hivessh
Version:
HiveSsh is an innovative library designed to streamline SSH2 connections and simplify task execution on Linux servers.
237 lines • 35.3 kB
JavaScript
export const defaultCmdChannelSettings = {
pwd: "/",
env: undefined,
timeoutMillis: -1,
sudo: false,
};
export class SshChannelExitError extends Error {
exit;
constructor(message, exit) {
super(message);
this.exit = exit;
}
}
export function toSshChannel(channel, extras) {
const sshChannel = channel;
for (const key of Object.typedKeys(extras)) {
sshChannel[key] = extras[key];
}
return sshChannel;
}
export async function execSshChannel(sshClient, cmd, options) {
const settings = {
...defaultCmdChannelSettings,
...options,
};
settings.env = {
...settings.env,
PWD: settings.pwd,
};
if (settings.sudo) {
cmd = "sudo " + cmd;
}
const baseChannel = await new Promise((res, rej) => sshClient.exec(cmd, settings, (err, channel) => err ?
rej(err) :
res(channel)));
const channel = toSshChannel(baseChannel, {
cmd,
settings,
stdout: baseChannel.stdout,
toPromise: sshChannelToPromise(baseChannel, cmd)
});
if (typeof settings.timeoutMillis == "number" &&
settings.timeoutMillis > 0) {
channel.timeout = setTimeout(() => {
if (!channel.closed) {
channel.close("Timeout", settings.timeoutMillis);
}
}, settings.timeoutMillis);
channel.once("close", () => clearTimeout(channel.timeout));
}
return channel;
}
export const defaultChannelToPromiseSettings = {
mapOut: undefined,
mapStdOut: undefined,
mapErrOut: undefined,
filterOut: undefined,
filterStdOut: undefined,
filterErrOut: undefined,
filterOutOptions: undefined,
filterStdOutOptions: undefined,
filterErrOutOptions: undefined,
throwOnOut: undefined,
throwOnStdOut: false,
throwOnErrOut: true,
expectedExitCode: [0],
};
export function checkDataChunk(chunk) {
if (chunk instanceof Buffer) {
return chunk.toString("utf8");
}
else if (typeof chunk != "string") {
throw new Error("Unexpected chunk type: '" + typeof chunk + "'\n" +
"Value: '" + chunk + "'");
}
return chunk;
}
export function sshChannelToPromise(channel, cmd) {
return (options) => {
let resolved = false;
let resolveValue;
let rejected = false;
let rejectReason;
let res = (value) => {
if (rejected || resolved) {
return;
}
resolved = true;
resolveValue = value;
};
let rej = (reason) => {
if (rejected || resolved) {
return;
}
rejected = true;
rejectReason = reason;
};
const settings = {
...defaultChannelToPromiseSettings,
...options,
expectedExitCode: undefined,
};
if (typeof settings.expectedExitCode == "number") {
settings.expectedExitCode = [settings.expectedExitCode];
}
const chunks = [];
let anyErr = false;
let anyStd = false;
let stdout = channel.stdout;
let stderr = channel.stderr;
if (typeof settings == "object") {
if (settings.filterOut) {
settings.filterStdOut = settings.filterOut;
settings.filterErrOut = settings.filterOut;
}
if (settings.filterOutOptions) {
settings.filterStdOutOptions = settings.filterOutOptions;
settings.filterErrOutOptions = settings.filterOutOptions;
}
if (settings.throwOnOut) {
settings.throwOnStdOut = settings.throwOnOut;
settings.throwOnErrOut = settings.throwOnOut;
}
if (settings.mapOut) {
settings.mapStdOut = settings.mapOut;
settings.mapErrOut = settings.mapOut;
}
if (settings.filterStdOut) {
const filterStdOut = settings.filterStdOut;
stdout.filter((data, options) => filterStdOut(data, false, options), settings.filterStdOutOptions);
}
if (settings.filterErrOut) {
const filterErrOut = settings.filterErrOut;
stderr.filter((data, options) => filterErrOut(data, true, options), settings.filterErrOutOptions);
}
if (settings.mapStdOut) {
const mapStdOut = settings.mapStdOut;
stdout.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunk = mapStdOut(chunk, false);
if (typeof chunk == "string") {
chunks.push([false, "" + chunk]);
}
});
}
else {
stdout.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunks.push([false, "" + chunk]);
});
}
if (settings.mapErrOut) {
const mapErrOut = settings.mapErrOut;
stderr.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunk = mapErrOut(chunk, true);
if (typeof chunk == "string") {
chunks.push([true, "" + chunk]);
}
});
}
else {
stderr.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunks.push([true, "" + chunk]);
});
}
}
else {
stdout.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunks.push([false, "" + chunk]);
});
stderr.on("data", (chunk) => {
chunk = checkDataChunk(chunk);
chunks.push([true, "" + chunk]);
});
}
stdout.on("data", () => {
anyStd = true;
});
stderr.on("data", () => {
anyErr = true;
});
channel.once("error", (err) => {
rej(err);
