the "main" one.
for _, a := range status.MediaAttachments {
if a.Type == "unknown" {
// Skip unknown.
continue
} }
if a.Description != nil { // Start with
og.ImageAlt = *a.Description // common media tags.
} desc := util.PtrOrZero(a.Description)
} else { ogMedia := OGMedia{
og.Image = status.Account.Avatar URL: *a.URL,
og.ImageAlt = "Avatar for " + status.Account.Username MIMEType: a.MIMEType,
Alt: desc,
} }
og.ArticlePublisher = status.Account.URL // Gather ogMedias for
og.ArticleAuthor = status.Account.URL // this attachment.
og.ArticlePublishedTime = status.CreatedAt ogMedias := []OGMedia{}
og.ArticleModifiedTime = status.CreatedAt
return og // Add further tags
// depending on type.
switch a.Type {
case "image":
ogMedia.OGType = "image"
ogMedia.Width = strconv.Itoa(a.Meta.Original.Width)
ogMedia.Height = strconv.Itoa(a.Meta.Original.Height)
// If this image is the only piece of media,
// set TwitterSummaryLargeImage to indicate
// that a large image summary is preferred.
if l == 1 {
o.TwitterSummaryLargeImage = *a.URL
o.TwitterImageAlt = desc
}
case "audio":
ogMedia.OGType = "audio"
case "video", "gifv":
ogMedia.OGType = "video"
ogMedia.Width = strconv.Itoa(a.Meta.Original.Width)
ogMedia.Height = strconv.Itoa(a.Meta.Original.Height)
}
// Add this to our gathered entries.
ogMedias = append(ogMedias, ogMedia)
if a.Type != "image" {
// Add static/thumbnail
// for non-images.
ogMedias = append(
ogMedias,
OGMedia{
OGType: "image",
URL: *a.PreviewURL,
MIMEType: a.PreviewMIMEType,
Width: strconv.Itoa(a.Meta.Small.Width),
Height: strconv.Itoa(a.Meta.Small.Height),
Alt: util.PtrOrZero(a.Description),
},
)
}
// Prepend gathered entries.
//
// This will cause the full-size
// entry to appear before its
// thumbnail entry (if set).
o.prependMedia(ogMedias...)
// Done!
break
}
}
o.ArticlePublisher = status.Account.URL
o.ArticleAuthor = status.Account.URL
o.ArticlePublishedTime = status.CreatedAt
o.ArticleModifiedTime = util.PtrOrValue(status.EditedAt, status.CreatedAt)
return o
} }
// AccountTitle parses a page title from account and accountDomain // AccountTitle parses a page title from account and accountDomain
@ -159,26 +283,27 @@ func AccountTitle(account *apimodel.WebAccount, accountDomain string) string {
} }
// ParseDescription returns a string description which is // ParseDescription returns a string description which is
// safe to use as a template.HTMLAttr inside templates. // safe to use as the content of a `content="..."` attribute.
func ParseDescription(in string) string { func ParseDescription(in string) string {
i := text.StripHTMLFromText(in) i := text.StripHTMLFromText(in)
i = strings.ReplaceAll(i, "\n", " ") i = strings.ReplaceAll(i, "\n", " ")
i = strings.Join(strings.Fields(i), " ") i = strings.Join(strings.Fields(i), " ")
i = html.EscapeString(i) i = html.EscapeString(i)
i = strings.ReplaceAll(i, `\`, "&bsol;") i = strings.ReplaceAll(i, `\`, "&bsol;")
i = truncate(i, maxOGDescriptionLength) return truncate(i)
return `content="` + i + `"`
} }
// truncate trims given string to // truncate trims string
// specified length (in runes). // to maximum 160 runes.
func truncate(s string, l int) string { func truncate(s string) string {
const truncateLen = 160
r := []rune(s) r := []rune(s)
if len(r) < l { if len(r) < truncateLen {
// No need // No need
// to trim. // to trim.
