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Also use global static variable for parameter-related functions in opcuacolorchecker.cpp for more clarity. Change-Id: Iecb6ba56328a753c03762b32ed3176a034748cac Signed-off-by: Joakim Roubert <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /** | ||
| * Copyright (C) 2025, Axis Communications AB, Lund, Sweden | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| /** | ||
| * This header file handles the vdo part of the application. | ||
| */ | ||
|
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| #pragma once | ||
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| #include <axhttp.h> | ||
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| class CgiHandler | ||
| { | ||
| public: | ||
| CgiHandler( | ||
| gboolean (*GetColorAreaValue)(), | ||
| gboolean (*GetParamDouble)(const gchar *, double &), | ||
| gboolean (*PickCurrentCallback)()); | ||
| ~CgiHandler(); | ||
| static void RequestHandler( | ||
| const gchar *path, | ||
| const gchar *method, | ||
| const gchar *query, | ||
| GHashTable *params, | ||
| GOutputStream *output_stream, | ||
| gpointer user_data); | ||
|
|
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| private: | ||
| static void | ||
| WriteErrorResponse(GDataOutputStream &dos, const guint32 statuscode, const gchar *statusname, const gchar *msg); | ||
| static void WriteBadRequest(GDataOutputStream &dos, const gchar *msg); | ||
| static void WriteInternalError(GDataOutputStream &dos, const gchar *msg); | ||
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| gboolean (*GetColorAreaValue_)(); | ||
| gboolean (*GetParamDouble_)(const gchar *, double &); | ||
| gboolean (*PickCurrentCallback_)(); | ||
|
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| AXHttpHandler *http_handler_; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| /** | ||
| * Copyright (C) 2025, Axis Communications AB, Lund, Sweden | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| #include <assert.h> | ||
| #include <ostream> | ||
| #include <sstream> | ||
| #include <string> | ||
|
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| #include "CgiHandler.hpp" | ||
| #include "common.hpp" | ||
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| using namespace std; | ||
|
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| CgiHandler::CgiHandler( | ||
| gboolean (*GetColorAreaValue)(), | ||
| gboolean (*GetParamDouble)(const gchar *, double &), | ||
| gboolean (*PickCurrentCallback)()) | ||
| : GetColorAreaValue_(GetColorAreaValue), GetParamDouble_(GetParamDouble), PickCurrentCallback_(PickCurrentCallback), | ||
| http_handler_(ax_http_handler_new(this->RequestHandler, this)) | ||
| { | ||
| assert(nullptr != GetColorAreaValue_); | ||
| assert(nullptr != GetParamDouble_); | ||
| assert(nullptr != PickCurrentCallback_); | ||
| assert(nullptr != http_handler_); | ||
| } | ||
|
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| CgiHandler::~CgiHandler() | ||
| { | ||
| LOG_I("%s/%s: Free http handler ...", __FILE__, __FUNCTION__); | ||
| assert(nullptr != http_handler_); | ||
| ax_http_handler_free(http_handler_); | ||
| } | ||
|
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| void CgiHandler::WriteErrorResponse( | ||
| GDataOutputStream &dos, | ||
| const guint32 statuscode, | ||
| const gchar *statusname, | ||
| const gchar *msg) | ||
| { | ||
| ostringstream ss; | ||
| ss << "Status: " << statuscode << " " << statusname << "\r\n" | ||
| << "Content-Type: text/html\r\n" | ||
| << "\r\n" | ||
| << "<HTML><HEAD><TITLE>" << statuscode << " " << statusname << "</TITLE></HEAD>\n" | ||
| << "<BODY><H1>" << statuscode << " " << statusname << "</H1>\n" | ||
| << msg << "\n" | ||
| << "</BODY></HTML>\n"; | ||
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| g_data_output_stream_put_string(&dos, ss.str().c_str(), nullptr, nullptr); | ||
| } | ||
|
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| void CgiHandler::WriteBadRequest(GDataOutputStream &dos, const gchar *msg) | ||
| { | ||
| WriteErrorResponse(dos, 400, "Bad Request", msg); | ||
| } | ||
|
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| void CgiHandler::WriteInternalError(GDataOutputStream &dos, const gchar *msg) | ||
| { | ||
| WriteErrorResponse(dos, 500, "Internal Server Error", msg); | ||
| } | ||
|
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| void CgiHandler::RequestHandler( | ||
| const gchar *path, | ||
| const gchar *method, | ||
| const gchar *query, | ||
| GHashTable *params, | ||
| GOutputStream *output_stream, | ||
| gpointer user_data) | ||
| { | ||
| (void)method; | ||
| (void)query; | ||
| (void)params; | ||
|
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| auto dos = g_data_output_stream_new(output_stream); | ||
| assert(nullptr != dos); | ||
| assert(nullptr != user_data); | ||
| auto cgi_handler = static_cast<CgiHandler *>(user_data); | ||
|
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| const auto func = basename(const_cast<char *>(path)); | ||
| if (0 == strcmp("getstatus.cgi", func)) | ||
| { | ||
| assert(nullptr != cgi_handler->GetColorAreaValue_); | ||
| const auto status = cgi_handler->GetColorAreaValue_(); | ||
| g_data_output_stream_put_string(dos, "Status: 200 OK\r\n", nullptr, nullptr); | ||
| g_data_output_stream_put_string(dos, "Content-Type: application/json\r\n\r\n", nullptr, nullptr); | ||
| ostringstream ss; | ||
| ss << "{\"status\": " << (status ? "true" : "false") << "}" << endl; | ||
| g_data_output_stream_put_string(dos, ss.str().c_str(), nullptr, nullptr); | ||
| } | ||
| else if (0 == strcmp("pickcurrent.cgi", func)) | ||
| { | ||
| assert(nullptr != cgi_handler->PickCurrentCallback_); | ||
| if (!cgi_handler->PickCurrentCallback_()) | ||
| { | ||
| WriteInternalError(*dos, "Failed to pick current color"); | ||
| goto http_exit; | ||
| } | ||
|
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| double blue; | ||
| double green; | ||
| double red; | ||
| assert(nullptr != cgi_handler->GetParamDouble_); | ||
| if (!cgi_handler->GetParamDouble_("ColorB", blue) || !cgi_handler->GetParamDouble_("ColorG", green) || | ||
| !cgi_handler->GetParamDouble_("ColorR", red)) | ||
| { | ||
| WriteInternalError(*dos, "Inner parameter retrieval error"); | ||
| goto http_exit; | ||
| } | ||
| g_data_output_stream_put_string(dos, "Status: 200 OK\r\n", nullptr, nullptr); | ||
| g_data_output_stream_put_string(dos, "Content-Type: application/json\r\n\r\n", nullptr, nullptr); | ||
| ostringstream ss; | ||
| ss << "{\"R\":" << red << ", \"G\":" << green << ", \"B\":" << blue << "}" << endl; | ||
| g_data_output_stream_put_string(dos, ss.str().c_str(), nullptr, nullptr); | ||
| } | ||
| else | ||
| { | ||
| WriteBadRequest(*dos, "Unknown action"); | ||
| } | ||
| http_exit: | ||
| g_object_unref(dos); | ||
| } |
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