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#include <pwd.h>

/* Compile time constants */
#define FILED_VERSION "1.1"
#define FILED_SENDFILE_MAX 16777215
#define FILED_MAX_FAILURE_COUNT 30
#define FILED_DEFAULT_TYPE "application/octet-stream"


/* Default values */
#define PORT 80
#define THREAD_COUNT 5
#define BIND_ADDR "::"
#define CACHE_SIZE 8209
#define LOG_FILE "-"
................................................................................
	const char *type;
};

/* Request variables */
struct filed_http_request {
	/** Buffers **/
	struct filed_fileinfo fileinfo;
	char path_b[1010];
	char tmpbuf[1010];

	/** HTTP Request information **/
	char *path;     /*** Path being requested ***/

	struct {
		struct {
................................................................................
			off_t length;   /*** Range length ***/
		} range;
	} headers;
};

/* Log record */
struct filed_log_entry {







	struct filed_log_entry *_next;
	struct filed_log_entry *_prev;


	pthread_t thread;



	char buffer[1010];











	int level;
};

/* Global variables */
/** Open File cache **/
struct filed_fileinfo *filed_fileinfo_fdcache = NULL;
unsigned int filed_fileinfo_fdcache_size = 0;

................................................................................
	}

	return(fd);
}

/* Log a message */
#ifdef FILED_DONT_LOG

#  define filed_logging_thread_init(x) 0
#  define filed_log_msg_debug(x, ...) /**/
#  define filed_log_msg(x, ...) /**/

#  define filed_log_ip(x, ...) "<unknown>"

#else
#ifdef FILED_DEBUG
#  define filed_log_msg_debug(x, ...) { fprintf(stderr, x, __VA_ARGS__); fprintf(stderr, "\n"); fflush(stderr); }
#else
#  define filed_log_msg_debug(x, ...) /**/
#endif

................................................................................
			curr->_prev = prev;

			prev = curr;
		}

		curr = prev;
		while (curr) {


			fprintf(fp, "%s THREAD=%llu TIME=%llu\n",








				curr->buffer,













				(unsigned long long) curr->thread,
				(unsigned long long) now
			);
			fflush(fp);

			prev = curr;
			curr = curr->_prev;
................................................................................
			free(prev);
		}
	}

	return(NULL);
}

static void filed_log_msg(const char *fmt, ...) {
	struct filed_log_entry *entry;
	va_list args;

	entry = malloc(sizeof(*entry));

	va_start(args, fmt);

	vsnprintf(entry->buffer, sizeof(entry->buffer), fmt, args);

	va_end(args);

	entry->thread = pthread_self();
	entry->level = 0;

	pthread_mutex_lock(&filed_log_msg_list_mutex);

	entry->_next = filed_log_msg_list;
	filed_log_msg_list = entry;

	pthread_mutex_unlock(&filed_log_msg_list_mutex);

	pthread_cond_signal(&filed_log_msg_list_ready);









































	return;
}

static const char *filed_log_ip(struct sockaddr *addr, char *buffer, size_t bufferlen) {
	struct sockaddr_in *addr_v4;
	struct sockaddr_in6 *addr_v6;
	const char *retval = NULL;
................................................................................
			retval = inet_ntop(AF_INET, &addr_v4->sin_addr, buffer, bufferlen);
			break;
		case AF_INET6:
			retval = inet_ntop(AF_INET6, &addr_v6->sin6_addr, buffer, bufferlen);
			break;
	}

	if (retval == NULL) {
		retval = "<unknown>";
	}

	return(retval);
}

static int filed_logging_thread_init(FILE *logfp) {
	struct filed_logging_thread_args *args;
	pthread_t thread_id;

................................................................................

	buffer = buffer_st->path_b;
	buffer_len = sizeof(buffer_st->path_b);

	tmpbuffer = buffer_st->tmpbuf;
	tmpbuffer_len = sizeof(buffer_st->tmpbuf);

	filed_log_msg("WAIT_FOR_REQUEST FD=%i", fd);

	fgets(buffer, buffer_len, fp);

	method = buffer;

	buffer = strchr(buffer, ' ');
	if (buffer == NULL) {
		filed_log_msg("GOT_REQUEST FD=%i ERROR=format", fd);

		return(NULL);
	}

	*buffer = '\0';
	buffer++;

	path = buffer;
................................................................................

