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Refactor ssh key generation function to a new ssh utils file

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This commit is contained in:
Antoine Jeanselme 2026-04-18 08:52:07 +02:00
parent 788499bcf2
commit 9625939aa5
2 changed files with 33 additions and 33 deletions
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34
app/client/modules/volumes/components/volume-forms/sftp-form.tsx
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@ -14,44 +14,12 @@ import { SecretInput } from "../../../../components/ui/secret-input";
import { Textarea } from "../../../../components/ui/textarea"; import { Textarea } from "../../../../components/ui/textarea";
import { Switch } from "../../../../components/ui/switch"; import { Switch } from "../../../../components/ui/switch";
import { Button } from "~/client/components/ui/button"; import { Button } from "~/client/components/ui/button";
import { generatePrivateKeyPem } from "~/utils/ssh";
type Props = { type Props = {
form: UseFormReturn<FormValues>; form: UseFormReturn<FormValues>;
}; };
const arrayBufferToBase64 = (buffer: ArrayBuffer) => {
let binary = "";
const bytes = new Uint8Array(buffer);
const chunkSize = 0x8000;
for (let i = 0; i < bytes.length; i += chunkSize) {
binary += String.fromCharCode(...bytes.subarray(i, i + chunkSize));
}
return btoa(binary);
};
const toPem = (base64: string, label: string) => {
const wrapped = base64.match(/.{1,64}/g)?.join("\n") ?? base64;
return `-----BEGIN ${label}-----\n${wrapped}\n-----END ${label}-----`;
};
const generatePrivateKeyPem = async () => {
const keyPair = await crypto.subtle.generateKey(
{
name: "RSASSA-PKCS1-v1_5",
modulusLength: 4096,
publicExponent: new Uint8Array([1, 0, 1]),
hash: "SHA-256",
},
true,
["sign", "verify"],
);
const privateKey = await crypto.subtle.exportKey("pkcs8", keyPair.privateKey);
return toPem(arrayBufferToBase64(privateKey), "OPENSSH PRIVATE KEY");
};
export const SFTPForm = ({ form }: Props) => { export const SFTPForm = ({ form }: Props) => {
const skipHostKeyCheck = useWatch({ control: form.control, name: "skipHostKeyCheck" }); const skipHostKeyCheck = useWatch({ control: form.control, name: "skipHostKeyCheck" });
const [isGeneratingKey, setIsGeneratingKey] = useState(false); const [isGeneratingKey, setIsGeneratingKey] = useState(false);

32
app/utils/ssh.ts Normal file
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@ -0,0 +1,32 @@
const arrayBufferToBase64 = (buffer: ArrayBuffer) => {
let binary = "";
const bytes = new Uint8Array(buffer);
const chunkSize = 0x8000;
for (let i = 0; i < bytes.length; i += chunkSize) {
binary += String.fromCharCode(...bytes.subarray(i, i + chunkSize));
}
return btoa(binary);
};
const toPem = (base64: string, label: string) => {
const wrapped = base64.match(/.{1,64}/g)?.join("\n") ?? base64;
return `-----BEGIN ${label}-----\n${wrapped}\n-----END ${label}-----`;
};
export const generatePrivateKeyPem = async () => {
const keyPair = await crypto.subtle.generateKey(
{
name: "RSASSA-PKCS1-v1_5",
modulusLength: 4096,
publicExponent: new Uint8Array([1, 0, 1]),
hash: "SHA-256",
},
true,
["sign", "verify"],
);
const privateKey = await crypto.subtle.exportKey("pkcs8", keyPair.privateKey);
return toPem(arrayBufferToBase64(privateKey), "OPENSSH PRIVATE KEY");
};