2009-03-28 12:24:51 +00:00
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "fastcgi.h"
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#include <arpa/inet.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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2009-04-05 18:45:49 +00:00
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typedef struct fastcgi_queue_link {
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GList queue_link;
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enum { FASTCGI_QUEUE_STRING, FASTCGI_QUEUE_BYTEARRAY } elem_type;
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} fastcgi_queue_link;
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2009-03-28 12:24:51 +00:00
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/* some util functions */
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2009-11-11 20:14:53 +00:00
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#define GSTR_LEN(x) ((x) ? (x)->str : ""), ((x) ? (x)->len : 0)
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#define GBARR_LEN(x) ((x)->data), ((x)->len)
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2009-03-28 12:24:51 +00:00
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#define UNUSED(x) ((void)(x))
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#define ERROR(...) g_printerr("fastcgi.c:" G_STRINGIFY(__LINE__) ": " __VA_ARGS__)
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static void fd_init(int fd) {
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#ifdef _WIN32
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int i = 1;
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#endif
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#ifdef FD_CLOEXEC
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/* close fd on exec (cgi) */
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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#endif
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#ifdef O_NONBLOCK
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fcntl(fd, F_SETFL, O_NONBLOCK | O_RDWR);
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#elif defined _WIN32
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ioctlsocket(fd, FIONBIO, &i);
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#endif
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}
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2009-04-05 18:45:49 +00:00
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static fastcgi_queue_link* fastcgi_queue_link_new_string(GString *s) {
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fastcgi_queue_link *l = g_slice_new0(fastcgi_queue_link);
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l->queue_link.data = s;
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l->elem_type = FASTCGI_QUEUE_STRING;
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return l;
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}
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static fastcgi_queue_link* fastcgi_queue_link_new_bytearray(GByteArray *a) {
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fastcgi_queue_link *l = g_slice_new0(fastcgi_queue_link);
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l->queue_link.data = a;
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l->elem_type = FASTCGI_QUEUE_BYTEARRAY ;
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return l;
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}
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static void fastcgi_queue_link_free(fastcgi_queue *queue, fastcgi_queue_link *l) {
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switch (l->elem_type) {
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case FASTCGI_QUEUE_STRING:
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if (queue) queue->length -= ((GString*)l->queue_link.data)->len;
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g_string_free(l->queue_link.data, TRUE);
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break;
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case FASTCGI_QUEUE_BYTEARRAY:
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if (queue) queue->length -= ((GByteArray*)l->queue_link.data)->len;
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g_byte_array_free(l->queue_link.data, TRUE);
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break;
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}
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g_slice_free(fastcgi_queue_link, l);
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}
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static fastcgi_queue_link *fastcgi_queue_peek_head(fastcgi_queue *queue) {
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return (fastcgi_queue_link*) g_queue_peek_head_link(&queue->queue);
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}
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static fastcgi_queue_link *fastcgi_queue_pop_head(fastcgi_queue *queue) {
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return (fastcgi_queue_link*) g_queue_pop_head_link(&queue->queue);
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}
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void fastcgi_queue_clear(fastcgi_queue *queue) {
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fastcgi_queue_link *l;
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queue->offset = 0;
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while (NULL != (l = fastcgi_queue_pop_head(queue))) {
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fastcgi_queue_link_free(queue, l);
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}
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g_assert(0 == queue->length);
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}
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void fastcgi_queue_append_string(fastcgi_queue *queue, GString *buf) {
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fastcgi_queue_link *l;
