moxiecode/plupload
Plupload
Plupload ist eine JavaScript-Bibliothek für Datei-Uploads, die eine standardisierte Schnittstelle für die Verwaltung von Dateiübertragungen über verschiedene Browser-Laufzeitumgebungen und Umgebungen hinweg bietet. Es fungiert als browserübergreifende Upload-Schnittstelle und Manager, der Mehrfachauswahlen von Dateien und browserbasiertes Dateifiltern unterstützt.
Die Bibliothek zeichnet sich durch spezialisierte Funktionen für den Umgang mit großen Datenmengen und Cloud-Integration aus. Sie enthält einen Manager für stückweise Datei-Uploads (Chunked Uploads), um große Dateien in kleinere Teile aufzuteilen und so Server-Größenbeschränkungen zu umgehen, sowie einen clientseitigen Bildprozessor, um Bilder vor der Übertragung zu verkleinern und Metadaten zu entfernen. Zudem fungiert sie als S3-Direkt-Upload-Client, der es ermöglicht, Dateien mithilfe signierter Richtlinien und Zugriffsschlüssel direkt an Amazon S3-Buckets zu senden.
Das Projekt deckt ein breites Spektrum an Upload-Management-Funktionen ab, einschließlich Drag-and-Drop-Unterstützung, benutzerdefiniertem Dateifiltern nach MIME-Typ oder Erweiterung sowie der Möglichkeit, Binärdaten oder Multipart-Parameter zu senden. Es verwaltet zudem den Datenverkehr durch Wiederholungsversuche bei fehlgeschlagenen Uploads und unterstützt domänenübergreifende Anfragen via CORS oder Policy-Dateien.
Features
- File Upload - Provides a comprehensive JavaScript library for managing file selection and transmission across different browsers.
- Multi-Method File Uploads - Implements a comprehensive web interface for uploading multiple files via drag-and-drop and selection dialogs.
- Chunked Uploaders - Provides a mechanism to split large files into smaller binary segments to bypass server upload limits.
- S3 File Uploads - Implements client-side logic for sending files directly to Amazon S3 buckets using signed policies.
- Large File Uploads - Manages the transmission of oversized files by splitting them into chunks to bypass server limits.
- Runtime Abstraction Layers - Standardizes upload logic across HTML5, Flash, and Silverlight runtimes via a single abstraction layer.
- Cross-Browser API Standardizations - Standardizes file upload logic across different browser runtimes and environments using a single JavaScript API.
- Cross-Browser Upload Interfaces - Provides a standardized interface for managing file transfers across different browser runtimes including legacy fallback support.
- Direct-to-Cloud Uploads - Sends files directly from the browser to Amazon S3 buckets using signed policies and access keys.
- MIME Type and Extension Filters - Provides mechanisms to restrict files in the upload queue based on MIME type, file extension, or maximum size.
- File Type Restrictions - Limits which file types and sizes a user can add to the upload queue.
- Client-Side Compression - Downsizes and compresses images in the browser before upload to reduce bandwidth use.
- Binary Stream Uploads - Enables sending files as raw binary streams to servers that do not require multipart form-data.
- Upload Retry Mechanisms - Attempts to re-upload a file or chunk a specified number of times following an HTTP error.
- Multipart Form Uploads - Supports transmitting files and additional form parameters using the multipart/form-data standard.
- Custom Logic Filtering Hooks - Allows the creation of asynchronous validation rules to reject files based on custom logic or API checks.
- Upload Interface Customization - Provides pre-built components for implementing file selection and upload management interfaces.
- File Extension Filters - Restrict files selected via dialog or drag-and-drop based on file extensions and custom MIME type mappings.
- Bulk File Selection - Enables the selection of multiple files simultaneously from the system file dialog.
- File Upload Queue Widgets - Ships pre-built queue widgets and components to handle the visual flow of file transfers.
- Drag-and-Drop File Upload - Allows adding files or folders to the upload queue by dragging them from the desktop.
- Client-Side Resizing - Adjusts image dimensions in the browser before transmission to reduce bandwidth consumption.
- Metadata Stripping - Downsizes images and strips metadata headers before upload to reduce file size and save bandwidth.
- Image Resizing - Uses a browser canvas to resize images and reduce quality to save bandwidth before uploading.
- Client-Side Media Processors - Processes images in the browser to downsize and strip metadata before they are uploaded.
- Form Components - API for handling multiple file uploads and filtering.
- Form Components - Multi-runtime file upload API.