	buffer = strchr(buffer, ' ');
	if (buffer != NULL) {
		*buffer = '\0';
		buffer++;
	}

	filed_log_msg("GOT_REQUEST FD=%i PATH=%s", fd, path);

	filed_log_msg("WAIT_FOR_HEADERS FD=%i", fd);

	for (i = 0; i < 100; i++) {
		fgets(tmpbuffer, tmpbuffer_len, fp);

		if (strncasecmp(tmpbuffer, "Range: ", 7) == 0) {
			workbuffer = tmpbuffer + 7;

			if (strncasecmp(workbuffer, "bytes=", 6) == 0) {
................................................................................
		}

		if (memcmp(tmpbuffer, "\r\n", 2) == 0) {
			break;
		}
	}

	filed_log_msg("GOT_HEADERS FD=%i", fd);

	/* We only handle the "GET" method */
	if (strcasecmp(method, "get") != 0) {
		return(NULL);
	}

	/* Determine range */
	if (range_end != 0) {
................................................................................
		(unsigned long long) strlen(error_string),
		"text/html",
		error_string
	);
}

/* Handle a single request from a client */
static void filed_handle_client(int fd, struct filed_http_request *request) {
	struct filed_fileinfo *fileinfo;
	ssize_t sendfile_ret;
	size_t sendfile_size;
	off_t sendfile_offset, sendfile_sent, sendfile_len;
	char *path;
	char *date_current, date_current_b[64];
	int http_code;
................................................................................
	}

	request = filed_get_http_request(fp, request);

	if (request == NULL || request->path == NULL) {
		filed_error_page(fp, date_current, 500);

		filed_log_msg("INVALID_REQUEST FD=%i ERROR=500", fd);





		fclose(fp);

		return;
	}

	if (request->headers.range.present) {
		filed_log_msg("PROCESS_REPLY_START FD=%i PATH=%s RANGE_START=%llu RANGE_LENGTH=%lli",
			fd,
			request->path,
			(unsigned long long) request->headers.range.offset,
			(long long) request->headers.range.length
		);
	} else {
		filed_log_msg("PROCESS_REPLY_START FD=%i PATH=%s", fd, request->path);
	}

	path = request->path;


	http_code = -1;

	fileinfo = filed_open_file(path, &request->fileinfo);
	if (fileinfo == NULL) {
		filed_error_page(fp, date_current, 404);

		filed_log_msg("PROCESS_REPLY_COMPLETE FD=%i ERROR=404", fd);



	} else {
		if (request->headers.range.offset != 0 || request->headers.range.length >= 0) {
			if (request->headers.range.offset >= fileinfo->len) {
				filed_log_msg("PROCESS_REPLY_COMPLETE FD=%i ERROR=416", fd);

				filed_error_page(fp, date_current, 416);



			} else {
				if (request->headers.range.length == ((off_t) -1)) {
					filed_log_msg_debug("Computing length to fit in bounds: fileinfo->len = %llu, request->headers.range.offset = %llu",
						(unsigned long long) fileinfo->len,
						(unsigned long long) request->headers.range.offset
					);

................................................................................
					(unsigned long long) (request->headers.range.offset + request->headers.range.length - 1),
					(unsigned long long) fileinfo->len
				);
			}
			fprintf(fp, "\r\n");
			fflush(fp);

			filed_log_msg("PROCESS_REPLY_COMPLETE FD=%i STATUS=%i", fd, http_code);






#ifdef FILED_NONBLOCK_HTTP
			int socket_flags;
			fd_set rfd, wfd;
			char sinkbuf[8192];
			ssize_t read_ret;

................................................................................
			FD_SET(fd, &rfd);
			FD_SET(fd, &wfd);

			socket_flags = fcntl(fd, F_GETFL);
			fcntl(fd, F_SETFL, socket_flags | O_NONBLOCK);
#endif

			filed_log_msg("SEND_START FILE_FD=%i FD=%i BYTES=%llu OFFSET=%llu",
				fileinfo->fd,
				fd,
				(unsigned long long) request->headers.range.length,
				(unsigned long long) request->headers.range.offset
			);

			sendfile_offset = request->headers.range.offset;
			sendfile_len = request->headers.range.length;
			sendfile_sent = 0;
			while (1) {
				if (sendfile_len > FILED_SENDFILE_MAX) {
					sendfile_size = FILED_SENDFILE_MAX;
				} else {
................................................................................
				sendfile_len -= sendfile_ret;
				sendfile_sent += sendfile_ret;
				if (sendfile_len == 0) {
					break;
				}
			}

