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Experiment of notification via NotifyClient + JSON API

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This commit is contained in:
Gioacchino Mazzurco 2018-06-29 16:03:09 +02:00
parent 130007b578
commit 1bc518041c
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GPG Key ID: A1FBCA3872E87051
5 changed files with 142 additions and 50 deletions
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69
libretroshare/src/jsonapi/jsonapi.cpp
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@ -18,19 +18,40 @@
#include "jsonapi.h"
#include <rapid_json/document.h>
#include <rapid_json/writer.h>
#include <rapid_json/stringbuffer.h>
// Generated at compile time
#include "jsonapi-wrappers.h"
JsonApiServer::JsonApiServer(
uint16_t port, const std::function<void(int)> shutdownCallback) :
mPort(port), mShutdownCallback(shutdownCallback)
mPort(port), mShutdownCallback(shutdownCallback), notifyClientWrapper(*this)
{
registerHandler("/jsonApiServer/shutdown",
[this](const std::shared_ptr<restbed::Session>)
[this](const std::shared_ptr<rb::Session>)
{
shutdown();
});
registerHandler("/jsonApiServer/notifications",
[this](const std::shared_ptr<rb::Session> session)
{
const auto headers = std::multimap<std::string, std::string>
{
{ "Connection", "keep-alive" },
{ "Cache-Control", "no-cache" },
{ "Content-Type", "text/event-stream" },
};
session->yield(rb::OK, headers,
[this](const std::shared_ptr<rb::Session> session)
{
notifySessions.push_back(session);
} );
} );
// Generated at compile time
#include "jsonapi-register.inl"
}
@ -59,3 +80,47 @@ void JsonApiServer::shutdown(int exitCode)
mService.stop();
mShutdownCallback(exitCode);
}
void JsonApiServer::cleanClosedNotifySessions()
{
notifySessions.erase(
std::remove_if(
notifySessions.begin(), notifySessions.end(),
[](const std::shared_ptr<rb::Session> &s)
{ return s->is_closed(); } ), notifySessions.end());
}
JsonApiServer::NotifyClientWrapper::NotifyClientWrapper(JsonApiServer& parent) :
NotifyClient(), mJsonApiServer(parent)
{
rsNotify->registerNotifyClient(static_cast<NotifyClient*>(this));
}
void JsonApiServer::NotifyClientWrapper::notifyTurtleSearchResult(
uint32_t searchId, const std::list<TurtleFileInfo>& files )
{
mJsonApiServer.cleanClosedNotifySessions();
RsGenericSerializer::SerializeContext cAns;
RsJson& jAns(cAns.mJson);
// serialize parameters and method name to JSON
{
std::string methodName("NotifyClient/notifyTurtleSearchResult");
std::list<TurtleFileInfo> filesCopy(files);
RsGenericSerializer::SerializeContext& ctx(cAns);
RsGenericSerializer::SerializeJob j(RsGenericSerializer::TO_JSON);
RS_SERIAL_PROCESS(methodName);
RS_SERIAL_PROCESS(searchId);
// RS_SERIAL_PROCESS(filesCopy);
}
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
jAns.Accept(writer);
std::string message(buffer.GetString(), buffer.GetSize());
message.insert(0, "data: "); message.append("\n\n");
for(auto session : mJsonApiServer.notifySessions)
session->yield(message);
}

21
libretroshare/src/jsonapi/jsonapi.h
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@ -19,16 +19,12 @@
#include <string>
#include <memory>
#include <restbed>
#include <rapid_json/document.h>
#include "retroshare/rsgxschannels.h"
#include "serialiser/rstypeserializer.h"
#include "util/rsthreads.h"
#include "retroshare/rsnotify.h"
namespace rb = restbed;
void apiVersionHandler(const std::shared_ptr<rb::Session> session);
void createChannelHandler(const std::shared_ptr<rb::Session> session);
/**
* Simple usage
@ -74,5 +70,20 @@ private:
uint16_t mPort;
rb::Service mService;
const std::function<void(int)> mShutdownCallback;
std::list<std::shared_ptr<rb::Session> > notifySessions;
void cleanClosedNotifySessions();
struct NotifyClientWrapper : NotifyClient
{
NotifyClientWrapper(JsonApiServer& parent);
void notifyTurtleSearchResult(
uint32_t searchId, const std::list<TurtleFileInfo>& files);
private:
JsonApiServer& mJsonApiServer;
};
NotifyClientWrapper notifyClientWrapper;
};

