mirror of
https://github.com/clearlinux/uwsgi.git
synced 2026-05-14 10:43:51 +00:00
346 lines
9.7 KiB
C
346 lines
9.7 KiB
C
#include "uwsgi_python.h"
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extern struct uwsgi_server uwsgi;
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extern struct uwsgi_python up;
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static char *nl = "\r\n";
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static char *h_sep = ": ";
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static const char *http_protocol = "HTTP/1.1";
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// check here
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PyObject *py_uwsgi_spit(PyObject * self, PyObject * args) {
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PyObject *headers, *head;
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PyObject *h_key, *h_value;
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int i, j;
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PyObject *exc_info = NULL;
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struct wsgi_request *wsgi_req = current_wsgi_req();
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int base = 0;
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// avoid double sending of headers
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if (wsgi_req->headers_sent) {
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return PyErr_Format(PyExc_IOError, "headers already sent");
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}
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// decref old status line
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if (wsgi_req->status_header) {
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Py_DECREF((PyObject *)wsgi_req->status_header);
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wsgi_req->status_header = NULL;
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}
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if (wsgi_req->headers) {
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Py_DECREF((PyObject *)wsgi_req->headers);
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wsgi_req->headers = NULL;
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}
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#ifdef PYTHREE
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if (wsgi_req->gc_tracker) {
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Py_DECREF((PyObject *)wsgi_req->gc_tracker);
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wsgi_req->gc_tracker = NULL;
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}
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#endif
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// this must be done before headers management
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if (PyTuple_Size(args) > 2) {
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exc_info = PyTuple_GetItem(args, 2);
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if (exc_info && exc_info != Py_None) {
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PyObject *exc_type = PyTuple_GetItem(exc_info, 0);
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PyObject *exc_val = PyTuple_GetItem(exc_info, 1);
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PyObject *exc_tb = PyTuple_GetItem(exc_info, 2);
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if (!exc_type || !exc_val || !exc_tb) {
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return NULL;
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}
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Py_INCREF(exc_type);
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Py_INCREF(exc_val);
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Py_INCREF(exc_tb);
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// in this way, error will be reported to the log
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PyErr_Restore(exc_type, exc_val, exc_tb);
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// the error is reported, let's continue...
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// return NULL
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}
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}
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head = PyTuple_GetItem(args, 0);
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if (!head) {
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return PyErr_Format(PyExc_TypeError, "start_response() takes at least 2 arguments");
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}
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#ifdef PYTHREE
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// check for web3
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if ((self != Py_None && !PyUnicode_Check(head)) || (self == Py_None && !PyBytes_Check(head))) {
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#else
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if (!PyString_Check(head)) {
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#endif
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return PyErr_Format(PyExc_TypeError, "http status must be a string");
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}
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#ifdef PYTHREE
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// this list maintains reference to encoded strings.. ugly hack, i know, but it works...
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wsgi_req->gc_tracker = (void *) PyList_New(0);
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#endif
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if (uwsgi.shared->options[UWSGI_OPTION_CGI_MODE] == 0) {
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base = 4;
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if (wsgi_req->protocol_len == 0) {
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wsgi_req->hvec[0].iov_base = (char *) http_protocol;
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wsgi_req->protocol_len = 8;
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}
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else {
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wsgi_req->hvec[0].iov_base = wsgi_req->protocol;
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}
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wsgi_req->hvec[0].iov_len = wsgi_req->protocol_len;
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wsgi_req->hvec[1].iov_base = " ";
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wsgi_req->hvec[1].iov_len = 1;
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#ifdef PYTHREE
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if (self != Py_None) {
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PyObject *zero = PyUnicode_AsASCIIString(head);
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wsgi_req->hvec[2].iov_base = PyBytes_AsString(zero);
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PyList_Append((PyObject *) wsgi_req->gc_tracker, zero);
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Py_DECREF(zero);
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}
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else {
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wsgi_req->hvec[2].iov_base = PyBytes_AsString(head);
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}
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wsgi_req->hvec[2].iov_len = strlen(wsgi_req->hvec[2].iov_base);
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#else
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wsgi_req->hvec[2].iov_base = PyString_AsString(head);
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wsgi_req->hvec[2].iov_len = PyString_Size(head);
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#endif
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wsgi_req->status = uwsgi_str3_num(wsgi_req->hvec[2].iov_base);
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wsgi_req->hvec[3].iov_base = nl;
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wsgi_req->hvec[3].iov_len = NL_SIZE;
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}
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else {
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// drop http status on cgi mode
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base = 3;
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wsgi_req->hvec[0].iov_base = "Status: ";
