mirror of
https://github.com/clearlinux/uwsgi.git
synced 2026-08-28 17:55:39 +00:00
roberto@sirius
501 lines
13 KiB
C
501 lines
13 KiB
C
#include "uwsgi.h"
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extern struct uwsgi_server uwsgi;
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static size_t get_content_length(char *buf, uint16_t size) {
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int i;
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size_t val = 0 ;
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for(i=0;i<size;i++) {
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if (buf[i] >= '0' && buf[i] <= '9') {
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val = (val*10) + (buf[i] - '0') ;
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continue;
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}
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break;
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}
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return val;
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}
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#ifdef UWSGI_UDP
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ssize_t send_udp_message(uint8_t modifier1, char *host, char *message, uint16_t message_size) {
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int fd ;
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struct sockaddr_in udp_addr;
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char *udp_port ;
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ssize_t ret;
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char udpbuff[1024];
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if (message_size + 4 > 1024)
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return -1;
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udp_port = strchr(host, ':');
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if (udp_port == NULL) {
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return -1 ;
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}
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udp_port[0] = 0 ;
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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if (fd < 0) {
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uwsgi_error("socket()");
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return -1 ;
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}
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memset(&udp_addr, 0, sizeof(struct sockaddr_in));
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udp_addr.sin_family = AF_INET;
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udp_addr.sin_port = htons(atoi(udp_port));
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udp_addr.sin_addr.s_addr = inet_addr(host);
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udpbuff[0] = modifier1 ;
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#ifdef __BIG_ENDIAN__
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message_size = uwsgi_swap16(message_size);
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#endif
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memcpy(udpbuff+1, &message_size, 2);
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udpbuff[3] = 0 ;
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#ifdef __BIG_ENDIAN__
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message_size = uwsgi_swap16(message_size);
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#endif
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memcpy(udpbuff+4, message, message_size);
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ret = sendto(fd, udpbuff, message_size+4, 0, (struct sockaddr *) &udp_addr, sizeof(udp_addr));
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if (ret < 0) {
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uwsgi_error("sendto()");
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}
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close(fd);
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return ret;
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}
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#endif
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int uwsgi_enqueue_message(char *host, int port, uint8_t modifier1, uint8_t modifier2, char *message, int size, int timeout) {
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struct pollfd uwsgi_poll;
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struct sockaddr_in uws_addr;
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int cnt;
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struct uwsgi_header uh;
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if (!timeout)
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timeout = 1;
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if (size > 0xFFFF) {
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uwsgi_log( "invalid object (marshalled) size\n");
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return -1;
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}
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uwsgi_poll.fd = socket(AF_INET, SOCK_STREAM, 0);
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if (uwsgi_poll.fd < 0) {
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uwsgi_error("socket()");
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return -1;
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}
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memset(&uws_addr, 0, sizeof(struct sockaddr_in));
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uws_addr.sin_family = AF_INET;
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uws_addr.sin_port = htons(port);
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uws_addr.sin_addr.s_addr = inet_addr(host);
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uwsgi_poll.events = POLLIN;
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if (timed_connect(&uwsgi_poll, (const struct sockaddr *) &uws_addr, sizeof(struct sockaddr_in), timeout)) {
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uwsgi_error("connect()");
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close(uwsgi_poll.fd);
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return -1;
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}
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uh.modifier1 = modifier1;
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uh.pktsize = (uint16_t) size;
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uh.modifier2 = modifier2;
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cnt = write(uwsgi_poll.fd, &uh, 4);
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if (cnt != 4) {
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uwsgi_error("write()");
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close(uwsgi_poll.fd);
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return -1;
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}
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cnt = write(uwsgi_poll.fd, message, size);
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if (cnt != size) {
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uwsgi_error("write()");
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close(uwsgi_poll.fd);
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return -1;
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}
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return uwsgi_poll.fd;
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}
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PyObject *uwsgi_send_message(const char *host, int port, uint8_t modifier1, uint8_t modifier2, char *message, int size, int timeout) {
