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111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
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* File : webclient.h
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* COPYRIGHT (C) 2012-2013, Shanghai Real-Thread Technology Co., Ltd
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*
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* Change Logs:
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* Date Author Notes
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* 2013-05-05 Bernard the first version
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* 2015-11-14 aozima add content_length_remainder.
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*/
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#ifndef __WEBCLIENT_H__
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#define __WEBCLIENT_H__
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#include <stddef.h>
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#include <rtthread.h>
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#define WEBCLIENT_HEADER_BUFSZ 4096
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#define WEBCLIENT_RESPONSE_BUFSZ 4096
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//typedef unsigned int size_t;
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enum WEBCLIENT_STATUS
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{
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WEBCLIENT_OK,
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WEBCLIENT_NOMEM,
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WEBCLIENT_NOSOCKET,
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WEBCLIENT_NOBUFFER,
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WEBCLIENT_CONNECT_FAILED,
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WEBCLIENT_DISCONNECT,
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WEBCLIENT_FILE_ERROR,
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WEBCLIENT_TIMEOUT,
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};
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enum WEBCLIENT_METHOD
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{
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WEBCLIENT_USER_METHOD,
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WEBCLIENT_GET,
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WEBCLIENT_POST,
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};
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struct webclient_session
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{
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/* the session socket */
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int socket;
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/* the response code of HTTP request */
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int response;
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/* transfer encoding */
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char *transfer_encoding;
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int chunk_sz;
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int chunk_offset;
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/* content_type of HTTP response */
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char* content_type;
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/* content_length of HTTP response */
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int content_length;
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/* last modified timestamp of resource */
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char* last_modified;
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/* location */
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char* location;
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/* server host */
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char* host;
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/* HTTP request */
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char* request;
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/* private for webclient session. */
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/* position of reading */
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unsigned int position;
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/* remainder of content reading */
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size_t content_length_remainder;
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};
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struct webclient_session* webclient_open(const char* URI);
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struct webclient_session* webclient_open_position(const char* URI, int position);
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struct webclient_session* webclient_open_header(const char* URI, int method, const char* header, size_t header_sz);
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int webclient_close(struct webclient_session* session);
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int webclient_set_timeout(struct webclient_session* session, int millisecond);
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int webclient_read (struct webclient_session* session, unsigned char *buffer, size_t size);
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int webclient_write(struct webclient_session* session, const unsigned char *buffer, size_t size);
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int webclient_send_header(struct webclient_session* session, int method,
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const char *header, size_t header_sz);
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int webclient_connect(struct webclient_session* session, const char *URI);
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int webclient_handle_response(struct webclient_session* session);
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/* hight level APIs for HTTP client */
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int webclient_response(struct webclient_session* session, void **response);
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struct webclient_session* webclient_open_custom(const char* URI, int method,
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const char* header, size_t header_sz,
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const char* data, size_t data_sz);
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int webclient_transfer(const char* URI, const char* header, size_t header_sz,
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const char* data, size_t data_sz,
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char *result, size_t result_sz);
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#ifdef RT_USING_DFS
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int webclient_get_file(const char* URI, const char* filename);
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int webclient_post_file(const char* URI, const char* filename, const char* form_data);
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#endif
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#endif
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