			filed_log_msg("SEND_COMPLETE STATUS=%s FILE_FD=%i FD=%i BYTES=%llu BYTES_SENT=%llu",
				(sendfile_sent == request->headers.range.length) ? "OK" : "PARTIAL",
				fileinfo->fd,
				fd,
				(unsigned long long) request->headers.range.length,
				(unsigned long long) sendfile_sent
			);
		}

		close(fileinfo->fd);

		filed_log_msg("CLOSE_FILE FD=%i", fd);
	}

	filed_log_msg("CLOSE_CONNECTION FD=%i", fd);

	fclose(fp);

	return;
}

/* Handle incoming connections */
static void *filed_worker_thread(void *arg_v) {
	struct filed_worker_thread_args *arg;
	struct filed_http_request request;

	struct sockaddr_in6 addr;
	char logbuf_ip[128];
	socklen_t addrlen;
	int failure_count = 0, max_failure_count = FILED_MAX_FAILURE_COUNT;
	int master_fd, fd;

	/* Read arguments */
................................................................................

			failure_count++;

			continue;
		}

		/* Log the new connection */
		filed_log_msg("NEW_CONNECTION SRC_ADDR=%s SRC_PORT=%lu FD=%i",







			filed_log_ip((struct sockaddr *) &addr, logbuf_ip, sizeof(logbuf_ip)),


			(unsigned long) addr.sin6_port,
			fd
		);

		/* Reset failure count*/
		failure_count = 0;

		/* Handle socket */
		filed_handle_client(fd, &request);
	}

	/* Report error */
	filed_log_msg("THREAD_DIED ABNORMAL");

	return(NULL);








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#include <pwd.h>

/* Compile time constants */
#define FILED_VERSION "1.1"
#define FILED_SENDFILE_MAX 16777215
#define FILED_MAX_FAILURE_COUNT 30
#define FILED_DEFAULT_TYPE "application/octet-stream"
#define FILED_PATH_BUFFER_SIZE 1010

/* Default values */
#define PORT 80
#define THREAD_COUNT 5
#define BIND_ADDR "::"
#define CACHE_SIZE 8209
#define LOG_FILE "-"
................................................................................
	const char *type;
};

/* Request variables */
struct filed_http_request {
	/** Buffers **/
	struct filed_fileinfo fileinfo;
	char path_b[FILED_PATH_BUFFER_SIZE];
	char tmpbuf[1010];

	/** HTTP Request information **/
	char *path;     /*** Path being requested ***/

	struct {
		struct {
................................................................................
			off_t length;   /*** Range length ***/
		} range;
	} headers;
};

/* Log record */
struct filed_log_entry {
	/* Type of log entry */
	enum {
		FILED_LOG_TYPE_MESSAGE,
		FILED_LOG_TYPE_TRANSFER
	} type;

	/* Linked list head/tail */
	struct filed_log_entry *_next;
	struct filed_log_entry *_prev;

	/* Thread from which this log entry eminates */
	pthread_t thread;

	/* Message buffer for type = MESSAGE */
	/* Path buffer for type = TRANSFER */
	char buffer[FILED_PATH_BUFFER_SIZE];

	/* Items for type = TRANSFER */
	int http_code;
	const char *reason;
	time_t starttime;
	time_t endtime;
	off_t req_offset;
	off_t req_length;
	off_t sent_length;
	off_t file_length;
	char ip[128];
	int port;
};

/* Global variables */
/** Open File cache **/
struct filed_fileinfo *filed_fileinfo_fdcache = NULL;
unsigned int filed_fileinfo_fdcache_size = 0;

................................................................................
	}

	return(fd);
}

/* Log a message */
#ifdef FILED_DONT_LOG
struct filed_log_entry filed_dummy_log_entry;
#  define filed_logging_thread_init(x) 0
#  define filed_log_msg_debug(x, ...) /**/
#  define filed_log_msg(x, ...) /**/
#  define filed_log_entry(x) /**/
#  define filed_log_ip(x, ...) NULL
#  define filed_log_new(x) &filed_dummy_log_entry
#else
#ifdef FILED_DEBUG
#  define filed_log_msg_debug(x, ...) { fprintf(stderr, x, __VA_ARGS__); fprintf(stderr, "\n"); fflush(stderr); }
#else
#  define filed_log_msg_debug(x, ...) /**/
#endif