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if (!buf) return;
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if (!buf->len) { g_string_free(buf, TRUE); return; }
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l = fastcgi_queue_link_new_string(buf);
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g_queue_push_tail_link(&queue->queue, (GList*) l);
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queue->length += buf->len;
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}
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void fastcgi_queue_append_bytearray(fastcgi_queue *queue, GByteArray *buf) {
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fastcgi_queue_link *l;
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if (!buf) return;
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if (!buf->len) { g_byte_array_free(buf, TRUE); return; }
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l = fastcgi_queue_link_new_bytearray(buf);
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g_queue_push_tail_link(&queue->queue, (GList*) l);
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queue->length += buf->len;
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}
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/* return values: 0 ok, -1 error, -2 con closed */
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gint fastcgi_queue_write(int fd, fastcgi_queue *queue, gsize max_write) {
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gsize rem_write = max_write;
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g_assert(rem_write <= G_MAXSSIZE);
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#ifdef TCP_CORK
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int corked = 0;
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#endif
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#ifdef TCP_CORK
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/* Linux: put a cork into the socket as we want to combine the write() calls
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* but only if we really have multiple chunks
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*/
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if (queue->queue.length > 1) {
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corked = 1;
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setsockopt(fd, IPPROTO_TCP, TCP_CORK, &corked, sizeof(corked));
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}
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#endif
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while (rem_write > 0 && queue->length > 0) {
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fastcgi_queue_link *l = fastcgi_queue_peek_head(queue);
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gsize towrite, datalen;
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gssize res;
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gchar *data;
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switch (l->elem_type) {
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case FASTCGI_QUEUE_STRING:
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data = ((GString*) l->queue_link.data)->str;
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datalen = towrite = ((GString*) l->queue_link.data)->len;
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break;
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case FASTCGI_QUEUE_BYTEARRAY:
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data = (gchar*) ((GByteArray*) l->queue_link.data)->data;
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datalen = towrite = ((GByteArray*) l->queue_link.data)->len;
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break;
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default:
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g_error("invalid fastcgi_queue_link type\n");
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}
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towrite -= queue->offset; data += queue->offset;
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if (towrite > rem_write) towrite = rem_write;
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res = write(fd, data, towrite);
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if (-1 == res) {
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#ifdef TCP_CORK
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if (corked) {
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corked = 0;
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setsockopt(fd, IPPROTO_TCP, TCP_CORK, &corked, sizeof(corked));
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}
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#endif
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switch (errno) {
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case EINTR:
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case EAGAIN:
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#if EWOULDBLOCK != EAGAIN
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case EWOULDBLOCK:
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#endif
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return 0; /* try again later */
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case ECONNRESET:
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case EPIPE:
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return -2;
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default:
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ERROR("write to fd=%d failed, %s\n", fd, g_strerror(errno) );
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return -1;
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}
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} else {
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queue->offset += res;
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rem_write -= res;
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if (queue->offset == datalen) {
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queue->offset = 0;
