httpd - Add a cgi handler for handling post data and a system test to…

… curl post to the endpoint to check that it is working

Add the first system test to tests/ along with a CMakeLists.txt

CMakeLists.txt

@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.9)
 
+enable_testing()
+
 include(ExternalProject)
 
 set(DEFAULT_INSTALL_DIR ${CMAKE_BINARY_DIR}/install)
@@ -21,3 +23,15 @@ ExternalProject_Add(httpd
 	UPDATE_COMMAND ""
 	CMAKE_ARGS ${ARGS}
 )
+
+ExternalProject_Add(tests
+	SOURCE_DIR "${CMAKE_SOURCE_DIR}/tests"
+	DOWNLOAD_COMMAND ""
+	UPDATE_COMMAND ""
+	CMAKE_ARGS ${ARGS}
+)
+
+add_test(NAME test_post
+	COMMAND ${DEFAULT_INSTALL_DIR}/bin/test_post.sh
+	WORKING_DIRECTORY ${DEFAULT_INSTALL_DIR}/bin
+)

httpd/main.c

@@ -47,6 +47,27 @@ void myEchoWebsocketConnect(Websock *ws) {
     ws->recvCb = myEchoWebsocketRecv;
 }
 
+CgiStatus ICACHE_FLASH_ATTR cgiUploadTest(HttpdConnData *connData) {
+
+    printf("connData->post->len %d\n", connData->post->len);
+    printf("connData->post->received %d\n", connData->post->received);
+
+    if(connData->post->len == connData->post->received)
+    {
+        httpd_printf("Upload done. Sending response.\n");
+        httpdStartResponse(connData, 200);
+        httpdHeader(connData, "Content-Type", "text/plain");
+        httpdEndHeaders(connData);
+        httpdSend(connData, "Data received", -1);
+        httpdSend(connData, "\n", -1);
+
+        return HTTPD_CGI_DONE;
+    } else
+    {
+        return HTTPD_CGI_MORE;
+    }
+}
+
 int main()
 {
     HttpdBuiltInUrl builtInUrls[]={
@@ -56,6 +77,8 @@ int main()
         {"/websocket/ws.cgi", cgiWebsocket, myWebsocketConnect},
         {"/websocket/echo.cgi", cgiWebsocket, myEchoWebsocketConnect},
 
+        {"/upload", cgiUploadTest, NULL},
+
         {"*", cgiEspFsHook, NULL},
         {NULL, NULL, NULL}
     };

tests/CMakeLists.txt

@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 3.9)
+
+install(PROGRAMS test_post.sh DESTINATION bin)

tests/test_post.sh

@@ -0,0 +1,20 @@
+# test that we can perform a post of data to a cgi handler
+
+./httpd&
+httpd_pid=$!
+
+# generate some random data to upload
+# NOTE: This test was previously failing at a size of 300000 but would work at 100000,
+# so we are using 300000 here
+dd bs=1 count=300000 if=/dev/urandom of=testfile.bin
+
+timeout 5s curl -k -X POST https://localhost:9000/upload --data-binary @testfile.bin
+if [ $? -ne 0 ]
+then
+    exit_code=1
+fi
+
+# shut down httpd
+kill -KILL ${httpd_pid}
+
+exit ${exit_code}