diff options
Diffstat (limited to 'icespider/core/ihttpRequest.h')
| -rw-r--r-- | icespider/core/ihttpRequest.h | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/icespider/core/ihttpRequest.h b/icespider/core/ihttpRequest.h index 5471209..fb56efb 100644 --- a/icespider/core/ihttpRequest.h +++ b/icespider/core/ihttpRequest.h @@ -9,6 +9,7 @@ #include <slicer/slicer.h> #include <Ice/Optional.h> #include <boost/lexical_cast.hpp> +#include "exceptions.h" namespace IceSpider { class Core; @@ -27,7 +28,7 @@ namespace IceSpider { virtual PathElements & getRequestPath() = 0; virtual HttpMethod getRequestMethod() const = 0; - const std::string & getURLParam(unsigned int) const; + OptionalString getURLParam(const unsigned int &) const; virtual OptionalString getQueryStringParam(const std::string_view &) const = 0; virtual OptionalString getHeaderParam(const std::string_view &) const = 0; virtual OptionalString getCookieParam(const std::string_view &) const = 0; @@ -41,8 +42,35 @@ namespace IceSpider { virtual std::ostream & dump(std::ostream & s) const = 0; + template<typename T, typename K> + inline + std::optional<T> getFrom(const K & key, OptionalString (IHttpRequest::*src)(const K &) const) const + { + if (auto v = (this->*src)(key)) { + if constexpr (std::is_convertible<std::string_view, T>::value) { + return *v; + } + else if constexpr (std::is_constructible<std::string_view, T>::value) { + return T(*v); + } + else { + try { + return boost::lexical_cast<T>(*v); + } + catch (const boost::bad_lexical_cast & e) { + throw Http400_BadRequest(); + } + } + } + else { + return std::nullopt; + } + } template<typename T> - T getURLParam(unsigned int) const; + T getURLParam(unsigned int n) const + { + return *getFrom<T, unsigned int>(n, &IHttpRequest::getURLParam); + } template<typename T> std::optional<T> getBody() const { @@ -79,11 +107,20 @@ namespace IceSpider { } } template<typename T> - std::optional<T> getQueryStringParam(const std::string_view & key) const; + std::optional<T> getQueryStringParam(const std::string_view & key) const + { + return getFrom<T, std::string_view>(key, &IHttpRequest::getQueryStringParam); + } template<typename T> - std::optional<T> getHeaderParam(const std::string_view & key) const; + std::optional<T> getHeaderParam(const std::string_view & key) const + { + return getFrom<T, std::string_view>(key, &IHttpRequest::getHeaderParam); + } template<typename T> - std::optional<T> getCookieParam(const std::string_view & key) const; + std::optional<T> getCookieParam(const std::string_view & key) const + { + return getFrom<T, std::string_view>(key, &IHttpRequest::getCookieParam); + } virtual void response(short, const std::string_view &) const = 0; template<typename T> void response(const IRouteHandler * route, const T & t) const |