if (!channel.closed) {
channel.close();
}
});
channel.once("close", (...params) => channel.emit("exit", ...params));
channel.once("exit", (code, signal, dump, desc) => {
if (!channel.closed) {
channel.close();
}
const exit = {
cmd,
code: code === null ? -1 : code,
signal,
dump,
desc,
chunks,
anyErr,
anyStd,
out: chunks.map((v) => v[1]).join("\n")
};
if (options) {
if (options.throwOnErrOut &&
anyErr) {
rej(new SshChannelExitError("Unexpected error stream output:\n " +
chunks.filter((chunks) => chunks[0]).join("\n "), exit));
return;
}
if (options.throwOnStdOut &&
anyStd) {
rej(new SshChannelExitError("Unexpected standard stream output:\n " +
chunks.filter((chunks) => !chunks[0]).join("\n "), exit));
return;
}
}
res(exit);
});
return new Promise((res2, rej2) => {
if (resolved) {
res2(resolveValue);
return;
}
else if (rejected) {
rej2(rejectReason);
return;
}
res = res2;
rej = rej2;
});
};
}
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{ ClientChannel, ExecOptions, Client as SshClient } from \"ssh2\";\nimport { Readable } from \"stream\";\nimport { Awaitable } from \"./utils/base.js\";\n\nexport interface ArrayOptions {\n    concurrency?: number;\n    signal?: AbortSignal;\n    encoding?: BufferEncoding\n}\n\nexport interface CmdChannelOptions extends ExecOptions {\n    pwd?: string,\n    env?: NodeJS.ProcessEnv,\n    timeoutMillis?: number,\n    sudo?: boolean,\n}\n\nexport interface CmdChannelSettings extends ExecOptions {\n    pwd: string,\n    env: NodeJS.ProcessEnv | undefined,\n    timeoutMillis: number,\n    sudo: boolean,\n}\n\nexport const defaultCmdChannelSettings: CmdChannelSettings = {\n    pwd: \"/\",\n    env: undefined,\n    timeoutMillis: -1,\n    sudo: false,\n}\n\nexport type CmdExecOptions = CmdChannelOptions & ChannelToPromiseOptions\n\nexport interface SshChannelExit {\n    cmd: string,\n    out: string,\n    chunks: [boolean, string][],\n    anyErr: boolean,\n    anyStd: boolean,\n    code: number,\n    signal?: string,\n    dump?: string,\n    desc?: string\n}\n\nexport class SshChannelExitError extends Error {\n    constructor(\n        message: string,\n        public exit: SshChannelExit,\n    ) {\n        super(message)\n    }\n}\n\nexport type SshChannelToPromise = (options?: ChannelToPromiseOptions) => Promise<SshChannelExit>\n\nexport interface SshChannelExtras {\n    cmd: string,\n    timeout?: NodeJS.Timeout | undefined,\n    settings: CmdChannelSettings,\n    stdout: Readable,\n    toPromise: SshChannelToPromise\n}\n\nexport type SshChannel = Omit<ClientChannel, \"stdout\"> & SshChannelExtras\n\nexport function toSshChannel(\n    channel: ClientChannel,\n    extras: SshChannelExtras,\n): SshChannel {\n    const sshChannel = channel as any\n\n    for (const key of Object.typedKeys(extras)) {\n        sshChannel[key] = extras[key]\n    }\n\n    return sshChannel\n}\n\nexport async function execSshChannel(\n    sshClient: SshClient,\n    cmd: string,\n    options?: CmdChannelOptions\n): Promise<SshChannel> {\n    const settings: CmdChannelSettings = {\n        ...defaultCmdChannelSettings,\n        ...options,\n    }\n\n    settings.env = {\n        ...settings.env,\n        PWD: settings.pwd,\n    }\n\n    if (settings.sudo) {\n        cmd = \"sudo \" + cmd\n    }\n\n    const baseChannel = await new Promise<ClientChannel>(\n        (res, rej) => sshClient.exec(\n            cmd,\n            settings,\n            (err, channel) =>\n                err ?\n                    rej(err) :\n                    res(channel)\n        )\n    )\n\n    const channel = toSshChannel(\n        baseChannel,\n        {\n            cmd,\n            settings,\n            stdout: baseChannel.stdout,\n            toPromise: sshChannelToPromise(\n                baseChannel,\n                cmd,\n            )\n        }\n    )\n\n    if (\n        typeof settings.timeoutMillis == \"number\" &&\n        settings.timeoutMillis > 0\n    ) {\n\n        channel.timeout = setTimeout(\n            () => {\n                if (!channel.closed) {\n                    channel.close(\n                        \"Timeout\",\n                        settings.timeoutMillis\n                    )\n                }\n            },\n            settings.timeoutMillis\n        )\n        channel.once(\n            \"close\",\n            () => clearTimeout(\n                channel.timeout\n            )\n        )\n    }\n\n    return channel\n}\n\nexport type StreamDataMapper = (\n    data: string,\n    err: boolean\n) => Awaitable<string | undefined | void>\n\nexport type StreamDataFilter = (\n    data: string,\n    err: boolean,\n    options?: Pick<ArrayOptions, \"signal\">\n) => Awaitable<boolean>\n\nexport interface ChannelToPromiseOptions {\n    mapOut?: StreamDataMapper,\n    mapStdOut?: StreamDataMapper,\n    mapErrOut?: StreamDataMapper,\n    filterOut?: StreamDataFilter,\n    filterStdOut?: StreamDataFilter,\n    filterErrOut?: StreamDataFilter,\n    filterOutOptions?: ArrayOptions,\n    filterStdOutOptions?: ArrayOptions,\n    filterErrOutOptions?: ArrayOptions,\n    throwOnOut?: boolean,\n    throwOnStdOut?: boolean,\n    throwOnErrOut?: boolean,\n    expectedExitCode?: number | number[],\n}\n\nexport interface ChannelToPromiseSettings {\n    mapOut: StreamDataMapper | undefined,\n    mapStdOut: StreamDataMapper | undefined,\n    mapErrOut: StreamDataMapper | undefined,\n    filterOut: StreamDataFilter | undefined,\n    filterStdOut: StreamDataFilter | undefined,\n    filterErrOut: StreamDataFilter | undefined,\n    filterOutOptions: ArrayOptions | undefined,\n    filterStdOutOptions: ArrayOptions | undefined,\n    filterErrOutOptions: ArrayOptions | undefined,\n    throwOnOut: boolean | undefined,\n    throwOnStdOut: boolean,\n    throwOnErrOut: boolean,\n    expectedExitCode: number[],\n}\n\nexport const defaultChannelToPromiseSettings: ChannelToPromiseSettings = {\n    mapOut: undefined,\n    mapStdOut: undefined,\n    mapErrOut: undefined,\n    filterOut: undefined,\n    filterStdOut: undefined,\n    filterErrOut: undefined,\n    filterOutOptions: undefined,\n    filterStdOutOptions: undefined,\n    filterErrOutOptions: undefined,\n    throwOnOut: undefined,\n    throwOnStdOut: false,\n    throwOnErrOut: true,\n    expectedExitCode: [0],\n}\n\nexport function checkDataChunk(chunk: any): string {\n    if (chunk instanceof Buffer) {\n        return chunk.toString(\"utf8\")\n    } else if (typeof chunk != \"string\") {\n        throw new Error(\n            \"Unexpected chunk type: '\" + typeof chunk + \"'\\n\" +\n            \"Value: '\" + chunk + \"'\"\n        )\n    }\n    return chunk\n}\n\nexport function sshChannelToPromise(\n    channel: ClientChannel,\n    cmd: string,\n): SshChannelToPromise {\n    return (\n        options?: ChannelToPromiseOptions\n    ) => {\n        let resolved: boolean = false\n        let resolveValue: SshChannelExit | PromiseLike<SshChannelExit>\n\n        let rejected: boolean = false\n        let rejectReason: any\n\n        let res: (value: SshChannelExit | PromiseLike<SshChannelExit>) => void = (value) => {\n            if (rejected || resolved) {\n                return\n            }\n            resolved = true\n            resolveValue = value\n        }\n        let rej: (reason?: any) => void = (reason) => {\n            if (rejected || resolved) {\n                return\n            }\n            rejected = true\n            rejectReason = reason\n        }\n\n        const settings: ChannelToPromiseSettings = {\n            ...defaultChannelToPromiseSettings,\n            ...options,\n            expectedExitCode: undefined as any,\n        }\n\n        if (typeof settings.expectedExitCode == \"number\") {\n            settings.expectedExitCode = [settings.expectedExitCode]\n        }\n\n        const chunks: [boolean, string][] = []\n        let anyErr: boolean = false\n        let anyStd: boolean = false\n        let stdout: Readable = channel.stdout\n        let stderr: Readable = channel.stderr\n\n        if (typeof settings == \"object\") {\n            if (settings.filterOut) {\n                settings.filterStdOut = settings.filterOut\n                settings.filterErrOut = settings.filterOut\n            }\n            if (settings.filterOutOptions) {\n                settings.filterStdOutOptions = settings.filterOutOptions\n                settings.filterErrOutOptions = settings.filterOutOptions\n            }\n            if (settings.throwOnOut) {\n                settings.throwOnStdOut = settings.throwOnOut\n                settings.throwOnErrOut = settings.throwOnOut\n            }\n\n            if (settings.mapOut) {\n                settings.mapStdOut = settings.mapOut\n                settings.mapErrOut = settings.mapOut\n            }\n\n            if (settings.filterStdOut) {\n                const filterStdOut = settings.filterStdOut\n                stdout.filter(\n                    (data, options) => filterStdOut(\n                        data,\n                        false,\n                        options\n                    ),\n                    