66
libretroshare/src/retroshare/rsnotify.h
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@ -181,7 +181,7 @@ class RsFeedItem
// This mechanism can be used in plugins, new services, etc.
//
class NotifyClient ;
struct NotifyClient;
class RsNotify
{
@ -206,44 +206,42 @@ class RsNotify
virtual bool setDisableAskPassword (const bool /*bValue*/) { return false ; }
};
class NotifyClient
struct NotifyClient
{
public:
NotifyClient() {}
virtual ~NotifyClient() {}
NotifyClient() {}
virtual ~NotifyClient() {}
virtual void notifyListPreChange (int /* list */, int /* type */) {}
virtual void notifyListChange (int /* list */, int /* type */) {}
virtual void notifyErrorMsg (int /* list */, int /* sev */, std::string /* msg */) {}
virtual void notifyChatMessage (const ChatMessage& /* msg */) {}
virtual void notifyChatStatus (const ChatId& /* chat_id */, const std::string& /* status_string */) {}
virtual void notifyChatCleared (const ChatId& /* chat_id */) {}
virtual void notifyChatLobbyEvent (uint64_t /* lobby id */, uint32_t /* event type */ ,const RsGxsId& /* nickname */,const std::string& /* any string */) {}
virtual void notifyChatLobbyTimeShift (int /* time_shift*/) {}
virtual void notifyCustomState (const std::string& /* peer_id */, const std::string& /* status_string */) {}
virtual void notifyHashingInfo (uint32_t /* type */, const std::string& /* fileinfo */) {}
virtual void notifyTurtleSearchResult (uint32_t /* search_id */, const std::list<TurtleFileInfo>& /* files */) {}
virtual void notifyListPreChange (int /* list */, int /* type */) {}
virtual void notifyListChange (int /* list */, int /* type */) {}
virtual void notifyErrorMsg (int /* list */, int /* sev */, std::string /* msg */) {}
virtual void notifyChatMessage (const ChatMessage& /* msg */) {}
virtual void notifyChatStatus (const ChatId& /* chat_id */, const std::string& /* status_string */) {}
virtual void notifyChatCleared (const ChatId& /* chat_id */) {}
virtual void notifyChatLobbyEvent (uint64_t /* lobby id */, uint32_t /* event type */ ,const RsGxsId& /* nickname */,const std::string& /* any string */) {}
virtual void notifyChatLobbyTimeShift (int /* time_shift*/) {}
virtual void notifyCustomState (const std::string& /* peer_id */, const std::string& /* status_string */) {}
virtual void notifyHashingInfo (uint32_t /* type */, const std::string& /* fileinfo */) {}
virtual void notifyTurtleSearchResult (uint32_t /* search_id */, const std::list<TurtleFileInfo>& /* files */) {}
#warning MISSING CODE HERE
// virtual void notifyTurtleSearchResult (uint32_t /* search_id */, const std::list<TurtleGxsInfo >& /* groups */) {}
virtual void notifyPeerHasNewAvatar (std::string /* peer_id */) {}
virtual void notifyOwnAvatarChanged () {}
virtual void notifyOwnStatusMessageChanged () {}
virtual void notifyDiskFull (uint32_t /* location */, uint32_t /* size limit in MB */) {}
virtual void notifyPeerStatusChanged (const std::string& /* peer_id */, uint32_t /* status */) {}
virtual void notifyGxsChange (const RsGxsChanges& /* changes */) {}
virtual void notifyConnectionWithoutCert () {}
// virtual void notifyTurtleSearchResult (uint32_t /* search_id */, const std::list<TurtleGxsInfo >& /* groups */) {}
virtual void notifyPeerHasNewAvatar (std::string /* peer_id */) {}
virtual void notifyOwnAvatarChanged () {}
virtual void notifyOwnStatusMessageChanged () {}
virtual void notifyDiskFull (uint32_t /* location */, uint32_t /* size limit in MB */) {}
virtual void notifyPeerStatusChanged (const std::string& /* peer_id */, uint32_t /* status */) {}
virtual void notifyGxsChange (const RsGxsChanges& /* changes */) {}
virtual void notifyConnectionWithoutCert () {}
/* one or more peers has changed the states */
virtual void notifyPeerStatusChangedSummary () {}
virtual void notifyDiscInfoChanged () {}
/* one or more peers has changed the states */
virtual void notifyPeerStatusChangedSummary () {}
virtual void notifyDiscInfoChanged () {}
virtual bool askForDeferredSelfSignature (const void * /* data */, const uint32_t /* len */, unsigned char * /* sign */, unsigned int * /* signlen */,int& signature_result , std::string /*reason = ""*/) { signature_result = false ;return true; }
virtual void notifyDownloadComplete (const std::string& /* fileHash */) {}
virtual void notifyDownloadCompleteCount (uint32_t /* count */) {}
virtual void notifyHistoryChanged (uint32_t /* msgId */, int /* type */) {}
virtual bool askForPassword (const std::string& /* title */, const std::string& /* key_details */, bool /* prev_is_bad */, std::string& /* password */,bool& /* cancelled */ ) { return false ;}
virtual bool askForPluginConfirmation (const std::string& /* plugin_filename */, const std::string& /* plugin_file_hash */,bool /* first_time */) { return false ;}
virtual bool askForDeferredSelfSignature (const void * /* data */, const uint32_t /* len */, unsigned char * /* sign */, unsigned int * /* signlen */,int& signature_result , std::string /*reason = ""*/) { signature_result = false ;return true; }
virtual void notifyDownloadComplete (const std::string& /* fileHash */) {}
virtual void notifyDownloadCompleteCount (uint32_t /* count */) {}
virtual void notifyHistoryChanged (uint32_t /* msgId */, int /* type */) {}
virtual bool askForPassword (const std::string& /* title */, const std::string& /* key_details */, bool /* prev_is_bad */, std::string& /* password */,bool& /* cancelled */ ) { return false ;}
virtual bool askForPluginConfirmation (const std::string& /* plugin_filename */, const std::string& /* plugin_file_hash */,bool /* first_time */) { return false ;}
};
#endif

