Function web_req_sync_download

wasm/web_request.js:115–145

(url, outputPath, ctxId)

}

var web_req_sync_download = function (url, outputPath, ctxId) {
    create_web_ctx_if_needed(ctxId);
    var urlCpy = url;
    url = web_req_build_url(url, ctxId);

    var req = new XMLHttpRequest();
    req.open(web_req_ctxs[ctxId].method, url, false);
    // Preserve raw byte values in responseText for binary reconstruction via FS.writeFile;
    // this older pattern is kept here for maximum sync-XHR compatibility across browsers.
    req.overrideMimeType("text/plain; charset=x-user-defined");
    for (var i = 0; i < web_req_ctxs[ctxId].headers.length; i++) {
        req.setRequestHeader(web_req_ctxs[ctxId].headers[i].key, web_req_ctxs[ctxId].headers[i].value);
    }

    req.send(web_req_get_payload(ctxId));

    if (req.status >= 200 && req.status < 300) {
        FS.writeFile(outputPath, str_to_bytearray(req.responseText || ""));
        if (web_req_ctxs[ctxId].use_download_callback) {
            Module.ccall('emsCallDownloadCallback', 'number', ['number', 'number'], [1, ctxId]);
        }
    }

    var res = {
        url: urlCpy,
        code: req.status,
        text: "",
        error: (req.status < 200 || req.status > 399) ? req.statusText : null
    };
    Module.ccall('emsCallResponseCallback', 'number', ['string', 'bool', 'number'], [JSON.stringify(res), false, ctxId]);
}

var web_req_async_download = function (url, outputPath, ctxId) {
    create_web_ctx_if_needed(ctxId);