Function getUrlInSession

emain/emain-ipc.ts:81–131

(session: Electron.Session, url: string)

}

function getUrlInSession(session: Electron.Session, url: string): Promise<UrlInSessionResult> {
    return new Promise((resolve, reject) => {
        if (url.startsWith("data:")) {
            try {
                const parsed = parseDataUrl(url);
                const buffer = Buffer.from(parsed.buffer);
                const readable = Readable.from(buffer);
                resolve({ stream: readable, mimeType: parsed.mimeType, fileName: "image" });
            } catch (err) {
                return reject(err);
            }
            return;
        }
        const request = electron.net.request({
            url,
            method: "GET",
            session,
        });
        const readable = new Readable({
            read() {},
        });
        request.on("response", (response) => {
            const statusCode = response.statusCode;
            if (statusCode < 200 || statusCode >= 300) {
                readable.destroy();
                request.abort();
                reject(new Error(`HTTP request failed with status ${statusCode}: ${response.statusMessage || ""}`));
                return;
            }

            const mimeType = cleanMimeType(getSingleHeaderVal(response.headers, "content-type"));
            const fileName = getFileNameFromUrl(url) || "image";
            response.on("data", (chunk) => {
                readable.push(chunk);
            });
            response.on("end", () => {
                readable.push(null);
                resolve({ stream: readable, mimeType, fileName });
            });
            response.on("error", (err) => {
                readable.destroy(err);
                reject(err);
            });
        });
        request.on("error", (err) => {
            readable.destroy(err);
            reject(err);
        });
        request.end();
    });
}

function saveImageFileWithNativeDialog(
    sender: electron.WebContents,