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76021c76a0
* Split up handling of permalinks and other links in getLinkMetadata * MM-60351 Use oEmbed for YouTube links * Explicitly request json from the oEmbed provider * Fix linter * Fix type of CacheAge field * Address feedback
56 lines
1.8 KiB
Go
56 lines
1.8 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package oembed
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import (
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"encoding/json"
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"fmt"
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"io"
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)
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type OEmbedResponse struct {
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// Type can be one of "photo", "video", "link", or "rich"
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Type string `json:"type"`
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// Fields that may be defined for any response type
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Version string `json:"version"`
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Title string `json:"title,omitempty"`
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AuthorName string `json:"author_name,omitempty"`
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AuthorURL string `json:"author_url,omitempty"`
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ProviderName string `json:"provider_name,omitempty"`
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ProviderURL string `json:"provider_url,omitempty"`
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CacheAge string `json:"cache_age,omitempty"`
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ThumbnailURL string `json:"thumbnail_url,omitempty"`
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ThumbnailWidth int `json:"thumbnail_width,omitempty"`
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ThumbnailHeight int `json:"thumbnail_height,omitempty"`
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// Fields that are required for responses with the type "photo"
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URL string `json:"url"`
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// Fields that are required for responses of the type "video" or "rich"
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HTML string `json:"html"`
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// Fields that are required for responses with the type "photo", "video", or "rich"
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Width int `json:"width"`
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Height int `json:"height"`
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}
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func ResponseFromJSON(r io.Reader) (*OEmbedResponse, error) {
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var response OEmbedResponse
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err := json.NewDecoder(r).Decode(&response)
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if err != nil {
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return nil, err
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}
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// Do a quick smoke test to confirm that this is hopefully a valid oEmbed response
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if response.Version != "1.0" {
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return nil, fmt.Errorf("ResponseFromJson: Received unsupported response version %s", response.Version)
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}
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if response.Type != "photo" && response.Type != "video" && response.Type != "link" && response.Type != "rich" {
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return nil, fmt.Errorf("ResponseFromJson: Received unsupported response type %s", response.Type)
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}
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return &response, nil
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}
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