pdf-printer
Version:
weasyprint-based HTTP service and client libraries
91 lines (81 loc) • 2.71 kB
JavaScript
/**
* (c) 2017 cepharum GmbH, Berlin, http://cepharum.de
*
* The MIT License (MIT)
*
* Copyright (c) 2017 cepharum GmbH
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* @author: cepharum
*/
;
const CreateFile = require( "../../util/create-file" );
module.exports = function( app ) {
/**
* "POST /css" collects CSS file provided in request body for use with
* upcoming conversion.
*
* Supported arguments are:
* `css[]=<cssURL>` selects (another) CSS file by URL to include
*
* Streams back converted PDF document or some JSON object on error.
*/
app.post( "/css", function( req, res, next ) {
const sessionFolder = req.ourSessionFolder;
if ( !sessionFolder ) {
return next( Object.assign( new Error( "missing session required for providing assets" ), { httpCode: 400 } ) );
}
CreateFile( sessionFolder, ".css" )
.then( fileStream => {
fileStream.on( "finish", _success );
req.on( "error", _error );
fileStream.on( "error", _error );
req.pipe( fileStream );
req.resume();
} )
.catch( next );
/**
* Responds on success when writing file has finished w/o error.
*
* @private
*/
function _success() {
res
.status( 200 )
.json( {
success: true,
} );
}
/**
* Responds on error when reading request body or writing file as
* emitted any error.
*
* @param {Error} error
* @private
*/
function _error( error ) {
res
.status( error.httpCode || 500 )
.json( {
error: String( error.message || "unknown error" ),
} );
}
} );
};