return s return s
} }
return string(r[:l]) + "..." return string(r[:truncateLen-3]) + "…"
} }

47
internal/api/util/opengraph_test.go
View File

@ -18,7 +18,6 @@
package util package util
import ( import (
"fmt"
"testing" "testing"
apimodel "code.superseriousbusiness.org/gotosocial/internal/api/model" apimodel "code.superseriousbusiness.org/gotosocial/internal/api/model"
@ -40,7 +39,7 @@ func (suite *OpenGraphTestSuite) TestParseDescription() {
for _, tt := range tests { for _, tt := range tests {
tt := tt tt := tt
suite.Run(tt.name, func() { suite.Run(tt.name, func() {
suite.Equal(fmt.Sprintf("content=\"%s\"", tt.exp), ParseDescription(tt.in)) suite.Equal(tt.exp, ParseDescription(tt.in))
}) })
} }
} }
@ -49,6 +48,8 @@ func (suite *OpenGraphTestSuite) TestWithAccountWithNote() {
baseMeta := OGBase(&apimodel.InstanceV1{ baseMeta := OGBase(&apimodel.InstanceV1{
AccountDomain: "example.org", AccountDomain: "example.org",
Languages: []string{"en"}, Languages: []string{"en"},
Thumbnail: "https://example.org/instance-avatar.webp",
ThumbnailType: "image/webp",
}) })
acct := &apimodel.Account{ acct := &apimodel.Account{
@ -57,6 +58,7 @@ func (suite *OpenGraphTestSuite) TestWithAccountWithNote() {
URL: "https://example.org/@example_account", URL: "https://example.org/@example_account",
Note: "<p>This is my profile, read it and weep! Weep then!</p>", Note: "<p>This is my profile, read it and weep! Weep then!</p>",
Username: "example_account", Username: "example_account",
Avatar: "https://example.org/avatar.jpg",
} }
accountMeta := baseMeta.WithAccount(&apimodel.WebAccount{Account: acct}) accountMeta := baseMeta.WithAccount(&apimodel.WebAccount{Account: acct})
@ -67,11 +69,20 @@ func (suite *OpenGraphTestSuite) TestWithAccountWithNote() {
Locale: "en", Locale: "en",
URL: "https://example.org/@example_account", URL: "https://example.org/@example_account",
SiteName: "example.org", SiteName: "example.org",
Description: "content=\"This is my profile, read it and weep! Weep then!\"", Description: "This is my profile, read it and weep! Weep then!",
Image: "", Media: []OGMedia{
ImageWidth: "", {
ImageHeight: "", OGType: "image",
ImageAlt: "Avatar for example_account", Alt: "Avatar for example_account",
URL: "https://example.org/avatar.jpg",
},
{
// Instance avatar.
OGType: "image",
URL: "https://example.org/instance-avatar.webp",
MIMEType: "image/webp",
},
},
ArticlePublisher: "", ArticlePublisher: "",
ArticleAuthor: "", ArticleAuthor: "",
ArticleModifiedTime: "", ArticleModifiedTime: "",
@ -84,6 +95,8 @@ func (suite *OpenGraphTestSuite) TestWithAccountNoNote() {
baseMeta := OGBase(&apimodel.InstanceV1{ baseMeta := OGBase(&apimodel.InstanceV1{
AccountDomain: "example.org", AccountDomain: "example.org",
Languages: []string{"en"}, Languages: []string{"en"},
Thumbnail: "https://example.org/instance-avatar.webp",
ThumbnailType: "image/webp",
}) })
acct := &apimodel.Account{ acct := &apimodel.Account{
@ -92,6 +105,7 @@ func (suite *OpenGraphTestSuite) TestWithAccountNoNote() {
URL: "https://example.org/@example_account", URL: "https://example.org/@example_account",
Note: "", // <- empty Note: "", // <- empty
Username: "example_account", Username: "example_account",
Avatar: "https://example.org/avatar.jpg",
} }
accountMeta := baseMeta.WithAccount(&apimodel.WebAccount{Account: acct}) accountMeta := baseMeta.WithAccount(&apimodel.WebAccount{Account: acct})
@ -102,11 +116,20 @@ func (suite *OpenGraphTestSuite) TestWithAccountNoNote() {
Locale: "en", Locale: "en",
URL: "https://example.org/@example_account", URL: "https://example.org/@example_account",
SiteName: "example.org", SiteName: "example.org",
Description: "content=\"This GoToSocial user hasn't written a bio yet!\"", Description: "This GoToSocial user hasn't written a bio yet!",
Image: "", Media: []OGMedia{
ImageWidth: "", {
ImageHeight: "", OGType: "image",
ImageAlt: "Avatar for example_account", Alt: "Avatar for example_account",
URL: "https://example.org/avatar.jpg",
},
{
// Instance avatar.
