9 lines
7.1 KiB
JavaScript
9 lines
7.1 KiB
JavaScript
/**
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* Fileuploader *** Trial ***
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* Copyright (c) 2018 Innostudio.de
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* Website: http://innostudio.de/fileuploader/
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* Version: 2.2 (01-Apr-2019)
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* Requires: multer, mime-types and gm
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* License: https://innostudio.de/fileuploader/documentation/#license
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*/
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const multer=require('multer'),mime=require('mime-types'),fs=require('fs'),gm=require('gm'),emptyFn=function(){},error_messages={EMPTY_FIELD:'No file was choosed. Please select one',MAX_FILES_NUMBER:'Maximum number of files is exceeded',INVALID_TYPE:'File type is not allowed for {file_name}',MAX_SIZE:'Files are too large',MAX_FILE_SIZE:'{file_name} is too large'};var Fileuploader=function(c,f,g,h){return this.req=g,this.res=h,this.options=extendDefaults.call(this,f,{limit:null,maxSize:null,fileMaxSize:null,extensions:null,required:!1,uploadDir:'uploads/',title:['auto',12],replace:!1,listInput:!0,files:[],move_uploaded_file:function(l){return fs.renameSync(l.tmp,l.file),!0},validate_file:null}),this.multer=multer({dest:this.options.uploadDir,fileFilter:fileFilter}),this.field={name:c,input:[],listInput:null},this};Fileuploader.prototype.getFileList=function(c){var f=[],g=this.options.files;return isset(c)?g.forEach(function(h){var l=getFileAttribute(h,c);f.push(l?l:h.file)}):f=g,f},Fileuploader.prototype.getUploadedFiles=function(){return this.options.files.filter(c=>isset(c.uploaded))},Fileuploader.prototype.getPreloadedFiles=function(){return this.options.files.filter(c=>!isset(c.uploaded))},Fileuploader.prototype.getRemovedFiles=function(c='file'){var f=[],g=this.options.files,h=this.field.listInput;return null!=h&&g.forEach(function(j,l,m){-1!=h.list.indexOf(getFileAttribute(j,c))||isset(j.uploaded)||(f.push(j),m.splice(l,1))}),f},Fileuploader.prototype.getListInput=function(){return this.field.listInput},Fileuploader.prototype.generateInput=function(){var c=[],f=Object.assign({},this.options,{name:this.field.name});for(var g in f){var h=f[g],j='data-fileuploader-'+g;h&&('limit'==g||'maxSize'==g||'fileMaxSize'==g?c.push({key:j,value:h}):'listInput'==g?c.push({key:j,value:'boolean'==typeof h?JSON.stringify(h):h}):'extensions'==g?c.push({key:j,value:h.join(',')}):'name'==g?c.push({key:g,value:h}):'required'==g?c.push({key:g,value:''}):'files'==g?c.push({key:j,value:JSON.stringify(h)}):void 0)}return'<input type="file" '+c.map(l=>l.key+'=\''+l.value.replace(/\'/g,'"')+'\'').join(' ')+'>'},Fileuploader.prototype.mimeContentType=function(c){return mime.lookup(c)},Fileuploader.prototype.upload=function(c){var f=this,g=1===f.options.limit?'single':'array',h={hasWarnings:!1,isSuccess:!0,warnings:[],files:[],_callback:c,_setStatus:function(j,l,m){var n=this,o=n._callback;if(null!==j&&(!0===j?n.isSuccess=!0:(n.isSuccess=!1,n.hasWarnings=!0,l&&n.warnings.push(l))),m&&'function'==typeof o){var p=!1;if(f.options.files.forEach(function(q){isset(q._processing)&&(q._processingCallback=function(){delete q._processing,delete q._processingCallback,n._setStatus(null,null,!0)},p=!0)}),p)return;delete n._callback,delete n._setStatus,o(n)}}};f.multer[g](f.field.name)(f.req,f.res,function(j){if(j)return h._setStatus(!1,{code:j.code,message:j.message},!0);var l='single'==g?