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fastcgi_queue_link_free(queue, fastcgi_queue_pop_head(queue));
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}
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}
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}
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#ifdef TCP_CORK
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if (corked) {
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corked = 0;
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setsockopt(fd, IPPROTO_TCP, TCP_CORK, &corked, sizeof(corked));
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}
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#endif
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return 0;
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}
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2009-03-28 12:24:51 +00:00
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static void ev_io_add_events(struct ev_loop *loop, ev_io *watcher, int events) {
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if ((watcher->events & events) == events) return;
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ev_io_stop(loop, watcher);
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ev_io_set(watcher, watcher->fd, watcher->events | events);
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ev_io_start(loop, watcher);
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}
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static void ev_io_rem_events(struct ev_loop *loop, ev_io *watcher, int events) {
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if (0 == (watcher->events & events)) return;
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ev_io_stop(loop, watcher);
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ev_io_set(watcher, watcher->fd, watcher->events & ~events);
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ev_io_start(loop, watcher);
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}
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/* end: some util functions */
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2009-11-11 20:14:53 +00:00
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static const guint8 __padding[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
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2009-03-28 12:24:51 +00:00
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2009-11-11 20:14:53 +00:00
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static void append_padding_str(GString *s, guint8 padlen) {
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g_string_append_len(s, (const gchar*) __padding, padlen);
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}
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static void append_padding_bytearray(GByteArray *a, guint8 padlen) {
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g_byte_array_append(a, __padding, padlen);
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2009-03-28 12:24:51 +00:00
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}
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/* returns padding length */
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2009-11-11 20:14:53 +00:00
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static guint8 stream_build_fcgi_record(GByteArray *buf, guint8 type, guint16 requestid, guint16 datalen) {
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2009-03-28 12:24:51 +00:00
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guint8 padlen = (8 - (datalen & 0x7)) % 8; /* padding must be < 8 */
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2009-11-11 20:14:53 +00:00
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/* alloc enough space */
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g_byte_array_set_size(buf, FCGI_HEADER_LEN);
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buf->len = 0;
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buf->data[buf->len++] = FCGI_VERSION_1;
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buf->data[buf->len++] = type;
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buf->data[buf->len++] = (guint8) (requestid >> 8);
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buf->data[buf->len++] = (guint8) (requestid);
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buf->data[buf->len++] = (guint8) (datalen >> 8);
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buf->data[buf->len++] = (guint8) (datalen);
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buf->data[buf->len++] = padlen;
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buf->data[buf->len++] = 0;
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2009-03-28 12:24:51 +00:00
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return padlen;
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}
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/* returns padding length */
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2009-04-05 18:45:49 +00:00
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static guint8 stream_send_fcgi_record(fastcgi_queue *out, guint8 type, guint16 requestid, guint16 datalen) {
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2009-11-11 20:14:53 +00:00
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GByteArray *record = g_byte_array_sized_new(FCGI_HEADER_LEN);
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2009-03-28 12:24:51 +00:00
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guint8 padlen = stream_build_fcgi_record(record, type, requestid, datalen);
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2009-11-11 20:14:53 +00:00
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fastcgi_queue_append_bytearray(out, record);
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2009-03-28 12:24:51 +00:00
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return padlen;
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}
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2009-11-11 20:14:53 +00:00
