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dlbot4/instagram/instagram.go

75 lines
1.9 KiB
Go

package instagram
import (
"encoding/json"
"errors"
"io"
"net/url"
"path"
)
type queryResponse struct {
Data struct {
ShortcodeMedia *struct {
Type string `json:"__typename"`
VideoUrl string `json:"video_url"`
Owner struct {
Username string `json:"username"`
} `json:"owner"`
EdgeMediaToCaption struct {
Edges []struct {
Node struct {
Text string `json:"text"`
} `json:"node"`
} `json:"edges"`
} `json:"edge_media_to_caption"`
} `json:"shortcode_media"`
} `json:"data"`
}
type lookupResponse struct {
VideoUrl string
Author string
Text string
}
func (r *Instagram) lookup(urlSrc string) (lookupResponse, error) {
urlSrcParsed, err := url.Parse(urlSrc)
if err != nil {
return lookupResponse{}, err
}
url, _ := url.Parse("https://www.instagram.com/graphql/query/?query_hash=b3055c01b4b222b8a47dc12b090e4e64")
query := url.Query()
query.Add("variables", "{\"shortcode\":\""+path.Base(urlSrcParsed.Path)+"\",\"child_comment_count\":3,\"fetch_comment_count\":40,\"parent_comment_count\":24,\"has_threaded_comments\":true}")
url.RawQuery = query.Encode()
resp, err := r.Client.Get(url.String())
if err != nil {
return lookupResponse{}, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
var response queryResponse
err = json.Unmarshal(body, &response)
if err != nil {
return lookupResponse{}, err
}
if response.Data.ShortcodeMedia == nil {
return lookupResponse{}, errors.New("No encontré el video.")
}
if response.Data.ShortcodeMedia.Type != "GraphVideo" {
return lookupResponse{}, errors.New("Esto no es un video.")
}
var text string
if len(response.Data.ShortcodeMedia.EdgeMediaToCaption.Edges) > 0 {
text = response.Data.ShortcodeMedia.EdgeMediaToCaption.Edges[0].Node.Text
}
return lookupResponse{
VideoUrl: response.Data.ShortcodeMedia.VideoUrl,
Author: response.Data.ShortcodeMedia.Owner.Username,
Text: text,
}, nil
}