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struct pollfd uwsgi_mpoll;
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struct sockaddr_in uws_addr;
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int cnt;
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struct uwsgi_header uh;
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char buffer[0xFFFF];
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if (!timeout)
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timeout = 1;
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if (size > 0xFFFF) {
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uwsgi_log( "invalid object (marshalled) size\n");
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Py_INCREF(Py_None);
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return Py_None;
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}
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uwsgi_mpoll.events = POLLIN;
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uwsgi_mpoll.fd = socket(AF_INET, SOCK_STREAM, 0);
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if (uwsgi_mpoll.fd < 0) {
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uwsgi_error("socket()");
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Py_INCREF(Py_None);
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return Py_None;
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}
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memset(&uws_addr, 0, sizeof(struct sockaddr_in));
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uws_addr.sin_family = AF_INET;
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uws_addr.sin_port = htons(port);
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uws_addr.sin_addr.s_addr = inet_addr(host);
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UWSGI_SET_BLOCKING;
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if (timed_connect(&uwsgi_mpoll, (const struct sockaddr *) &uws_addr, sizeof(struct sockaddr_in), timeout)) {
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uwsgi_error("connect()");
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close(uwsgi_mpoll.fd);
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Py_INCREF(Py_None);
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return Py_None;
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}
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uh.modifier1 = modifier1;
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uh.pktsize = (uint16_t) size;
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uh.modifier2 = modifier2;
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cnt = write(uwsgi_mpoll.fd, &uh, 4);
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if (cnt != 4) {
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uwsgi_error("write()");
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close(uwsgi_mpoll.fd);
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Py_INCREF(Py_None);
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return Py_None;
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}
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cnt = write(uwsgi_mpoll.fd, message, size);
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if (cnt != size) {
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uwsgi_error("write()");
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close(uwsgi_mpoll.fd);
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Py_INCREF(Py_None);
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return Py_None;
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}
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if (!uwsgi_parse_response(&uwsgi_mpoll, timeout, &uh, buffer)) {
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UWSGI_UNSET_BLOCKING;
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Py_INCREF(Py_None);
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return Py_None;
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}
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UWSGI_UNSET_BLOCKING;
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close(uwsgi_mpoll.fd);
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if (uh.modifier1 == UWSGI_MODIFIER_RESPONSE) {
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if (!uh.modifier2) {
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Py_INCREF(Py_None);
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return Py_None;
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}
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else {
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Py_INCREF(Py_True);
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return Py_True;
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}
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}
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return PyMarshal_ReadObjectFromString(buffer, uh.pktsize);
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}
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int uwsgi_parse_response(struct pollfd *upoll, int timeout, struct uwsgi_header *uh, char *buffer) {
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int rlen, i;
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if (!timeout)
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timeout = 1;
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/* first 4 byte header */
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rlen = poll(upoll, 1, timeout * 1000);
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if (rlen < 0) {
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uwsgi_error("poll()");
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exit(1);
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}
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else if (rlen == 0) {
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uwsgi_log( "timeout. skip request\n");
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close(upoll->fd);
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return 0;
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}
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rlen = read(upoll->fd, uh, 4);
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if (rlen > 0 && rlen < 4) {
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i = rlen;
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while (i < 4) {
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rlen = poll(upoll, 1, timeout * 1000);
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if (rlen < 0) {
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uwsgi_error("poll()");
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exit(1);
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}
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else if (rlen == 0) {
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uwsgi_log( "timeout waiting for header. skip request.\n");
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close(upoll->fd);
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break;
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}
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rlen = read(upoll->fd, (char *) (uh) + i, 4 - i);
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if (rlen <= 0) {
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uwsgi_log( "broken header. skip request.\n");
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close(upoll->fd);
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break;
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}
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i += rlen;
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}
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if (i < 4) {
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return 0;