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static void stream_send_data(fastcgi_queue *out, guint8 type, guint16 requestid, const guint8 *data, size_t datalen) {
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2009-03-28 12:24:51 +00:00
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while (datalen > 0) {
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guint16 tosend = (datalen > G_MAXUINT16) ? G_MAXUINT16 : datalen;
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guint8 padlen = stream_send_fcgi_record(out, type, requestid, tosend);
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2009-11-11 20:14:53 +00:00
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GByteArray *buf = g_byte_array_sized_new(tosend + padlen);
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g_byte_array_append(buf, data, tosend);
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append_padding_bytearray(buf, padlen);
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fastcgi_queue_append_bytearray(out, buf);
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2009-03-28 12:24:51 +00:00
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data += tosend;
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datalen -= tosend;
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}
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}
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/* kills string */
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2009-04-05 18:45:49 +00:00
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static void stream_send_string(fastcgi_queue *out, guint8 type, guint16 requestid, GString *data) {
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2009-03-28 12:24:51 +00:00
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if (data->len > G_MAXUINT16) {
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2009-11-11 20:14:53 +00:00
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stream_send_data(out, type, requestid, (const guint8*) GSTR_LEN(data));
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2009-03-28 12:24:51 +00:00
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g_string_free(data, TRUE);
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} else {
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guint8 padlen = stream_send_fcgi_record(out, type, requestid, data->len);
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2009-11-11 20:14:53 +00:00
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append_padding_str(data, padlen);
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2009-04-05 18:45:49 +00:00
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fastcgi_queue_append_string(out, data);
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2009-03-28 12:24:51 +00:00
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}
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}
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2009-11-11 20:14:53 +00:00
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/* kills bytearray */
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static void stream_send_bytearray(fastcgi_queue *out, guint8 type, guint16 requestid, GByteArray *data) {
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if (data->len > G_MAXUINT16) {
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stream_send_data(out, type, requestid, GBARR_LEN(data));
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g_byte_array_free(data, TRUE);
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} else {
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guint8 padlen = stream_send_fcgi_record(out, type, requestid, data->len);
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append_padding_bytearray(data, padlen);
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fastcgi_queue_append_bytearray(out, data);
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}
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}
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2009-04-05 18:45:49 +00:00
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static void stream_send_end_request(fastcgi_queue *out, guint16 requestID, gint32 appStatus, enum FCGI_ProtocolStatus status) {
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2009-11-11 20:14:53 +00:00
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GByteArray *record;
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record = g_byte_array_sized_new(16);
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2009-03-28 12:24:51 +00:00
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stream_build_fcgi_record(record, FCGI_END_REQUEST, requestID, 8);
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2009-11-11 20:14:53 +00:00
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/* alloc enough space */
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g_byte_array_set_size(record, 16);
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record->len = 8;
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2009-03-28 12:24:51 +00:00
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appStatus = htonl(appStatus);
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2009-11-11 20:14:53 +00:00
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g_byte_array_append(record, (const guchar*) &appStatus, sizeof(appStatus));
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record->data[record->len++] = status;
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g_byte_array_append(record, __padding, 3);
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fastcgi_queue_append_bytearray(out, record);
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2009-03-28 12:24:51 +00:00
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}
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static void write_queue(fastcgi_connection *fcon) {
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if (fcon->closing) return;
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2009-04-05 18:45:49 +00:00
