PHP Private File Sharing Script

Script required to power private file sharing sites.? A similar site to review and understand project: [login to view URL] ? You can also use as a base, customize and improve the free software. ?REQUIREMENTS??* Web based file upload and management?- multiple simultaneous uploads, drag and drop to upload support, folder upload support (in chrome and other browsers with full html5 compatibility)?- folder management?- select by checkbox, delete/move files/folders ?- current file transfers?- download stats (total counts, bandwidth, for selected period, daily graph)??* Encryption?- file encryption on upload (files are stored only encrypted on server) ?- prevent 3rd party decryption (even by site owners)?- encryption public key generated based on A.E.S. And 2 keys - a file key generated for each file or folder on server (depending on settings) and a user key (known only by users); by default root folders have same key and each folder can be configured to have same key or different keys per file??* Share?- 2 methods : secret link with public key as parameter, link without key (shows a form to input public key)?- by file download link?- by folder shows list of files in folder with download links (for folders configured to have same key)?- report (shows form where complainer can submit copyright info for that download, requires email confirmation and automatically notifies owner by email on completion)??* Membership?- member registration with email confirmation, captcha?- edit account details?- view, upgrade membership subscription ??* Server file management - The files will be uploaded to host shared spaces, multi. The main program will be based on a different host space. ?- files are uploaded to other severs where some scripts for upload, access and stats are also installed (can also be on same server)?- folder and file names are stored as hashes (not with original names) on servers?- when a new folder is created it is stored on server with most space available ??* Backend?- custom membership types (name, description, max number of files, folders, disk space, monthly upload/download bandwidth, subscription price & period)?- billing by paypal + 1 alternate processor (suggest)?- automated ipn processing for billing, refunds, cancellations; complete info?- manage members; suspend user, view last 100 account access IPs with checkboxes and select all to ban?- report management (admins and see reports for submitted links, email user, block public/all access to file/folder and delete, suspend user)?- configure storage server (ftp details, web path to access script to access); see stats for each (available/used space)??* Multilanguage support?? ??PROJECT TERMS? Communication will be done via PMB in English.?A compatible hosting account will be provided to upload progress.?Progress updates should be sent as updated package and shown in demos at least 2 times per week. Developer must test all features and views prior to updates, fix any bugs and malfunctions to allow testing progress in good conditions.?Bid with realistic durations and include some extra time to make sure you can do it within the timeframe. Cancellation will be required if project is not ready within bid timeframe.? ?PAYMENT?Required amount will be escrow on project start and will be released when everything is done, functional, delivered as in project requirements. STEP expect more step for the realization, in order to pay for the work performed at each step ino. Step 1 realization demo site on a server step 2 make the site multi- step 3 enter the paid options Specify the total cost of the work and payments to each step Provide three months of bug fixes and host on your server, move on our server after 90 days