live-debugger/devtools/common/url.js at 5c2788b618d90156fc8a73cbfda3f6111efeded1 · software-mansion/live-debugger · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
function getLiveDebuggerSessionURL(browserElement) {
  return new Promise((resolve, reject) => {
    const script = `
      (function() {
        function getMetaTag() {
          const metaTag = document.querySelector('meta[name="live-debugger-config"]');
          if (metaTag) {
            return metaTag;
          } else {
            handleMetaTagError();
          }
        }

        function handleMetaTagError() {
          throw new Error("LiveDebugger meta tag not found!");
        }

        function getLiveDebuggerBaseURL(metaTag) {
          return metaTag.getAttribute('url');
        }

        function getVersion(metaTag) {
          const version = metaTag.getAttribute('version');
          return version ? version : "0.2"
        }

        function getSessionId() {
          let el;
          if ((el = document.querySelector('[data-phx-main]'))) {
            return el.id;
          }
          if ((el = document.querySelector('[id^="phx-"]'))) {
            return el.id;
          }
          if ((el = document.querySelector('[data-phx-root-id]'))) {
            return el.getAttribute('data-phx-root-id');
          }
          return null;
        }

        function getSessionURL(baseURL, version, sessionId) {
          let prefix = '';
          if (version.startsWith("0.2")) {
            prefix = "transport_pid";
          } else {
            prefix = "redirect";
          }

          const session_path = sessionId ? \`\${prefix}/\${sessionId}\` : '';
          return \`\${baseURL}/\${session_path}\`;
        }

        const metaTag = getMetaTag();

        const version = getVersion(metaTag);
        const baseURL = getLiveDebuggerBaseURL(metaTag);
        const sessionId = getSessionId();
        const url = getSessionURL(baseURL, version, sessionId);

        return url;
      })();
    `;

    browserElement.devtools.inspectedWindow.eval(
      script,
      (result, isException) => {
        if (isException || !result) {
          reject(new Error("Error fetching LiveDebugger session URL"));
        } else {
          resolve(result);
        }
      }
    );
  });
}

function allowRedirects() {
  return new Promise((resolve, reject) => {
    const script = `
      (function() {
        const metaTag = document.querySelector('meta[name="live-debugger-config"]');
        if (metaTag) {
          return metaTag.getAttribute('devtools-allow-redirects') === 'true';
        }
        return false;
      })();
    `;

    browserElement.devtools.inspectedWindow.eval(
      script,
      (result, isException) => {
        if (isException) {
          reject(new Error("Error checking allow redirects"));
        } else {
          resolve(result);
        }
      }
    );
  });
}