add HTTP POST support

libretro-common/include/net/net_http.h

@@ -34,7 +34,7 @@ RETRO_BEGIN_DECLS
 struct http_t;
 struct http_connection_t;
 
-struct http_connection_t *net_http_connection_new(const char *url);
+struct http_connection_t *net_http_connection_new(const char *url, const char *method, const char *data);
 
 bool net_http_connection_iterate(struct http_connection_t *conn);
 

libretro-common/net/net_http.c

@@ -68,10 +68,12 @@ struct http_connection_t
    char *location;
    char *urlcopy;
    char *scan;
+   char *methodcopy;
+   char *contenttypecopy;
+   char *postdatacopy;
    int port;
 };
 
-
 static int net_http_new_socket(const char *domain, int port)
 {
    int ret;
@@ -140,7 +142,7 @@ static char* urlencode(const char* url)
    return ret;
 }
 
-struct http_connection_t *net_http_connection_new(const char *url)
+struct http_connection_t *net_http_connection_new(const char *url, const char *method, const char *data)
 {
    char **domain = NULL;
    struct http_connection_t *conn = (struct http_connection_t*)calloc(1, 
@@ -151,6 +153,12 @@ struct http_connection_t *net_http_connection_new(const char *url)
 
    conn->urlcopy = urlencode(url);
 
+   if (method)
+      conn->methodcopy = strdup(method);
+
+   if (data)
+      conn->postdatacopy = strdup(data);
+
    if (!conn->urlcopy)
       goto error;
 
@@ -166,7 +174,13 @@ struct http_connection_t *net_http_connection_new(const char *url)
 error:
    if (conn->urlcopy)
       free(conn->urlcopy);
+   if (conn->methodcopy)
+      free(conn->methodcopy);
+   if (conn->postdatacopy)
+      free(conn->postdatacopy);
    conn->urlcopy = NULL;
+   conn->methodcopy = NULL;
+   conn->postdatacopy = NULL;
    free(conn);
    return NULL;
 }
@@ -221,6 +235,20 @@ void net_http_connection_free(struct http_connection_t *conn)
    if (conn->urlcopy)
       free(conn->urlcopy);
 
+   if (conn->methodcopy)
+      free(conn->methodcopy);
+
+   if (conn->contenttypecopy)
+      free(conn->contenttypecopy);
+
+   if (conn->postdatacopy)
+      free(conn->postdatacopy);
+
+   conn->urlcopy = NULL;
+   conn->methodcopy = NULL;
+   conn->contenttypecopy = NULL;
+   conn->postdatacopy = NULL;
+
    free(conn);
 }
 
@@ -245,7 +273,16 @@ struct http_t *net_http_new(struct http_connection_t *conn)
    error = false;
 
    /* This is a bit lazy, but it works. */
-   net_http_send_str(fd, &error, "GET /");
+   if (conn->methodcopy)
+   {
+      net_http_send_str(fd, &error, conn->methodcopy);
+      net_http_send_str(fd, &error, " /");
+   }
+   else
+   {
+      net_http_send_str(fd, &error, "GET /");
+   }
+
    net_http_send_str(fd, &error, conn->location);
    net_http_send_str(fd, &error, " HTTP/1.1\r\n");
 
@@ -263,9 +300,45 @@ struct http_t *net_http_new(struct http_connection_t *conn)
    }
 
    net_http_send_str(fd, &error, "\r\n");
+
+   /* this is not being set anywhere yet */
+   if (conn->contenttypecopy)
+   {
+      net_http_send_str(fd, &error, "Content-Type: ");
+      net_http_send_str(fd, &error, conn->contenttypecopy);
+      net_http_send_str(fd, &error, "\r\n");
+   }
+
+   if (conn->methodcopy && string_is_equal(conn->methodcopy, "POST"))
+   {
+      size_t post_len, len;
+      char *len_str;
+
+      if (!conn->postdatacopy)
+         goto error;
+
+      if (!conn->contenttypecopy)
+         net_http_send_str(fd, &error, "Content-Type: application/x-www-form-urlencoded\r\n");
+
+      net_http_send_str(fd, &error, "Content-Length: ");
+
+      post_len = strlen(conn->postdatacopy);
+      len = snprintf(NULL, 0, "%lu", post_len);
+      len_str = (char*)malloc(len);
+
+      snprintf(len_str, len, "%lu", post_len);
+
+      len_str[len - 1] = '\0';
+
+      net_http_send_str(fd, &error, len_str);
+   }
+
    net_http_send_str(fd, &error, "Connection: close\r\n");
    net_http_send_str(fd, &error, "\r\n");
 
