1 files changed, 136 insertions, 0 deletions
diff --git a/src/aclk/https_client.h b/src/aclk/https_client.h
new file mode 100644
index 000000000..bc5ca30b8
--- /dev/null
+++ b/src/aclk/https_client.h
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_HTTPS_CLIENT_H
+#define NETDATA_HTTPS_CLIENT_H
+
+#include "libnetdata/libnetdata.h"
+
+#include "mqtt_websockets/c-rbuf/cringbuffer.h"
+#include "mqtt_websockets/c_rhash/c_rhash.h"
+
+typedef enum http_req_type {
+    HTTP_REQ_GET = 0,
+    HTTP_REQ_POST,
+    HTTP_REQ_CONNECT,
+    HTTP_REQ_INVALID
+} http_req_type_t;
+
+typedef struct {
+    http_req_type_t request_type;
+
+    char *host;
+    int port;
+    char *url;
+
+    time_t timeout_s; //timeout in seconds for the network operation (send/recv)
+
+    void *payload;
+    size_t payload_size;
+
+    char *proxy_host;
+    int proxy_port;
+    const char *proxy_username;
+    const char *proxy_password;
+} https_req_t;
+
+typedef struct {
+    int http_code;
+
+    void *payload;
+    size_t payload_size;
+} https_req_response_t;
+
+
+// Non feature complete URL parser
+// feel free to extend when needed
+// currently implements only what ACLK
+// needs
+// proto://host[:port]/path
+typedef struct {
+    char *proto;
+    char *host;
+    int port;
+    char* path;
+} url_t;
+
+int url_parse(const char *url, url_t *parsed);
+void url_t_destroy(url_t *url);
+
+void https_req_response_free(https_req_response_t *res);
+
+#define HTTPS_REQ_RESPONSE_T_INITIALIZER            \
+    {                                               \
+        .http_code = 0,                             \
+        .payload = NULL,                            \
+        .payload_size = 0                           \
+    }
+
+#define HTTPS_REQ_T_INITIALIZER                     \
+    {                                               \
+        .request_type = HTTP_REQ_GET,               \
+        .host = NULL,                               \
+        .port = 443,                                \
+        .url = NULL,                                \
+        .timeout_s = 30,                            \
+        .payload = NULL,                            \
+        .payload_size = 0,                          \
+        .proxy_host = NULL,                         \
+        .proxy_port = 8080                          \
+    }
+
+int https_request(https_req_t *request, https_req_response_t *response);
+
+// we expose previously internal parser as this is usefull also from
+// other parts of the code
+enum http_parse_state {
+    HTTP_PARSE_PROXY_CONNECT = 0,
+    HTTP_PARSE_INITIAL,
+    HTTP_PARSE_HEADERS,
+    HTTP_PARSE_CONTENT
+};
+
+typedef uint32_t parse_ctx_flags_t;
+
+#define HTTP_PARSE_FLAG_DONT_WAIT_FOR_CONTENT ((parse_ctx_flags_t)0x01)
+
+#define HTTP_PARSE_FLAGS_DEFAULT ((parse_ctx_flags_t)0)
+
+typedef struct {
+    parse_ctx_flags_t flags;
+
+    enum http_parse_state state;
+    int content_length;
+    int http_code;
+
+    c_rhash headers;
+
+    // for chunked data only
+    char *chunked_response;
+    size_t chunked_response_size;
+    size_t chunked_response_written;
+
+    enum chunked_content_state {
+        CHUNKED_CONTENT_CHUNK_SIZE = 0,
+        CHUNKED_CONTENT_CHUNK_DATA,
+        CHUNKED_CONTENT_CHUNK_END_CRLF,
+        CHUNKED_CONTENT_FINAL_CRLF
+    } chunked_content_state;
+
+    size_t chunk_size;
+    size_t chunk_got;
+} http_parse_ctx;
+
+void http_parse_ctx_create(http_parse_ctx *ctx, enum http_parse_state parse_state);
+void http_parse_ctx_destroy(http_parse_ctx *ctx);
+
+typedef enum {
+    HTTP_PARSE_ERROR = -1,
+    HTTP_PARSE_NEED_MORE_DATA = 0,
+    HTTP_PARSE_SUCCESS = 1
+} http_parse_rc;
+
+http_parse_rc parse_http_response(rbuf_t buf, http_parse_ctx *parse_ctx);
+
+const char *get_http_header_by_name(http_parse_ctx *ctx, const char *name);
+
+#endif /* NETDATA_HTTPS_CLIENT_H */