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fix: Cannot get twitter open graph tags #18

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fix: Cannot get twitter open graph tags #18

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b79f5e9
add facebookexternalhit, Bypassing the User-Agent whitelist to receiv…
May 13, 2021
ec0b771
update example
May 13, 2021
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add facebookexternalhit, Bypassing the User-Agent whitelist to receiv… 
…e server-side-rendered (SSR) HTML
WingCH committed May 13, 2021
commit b79f5e93807f02b1d61cd3fa2bcb8ff2d40660b8
9 changes: 7 additions & 2 deletions lib/web_analyzer.dart
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Original file line number Diff line number Diff line change
@@ -181,14 +181,19 @@ class WebAnalyzer {
final uri = Uri.parse(url);
final ioClient = HttpClient()..badCertificateCallback = _certificateCheck;
final client = IOClient(ioClient);
/*
Twitter website doesn't have open graph tags?
https://stackoverflow.com/a/64332370/5588637
*/
final request = Request('GET', uri)
..followRedirects = false
..headers["User-Agent"] = useDesktopAgent
? "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36"
: "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1"
? "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36"
: "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1"
..headers["cache-control"] = "no-cache"
..headers["Cookie"] = cookie ?? _cookies[uri.host]
..headers["accept"] = "*/*";

// print(request.headers);
final stream = await client.send(request);