File size: 2,904 Bytes
fc93158 | 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 | export function formatAllowFromLowercase(params: {
allowFrom: Array<string | number>;
stripPrefixRe?: RegExp;
}): string[] {
return params.allowFrom
.map((entry) => String(entry).trim())
.filter(Boolean)
.map((entry) => (params.stripPrefixRe ? entry.replace(params.stripPrefixRe, "") : entry))
.map((entry) => entry.toLowerCase());
}
export function formatNormalizedAllowFromEntries(params: {
allowFrom: Array<string | number>;
normalizeEntry: (entry: string) => string | undefined | null;
}): string[] {
return params.allowFrom
.map((entry) => String(entry).trim())
.filter(Boolean)
.map((entry) => params.normalizeEntry(entry))
.filter((entry): entry is string => Boolean(entry));
}
export function isNormalizedSenderAllowed(params: {
senderId: string | number;
allowFrom: Array<string | number>;
stripPrefixRe?: RegExp;
}): boolean {
const normalizedAllow = formatAllowFromLowercase({
allowFrom: params.allowFrom,
stripPrefixRe: params.stripPrefixRe,
});
if (normalizedAllow.length === 0) {
return false;
}
if (normalizedAllow.includes("*")) {
return true;
}
const sender = String(params.senderId).trim().toLowerCase();
return normalizedAllow.includes(sender);
}
type ParsedChatAllowTarget =
| { kind: "chat_id"; chatId: number }
| { kind: "chat_guid"; chatGuid: string }
| { kind: "chat_identifier"; chatIdentifier: string }
| { kind: "handle"; handle: string };
export function isAllowedParsedChatSender<TParsed extends ParsedChatAllowTarget>(params: {
allowFrom: Array<string | number>;
sender: string;
chatId?: number | null;
chatGuid?: string | null;
chatIdentifier?: string | null;
normalizeSender: (sender: string) => string;
parseAllowTarget: (entry: string) => TParsed;
}): boolean {
const allowFrom = params.allowFrom.map((entry) => String(entry).trim());
if (allowFrom.length === 0) {
return false;
}
if (allowFrom.includes("*")) {
return true;
}
const senderNormalized = params.normalizeSender(params.sender);
const chatId = params.chatId ?? undefined;
const chatGuid = params.chatGuid?.trim();
const chatIdentifier = params.chatIdentifier?.trim();
for (const entry of allowFrom) {
if (!entry) {
continue;
}
const parsed = params.parseAllowTarget(entry);
if (parsed.kind === "chat_id" && chatId !== undefined) {
if (parsed.chatId === chatId) {
return true;
}
} else if (parsed.kind === "chat_guid" && chatGuid) {
if (parsed.chatGuid === chatGuid) {
return true;
}
} else if (parsed.kind === "chat_identifier" && chatIdentifier) {
if (parsed.chatIdentifier === chatIdentifier) {
return true;
}
} else if (parsed.kind === "handle" && senderNormalized) {
if (parsed.handle === senderNormalized) {
return true;
}
}
}
return false;
}
|