File size: 2,028 Bytes
2b06d1d | 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 | import type { FileData } from "./types";
export function normalise_file(
file: string | FileData | null,
root: string,
root_url: string | null
): FileData | null;
export function normalise_file(
file: FileData[] | null,
root: string,
root_url: string | null
): FileData[] | null;
export function normalise_file(
file: FileData[] | FileData | null,
root: string,
root_url: string | null
): FileData[] | FileData | null;
export function normalise_file(
file: FileData[] | FileData | string | null,
root: string,
root_url: string | null
): FileData[] | FileData | null {
if (file == null) return null;
if (typeof file === "string") {
return {
name: "file_data",
data: file
};
} else if (Array.isArray(file)) {
const normalized_file: (FileData | null)[] = [];
for (const x of file) {
if (x === null) {
normalized_file.push(null);
} else {
normalized_file.push(normalise_file(x, root, root_url));
}
}
return normalized_file as FileData[];
} else if (file.is_file) {
file.data = get_fetchable_url_or_file(file.name, root, root_url);
} else if (file.is_stream) {
if (root_url == null) {
file.data = root + "/stream/" + file.name;
} else {
file.data = "/proxy=" + root_url + "stream/" + file.name;
}
}
return file;
}
function is_url(str: string): boolean {
try {
const url = new URL(str);
return url.protocol === "http:" || url.protocol === "https:";
} catch {
return false;
}
}
export function get_fetchable_url_or_file(
path: string | null,
root: string,
root_url: string | null
): string {
if (path == null) {
return root_url ? `/proxy=${root_url}file=` : `${root}/file=`;
}
if (is_url(path)) {
return path;
}
return root_url ? `/proxy=${root_url}file=${path}` : `${root}/file=${path}`;
}
export const blobToBase64 = (blob: File): Promise<string> => {
const reader = new FileReader();
reader.readAsDataURL(blob);
return new Promise((resolve) => {
reader.onloadend = (): void => {
resolve(reader.result as string);
};
});
};
|