# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">Понятие CORS или "Cross-Origin Resource Sharing"</a> относится к ситуациям, при которых запущенный в браузере фронтенд содержит JavaScript-код, который взаимодействует с бэкендом, находящимся на другом "источнике" ("origin").

## Источник { #origin }

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS o "Cross-Origin Resource Sharing"</a> se refiere a situaciones en las que un frontend que se ejecuta en un navegador tiene código JavaScript que se comunica con un backend, y el backend está en un "origen" diferente al frontend.

## Origen { #origin }

            if (ci > 0) {
                domain = username.substring(ci + 1);
                username = username.substring(0, ci);
            } else {
                ci = username.indexOf('\\');
                if (ci > 0) {
                    domain = username.substring(0, ci);
                    username = username.substring(ci + 1);
                }
            }
        }

            final String value = decodeUrlAsName(url.substring(9), true);
            return abbreviateSite("\\\\" + value.replace('/', '\\'));
        }
        if (url.startsWith("file:")) {
            final String value = decodeUrlAsName(url.substring(5), true);
            if (value.length() > 2 && value.charAt(2) == ':') {
                // Windows
                return abbreviateSite(value.substring(1).replace('/', '\\'));
            }

        String result;
        int idx = filename.indexOf('.');
        if (idx < 0) {
            result = filename + '-' + repositoryKey;
        } else {
            result = filename.substring(0, idx) + '-' + repositoryKey + filename.substring(idx);
        }
        return result;
    }

    @Override
    public LocalArtifactResult find(RepositorySystemSession session, LocalArtifactRequest request) {

        String result;
        int idx = filename.indexOf('.');
        if (idx < 0) {
            result = filename + '-' + repositoryKey;
        } else {
            result = filename.substring(0, idx) + '-' + repositoryKey + filename.substring(idx);
        }
        return result;
    }

    @Override
    public LocalArtifactResult find(RepositorySystemSession session, LocalArtifactRequest request) {

            String[] alphabets;
            if (i + 1 < text.length() && CONVERT_MAP.get(text.substring(i, i + 2)) != null) {
                alphabets = CONVERT_MAP.get(text.substring(i, i + 2));
                i += 2;
            } else {
                if (CONVERT_MAP.get(text.substring(i, i + 1)) != null) {
                    alphabets = CONVERT_MAP.get(text.substring(i, i + 1));
                } else {

          pos = value.indexOf('"', pos)
          parameter = value.substring(parameterStart, pos)
          pos++ // Consume '"' close quote (if necessary).
        } else {
          // Unquoted string.
          val parameterStart = pos
          pos = value.indexOfElement(",;", pos)
          parameter = value.substring(parameterStart, pos).trim()
        }
      }

      when {

        if (endOffset - startOffset < n) {
            queue.add(new MyToken(block.substring(startOffset, endOffset), startOffset, endOffset, posInc));
            return;
        }

        for (int i = startOffset; i + n <= endOffset; i++) {
            queue.add(new MyToken(block.substring(i, i + n), i, i + n, posInc));
            posInc = 1;
        }
    }

    }

    SmbFileOutputStream(final SmbFile file, final boolean append, final int openFlags, final int access, final int sharing)
            throws SmbException {
        this.file = file;
        this.append = append;
        this.openFlags = openFlags;
        this.sharing = sharing;
        this.access = access | SmbConstants.FILE_WRITE_DATA;

        try (SmbTreeHandleImpl th = file.ensureTreeConnected()) {