+   if (conn->methodcopy && string_is_equal(conn->methodcopy, "POST"))
+      net_http_send_str(fd, &error, conn->postdatacopy);
+
    if (error)
       goto error;
 
@@ -287,6 +360,13 @@ struct http_t *net_http_new(struct http_connection_t *conn)
    return state;
 
 error:
+   if (conn->methodcopy)
+      free(conn->methodcopy);
+   if (conn->contenttypecopy)
+      free(conn->contenttypecopy);
+   conn->methodcopy = NULL;
+   conn->contenttypecopy = NULL;
+   conn->postdatacopy = NULL;
    if (fd >= 0)
       socket_close(fd);
    if (state)

network/net_http_special.c

@@ -30,7 +30,7 @@ int net_http_get(const char **result, size_t *size, const char *url, retro_time_
    int ret                        = NET_HTTP_GET_OK;
    struct http_t* http            = NULL;
    retro_time_t t0                = cpu_features_get_time_usec();
-   struct http_connection_t *conn = net_http_connection_new(url);
+   struct http_connection_t *conn = net_http_connection_new(url, "GET", NULL);
 
    *result = NULL;
 

tasks/task_http.c

@@ -235,12 +235,11 @@ static bool task_http_retriever(retro_task_t *task, void *data)
    return true;
 }
 
-void *task_push_http_transfer(const char *url, bool mute, const char *type,
+static void* task_push_http_transfer_generic(struct http_connection_t *conn, const char *url, bool mute, const char *type,
       retro_task_callback_t cb, void *user_data)
 {
    task_finder_data_t find_data;
    char tmp[255];
-   struct http_connection_t *conn = NULL;
    retro_task_t  *t               = NULL;
    http_handle_t *http            = NULL;
 
@@ -259,8 +258,6 @@ void *task_push_http_transfer(const char *url, bool mute, const char *type,
       return NULL;
    }
 
-   conn = net_http_connection_new(url);
-
    if (!conn)
       return NULL;
 
@@ -308,6 +305,26 @@ error:
    return NULL;
 }
 
+void* task_push_http_transfer(const char *url, bool mute, const char *type,
+      retro_task_callback_t cb, void *user_data)
+{
+   struct http_connection_t *conn;
+
+   conn = net_http_connection_new(url, "GET", NULL);
+
+   return task_push_http_transfer_generic(conn, url, mute, type, cb, user_data);
+}
+
+void* task_push_http_post_transfer(const char *url, const char *post_data, bool mute,
+      const char *type, retro_task_callback_t cb, void *user_data)
+{
+   struct http_connection_t *conn;
+
+   conn = net_http_connection_new(url, "POST", post_data);
+
+   return task_push_http_transfer_generic(conn, url, mute, type, cb, user_data);
+}
+
 task_retriever_info_t *http_task_get_transfer_list(void)
 {
    task_retriever_data_t retrieve_data;

tasks/tasks_internal.h

@@ -86,6 +86,9 @@ typedef struct
 void *task_push_http_transfer(const char *url, bool mute, const char *type,
       retro_task_callback_t cb, void *userdata);
 
+void *task_push_http_post_transfer(const char *url, const char *post_data, bool mute, const char *type,
+      retro_task_callback_t cb, void *userdata);
+
 task_retriever_info_t *http_task_get_transfer_list(void);
 
 bool task_push_wifi_scan(void);