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}
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}
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else if (rlen <= 0) {
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uwsgi_log( "invalid request header size: %d...skip\n", rlen);
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close(upoll->fd);
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return 0;
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}
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/* big endian ? */
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#ifdef __BIG_ENDIAN__
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uh->pktsize = uwsgi_swap16(uh->pktsize);
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#endif
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#ifdef UWSGI_DEBUG
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uwsgi_debug("uwsgi payload size: %d (0x%X) modifier1: %d modifier2: %d\n", uh->pktsize, uh->pktsize, uh->modifier1, uh->modifier2);
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#endif
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/* check for max buffer size */
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if (uh->pktsize > uwsgi.buffer_size) {
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uwsgi_log( "invalid request block size: %d...skip\n", uh->pktsize);
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close(upoll->fd);
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return 0;
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}
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//uwsgi_log("ready for reading %d bytes\n", wsgi_req.size);
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i = 0;
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while (i < uh->pktsize) {
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rlen = poll(upoll, 1, timeout * 1000);
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if (rlen < 0) {
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uwsgi_error("poll()");
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exit(1);
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}
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else if (rlen == 0) {
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uwsgi_log( "timeout. skip request. (expecting %d bytes, got %d)\n", uh->pktsize, i);
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close(upoll->fd);
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break;
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}
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rlen = read(upoll->fd, buffer + i, uh->pktsize - i);
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if (rlen <= 0) {
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uwsgi_log( "broken vars. skip request.\n");
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close(upoll->fd);
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break;
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}
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i += rlen;
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}
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if (i < uh->pktsize) {
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return 0;
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}
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return 1;
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}
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int uwsgi_parse_vars(struct uwsgi_server *uwsgi, struct wsgi_request *wsgi_req) {
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char *buffer = wsgi_req->buffer;
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char *ptrbuf, *bufferend;
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uint16_t strsize = 0;
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ptrbuf = buffer;
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bufferend = ptrbuf + wsgi_req->uh.pktsize;
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/* set an HTTP 500 status as default */
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wsgi_req->status = 500;
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while (ptrbuf < bufferend) {
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if (ptrbuf + 2 < bufferend) {
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memcpy(&strsize, ptrbuf, 2);
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#ifdef __BIG_ENDIAN__
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strsize = uwsgi_swap16(strsize);
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#endif
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/* key cannot be null */
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if (!strsize) {
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uwsgi_log( "uwsgi key cannot be null. skip this request.\n");
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return -1;
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}
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ptrbuf += 2;
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if (ptrbuf + strsize < bufferend) {
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// var key
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wsgi_req->hvec[wsgi_req->var_cnt].iov_base = ptrbuf;
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wsgi_req->hvec[wsgi_req->var_cnt].iov_len = strsize;
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ptrbuf += strsize;
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// value can be null (even at the end) so use <=
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if (ptrbuf + 2 <= bufferend) {
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memcpy(&strsize, ptrbuf, 2);
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#ifdef __BIG_ENDIAN__
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strsize = uwsgi_swap16(strsize);
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#endif
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ptrbuf += 2;
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if (ptrbuf + strsize <= bufferend) {
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//uwsgi_log("uwsgi %.*s = %.*s\n", wsgi_req->hvec[wsgi_req->var_cnt].iov_len, wsgi_req->hvec[wsgi_req->var_cnt].iov_base, strsize, ptrbuf);
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if (!strncmp("SCRIPT_NAME", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->script_name = ptrbuf;
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wsgi_req->script_name_len = strsize;
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#ifdef UWSGI_DEBUG
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uwsgi_debug("SCRIPT_NAME=%.*s\n", wsgi_req->script_name_len, wsgi_req->script_name);
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#endif
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}
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else if (!strncmp("PATH_INFO", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->path_info = ptrbuf;
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wsgi_req->path_info_len = strsize;
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#ifdef UWSGI_DEBUG
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uwsgi_debug("PATH_INFO=%.*s\n", wsgi_req->path_info_len, wsgi_req->path_info);
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#endif
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}
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else if (!strncmp("SERVER_PROTOCOL", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->protocol = ptrbuf;
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wsgi_req->protocol_len = strsize;
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}