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if (fastcgi_queue_write(fcon->fd, &fcon->write_queue, 256*1024) < 0) {
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fastcgi_connection_close(fcon);
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return;
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2009-03-28 12:24:51 +00:00
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}
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2009-04-05 18:45:49 +00:00
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if (fcon->fsrv->callbacks->cb_wrote_data) {
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fcon->fsrv->callbacks->cb_wrote_data(fcon);
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2009-03-28 12:24:51 +00:00
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}
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if (!fcon->closing) {
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if (fcon->write_queue.length > 0) {
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ev_io_add_events(fcon->fsrv->loop, &fcon->fd_watcher, EV_WRITE);
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} else {
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ev_io_rem_events(fcon->fsrv->loop, &fcon->fd_watcher, EV_WRITE);
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if (0 == fcon->requestID) {
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if (!(fcon->flags & FCGI_KEEP_CONN)) {
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fastcgi_connection_close(fcon);
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}
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}
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}
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}
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|
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}
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
static GByteArray* read_chunk(fastcgi_connection *fcon, guint maxlen) {
|
2009-03-28 12:24:51 +00:00
|
|
|
gssize res;
|
2009-11-11 20:14:53 +00:00
|
|
|
GByteArray *buf;
|
2009-03-28 12:24:51 +00:00
|
|
|
int tmp_errno;
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
buf = g_byte_array_sized_new(maxlen);
|
|
|
|
g_byte_array_set_size(buf, maxlen);
|
|
|
|
if (0 == maxlen) return buf;
|
2009-11-11 15:06:30 +00:00
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
res = read(fcon->fd, buf->data, maxlen);
|
2009-03-28 12:24:51 +00:00
|
|
|
if (res == -1) {
|
|
|
|
tmp_errno = errno;
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(buf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
errno = tmp_errno;
|
|
|
|
return NULL;
|
|
|
|
} else if (res == 0) {
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(buf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
errno = ECONNRESET;
|
|
|
|
return NULL;
|
|
|
|
} else {
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(buf, res);
|
|
|
|
return buf;
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
/* read content + padding, but only returns content data. decrements counters */
|
|
|
|
static GByteArray *read_content(fastcgi_connection *fcon) {
|
|
|
|
GByteArray *buf;
|
|
|
|
|
|
|
|
buf = read_chunk(fcon, fcon->content_remaining + fcon->padding_remaining);
|
|
|
|
if (!buf) return NULL;
|
|
|
|
if (buf->len > fcon->content_remaining) {
|
|
|
|
fcon->padding_remaining -= (buf->len - fcon->content_remaining);
|
2009-11-11 20:37:46 +00:00
|
|
|
g_byte_array_set_size(buf, fcon->content_remaining);
|
2009-11-11 20:14:53 +00:00
|
|
|
fcon->content_remaining = 0;
|
|
|
|
} else {
|
|
|
|
fcon->content_remaining -= buf->len;
|
|
|
|
}
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean read_append_chunk(fastcgi_connection *fcon, GByteArray *buf) {
|
2009-03-28 12:24:51 +00:00
|
|
|
gssize res;
|
|
|
|
int tmp_errno;
|
2009-11-11 20:14:53 +00:00
|
|
|
guint curlen = buf->len;
|
|
|
|
const guint maxlen = fcon->content_remaining + fcon->padding_remaining;
|
2009-03-28 12:24:51 +00:00
|
|
|
if (0 == maxlen) return TRUE;
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(buf, curlen + maxlen);
|
|
|
|
res = read(fcon->fd, buf->data + curlen, maxlen);
|
2009-03-28 12:24:51 +00:00
|
|
|
if (res == -1) {
|
|
|
|
tmp_errno = errno;
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(buf, curlen);
|
2009-03-28 12:24:51 +00:00
|
|
|
errno = tmp_errno;
|
|
|
|
return FALSE;
|
|
|
|
} else if (res == 0) {
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(buf, curlen);
|
2009-03-28 12:24:51 +00:00
|
|
|
errno = ECONNRESET;
|
|
|
|
return FALSE;
|
|
|
|
} else {
|
2009-11-11 20:14:53 +00:00
|
|
|
/* remove padding data */
|
|
|
|
if (res > fcon->content_remaining) {
|
|
|
|
fcon->padding_remaining -= res - fcon->content_remaining;
|
|
|
|
res = fcon->content_remaining;
|
|
|
|
}
|
|
|
|
g_byte_array_set_size(buf, curlen + res);
|
2009-03-28 12:24:51 +00:00
|
|
|
fcon->content_remaining -= res;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
static gboolean read_key_value(fastcgi_connection *fcon, GByteArray *buf, guint *pos, gchar **key, guint *keylen, gchar **value, guint *valuelen) {
|
|
|
|
const unsigned char *data = (const unsigned char*) buf->data;
|
2009-03-28 12:24:51 +00:00
|
|
|
guint32 klen, vlen;
|
|
|
|
guint p = *pos, len = buf->len;
|
|
|
|
|
|
|
|
if (len - p < 2) return FALSE;
|
|
|
|
|
|
|
|
klen = data[p++];
|
|
|
|
if (klen & 0x80) {
|
|
|
|
if (len - p < 100) return FALSE;
|
|
|
|
klen = ((klen & 0x7f) << 24) | (data[p] << 16) | (data[p+1] << 8) | data[p+2];
|
|
|
|
p += 3;
|
|
|
|
}
|
|
|
|
vlen = data[p++];
|
|
|
|
if (vlen & 0x80) {
|
|
|
|
if (len - p < 100) return FALSE;
|
|
|
|
vlen = ((vlen & 0x7f) << 24) | (data[p] << 16) | (data[p+1] << 8) | data[p+2];
|
|
|
|
p += 3;
|
|
|
|
}
|
|
|
|
if (klen > FASTCGI_MAX_KEYLEN || vlen > FASTCGI_MAX_VALUELEN) {
|
|
|
|
fastcgi_connection_close(fcon);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
if (len - p < klen + vlen) return FALSE;
|
2009-11-11 20:14:53 +00:00
|
|
|
*key = (gchar*) &buf->data[p];
|
2009-03-28 12:24:51 +00:00
|
|
|
*keylen = klen;
|
|
|
|
p += klen;
|
