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#ifndef NETDATA_WEB_CLIENT_H
#define NETDATA_WEB_CLIENT_H 1
#define DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS 60
extern int web_client_timeout;
#ifdef NETDATA_WITH_ZLIB
extern int web_enable_gzip, web_gzip_level, web_gzip_strategy, web_donotrack_comply;
#endif /* NETDATA_WITH_ZLIB */
#define WEB_CLIENT_MODE_NORMAL 0
#define WEB_CLIENT_MODE_FILECOPY 1
#define WEB_CLIENT_MODE_OPTIONS 2
#define URL_MAX 8192
#define ZLIB_CHUNK 16384
#define HTTP_RESPONSE_HEADER_SIZE 4096
#define COOKIE_MAX 1024
#define ORIGIN_MAX 1024
struct response {
BUFFER *header; // our response header
BUFFER *header_output; // internal use
BUFFER *data; // our response data buffer
int code; // the HTTP response code
size_t rlen; // if non-zero, the excepted size of ifd (input of firecopy)
size_t sent; // current data length sent to output
int zoutput; // if set to 1, web_client_send() will send compressed data
#ifdef NETDATA_WITH_ZLIB
z_stream zstream; // zlib stream for sending compressed output to client
Bytef zbuffer[ZLIB_CHUNK]; // temporary buffer for storing compressed output
size_t zsent; // the compressed bytes we have sent to the client
size_t zhave; // the compressed bytes that we have received from zlib
int zinitialized:1;
#endif /* NETDATA_WITH_ZLIB */
};
struct web_client {
unsigned long long id;
uint8_t obsolete:1; // if set to 1, the listener will remove this client
// after setting this to 1, you should not touch
// this web_client
uint8_t dead:1; // if set to 1, this client is dead
uint8_t keepalive:1; // if set to 1, the web client will be re-used
uint8_t mode:3; // the operational mode of the client
uint8_t wait_receive:1; // 1 = we are waiting more input data
uint8_t wait_send:1; // 1 = we have data to send to the client
uint8_t donottrack:1; // 1 = we should not set cookies on this client
uint8_t tracking_required:1; // 1 = if the request requires cookies
int tcp_cork; // 1 = we have a cork on the socket
int ifd;
int ofd;
char client_ip[NI_MAXHOST+1];
char client_port[NI_MAXSERV+1];
char decoded_url[URL_MAX + 1]; // we decode the URL in this buffer
char last_url[URL_MAX+1]; // we keep a copy of the decoded URL here
struct timeval tv_in, tv_ready;
char cookie1[COOKIE_MAX+1];
char cookie2[COOKIE_MAX+1];
char origin[ORIGIN_MAX+1];
struct sockaddr_storage clientaddr;
struct response response;
size_t stats_received_bytes;
size_t stats_sent_bytes;
pthread_t thread; // the thread servicing this client
struct web_client *prev;
struct web_client *next;
};
#define WEB_CLIENT_IS_DEAD(w) (w)->dead=1
extern struct web_client *web_clients;
extern uid_t web_files_uid(void);
extern uid_t web_files_gid(void);
extern struct web_client *web_client_create(int listener);
extern struct web_client *web_client_free(struct web_client *w);
extern ssize_t web_client_send(struct web_client *w);
extern ssize_t web_client_receive(struct web_client *w);
extern void web_client_process(struct web_client *w);
extern void web_client_reset(struct web_client *w);
extern void *web_client_main(void *ptr);
#endif
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