31
libretroshare/src/retroshare/rsturtle.h
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@ -29,12 +29,18 @@
#include "serialiser/rstlvbinary.h"
#include "retroshare/rstypes.h"
#include "retroshare/rsgxsifacetypes.h"
#include "serialiser/rsserializable.h"
namespace RsRegularExpression { class LinearizedExpression ; }
class RsTurtleClientService ;
class RsTurtle;
extern RsTurtle *rsTurtle ;
/**
* Pointer to global instance of RsTurtle service implementation
* @jsonapi{development}
*/
extern RsTurtle* rsTurtle;
typedef uint32_t TurtleRequestId ;
typedef RsPeerId TurtleVirtualPeerId;
@ -42,11 +48,20 @@ typedef RsPeerId TurtleVirtualPeerId;
// This is the structure used to send back results of the turtle search
// to the notifyBase class, or send info to the GUI.
struct TurtleFileInfo
struct TurtleFileInfo //: RsSerializable
{
RsFileHash hash ;
std::string name ;
uint64_t size ;
RsFileHash hash;
std::string name;
uint64_t size;
/*
/// @see RsSerializable::serial_process
void serial_process( RsGenericSerializer::SerializeJob j,
RsGenericSerializer::SerializeContext& ctx )
{
RS_SERIAL_PROCESS(hash);
RS_SERIAL_PROCESS(name);
RS_SERIAL_PROCESS(size);
}*/
};
struct TurtleTunnelRequestDisplayInfo
@ -90,7 +105,7 @@ class TurtleTrafficStatisticsInfo
//
class RsTurtle
{
public:
public:
RsTurtle() {}
virtual ~RsTurtle() {}
@ -106,7 +121,9 @@ class RsTurtle
// the request id, which will be further used by the gui to store results
// as they come back.
//
virtual TurtleRequestId turtleSearch(unsigned char *search_bin_data,uint32_t search_bin_data_len,RsTurtleClientService *client_service) =0;
virtual TurtleRequestId turtleSearch(
unsigned char *search_bin_data, uint32_t search_bin_data_len,
RsTurtleClientService* client_service ) = 0;
// Initiates tunnel handling for the given file hash. tunnels. Launches
// an exception if an error occurs during the initialization process. The

5
libretroshare/src/serialiser/rsbaseserial.cc
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@ -244,9 +244,10 @@ bool getRawString(const void *data, uint32_t size, uint32_t *offset, std::string
}
/* check there is space for string */
if(len > size || size-len < *offset) // better than if(size < *offset + len) because it avoids integer overflow
if(len > size || size-len < *offset) // better than if(size < *offset + len) because it avoids integer overflow
{
std::cerr << "getRawString() not enough size" << std::endl;
std::cerr << "getRawString() not enough size" << std::endl;
print_stacktrace();
return false;
}
uint8_t *buf = &(((uint8_t *) data)[*offset]);