2009-11-11 20:14:53 +00:00
|
|
|
*value = (gchar*) &buf->data[p];
|
2009-03-28 12:24:51 +00:00
|
|
|
*valuelen = vlen;
|
|
|
|
p += vlen;
|
|
|
|
*pos = p;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void parse_params(const fastcgi_callbacks *fcbs, fastcgi_connection *fcon) {
|
|
|
|
if (!fcon->current_header.contentLength) {
|
|
|
|
fcbs->cb_new_request(fcon);
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(fcon->parambuf, 0);
|
2009-03-28 12:24:51 +00:00
|
|
|
} else {
|
|
|
|
guint pos = 0, keylen = 0, valuelen = 0;
|
|
|
|
gchar *key = NULL, *value = NULL;
|
|
|
|
while (read_key_value(fcon, fcon->parambuf, &pos, &key, &keylen, &value, &valuelen)) {
|
|
|
|
gchar *envvar = g_malloc(keylen + valuelen + 2);
|
|
|
|
memcpy(envvar, key, keylen);
|
|
|
|
envvar[keylen] = '=';
|
|
|
|
memcpy(envvar + keylen + 1, value, valuelen);
|
|
|
|
envvar[keylen+valuelen+1] = '\0';
|
|
|
|
g_ptr_array_add(fcon->environ, envvar);
|
|
|
|
}
|
|
|
|
if (!fcon->closing)
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_remove_range(fcon->parambuf, 0, pos);
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void parse_get_values(fastcgi_connection *fcon) {
|
|
|
|
/* just send the request back and don't insert results */
|
2009-11-11 20:14:53 +00:00
|
|
|
GByteArray *tmp = g_byte_array_sized_new(0);
|
|
|
|
stream_send_bytearray(&fcon->write_queue, FCGI_GET_VALUES_RESULT, 0, fcon->buffer);
|
2009-03-28 12:24:51 +00:00
|
|
|
*fcon->buffer = *tmp;
|
|
|
|
/* TODO: provide get-values result */
|
|
|
|
}
|
|
|
|
|
|
|
|
static void read_queue(fastcgi_connection *fcon) {
|
|
|
|
gssize res;
|
2009-11-11 20:14:53 +00:00
|
|
|
GByteArray *buf;
|
2009-03-28 12:24:51 +00:00
|
|
|
const fastcgi_callbacks *fcbs = fcon->fsrv->callbacks;
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
if (fcon->closing || fcon->read_suspended) return;
|
|
|
|
|
|
|
|
if (fcon->headerbuf_used < 8) {
|
|
|
|
const unsigned char *data = fcon->headerbuf;
|
|
|
|
res = read(fcon->fd, fcon->headerbuf + fcon->headerbuf_used, 8 - fcon->headerbuf_used);
|
|
|
|
if (0 == res) { errno = ECONNRESET; goto handle_error; }
|
|
|
|
if (-1 == res) goto handle_error;
|
|
|
|
fcon->headerbuf_used += res;
|
|
|
|
if (fcon->headerbuf_used < 8) return; /* need more data */
|
|
|
|
|
|
|
|
fcon->current_header.version = data[0];
|
|
|
|
fcon->current_header.type = data[1];
|
|
|
|
fcon->current_header.requestID = (data[2] << 8) | (data[3]);
|
|
|
|
fcon->current_header.contentLength = (data[4] << 8) | (data[5]);
|
|
|
|
fcon->current_header.paddingLength = data[6];
|
|
|
|
fcon->content_remaining = fcon->current_header.contentLength;
|
|
|
|
fcon->padding_remaining = fcon->current_header.paddingLength;
|
|
|
|
fcon->first = TRUE;
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(fcon->buffer, 0);
|
2009-03-28 12:24:51 +00:00
|
|
|
|
|
|
|
if (fcon->current_header.version != FCGI_VERSION_1) {
|
|
|
|
fastcgi_connection_close(fcon);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fcon->current_header.type != FCGI_BEGIN_REQUEST &&
|
|
|
|
(0 != fcon->current_header.requestID) && fcon->current_header.requestID != fcon->requestID) {
|
|
|
|
/* ignore packet data */
|
2009-11-11 20:14:53 +00:00
|
|
|
if (0 != fcon->content_remaining + fcon->padding_remaining) {
|
|
|
|
if (NULL == (buf = read_content(fcon))) goto handle_error;
|
|
|
|
g_byte_array_free(buf, TRUE);
|
|
|
|
}
|
2009-03-28 12:24:51 +00:00
|
|
|
if (0 == fcon->content_remaining + fcon->padding_remaining) {
|
|
|
|
fcon->headerbuf_used = 0;
|
|
|
|
}
|
2009-11-11 15:06:30 +00:00
|
|
|
continue;
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (fcon->first || fcon->content_remaining) {
|
|
|
|
fcon->first = FALSE;
|
|
|
|
switch (fcon->current_header.type) {
|
|
|
|
case FCGI_BEGIN_REQUEST:
|
|
|
|
if (8 != fcon->current_header.contentLength || 0 == fcon->current_header.requestID) goto error;
|
|
|
|
if (!read_append_chunk(fcon, fcon->buffer)) goto handle_error;
|
|
|
|
if (0 == fcon->content_remaining) {
|
|
|
|
if (fcon->requestID) {
|
|
|
|
stream_send_end_request(&fcon->write_queue, fcon->current_header.requestID, 0, FCGI_CANT_MPX_CONN);
|
|
|
|
} else {
|
2009-11-11 20:14:53 +00:00
|
|
|
unsigned char *data = (unsigned char*) fcon->buffer->data;
|
2009-03-28 12:24:51 +00:00
|
|
|
fcon->requestID = fcon->current_header.requestID;
|
|
|
|
fcon->role = (data[0] << 8) | (data[1]);
|
|
|
|
fcon->flags = data[2];
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(fcon->parambuf, 0);
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FCGI_ABORT_REQUEST:
|
|
|
|
if (0 != fcon->current_header.contentLength || 0 == fcon->current_header.requestID) goto error;
|
|
|
|
fcbs->cb_request_aborted(fcon);
|
|
|
|
break;
|
|
|
|
case FCGI_END_REQUEST:
|
|
|
|
goto error; /* invalid type */
|
|
|
|
case FCGI_PARAMS:
|
|
|
|
if (0 == fcon->current_header.requestID) goto error;
|
|
|
|
if (!read_append_chunk(fcon, fcon->parambuf)) goto handle_error;
|
|
|
|
parse_params(fcbs, fcon);
|
|
|
|
break;
|
|
|
|
case FCGI_STDIN:
|
|
|
|
if (0 == fcon->current_header.requestID) goto error;
|
|
|
|
buf = NULL;
|
|
|
|
if (0 != fcon->content_remaining &&
|
2009-11-11 20:14:53 +00:00
|
|
|
NULL == (buf = read_content(fcon))) goto handle_error;
|
2009-03-28 12:24:51 +00:00
|
|
|
if (fcbs->cb_received_stdin) {
|
|
|
|
fcbs->cb_received_stdin(fcon, buf);
|
|
|
|
} else {
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(buf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FCGI_STDOUT:
|
|
|
|
goto error; /* invalid type */
|
|
|
|
case FCGI_STDERR:
|
|
|
|
goto error; /* invalid type */
|
|
|
|
case FCGI_DATA:
|
|
|
|
if (0 == fcon->current_header.requestID) goto error;
|
|
|
|
buf = NULL;
|
|
|
|
if (0 != fcon->content_remaining &&
|
2009-11-11 20:14:53 +00:00
|
|
|
NULL == (buf = read_content(fcon))) goto handle_error;
|
2009-03-28 12:24:51 +00:00
|
|
|
if (fcbs->cb_received_data) {
|
|
|
|
fcbs->cb_received_data(fcon, buf);
|
|
|
|
} else {
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(buf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FCGI_GET_VALUES:
|
|
|
|
