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#include <signal.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#ifdef NO_GC
#include <gc.h>
#define malloc(n) GC_malloc(n)
#else
#include <stdlib.h>
#endif
#include "resHeader.h"
#include "reqHeader.h"
#include "file.h"
#include "log.h"
#include "mime.h"
int srvSocket;
void safeExit(int sig) {
info("Exiting...\n");
#ifdef NO_GC
GC_gcollect();
#endif
close(srvSocket);
_exit(0);
}
void segfault(int sig) {
warn("may or may not have segfaulted\n");
#ifdef NO_GC
GC_gcollect();
#endif
}
int handle(int client) {
ReqHeader request = readReqHeader(client);
ResHeader rawHeader;
if (errno == -1) {
warn("somehow we got a NULL request????\n");
rawHeader.status = 500;
rawHeader.notice = "Internal Server Error";
char* tmpHeader = malloc(1024);
makeHeader(tmpHeader, &rawHeader);
send(client, tmpHeader, strlen(tmpHeader), 0);
close(client);
return 0;
} else {
rawHeader.status = 200;
rawHeader.notice = "OK";
}
int useBinary = getMime(&rawHeader.mime, request.path);
if (errno == -1) {
rawHeader.status = 404;
rawHeader.notice = "Not Found";
} else if (errno > 0 && !(hasTriedIndex == 2)) {
rawHeader.status = 500;
rawHeader.notice = "Internal Server Error";
}
errno = 0;
hasTriedIndex = 0;
reqlog("%d %s\n", rawHeader.status, request.path);
char tmpHeader[1024];
makeHeader(tmpHeader, &rawHeader);
send(client, tmpHeader, strlen(tmpHeader), 0);
void* file;
if (!useBinary) {
file = readFile(request.path);
send(client, file, strlen(file), 0);
} else {
int len;
file = readFileBin(&len, request.path);
send(client, file, len, 0);
}
close(client);
return 0;
}
int srv(char* ADDR, int PORT) {
struct sockaddr_in srvAddr;
srvSocket = socket(AF_INET, SOCK_STREAM, 0);
srvAddr.sin_family = AF_INET;
srvAddr.sin_port = htons(PORT);
srvAddr.sin_addr.s_addr = inet_addr(ADDR);
int opt = 1;
setsockopt(srvSocket, SOL_SOCKET, SO_REUSEADDR, (void *)opt, sizeof(int));
opt = 0;
setsockopt(srvSocket, SOL_SOCKET, SO_LINGER, (void *)opt, sizeof(int));
if (bind(
srvSocket,
(struct sockaddr*)&srvAddr,
sizeof(srvAddr)
) < 0) {
error("Failed to bind to %s:%d.\n", ADDR, PORT);
return 1;
}
if (listen(srvSocket, 10) < 0) {
error("Unable to listen on %s:%d.\n", ADDR, PORT);
return 1;
}
signal(SIGINT, safeExit);
//signal(SIGSEGV, segfault);
info("Server (probably) listening on http://%s:%d\n", ADDR, PORT);
while(1) {
int client = accept(srvSocket, NULL, NULL);
handle(client);
}
}