[f.req.file]:f.req.files,m=f.req.body,n=isset(m)&&isset(m._chunkedd)&&1==l.length&&isJson(m._chunkedd)&&JSON.parse(m._chunkedd),o=validate_files.call(f,l);f.field.input=l.length,f.field.listInput=getListInputFiles.call(f,f.field.name),!0===o?handleUpload.call(f,l,h):h._setStatus(!1,{code:o,message:error_messages[o]},!0),l.forEach(function(p){unlinkTmp(p)})})};function handleUpload(c,f){for(var g=this,h=g.options,j=g.field.listInput,l=0;l<c.length;l++){var m={name:c[l].originalname,tmp:c[l].path,tmp_name:c[l].filename,type:c[l].mimetype,size:c[l].size},n='0:/'+m.name,o=null===j||-1<j.list.indexOf(n),p=pathinfo(m.name),q=new Date;m.oldname=m.name,m.oldtitle=p.title,m.extension=p.extension,m.title=m.oldtitle,m.size2=formatSize(m.size),m.name=generateFilename(h,m),m.title=pathinfo(m.name).title,m.file=h.uploadDir+m.name,m.replaced=fs.existsSync(g.options.uploadDir+m.name),m.date=q;var r=validate_files.call(g,m);if(!0!==r){if(!o)continue;f.files=[],f._setStatus(!1,{code:r,message:parseVariables(error_messages[r]||r,m)});break}else if(o){var s=0;j&&(s=j.list.indexOf(n),m.listProps=j.values[s],j.list.splice(s,1),j.values.splice(s,1)),f.files.push(m)}}return f.hasWarnings||f.files.forEach(function(t,u){h.move_uploaded_file(t)?(t.uploaded=!0,delete t.chunked,delete t.tmp,delete t.tmp_name,h.files.push(t)):f.files.splice(u,1)}),j&&h.files.forEach(function(t){if(!isset(t.listProps)){var w=j.list.indexOf(t.file);-1<w&&(t.listProps=j.values[w])}isset(t.listProps)&&(delete t.listProps.file,0==t.listProps.length&&delete t.listProps)}),f._setStatus(null,null,!0)}function validate_files(c){if(c instanceof Array){if(this.options.required&&0==c.length+this.options.files.length)return'EMPTY_FIELD';if(this.options.limit&&c.length+this.options.files.length>this.options.limit)return'MAX_FILES_NUMBER';if(this.options.maxSize&&(c.reduce((g,h)=>g+h.size,0)+this.options.files.reduce((g,h)=>g+h.size,0))/1e6>this.options.maxSize)return'MAX_SIZE'}else{if(this.options.extensions&&-1==this.options.extensions.indexOf(c.extension)&&-1==this.options.extensions.indexOf(c.type))return'INVALID_TYPE';if(this.options.fileMaxSize&&c.size/1e6>this.options.fileMaxSize)return'MAX_FILE_SIZE';var f='function'!=typeof this.options.validate_file||this.options.validate_file(file,this.options);if(!0!==f)return f}return!0}function extendDefaults(c,f){var g=this,h=Object.assign({},f,c||{});return h.files.forEach(function(j){j.type||(j.type=g.mimeContentType(j.relative_path||j.file)),j.appended=!0}),h}function fileFilter(c,f,g){g(null,!0)}function getFileAttribute(c,f){var g=null;return isset(c.data)&&isset(c.data[f])&&(g=c.data[f]),isset(c[f])&&(g=c[f]),g}function generateFilename(c,f){return filterFilename(f.name)}function getListInputFiles(c){var f='fileuploader-list-'+c,g=this.req.body,h=null;if('string'==typeof this.options.listInput&&(f=this.options.listInput),g&&g[f]&&isJson(g[f])){var j={list:[],values:JSON.parse(g[f])};j.values.forEach(function(l){j.list.push(l.file)}),h=j}return h}function parseVariables(c,f){return c+='',c=c.replace(/\{file_name\}/g,f.name),c=c.replace(/\{file_size\}/g,f.size),c=c.replace(/\{extension\}/g,f.extension),c}function random_string(c){for(var f='_0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',g='',h=0;h<c;h++)g+=f.charAt(Math.floor(Math.random()*f.length));return g}function pathinfo(c){var f=c.substr(0,c.lastIndexOf('/')),g=-1==c.indexOf('.')?'':c.split('.').pop().toLowerCase(),h=c.substr(f.length+(empty(f)?0:1),c.length-g.length-(empty(g)?0:1));return{path:f,title:h,extension:g}}function filterFilename(c){var f='_',g=/["<>#%\{\}\|\\\^~\[\]`;\?:@=&\*]/g;return c=c.replace(g,f),c=c.replace(/_{2,}/g,f),c}function formatSize(c){if(0==c)return'0 Byte';var f=1e3,h=Math.floor(Math.log(c)/Math.log(f));return(c/Math.pow(f,h)).toPrecision(3)+' '+['Bytes','KB','MB','GB','TB','PB','EB','ZB','YB'][h]}function unlinkTmp(c){fs.unlink(c.tmp||c.path,emptyFn)}function isJson(c){try{JSON.parse(c)}catch(f){return!1}return!0}function isset(c){return'undefined'!=typeof c}function empty(c){return 0===(c+'').length}module.exports=function(){return new Fileuploader(...arguments)}; |