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else if (!strncmp("REQUEST_URI", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->uri = ptrbuf;
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wsgi_req->uri_len = strsize;
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}
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else if (!strncmp("QUERY_STRING", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->query_string = ptrbuf;
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wsgi_req->query_string_len = strsize;
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}
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else if (!strncmp("REQUEST_METHOD", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->method = ptrbuf;
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wsgi_req->method_len = strsize;
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}
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else if (!strncmp("REMOTE_ADDR", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->remote_addr = ptrbuf;
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wsgi_req->remote_addr_len = strsize;
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}
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else if (!strncmp("REMOTE_USER", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->remote_user = ptrbuf;
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wsgi_req->remote_user_len = strsize;
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}
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else if (!strncmp("UWSGI_SCHEME", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->scheme = ptrbuf;
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wsgi_req->scheme_len = strsize;
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}
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else if (!strncmp("UWSGI_SCRIPT",wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len )) {
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wsgi_req->wsgi_script = ptrbuf;
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wsgi_req->wsgi_script_len = strsize;
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}
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else if (!strncmp("UWSGI_MODULE", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->wsgi_module = ptrbuf;
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wsgi_req->wsgi_module_len = strsize;
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}
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else if (!strncmp("UWSGI_CALLABLE", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->wsgi_callable = ptrbuf;
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wsgi_req->wsgi_callable_len = strsize;
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}
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else if (!strncmp("UWSGI_PYHOME", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->pyhome = ptrbuf;
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wsgi_req->pyhome_len = strsize;
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}
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else if (!strncmp("SERVER_NAME", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->host = ptrbuf;
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wsgi_req->host_len = strsize;
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}
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else if (!strncmp("HTTPS", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->https = ptrbuf;
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wsgi_req->https_len = strsize;
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}
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else if (!strncmp("CONTENT_LENGTH", wsgi_req->hvec[wsgi_req->var_cnt].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len)) {
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wsgi_req->post_cl = get_content_length(ptrbuf, strsize);
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}
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if (wsgi_req->var_cnt < uwsgi->vec_size - (4 + 1)) {
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wsgi_req->var_cnt++;
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}
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else {
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uwsgi_log( "max vec size reached. skip this header.\n");
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return -1;
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}
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// var value
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wsgi_req->hvec[wsgi_req->var_cnt].iov_base = ptrbuf;
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wsgi_req->hvec[wsgi_req->var_cnt].iov_len = strsize;
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//uwsgi_log("%.*s = %.*s\n", wsgi_req->hvec[wsgi_req->var_cnt-1].iov_len, wsgi_req->hvec[wsgi_req->var_cnt-1].iov_base, wsgi_req->hvec[wsgi_req->var_cnt].iov_len, wsgi_req->hvec[wsgi_req->var_cnt].iov_base);
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if (wsgi_req->var_cnt < uwsgi->vec_size - (4 + 1)) {
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wsgi_req->var_cnt++;
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}
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else {
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uwsgi_log( "max vec size reached. skip this header.\n");
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return -1;
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}
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ptrbuf += strsize;
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}
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else {
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return -1;
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}
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}
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else {
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return -1;
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}
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}
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}
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else {
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return -1;
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}
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}
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return 0;
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}
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int uwsgi_ping_node(int node, struct wsgi_request *wsgi_req) {
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struct pollfd uwsgi_poll;
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struct uwsgi_cluster_node *ucn = &uwsgi.shared->nodes[node];
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|
|
if (ucn->name[0] == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (ucn->status == UWSGI_NODE_OK) {
|
|
return 0;
|
|
}
|
|
|
|
uwsgi_poll.fd = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (uwsgi_poll.fd < 0) {
|
|
uwsgi_error("socket()");
|
|
return -1;
|
|
}
|
|
|
|
if (timed_connect(&uwsgi_poll, (const struct sockaddr *) &ucn->ucn_addr, sizeof(struct sockaddr_in), uwsgi.shared->options[UWSGI_OPTION_SOCKET_TIMEOUT])) {
|
|
close(uwsgi_poll.fd);
|
|
return -1;
|
|
}
|
|
|
|
wsgi_req->uh.modifier1 = UWSGI_MODIFIER_PING;
|
|
wsgi_req->uh.pktsize = 0;
|
|
wsgi_req->uh.modifier2 = 0;
|
|
if (write(uwsgi_poll.fd, wsgi_req, 4) != 4) {
|
|
uwsgi_error("write()");
|
|
return -1;
|
|
}
|
|
|
|
uwsgi_poll.events = POLLIN;
|
|
if (!uwsgi_parse_response(&uwsgi_poll, uwsgi.shared->options[UWSGI_OPTION_SOCKET_TIMEOUT], (struct uwsgi_header *) wsgi_req, wsgi_req->buffer)) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|