settings.filterStdOutOptions\n                )\n            }\n            if (settings.filterErrOut) {\n                const filterErrOut = settings.filterErrOut\n                stderr.filter(\n                    (data, options) => filterErrOut(\n                        data,\n                        true,\n                        options\n                    ),\n                    settings.filterErrOutOptions\n                )\n            }\n\n            if (settings.mapStdOut) {\n                const mapStdOut = settings.mapStdOut\n                stdout.on(\"data\", (chunk) => {\n                    chunk = checkDataChunk(chunk)\n                    chunk = mapStdOut(chunk, false)\n                    if (typeof chunk == \"string\") {\n                        chunks.push([false, \"\" + chunk])\n                    }\n                })\n            } else {\n                stdout.on(\"data\", (chunk) => {\n                    chunk = checkDataChunk(chunk)\n                    chunks.push([false, \"\" + chunk])\n                })\n            }\n\n            if (settings.mapErrOut) {\n                const mapErrOut = settings.mapErrOut\n                stderr.on(\"data\", (chunk) => {\n                    chunk = checkDataChunk(chunk)\n                    chunk = mapErrOut(chunk, true)\n                    if (typeof chunk == \"string\") {\n                        chunks.push([true, \"\" + chunk])\n                    }\n                })\n            } else {\n                stderr.on(\"data\", (chunk) => {\n                    chunk = checkDataChunk(chunk)\n                    chunks.push([true, \"\" + chunk])\n                })\n            }\n        } else {\n            stdout.on(\"data\", (chunk) => {\n                chunk = checkDataChunk(chunk)\n                chunks.push([false, \"\" + chunk])\n            })\n\n            stderr.on(\"data\", (chunk) => {\n                chunk = checkDataChunk(chunk)\n                chunks.push([true, \"\" + chunk])\n            })\n        }\n\n        stdout.on(\"data\", () => {\n            anyStd = true\n        })\n\n        stderr.on(\"data\", () => {\n            anyErr = true\n        })\n\n        channel.once(\n            \"error\",\n            (err: Error) => {\n                rej(err)\n                if (!channel.closed) {\n                    channel.close()\n                }\n            }\n        )\n\n        channel.once(\n            \"close\",\n            (...params: any[]) => channel.emit(\"exit\", ...params)\n        )\n\n        channel.once(\"exit\", (\n            code: number | null,\n            signal?: string,\n            dump?: string,\n            desc?: string,\n        ) => {\n            if (!channel.closed) {\n                channel.close()\n            }\n\n            const exit: SshChannelExit = {\n                cmd,\n                code: code === null ? -1 : code,\n                signal,\n                dump,\n                desc,\n                chunks,\n                anyErr,\n                anyStd,\n                out: chunks.map((v) => v[1]).join(\"\\n\")\n            }\n\n            if (options) {\n                if (\n                    options.throwOnErrOut &&\n                    anyErr\n                ) {\n                    rej(new SshChannelExitError(\n                        \"Unexpected error stream output:\\n  \" +\n                        chunks.filter(\n                            (chunks) => chunks[0]\n                        ).join(\"\\n  \"),\n                        exit\n                    ))\n                    return\n                }\n                if (\n                    options.throwOnStdOut &&\n                    anyStd\n                ) {\n                    rej(new SshChannelExitError(\n                        \"Unexpected standard stream output:\\n  \" +\n                        chunks.filter(\n                            (chunks) => !chunks[0]\n                        ).join(\"\\n  \"),\n                        exit\n                    ))\n                    return\n\n                }\n            }\n\n            res(exit)\n        })\n\n\n        return new Promise<SshChannelExit>(\n            (res2, rej2) => {\n                if (resolved) {\n                    res2(resolveValue)\n                    return\n                } else if (rejected) {\n                    rej2(rejectReason)\n                    return\n                }\n\n                res = res2\n                rej = rej2\n            }\n        )\n    }\n}"]}