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Merge pull request #507 from codimd/routes/notes/plainBody

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Routes/notes/plain body parsing
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David Mehren 2020-10-02 21:43:07 +02:00 committed by GitHub
commit 9786f07a61
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2 changed files with 42 additions and 46 deletions
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57
src/api/public/notes/notes.controller.ts
View file

@ -1,5 +1,4 @@
import {
BadRequestException,
Body,
Controller,
Delete,
@ -8,14 +7,12 @@ import {
Param,
Post,
Put,
Req,
} from '@nestjs/common';
import { Request } from 'express';
import * as getRawBody from 'raw-body';
import { ConsoleLoggerService } from '../../../logger/console-logger.service';
import { NotePermissionsUpdateDto } from '../../../notes/note-permissions.dto';
import { NotesService } from '../../../notes/notes.service';
import { RevisionsService } from '../../../revisions/revisions.service';
import { MarkdownBody } from '../../utils/markdownbody-decorator';
@Controller('notes')
export class NotesController {
@ -24,27 +21,13 @@ export class NotesController {
private noteService: NotesService,
private revisionsService: RevisionsService,
) {
this.logger.setContext(NotesController.name);
this.logger.setContext(NotesController.name);
}
/**
* Extract the raw markdown from the request body and create a new note with it
*
* Implementation inspired by https://stackoverflow.com/questions/52283713/how-do-i-pass-plain-text-as-my-request-body-using-nestjs
*/
@Post()
async createNote(@Req() req: Request) {
// we have to check req.readable because of raw-body issue #57
// https://github.com/stream-utils/raw-body/issues/57
if (req.readable) {
let bodyText: string = await getRawBody(req, 'utf-8');
bodyText = bodyText.trim();
this.logger.debug('Got raw markdown:\n' + bodyText);
return this.noteService.createNoteDto(bodyText);
} else {
// TODO: Better error message
throw new BadRequestException('Invalid body');
}
async createNote(@MarkdownBody() text: string) {
this.logger.debug('Got raw markdown:\n' + text);
return this.noteService.createNoteDto(text);
}
@Get(':noteIdOrAlias')
@ -55,19 +38,10 @@ export class NotesController {
@Post(':noteAlias')
async createNamedNote(
@Param('noteAlias') noteAlias: string,
@Req() req: Request,
@MarkdownBody() text: string,
) {
// we have to check req.readable because of raw-body issue #57
// https://github.com/stream-utils/raw-body/issues/57
if (req.readable) {
let bodyText: string = await getRawBody(req, 'utf-8');
bodyText = bodyText.trim();
this.logger.debug('Got raw markdown:\n' + bodyText);
return this.noteService.createNoteDto(bodyText, noteAlias);
} else {
// TODO: Better error message
throw new BadRequestException('Invalid body');
}
this.logger.debug('Got raw markdown:\n' + text);
return this.noteService.createNoteDto(text, noteAlias);
}
@Delete(':noteIdOrAlias')
@ -81,19 +55,10 @@ export class NotesController {
@Put(':noteIdOrAlias')
async updateNote(
@Param('noteIdOrAlias') noteIdOrAlias: string,
@Req() req: Request,
@MarkdownBody() text: string,
) {
// we have to check req.readable because of raw-body issue #57
// https://github.com/stream-utils/raw-body/issues/57
if (req.readable) {
let bodyText: string = await getRawBody(req, 'utf-8');
bodyText = bodyText.trim();
this.logger.debug('Got raw markdown:\n' + bodyText);
return this.noteService.updateNoteByIdOrAlias(noteIdOrAlias, bodyText);
} else {
// TODO: Better error message
throw new BadRequestException('Invalid body');
}
this.logger.debug('Got raw markdown:\n' + text);
return this.noteService.updateNoteByIdOrAlias(noteIdOrAlias, text);
}
@Get(':noteIdOrAlias/content')

31
src/api/utils/markdownbody-decorator.ts Normal file
View file

@ -0,0 +1,31 @@
import {
BadRequestException,
createParamDecorator,
ExecutionContext,
InternalServerErrorException,
} from '@nestjs/common';
import * as getRawBody from 'raw-body';
/**
* Extract the raw markdown from the request body and create a new note with it
*
* Implementation inspired by https://stackoverflow.com/questions/52283713/how-do-i-pass-plain-text-as-my-request-body-using-nestjs
*/
export const MarkdownBody = createParamDecorator(async (_, context: ExecutionContext) => {
// we have to check req.readable because of raw-body issue #57
// https://github.com/stream-utils/raw-body/issues/57
const req = context.switchToHttp().getRequest<import('express').Request>();
// Here the Content-Type of the http request is checked to be text/markdown
// because we dealing with markdown. Technically by now there can be any content which can be encoded.
// There could be features in the software which do not work properly if the text can't be parsed as markdown.
if (req.get('Content-Type') === 'text/markdown') {
if (req.readable) {
return (await getRawBody(req)).toString().trim();
} else {
throw new InternalServerErrorException('Failed to parse request body!');
}
} else {
throw new BadRequestException('Body Content-Type has to be text/markdown!');
}
});