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_Note: CppCMS 1.2.0 is future stable version of CppCMS 1.1 beta._
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# Major Changes in this version
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- Redesigned applications pool and its API
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- Redesigned applications pool and its API, now it wouldn't create more synchronous applications than threads available.
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- New non-blocking I/O mode
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- On-the-fly input content processing support
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- Independent of context use of cache and session interfaces
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- Support of non-cookies based session handling
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- Integration of session handling with 3rd part technologies: PHP, Java Servlet, Aps.Net and so on and contributed modules.
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- Major performance and memory use improvements.
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- Headers and Source separation by templates compiler. _Special thanks to Lee Elenbaas for the major contribution_.
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# Minor Changes
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- New options to internal file server: disable symbolic links changes and asynchronous operation mode.
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# API Improvements
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## CppCMS Library
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### Major API Changes in CppCMS:
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- `cppcms::http::response`
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- Flushing of `std::ostream &out()` now delegates to all underlying filters including gzip compression allowing to flush output in reliable way.
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- Added non-blocking AIO operation API
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- Added API to modify output buffer size
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- `cppcms::http::request`
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- Added an option to install custom content filters for asynchronous applications that would validate input on the fly
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- Added an option to modify various security limits for filters on per request basis,
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- `cppcms::cache_interface` - added an option to use it outside `cppcms::http::context` scope.
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- `cppcms::session_interface`
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- added an option to use outside of
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`cppcms::http::context` scope to enable external
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- added `session_interface_cookie_adapter` class to
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simulate cookies operation for non-cookies based
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session handling
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- added API to retrieve session keys
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- Introduced C API for access of CppCMS session for direct library access by other languages/platforms
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- `cppcms::applications_pool` - major API changes
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- Added an API that allows asynchronous applications to behave as uploaded content filters
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- Added `application_specific_pool` to handle generation of applications, mounting and unmounting them
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- New API for mounting applications with operation mode flags: asynchronous, synchronous, filtering and more.
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- Added different pool management strategies
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- Older style of application mounting isn't recommented to use any more, it will be deprecated in future versions
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- `cppcms::http::context`
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- Added an "official" method to "resubmit" context to a different pool or asynchrouns application
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- Added a context-specific storage API to attach generic data to the storage (for example for passing it between applications)
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### New Major CppCMS Classes:
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- `cppcms`
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- `session_interface_cookie_adapter` - a bridge to treat any storage as cookies
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- `application_specific_pool` - new applications factory
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- `cppcms::http`
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- `content_limits` - security limits for input data
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- `basic_content_filter`, `raw_content_filter`, `multipart_content_filter` - filters to handle uploaded content via POST or PUT methods.
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- C API Classes: `cppcms_capi_session_pool`, `cppcms_capi_session`, `cppcms_capi_cookie`;
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### Minor API Changes in CppCMS:
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- `cppcms::http::content_type` - added queries for multipart/form-data and url-encoded content types.
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- `cppcms::http::response` - Added `add_header()` function
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- `cppcms::http::file`
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- added API to modify various parameters
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- added API to get file size as 64 bit on systems std::streampos is 32 bit
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- now `data()` file pointer is independent of writing to file.
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- added option to specify specific output file rather than a random one.
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- `cppcms::http::cookie` - added API to get expiration times
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- `cppcms::widgets::base_widget` - added readonly attribute
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- `cppcms::url_dispatcher` - extended API to support up to 6 parameters.
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- `cppcms::application` - added option to attach unowned `cppcms::http::context`
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- `cppcms::view::generator` - added `enumerate()` function
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- `cppcms::json`
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- Added API to load data from `[char const *,char const *)` range
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- Added `to_json` API to convert strings directly
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- `cppcms::session_pool` - added an option to create one independently of `cppcms::service` for use in plugins.
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## Booster API Changes
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- `ptime `added operator `+=`/`-=`
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- Added `pointer_type` to `callback`
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- Added support of `ate` for `booster::nowide::fstream`
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### Booster.AIO
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- Added `bind` call to `basic_socket` to enable IP binding for both client and server ends.
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- `*_buffer` - added `size()` and `bytes_count()` functions
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- `stream_socket` - added `bytes_readable()` function
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- `basic_io_device` - added `set_non_blocking_if_needed` member function
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- `io_service` - additional `post()` options
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# Templates Compiler
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- Added option to generate separate API headers and C++ sources for both plugin management and optional compilation time improvements
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# Configuration Changes
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- `service.async_output_buffer_size` - default size of output buffer for asynchronous/non-blocking operations
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- `service.input_buffer_size` - default size of input buffer for multipart/form-data or raw content filter processing.
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- `service.disable_xpowered_by_version` - disable setting of version of CppCMS library in response headers.
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- `session.disable_automatic_load` - disable automatic load of CppCMS session - for non-cookies custom session storage for example
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- `file_server.check_symlink` - enable/disable symbolic links tracking by file server.
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- `file_server.async` - run file-server in asynchronous mode
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# Performance Improvements
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- Improved memory use and reduced memory copying in internal HTTP/FastCGI/SCGI APIs.
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- Switched to reactor rather than proactor IO model when possible
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- Improved parsing speed of JSON in about 2 times by using `std::streambuf` directly
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- Non-blocking operation mode option provides major performance improvements for asynchronous applications
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- Boost.RB-Shared memory allocator replaced with faster, simpler and well known Buddy memory allocator.
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# Internal Modifications
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- Redesigned internal IO models for performance improvements and non-blocking API support.
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- Removed dependency on local version of `cppcms_boost`
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# New Contrib (External) Modules
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- Google Recaptcha module
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- Server Sent-Events module
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- Session Interface Access from Java, PHP, Asp.Net and Python |
