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preparing Request abstraction, ongoing

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This commit is contained in:
Anselm R Garbe 2011-02-16 20:29:55 +00:00
parent a61a51b91d
commit d6cbb5b9d9
2 changed files with 44 additions and 21 deletions
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1
config.def.h
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@ -16,6 +16,7 @@ static const MimeType servermimes[] = {
{ "css", "text/css" },
{ "txt", "text/plain" },
{ "text", "text/plain" },
{ "md", "text/plain" },
{ "png", "image/png" },
{ "gif", "image/gif" },
{ "jpg", "image/jpg" },

64
quark.c
View file

@ -31,6 +31,27 @@ typedef struct {
const char *mimetype;
} MimeType;
typedef struct _Param Param;
struct _Param {
const char *key;
const char *value;
Param *next;
};
typedef struct {
int type;
int fd;
const char *hostname;
const char *resource;
Param *params;
} Request;
typedef struct {
const char *hostname;
const char *resource;
void (*handle)(const Request *r);
} RequestHandler;
static const char HttpOk[] = "200 OK";
static const char HttpMoved[] = "302 Moved Permanently";
static const char HttpUnauthorized[] = "401 Unauthorized";
@ -62,14 +83,15 @@ static char host[NI_MAXHOST];
static char reqbuf[MAXBUFLEN+1];
static char resbuf[MAXBUFLEN+1];
static char reqhost[256];
static int fd, cfd, reqtype;
static int fd;
static Request req;
ssize_t
writedata(const char *buf, size_t buf_len) {
ssize_t r, offset = 0;
while(offset < buf_len) {
if((r = write(cfd, buf + offset, buf_len - offset)) == -1) {
if((r = write(req.fd, buf + offset, buf_len - offset)) == -1) {
logerrmsg("client %s closed connection\n", host);
return -1;
}
@ -183,7 +205,7 @@ responsefiledata(int fd, off_t size) {
off_t offset = 0;
while(offset < size)
if(sendfile(cfd, fd, &offset, size - offset) == -1) {
if(sendfile(req.fd, fd, &offset, size - offset) == -1) {
logerrmsg("sendfile failed on client %s: %s\n", host, strerror(errno));
return;
}
@ -203,7 +225,7 @@ responsefile(void) {
;
else
return;
if(reqtype == GET)
if(req.type == GET)
writetext("\r\n<html><body>404 Not Found</body></html>\r\n");
}
else {
@ -221,7 +243,7 @@ responsefile(void) {
;
else
return;
if(reqtype == GET && writetext("\r\n") != -1)
if(req.type == GET && writetext("\r\n") != -1)
responsefiledata(ffd, st.st_size);
close(ffd);
}
@ -236,7 +258,7 @@ responsedirdata(DIR *d) {
;
else
return;
if(reqtype == GET) {
if(req.type == GET) {
if(writetext("\r\n<html><body><a href='..'>..</a><br>\r\n") == -1)
return;
while((e = readdir(d))) {
@ -271,7 +293,7 @@ responsedir(void) {
;
else
return;
if(reqtype == GET)
if(req.type == GET)
writetext("\r\n<html><body>301 Moved Permanently</a></body></html>\r\n");
return;
}
@ -295,9 +317,9 @@ responsecgi(void) {
FILE *cgi;
int r;
if(reqtype == GET)
if(req.type == GET)
setenv("REQUEST_METHOD", "GET", 1);
else if(reqtype == HEAD)
else if(req.type == HEAD)
setenv("REQUEST_METHOD", "HEAD", 1);
else
return;
@ -326,7 +348,7 @@ responsecgi(void) {
;
else
return;
if(reqtype == GET)
if(req.type == GET)
writetext("\r\n<html><body>404 Not Found</body></html>\r\n");
}
}
@ -344,7 +366,7 @@ response(void) {
;
else
return;
if(reqtype == GET)
if(req.type == GET)
writetext("\r\n<html><body>401 Unauthorized</body></html>\r\n");
return;
}
@ -366,7 +388,7 @@ request(void) {
size_t offset = 0;
do { /* MAXBUFLEN byte of reqbuf is emergency 0 terminator */
if((r = read(cfd, reqbuf + offset, MAXBUFLEN - offset)) == -1) {
if((r = read(req.fd, reqbuf + offset, MAXBUFLEN - offset)) == -1) {
logerrmsg("read: %s\n", strerror(errno));
return -1;
}
@ -392,16 +414,16 @@ request(void) {
*p = 0;
/* check command */
if(!strncmp(reqbuf, "GET ", 4) && reqbuf[4] == '/')
reqtype = GET;
req.type = GET;
else if(!strncmp(reqbuf, "HEAD ", 5) && reqbuf[5] == '/')
reqtype = HEAD;
req.type = HEAD;
else
goto invalid_request;
}
else
goto invalid_request;
/* determine path */
for(res = reqbuf + reqtype; *res && *(res + 1) == '/'; res++); /* strip '/' */
for(res = reqbuf + req.type; *res && *(res + 1) == '/'; res++); /* strip '/' */
if(!*res)
goto invalid_request;
for(p = res; *p && *p != ' ' && *p != '\t'; p++);
@ -423,7 +445,7 @@ serve(int fd) {
while(running) {
salen = sizeof sa;
if((cfd = accept(fd, &sa, &salen)) == -1) {
if((req.fd = accept(fd, &sa, &salen)) == -1) {
/* el cheapo socket release */
logerrmsg("cannot accept: %s, sleep a second...\n", strerror(errno));
sleep(1);
@ -435,15 +457,15 @@ serve(int fd) {
host[0] = 0;
getnameinfo(&sa, salen, host, sizeof host, NULL, 0, NI_NOFQDN);
result = request();
shutdown(cfd, SHUT_RD);
shutdown(req.fd, SHUT_RD);
if(result == 0)
response();
shutdown(cfd, SHUT_WR);
close(cfd);
shutdown(req.fd, SHUT_WR);
close(req.fd);
exit(EXIT_SUCCESS);
} else if (result == -1)
logerrmsg("fork failed: %s\n", strerror(errno));
close(cfd);
close(req.fd);
}
logmsg("shutting down\n");
}
@ -495,7 +517,7 @@ main(int argc, char *argv[]) {
/* arguments */
for(i = 1; i < argc; i++)
if(!strcmp(argv[i], "-v"))
die("quark-"VERSION", © 2009-2010 Anselm R Garbe\n");
die("quark-"VERSION", © 2009-2011 Anselm R Garbe\n");
else
die("usage: quark [-v]\n");