OGType: "image",
URL: "https://example.org/instance-avatar.webp",
MIMEType: "image/webp",
},
},
ArticlePublisher: "", ArticlePublisher: "",
ArticleAuthor: "", ArticleAuthor: "",
ArticleModifiedTime: "", ArticleModifiedTime: "",

36
web/template/page_ogmeta.tmpl
View File

@ -25,14 +25,14 @@
{{- with .ogMeta }} {{- with .ogMeta }}
{{- if .Locale }} {{- if .Locale }}
<meta name="og:locale" content="{{- .Locale -}}"> <meta property="og:locale" content="{{- .Locale -}}">
{{- else }} {{- else }}
{{- end }} {{- end }}
<meta property="og:type" content="{{- .Type -}}"> <meta property="og:type" content="{{- .Type -}}">
<meta property="og:title" content="{{- demojify .Title | noescape -}}"> <meta property="og:title" content="{{- demojify .Title | noescape -}}">
<meta property="og:url" content="{{- .URL -}}"> <meta property="og:url" content="{{- .URL -}}">
<meta property="og:site_name" content="{{- .SiteName -}}"> <meta property="og:site_name" content="{{- .SiteName -}}">
<meta property="og:description" {{ demojify .Description | noescapeAttr -}}> <meta property="og:description" content="{{- demojify .Description | noescape -}}">
{{- if .ArticlePublisher }} {{- if .ArticlePublisher }}
<meta property="og:article:publisher" content="{{ .ArticlePublisher }}"> <meta property="og:article:publisher" content="{{ .ArticlePublisher }}">
<meta property="og:article:author" content="{{ .ArticleAuthor }}"> <meta property="og:article:author" content="{{ .ArticleAuthor }}">
@ -44,14 +44,34 @@
<meta property="og:profile:username" content="{{- .ProfileUsername -}}"> <meta property="og:profile:username" content="{{- .ProfileUsername -}}">
{{- else }} {{- else }}
{{- end }} {{- end }}
<meta property="og:image" content="{{- .Image -}}"> {{- range $i, $m := .Media }}
{{- if .ImageAlt }} <meta property="og:{{- $m.OGType -}}" content="{{- $m.URL -}}">
<meta property="og:image:alt" content="{{- .ImageAlt -}}"> {{- if or (eq $m.OGType "video") (eq $m.OGType "audio") }}
<meta property="og:{{- $m.OGType -}}:secure_url" content="{{- $m.URL -}}">
{{- else }} {{- else }}
{{- end }} {{- end }}
{{- if .ImageWidth }} {{- if $m.MIMEType }}
<meta property="og:image:width" content="{{ .ImageWidth }}"> <meta property="og:{{- $m.OGType -}}:type" content="{{ $m.MIMEType }}">
<meta property="og:image:height" content="{{ .ImageHeight }}"> {{- else }}
{{- end }}
{{- if $m.Width }}
<meta property="og:{{- $m.OGType -}}:width" content="{{ $m.Width }}">
<meta property="og:{{- $m.OGType -}}:height" content="{{ $m.Height }}">
{{- else }}
{{- end }}
{{- if $m.Alt }}
<meta property="og:{{- $m.OGType -}}:alt" content="{{ $m.Alt }}">
{{- else }} {{- else }}
{{- end }} {{- end }}
{{- end }} {{- end }}
{{- if .TwitterSummaryLargeImage }}
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="{{- .TwitterSummaryLargeImage -}}">
{{- if .TwitterImageAlt }}
<meta name="twitter:image:alt" content="{{- .TwitterImageAlt -}}">
{{- else }}
{{- end }}
{{- else }}
<meta name="twitter:card" content="summary">
{{- end }}
{{- end }}