................................................................................
			curr->_prev = prev;

			prev = curr;
		}

		curr = prev;
		while (curr) {
			switch (curr->type) {
				case FILED_LOG_TYPE_MESSAGE:
					fprintf(fp, "%s", curr->buffer);

					break;
				case FILED_LOG_TYPE_TRANSFER:
					if (curr->endtime == ((time_t) -1)) {
						curr->endtime = now;
					}

					fprintf(fp, "TRANSFER PATH=%s SRC=%s:%i TIME.START=%llu TIME.END=%llu CODE.VALUE=%u CODE.REASON=%s REQUEST.OFFSET=%llu REQUEST.LENGTH=%llu FILE.LENGTH=%llu TRANSFER.LENGTH=%llu",
						curr->buffer,
						curr->ip, curr->port,
						(unsigned long long) curr->starttime,
						(unsigned long long) curr->endtime,
						curr->http_code, curr->reason,
						(unsigned long long) curr->req_offset,
						(unsigned long long) curr->req_length,
						(unsigned long long) curr->file_length,
						(unsigned long long) curr->sent_length
					);

					break;
			}
			fprintf(fp, " THREAD=%llu TIME=%llu\n",
				(unsigned long long) curr->thread,
				(unsigned long long) now
			);
			fflush(fp);

			prev = curr;
			curr = curr->_prev;
................................................................................
			free(prev);
		}
	}

	return(NULL);
}


static void filed_log_entry(struct filed_log_entry *entry) {










	entry->thread = pthread_self();


	pthread_mutex_lock(&filed_log_msg_list_mutex);

	entry->_next = filed_log_msg_list;
	filed_log_msg_list = entry;

	pthread_mutex_unlock(&filed_log_msg_list_mutex);

	pthread_cond_signal(&filed_log_msg_list_ready);

	return;
}

static struct filed_log_entry *filed_log_new(int initialize) {
	struct filed_log_entry *retval;

	retval = malloc(sizeof(*retval));

	if (initialize) {
		retval->buffer[0] = '\0';
		retval->http_code = -1;
		retval->starttime = 0;
		retval->endtime = 0;
		retval->req_offset = 0;
		retval->req_length = 0;
		retval->sent_length = 0;
		retval->file_length = 0;
		retval->ip[0] = '\0';
		retval->port = -1;
	}

	return(retval);
}

static void filed_log_msg(const char *fmt, ...) {
	struct filed_log_entry *entry;
	va_list args;

	entry = filed_log_new(0);

	va_start(args, fmt);

	vsnprintf(entry->buffer, sizeof(entry->buffer), fmt, args);

	va_end(args);

	entry->type = FILED_LOG_TYPE_MESSAGE;

	filed_log_entry(entry);

	return;
}

static const char *filed_log_ip(struct sockaddr *addr, char *buffer, size_t bufferlen) {
	struct sockaddr_in *addr_v4;
	struct sockaddr_in6 *addr_v6;
	const char *retval = NULL;
................................................................................
			retval = inet_ntop(AF_INET, &addr_v4->sin_addr, buffer, bufferlen);
			break;
		case AF_INET6:
			retval = inet_ntop(AF_INET6, &addr_v6->sin6_addr, buffer, bufferlen);
			break;
	}





	return(retval);
}

static int filed_logging_thread_init(FILE *logfp) {
	struct filed_logging_thread_args *args;
	pthread_t thread_id;

................................................................................

	buffer = buffer_st->path_b;
	buffer_len = sizeof(buffer_st->path_b);

	tmpbuffer = buffer_st->tmpbuf;
	tmpbuffer_len = sizeof(buffer_st->tmpbuf);



	fgets(buffer, buffer_len, fp);

	method = buffer;

	buffer = strchr(buffer, ' ');
	if (buffer == NULL) {


		return(NULL);
	}

	*buffer = '\0';
	buffer++;

	path = buffer;
................................................................................

	buffer = strchr(buffer, ' ');
	if (buffer != NULL) {
		*buffer = '\0';
		buffer++;
	}





	for (i = 0; i < 100; i++) {
		fgets(tmpbuffer, tmpbuffer_len, fp);

		if (strncasecmp(tmpbuffer, "Range: ", 7) == 0) {
			workbuffer = tmpbuffer + 7;

			if (strncasecmp(workbuffer, "bytes=", 6) == 0) {
................................................................................
		}

		if (memcmp(tmpbuffer, "\r\n", 2) == 0) {
			break;
		}
	}



	/* We only handle the "GET" method */
	if (strcasecmp(method, "get") != 0) {
		return(NULL);
	}