if (0 != fcon->current_header.requestID) goto error;
|
|
|
|
if (!read_append_chunk(fcon, fcon->buffer)) goto handle_error;
|
|
|
|
if (0 == fcon->content_remaining)
|
|
|
|
parse_get_values(fcon);
|
|
|
|
break;
|
|
|
|
case FCGI_GET_VALUES_RESULT:
|
|
|
|
goto error; /* invalid type */
|
|
|
|
break;
|
|
|
|
case FCGI_UNKNOWN_TYPE:
|
|
|
|
/* we didn't send anything fancy, so this is not expected */
|
|
|
|
goto error; /* invalid type */
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (0 == fcon->content_remaining) {
|
|
|
|
if (0 == fcon->padding_remaining) {
|
|
|
|
fcon->headerbuf_used = 0;
|
|
|
|
} else {
|
2009-11-11 15:06:30 +00:00
|
|
|
if (NULL == (buf = read_chunk(fcon, fcon->padding_remaining))) goto handle_error;
|
2009-03-28 12:24:51 +00:00
|
|
|
fcon->padding_remaining -= buf->len;
|
|
|
|
if (0 == fcon->padding_remaining) {
|
|
|
|
fcon->headerbuf_used = 0;
|
|
|
|
}
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(buf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
handle_error:
|
|
|
|
switch (errno) {
|
|
|
|
case EINTR:
|
|
|
|
case EAGAIN:
|
|
|
|
#if EWOULDBLOCK != EAGAIN
|
|
|
|
case EWOULDBLOCK:
|
|
|
|
#endif
|
|
|
|
return; /* try again later */
|
|
|
|
case ECONNRESET:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ERROR("read from fd=%d failed, %s\n", fcon->fd, g_strerror(errno) );
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
error:
|
|
|
|
if (0 != fcon->requestID)
|
|
|
|
fcbs->cb_request_aborted(fcon);
|
|
|
|
fastcgi_connection_close(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void fastcgi_connection_fd_cb(struct ev_loop *loop, ev_io *w, int revents) {
|
|
|
|
fastcgi_connection *fcon = (fastcgi_connection*) w->data;
|
|
|
|
UNUSED(loop);
|
|
|
|
|
|
|
|
if (revents & EV_READ) {
|
|
|
|
read_queue(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (revents & EV_WRITE) {
|
|
|
|
write_queue(fcon);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static fastcgi_connection *fastcgi_connecion_create(fastcgi_server *fsrv, gint fd, guint id) {
|
|
|
|
fastcgi_connection *fcon = g_slice_new0(fastcgi_connection);
|
|
|
|
|
|
|
|
fcon->fsrv = fsrv;
|
|
|
|
fcon->fcon_id = id;
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
fcon->buffer = g_byte_array_sized_new(0);
|
|
|
|
fcon->parambuf = g_byte_array_sized_new(0);
|
2009-03-28 12:24:51 +00:00
|
|
|
fcon->environ = g_ptr_array_new();
|
|
|
|
|
|
|
|
fcon->fd = fd;
|
|
|
|
fd_init(fcon->fd);
|
|
|
|
ev_io_init(&fcon->fd_watcher, fastcgi_connection_fd_cb, fcon->fd, EV_READ);
|
|
|
|
fcon->fd_watcher.data = fcon;
|
|
|
|
ev_io_start(fcon->fsrv->loop, &fcon->fd_watcher);
|
|
|
|
|
|
|
|
return fcon;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void fastcgi_connection_free(fastcgi_connection *fcon) {
|
|
|
|
fcon->fsrv->callbacks->cb_reset_connection(fcon);
|
|
|
|
|
|
|
|
if (fcon->fd != -1) {
|
|
|
|
ev_io_stop(fcon->fsrv->loop, &fcon->fd_watcher);
|
|
|
|
close(fcon->fd);
|
|
|
|
fcon->fd = -1;
|
|
|
|
}
|
|
|
|
|
2009-04-05 18:45:49 +00:00
|
|
|
fastcgi_queue_clear(&fcon->write_queue);
|
2009-03-28 12:24:51 +00:00
|
|
|
fastcgi_connection_environ_clear(fcon);
|
|
|
|
g_ptr_array_free(fcon->environ, TRUE);
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_free(fcon->buffer, TRUE);
|
|
|
|
g_byte_array_free(fcon->parambuf, TRUE);
|
2009-03-28 12:24:51 +00:00
|
|
|
|
|
|
|
g_slice_free(fastcgi_connection, fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_connection_close(fastcgi_connection *fcon) {
|
|
|
|
fcon->closing = TRUE;
|
|
|
|
if (fcon->fd != -1) {
|
|
|
|
ev_io_stop(fcon->fsrv->loop, &fcon->fd_watcher);
|
|
|
|
close(fcon->fd);
|
|
|
|
fcon->fd = -1;
|
|
|
|
}
|
|
|
|
|
2009-04-05 18:45:49 +00:00
|
|
|
fastcgi_queue_clear(&fcon->write_queue);
|
2009-03-28 12:24:51 +00:00
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
g_byte_array_set_size(fcon->buffer, 0);
|
|
|
|
g_byte_array_set_size(fcon->parambuf, 0);
|
2009-03-28 12:24:51 +00:00
|
|
|
fastcgi_connection_environ_clear(fcon);
|
|
|
|
|
|
|
|
ev_prepare_start(fcon->fsrv->loop, &fcon->fsrv->closing_watcher);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void fastcgi_server_fd_cb(struct ev_loop *loop, ev_io *w, int revents) {
|
|
|
|
fastcgi_server *fsrv = (fastcgi_server*) w->data;
|
|
|
|
fastcgi_connection *fcon;
|
|
|
|
void (*cb_new_connection)(fastcgi_connection *fcon) = fsrv->callbacks->cb_new_connection;
|
|
|
|
|
|
|
|
g_assert(revents & EV_READ);
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
gint fd = accept(fsrv->fd, NULL, NULL);
|
|
|
|
if (-1 == fd) {
|
|
|
|
switch (errno) {
|
|
|
|
case EAGAIN:
|
|
|
|
#if EWOULDBLOCK != EAGAIN
|
|
|
|
case EWOULDBLOCK:
|
|
|
|
#endif
|
|
|
|
case EINTR:
|
|
|
|
/* we were stopped _before_ we had a connection */
|
|
|
|
case ECONNABORTED: /* this is a FreeBSD thingy */
|
|
|
|
/* we were stopped _after_ we had a connection */
|
|
|
|
return;
|
|
|
|
case EMFILE:
|
2010-05-07 20:31:29 +00:00
|
|
|
fsrv->max_connections = fsrv->connections->len / 2;
|
|
|
|
if (fsrv->max_connections < 1) fsrv->max_connections = 1;
|
2009-03-28 12:24:51 +00:00
|
|
|
ERROR("dropped connection limit to %u as we got EMFILE\n", fsrv->max_connections);
|
|
|
|
ev_io_rem_events(loop, w, EV_READ);
|
|
|
|
return;
|
|
|
|
default:
|
|
|
|
ERROR("accept failed on fd=%d with error: %s\nshutting down\n", fsrv->fd, g_strerror(errno));
|
|
|
|
fastcgi_server_stop(fsrv);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fcon = fastcgi_connecion_create(fsrv, fd, fsrv->connections->len);
|
|
|
|
g_ptr_array_add(fsrv->connections, fcon);
|
|
|
|
if (cb_new_connection) {
|
|
|
|
cb_new_connection(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fsrv->connections->len >= fsrv->max_connections) {
|
|
|
|
ev_io_rem_events(loop, w, EV_READ);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fsrv->do_shutdown) return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void fastcgi_cleanup_connections(fastcgi_server *fsrv) {
|
|
|
|
guint i;
|
2010-05-07 20:31:29 +00:00
|
|
|
gboolean closed_con;
|
2009-03-28 12:24:51 +00:00
|
|
|
|
|
|
|
for (i = 0; i < fsrv->connections->len; ) {
