n8n/packages/nodes-base/nodes/Slack/V2/GenericFunctions.ts

197 lines
5.4 KiB
TypeScript

import type { OptionsWithUri } from 'request';
import type {
IDataObject,
IExecuteFunctions,
ILoadOptionsFunctions,
IOAuth2Options,
} from 'n8n-workflow';
import { NodeOperationError, jsonParse } from 'n8n-workflow';
import get from 'lodash/get';
export async function slackApiRequest(
this: IExecuteFunctions | ILoadOptionsFunctions,
method: string,
resource: string,
body: object = {},
query: object = {},
headers: {} | undefined = undefined,
option: {} = {},
// tslint:disable-next-line:no-any
): Promise<any> {
const authenticationMethod = this.getNodeParameter('authentication', 0, 'accessToken') as string;
let options: OptionsWithUri = {
method,
headers: headers ?? {
'Content-Type': 'application/json; charset=utf-8',
},
body,
qs: query,
uri: `https://slack.com/api${resource}`,
json: true,
};
options = Object.assign({}, options, option);
if (Object.keys(body).length === 0) {
delete options.body;
}
if (Object.keys(query).length === 0) {
delete options.qs;
}
const oAuth2Options: IOAuth2Options = {
tokenType: 'Bearer',
property: 'authed_user.access_token',
};
const credentialType = authenticationMethod === 'accessToken' ? 'slackApi' : 'slackOAuth2Api';
const response = await this.helpers.requestWithAuthentication.call(
this,
credentialType,
options,
{
oauth2: oAuth2Options,
},
);
if (response.ok === false) {
if (response.error === 'paid_teams_only') {
throw new NodeOperationError(
this.getNode(),
`Your current Slack plan does not include the resource '${
this.getNodeParameter('resource', 0) as string
}'`,
{
description:
'Hint: Upgrade to a Slack plan that includes the functionality you want to use.',
},
);
} else if (response.error === 'missing_scope') {
throw new NodeOperationError(
this.getNode(),
'Your Slack credential is missing required Oauth Scopes',
{
description: `Add the following scope(s) to your Slack App: ${response.needed}`,
},
);
}
throw new NodeOperationError(
this.getNode(),
'Slack error response: ' + JSON.stringify(response.error),
);
}
if (response.ts !== undefined) {
Object.assign(response, { message_timestamp: response.ts });
delete response.ts;
}
return response;
}
export async function slackApiRequestAllItems(
this: IExecuteFunctions | ILoadOptionsFunctions,
propertyName: string,
method: string,
endpoint: string,
// tslint:disable-next-line:no-any
body: any = {},
query: IDataObject = {},
// tslint:disable-next-line:no-any
): Promise<any> {
const returnData: IDataObject[] = [];
let responseData;
query.page = 1;
//if the endpoint uses legacy pagination use count
//https://api.slack.com/docs/pagination#classic
if (endpoint.includes('files.list')) {
query.count = 100;
} else {
query.limit = 100;
}
do {
responseData = await slackApiRequest.call(this, method, endpoint, body as IDataObject, query);
query.cursor = get(responseData, 'response_metadata.next_cursor');
query.page++;
returnData.push.apply(
returnData,
(responseData[propertyName].matches as IDataObject[]) ?? responseData[propertyName],
);
} while (
(responseData.response_metadata?.next_cursor !== undefined &&
responseData.response_metadata.next_cursor !== '' &&
responseData.response_metadata.next_cursor !== null) ||
(responseData.paging?.pages !== undefined &&
responseData.paging.page !== undefined &&
responseData.paging.page < responseData.paging.pages) ||
(responseData[propertyName].paging?.pages !== undefined &&
responseData[propertyName].paging.page !== undefined &&
responseData[propertyName].paging.page < responseData[propertyName].paging.pages)
);
return returnData;
}
export function getMessageContent(this: IExecuteFunctions | ILoadOptionsFunctions, i: number) {
const nodeVersion = this.getNode().typeVersion;
const includeLinkToWorkflow = this.getNodeParameter(
'otherOptions.includeLinkToWorkflow',
i,
nodeVersion >= 2.1 ? true : false,
) as IDataObject;
const { id } = this.getWorkflow();
const automatedMessage = `_Automated with this <${this.getInstanceBaseUrl()}workflow/${id}?utm_source=n8n&utm_medium=slackNode|n8n workflow>_`;
const messageType = this.getNodeParameter('messageType', i) as string;
let content: IDataObject = {};
const text = this.getNodeParameter('text', i, '') as string;
switch (messageType) {
case 'text':
content = {
text: includeLinkToWorkflow ? `${text}\n${automatedMessage}` : text,
};
break;
case 'block':
content = jsonParse(this.getNodeParameter('blocksUi', i) as string);
if (includeLinkToWorkflow && Array.isArray(content.blocks)) {
content.blocks.push({
type: 'section',
text: {
type: 'mrkdwn',
text: automatedMessage,
},
});
}
if (text) {
content.text = text;
}
break;
case 'attachment':
content = { attachments: this.getNodeParameter('attachments', i) } as IDataObject;
if (includeLinkToWorkflow && Array.isArray(content.attachments)) {
content.attachments.push({
text: automatedMessage,
});
}
break;
default:
throw new NodeOperationError(
this.getNode(),
`The message type "${messageType}" is not known!`,
);
}
return content;
}
// tslint:disable-next-line:no-any
export function validateJSON(json: string | undefined): any {
let result;
try {
result = JSON.parse(json!);
} catch (exception) {
result = undefined;
}
return result;
}