	/* Determine range */
	if (range_end != 0) {
................................................................................
		(unsigned long long) strlen(error_string),
		"text/html",
		error_string
	);
}

/* Handle a single request from a client */
static void filed_handle_client(int fd, struct filed_http_request *request, struct filed_log_entry *log) {
	struct filed_fileinfo *fileinfo;
	ssize_t sendfile_ret;
	size_t sendfile_size;
	off_t sendfile_offset, sendfile_sent, sendfile_len;
	char *path;
	char *date_current, date_current_b[64];
	int http_code;
................................................................................
	}

	request = filed_get_http_request(fp, request);

	if (request == NULL || request->path == NULL) {
		filed_error_page(fp, date_current, 500);

		log->buffer[0] = '\0';
		log->http_code = 500;
		log->reason = "format";

		filed_log_entry(log);

		fclose(fp);

		return;
	}












	path = request->path;
	strcpy(log->buffer, path);

	http_code = -1;

	fileinfo = filed_open_file(path, &request->fileinfo);
	if (fileinfo == NULL) {
		filed_error_page(fp, date_current, 404);

		log->http_code = 404;
		log->reason = "open_failed";

		filed_log_entry(log);
	} else {
		if (request->headers.range.offset != 0 || request->headers.range.length >= 0) {
			if (request->headers.range.offset >= fileinfo->len) {
				filed_error_page(fp, date_current, 416);

				log->http_code = 416;
				log->reason = "range_invalid";

				filed_log_entry(log);
			} else {
				if (request->headers.range.length == ((off_t) -1)) {
					filed_log_msg_debug("Computing length to fit in bounds: fileinfo->len = %llu, request->headers.range.offset = %llu",
						(unsigned long long) fileinfo->len,
						(unsigned long long) request->headers.range.offset
					);

................................................................................
					(unsigned long long) (request->headers.range.offset + request->headers.range.length - 1),
					(unsigned long long) fileinfo->len
				);
			}
			fprintf(fp, "\r\n");
			fflush(fp);

			log->http_code = http_code;
			log->reason = "OK";
			log->starttime = time(NULL);
			log->req_offset = request->headers.range.offset;
			log->req_length = request->headers.range.length;
			log->file_length = fileinfo->len;

#ifdef FILED_NONBLOCK_HTTP
			int socket_flags;
			fd_set rfd, wfd;
			char sinkbuf[8192];
			ssize_t read_ret;

................................................................................
			FD_SET(fd, &rfd);
			FD_SET(fd, &wfd);

			socket_flags = fcntl(fd, F_GETFL);
			fcntl(fd, F_SETFL, socket_flags | O_NONBLOCK);
#endif








			sendfile_offset = request->headers.range.offset;
			sendfile_len = request->headers.range.length;
			sendfile_sent = 0;
			while (1) {
				if (sendfile_len > FILED_SENDFILE_MAX) {
					sendfile_size = FILED_SENDFILE_MAX;
				} else {
................................................................................
				sendfile_len -= sendfile_ret;
				sendfile_sent += sendfile_ret;
				if (sendfile_len == 0) {
					break;
				}
			}

			log->endtime = (time_t) -1;
			log->sent_length = sendfile_sent;

			filed_log_entry(log);



		}

		close(fileinfo->fd);
	}





	fclose(fp);

	return;
}

/* Handle incoming connections */
static void *filed_worker_thread(void *arg_v) {
	struct filed_worker_thread_args *arg;
	struct filed_http_request request;
	struct filed_log_entry *log;
	struct sockaddr_in6 addr;
	char logbuf_ip[128];
	socklen_t addrlen;
	int failure_count = 0, max_failure_count = FILED_MAX_FAILURE_COUNT;
	int master_fd, fd;

	/* Read arguments */
................................................................................

			failure_count++;

			continue;
		}

		/* Log the new connection */
		log = filed_log_new(1);
		if (log == NULL) {
			close(fd);

			continue;
		}

		log->type = FILED_LOG_TYPE_TRANSFER;
		if (filed_log_ip((struct sockaddr *) &addr, log->ip, sizeof(log->ip)) == NULL) {
			log->ip[0] = '\0';
		}
		log->port = addr.sin6_port;



		/* Reset failure count*/
		failure_count = 0;

		/* Handle socket */
		filed_handle_client(fd, &request, log);
	}

	/* Report error */
	filed_log_msg("THREAD_DIED ABNORMAL");

	return(NULL);