|
|
|
|
fastcgi_connection *fcon = g_ptr_array_index(fsrv->connections, i);
|
|
|
|
if (fcon->closing) {
|
|
|
|
fastcgi_connection *t_fcon;
|
|
|
|
guint l = fsrv->connections->len-1;
|
|
|
|
t_fcon = g_ptr_array_index(fsrv->connections, i) = g_ptr_array_index(fsrv->connections, l);
|
|
|
|
g_ptr_array_set_size(fsrv->connections, l);
|
|
|
|
t_fcon->fcon_id = i;
|
|
|
|
fastcgi_connection_free(fcon);
|
2010-05-07 20:31:29 +00:00
|
|
|
closed_con = TRUE;
|
2009-03-28 12:24:51 +00:00
|
|
|
} else {
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
}
|
2010-05-07 20:31:29 +00:00
|
|
|
|
|
|
|
if (closed_con && fsrv->connections->len < fsrv->max_connections) {
|
|
|
|
ev_io_add_events(fsrv->loop, &fsrv->fd_watcher, EV_READ);
|
|
|
|
}
|
2009-03-28 12:24:51 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void fastcgi_closing_cb(struct ev_loop *loop, ev_prepare *w, int revents) {
|
|
|
|
UNUSED(revents);
|
|
|
|
ev_prepare_stop(loop, w);
|
|
|
|
fastcgi_cleanup_connections((fastcgi_server*) w->data);
|
|
|
|
}
|
|
|
|
|
|
|
|
fastcgi_server *fastcgi_server_create(struct ev_loop *loop, gint socketfd, const fastcgi_callbacks *callbacks, guint max_connections) {
|
|
|
|
fastcgi_server *fsrv = g_slice_new0(fastcgi_server);
|
|
|
|
|
|
|
|
fsrv->callbacks = callbacks;
|
|
|
|
|
|
|
|
fsrv->max_connections = max_connections;
|
|
|
|
|
|
|
|
fsrv->connections = g_ptr_array_sized_new(fsrv->max_connections);
|
|
|
|
|
|
|
|
fsrv->loop = loop;
|
|
|
|
fsrv->fd = socketfd;
|
|
|
|
fd_init(fsrv->fd);
|
|
|
|
ev_io_init(&fsrv->fd_watcher, fastcgi_server_fd_cb, fsrv->fd, EV_READ);
|
|
|
|
fsrv->fd_watcher.data = fsrv;
|
|
|
|
ev_io_start(fsrv->loop, &fsrv->fd_watcher);
|
|
|
|
|
|
|
|
ev_prepare_init(&fsrv->closing_watcher, fastcgi_closing_cb);
|
|
|
|
fsrv->closing_watcher.data = fsrv;
|
|
|
|
|
|
|
|
return fsrv;
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_server_stop(fastcgi_server *fsrv) {
|
|
|
|
if (fsrv->do_shutdown) return;
|
|
|
|
fsrv->do_shutdown = TRUE;
|
|
|
|
|
|
|
|
ev_io_stop(fsrv->loop, &fsrv->fd_watcher);
|
|
|
|
close(fsrv->fd);
|
|
|
|
fsrv->fd = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_server_free(fastcgi_server *fsrv) {
|
|
|
|
guint i;
|
|
|
|
void (*cb_request_aborted)(fastcgi_connection *fcon) = fsrv->callbacks->cb_request_aborted;
|
|
|
|
if (!fsrv->do_shutdown) fastcgi_server_stop(fsrv);
|
|
|
|
ev_prepare_stop(fsrv->loop, &fsrv->closing_watcher);
|
|
|
|
|
|
|
|
for (i = 0; i < fsrv->connections->len; i++) {
|
|
|
|
fastcgi_connection *fcon = g_ptr_array_index(fsrv->connections, i);
|
|
|
|
cb_request_aborted(fcon);
|
|
|
|
fcon->closing = TRUE;
|
|
|
|
}
|
|
|
|
fastcgi_cleanup_connections(fsrv);
|
|
|
|
g_ptr_array_free(fsrv->connections, TRUE);
|
|
|
|
|
|
|
|
g_slice_free(fastcgi_server, fsrv);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_end_request(fastcgi_connection *fcon, gint32 appStatus, enum FCGI_ProtocolStatus status) {
|
|
|
|
gboolean had_data = (fcon->write_queue.length > 0);
|
|
|
|
|
|
|
|
if (0 == fcon->requestID) return;
|
|
|
|
stream_send_end_request(&fcon->write_queue, fcon->requestID, appStatus, status);
|
|
|
|
fcon->requestID = 0;
|
|
|
|
if (!had_data) write_queue(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_suspend_read(fastcgi_connection *fcon) {
|
|
|
|
fcon->read_suspended = TRUE;
|
|
|
|
ev_io_rem_events(fcon->fsrv->loop, &fcon->fd_watcher, EV_READ);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_resume_read(fastcgi_connection *fcon) {
|
|
|
|
fcon->read_suspended = FALSE;
|
|
|
|
ev_io_add_events(fcon->fsrv->loop, &fcon->fd_watcher, EV_READ);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_send_out(fastcgi_connection *fcon, GString *data) {
|
|
|
|
gboolean had_data = (fcon->write_queue.length > 0);
|
|
|
|
if (!data) {
|
|
|
|
stream_send_fcgi_record(&fcon->write_queue, FCGI_STDOUT, fcon->requestID, 0);
|
|
|
|
} else {
|
|
|
|
stream_send_string(&fcon->write_queue, FCGI_STDOUT, fcon->requestID, data);
|
|
|
|
}
|
|
|
|
if (!had_data) write_queue(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_send_err(fastcgi_connection *fcon, GString *data) {
|
|
|
|
gboolean had_data = (fcon->write_queue.length > 0);
|
|
|
|
if (!data) {
|
|
|
|
stream_send_fcgi_record(&fcon->write_queue, FCGI_STDERR, fcon->requestID, 0);
|
|
|
|
} else {
|
|
|
|
stream_send_string(&fcon->write_queue, FCGI_STDERR, fcon->requestID, data);
|
|
|
|
}
|
|
|
|
if (!had_data) write_queue(fcon);
|
|
|
|
}
|
|
|
|
|
2009-11-11 20:14:53 +00:00
|
|
|
void fastcgi_send_out_bytearray(fastcgi_connection *fcon, GByteArray *data) {
|
|
|
|
gboolean had_data = (fcon->write_queue.length > 0);
|
|
|
|
if (!data) {
|
|
|
|
stream_send_fcgi_record(&fcon->write_queue, FCGI_STDOUT, fcon->requestID, 0);
|
|
|
|
} else {
|
|
|
|
stream_send_bytearray(&fcon->write_queue, FCGI_STDOUT, fcon->requestID, data);
|
|
|
|
}
|
|
|
|
if (!had_data) write_queue(fcon);
|
|
|
|
}
|
|
|
|
|
|
|
|
void fastcgi_send_err_bytearray(fastcgi_connection *fcon, GByteArray *data) {
|
|
|
|
gboolean had_data = (fcon->write_queue.length > 0);
|
|
|
|
if (!data) {
|
|
|
|
stream_send_fcgi_record(&fcon->write_queue, FCGI_STDERR, fcon->requestID, 0);
|
|
|
|
} else {
|
|
|
|
stream_send_bytearray(&fcon->write_queue, FCGI_STDERR, fcon->requestID, data);
|
|
|
|
}
|
|
|
|
if (!had_data) write_queue(fcon);
|
|
|
|
}
|
|
|
|
|
2009-03-28 12:24:51 +00:00
|
|
|
void fastcgi_connection_environ_clear(fastcgi_connection *fcon) {
|
|
|
|
guint i;
|
|
|
|
for (i = 0; i < fcon->environ->len; i++) {
|
|
|
|
gchar *s = (gchar*) g_ptr_array_index(fcon->environ, i);
|
|
|
|
if (s) g_free(s);
|
|
|
|
}
|
|
|
|
g_ptr_array_set_size(fcon->environ, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
const gchar* fastcgi_connection_environ_lookup(fastcgi_connection *fcon, const gchar* key, gsize keylen) {
|
|
|
|
guint i;
|
|
|
|
for (i = 0; i < fcon->environ->len; i++) {
|
|
|
|
gchar *s = (gchar*) g_ptr_array_index(fcon->environ, i);
|
|
|
|
if (s && 0 == strncmp(s, key, keylen) && s[keylen] == '=') {
|
|
|
|
return &s[keylen+1];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|