mongoose as http client

[matrix_esp_thesis] / src / matrix_http_mongoose.c

diff --git a/src/matrix_http_mongoose.c b/src/matrix_http_mongoose.c
new file mode 100644 (file)
index 0000000..3faefa9
--- /dev/null
+++ b/src/matrix_http_mongoose.c
@@ -0,0 +1,153 @@
+#include "matrix.h"\r
+#include <stdio.h>\r
+#include <stdlib.h>\r
+#include <string.h>\r
+#include <stdbool.h>\r
+#include <mongoose.h>\r
+\r
+//#define HTTP_DATA_SIZE 1024\r
+\r
+typedef struct MatrixHttpConnection {\r
+    struct mg_mgr mgr;\r
+    struct mg_connection * connection;\r
+    bool connected;\r
+    char * data;\r
+    int dataCap;\r
+    int dataLen;\r
+    bool dataReceived;\r
+} MatrixHttpConnection;\r
+\r
+static void\r
+MatrixHttpCallback(\r
+    struct mg_connection *c,\r
+    int ev,\r
+    void *ev_data,\r
+    void *fn_data)\r
+{\r
+    MatrixClient * client = (MatrixClient *)fn_data;\r
+    MatrixHttpConnection * conn = (MatrixHttpConnection *)client->httpUserData;\r
+\r
+    if (ev == MG_EV_CONNECT)\r
+    {\r
+        struct mg_str host = mg_url_host(client->server);\r
+\r
+        // If s_url is https://, tell client connection to use TLS\r
+        if (mg_url_is_ssl(client->server))\r
+        {\r
+            struct mg_tls_opts opts = {.srvname = host};\r
+            mg_tls_init(c, &opts);\r
+        }\r
+\r
+        conn->connection = c;\r
+        conn->connected = true;\r
+    }\r
+    if (ev == MG_EV_HTTP_MSG)\r
+    {\r
+        // Response\r
+        struct mg_http_message *hm = (struct mg_http_message *)ev_data;\r
+        // memcpy_s(client->data, 1024, hm->message.ptr, hm->message.len);\r
+        // client->dataLen = hm->message.len;\r
+        memcpy_s(conn->data, conn->dataCap, hm->body.ptr, hm->body.len);\r
+        conn->dataLen = hm->body.len;\r
+        conn->dataReceived = true;\r
+    }\r
+}\r
+\r
+bool\r
+MatrixHttpInit(\r
+    MatrixClient * client)\r
+{\r
+    MatrixHttpConnection * conn =\r
+        (MatrixHttpConnection *)malloc(sizeof(MatrixHttpConnection));\r
+\r
+    client->httpUserData = conn;\r
+    \r
+    mg_mgr_init(&conn->mgr);\r
+\r
+    mg_http_connect(&conn->mgr, client->server, MatrixHttpCallback, client);\r
+\r
+    while (! conn->connected)\r
+        mg_mgr_poll(&conn->mgr, 1000);\r
+\r
+    return conn->connected;\r
+}\r
+\r
+bool\r
+MatrixHttpDeinit(\r
+    MatrixClient * client)\r
+{\r
+    MatrixHttpConnection * conn = (MatrixHttpConnection *)client->httpUserData;\r
+    \r
+    mg_mgr_free(&conn->mgr);\r
+\r
+    free(conn);\r
+\r
+    return true;\r
+}\r
+\r
+bool\r
+MatrixHttpGet(\r
+    MatrixClient * client,\r
+    const char * url,\r
+    char * outResponseBuffer, int outResponseCap, int * outResponseLen)\r
+{\r
+    MatrixHttpConnection * conn = (MatrixHttpConnection *)client->httpUserData;\r
+\r
+    conn->dataReceived = false;\r
+\r
+    struct mg_str host = mg_url_host(client->server);\r
+\r
+    mg_printf(conn->connection,\r
+        "GET %s HTTP/1.1\r\n"\r
+        "Host: %.*s\r\n"\r
+        "\r\n",\r
+        url,\r
+        host.len, host.ptr);\r
+\r
+    conn->data = outResponseBuffer;\r
+    conn->dataCap = outResponseCap;\r
+    \r
+    while (! conn->dataReceived)\r
+        mg_mgr_poll(&conn->mgr, 1000);\r
+\r
+    *outResponseLen = conn->dataLen;\r
+\r
+    return conn->dataReceived;\r
+}\r
+\r
+bool\r
+MatrixHttpPost(\r
+    MatrixClient * client,\r
+    const char * url,\r
+    char * requestBuffer, int requestLen,\r
+    char * outResponseBuffer, int outResponseCap, int * outResponseLen)\r
+{\r
+    MatrixHttpConnection * conn = (MatrixHttpConnection *)client->httpUserData;\r
+\r
+    conn->dataReceived = false;\r
+\r
+    struct mg_str host = mg_url_host(client->server);\r
+\r
+    mg_printf(conn->connection,\r
+            "POST %s HTTP/1.0\r\n"\r
+            "Host: %.*s\r\n"\r
+            "Content-Type: application/json\r\n"\r
+            "Content-Length: %d\r\n"\r
+            "\r\n"\r
+            "%s"\r
+            "\r\n",\r
+            url,\r
+            host.len, host.ptr,\r
+            requestLen,\r
+            requestBuffer);\r
+\r
+    conn->data = outResponseBuffer;\r
+    conn->dataCap = outResponseCap;\r
+    \r
+    while (! conn->dataReceived)\r
+        mg_mgr_poll(&conn->mgr, 1000);\r
+\r
+    *outResponseLen = conn->dataLen;\r
+\r
+    return conn->dataReceived;\r
+}
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