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wsgi_req->hvec[0].iov_len = 8;
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#ifdef PYTHREE
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if (self != Py_None) {
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PyObject *zero = PyUnicode_AsASCIIString(head);
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wsgi_req->hvec[1].iov_base = PyBytes_AsString(zero);
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PyList_Append((PyObject *) wsgi_req->gc_tracker, zero);
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Py_DECREF(zero);
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}
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else {
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wsgi_req->hvec[1].iov_base = PyBytes_AsString(head);
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}
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wsgi_req->hvec[1].iov_len = strlen(wsgi_req->hvec[1].iov_base);
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#else
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wsgi_req->hvec[1].iov_base = PyString_AsString(head);
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wsgi_req->hvec[1].iov_len = PyString_Size(head);
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#endif
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wsgi_req->status = uwsgi_str3_num(wsgi_req->hvec[1].iov_base);
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wsgi_req->hvec[2].iov_base = nl;
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wsgi_req->hvec[2].iov_len = NL_SIZE;
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}
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// incref status line
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wsgi_req->status_header = head;
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Py_INCREF((PyObject *)wsgi_req->status_header);
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headers = PyTuple_GetItem(args, 1);
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if (!headers) {
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return PyErr_Format(PyExc_TypeError, "start_response() takes at least 2 arguments");
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}
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wsgi_req->headers = headers;
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Py_INCREF((PyObject *)wsgi_req->headers);
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if (!PyList_Check(headers)) {
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return PyErr_Format(PyExc_TypeError, "http headers must be in a python list");
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}
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wsgi_req->header_cnt = PyList_Size(headers);
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if (wsgi_req->header_cnt > uwsgi.max_vars) {
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wsgi_req->header_cnt = uwsgi.max_vars;
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}
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for (i = 0; i < wsgi_req->header_cnt; i++) {
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j = (i * 4) + base;
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head = PyList_GetItem(headers, i);
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if (!head) {
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return NULL;
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}
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if (!PyTuple_Check(head)) {
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return PyErr_Format(PyExc_TypeError, "http header must be defined in a tuple");
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}
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h_key = PyTuple_GetItem(head, 0);
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if (!h_key) {
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return PyErr_Format(PyExc_TypeError, "http header must be a 2-item tuple");
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}
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#ifdef PYTHREE
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if ((self != Py_None && !PyUnicode_Check(h_key)) || (self == Py_None && !PyBytes_Check(h_key))) {
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#else
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if (!PyString_Check(h_key)) {
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#endif
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return PyErr_Format(PyExc_TypeError, "http header key must be a string");
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}
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h_value = PyTuple_GetItem(head, 1);
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if (!h_value) {
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return PyErr_Format(PyExc_TypeError, "http header must be a 2-item tuple");
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}
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#ifdef PYTHREE
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if ((self != Py_None && !PyUnicode_Check(h_value)) || (self == Py_None && !PyBytes_Check(h_value))) {
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#else
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if (!PyString_Check(h_value)) {
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#endif
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return PyErr_Format(PyExc_TypeError, "http header value must be a string");
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}
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#ifdef PYTHREE
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if (self != Py_None) {
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PyObject *zero = PyUnicode_AsASCIIString(h_key);
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wsgi_req->hvec[j].iov_base = PyBytes_AsString(zero);
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PyList_Append((PyObject *) wsgi_req->gc_tracker, zero);
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Py_DECREF(zero);
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}
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else {
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wsgi_req->hvec[j].iov_base = PyBytes_AsString(h_key);
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}
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wsgi_req->hvec[j].iov_len = strlen(wsgi_req->hvec[j].iov_base);
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#else
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wsgi_req->hvec[j].iov_base = PyString_AsString(h_key);
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wsgi_req->hvec[j].iov_len = PyString_Size(h_key);
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#endif
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wsgi_req->hvec[j + 1].iov_base = h_sep;
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wsgi_req->hvec[j + 1].iov_len = H_SEP_SIZE;
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#ifdef PYTHREE
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if (self != Py_None) {
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PyObject *zero = PyUnicode_AsASCIIString(h_value);
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wsgi_req->hvec[j + 2].iov_base = PyBytes_AsString(zero);
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PyList_Append((PyObject *) wsgi_req->gc_tracker, zero);
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Py_DECREF(zero);
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}
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else {
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wsgi_req->hvec[j + 2].iov_base = PyBytes_AsString(h_value);
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}
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wsgi_req->hvec[j + 2].iov_len = strlen(wsgi_req->hvec[j + 2].iov_base);
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#else
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wsgi_req->hvec[j + 2].iov_base = PyString_AsString(h_value);
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wsgi_req->hvec[j + 2].iov_len = PyString_Size(h_value);
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#endif
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wsgi_req->hvec[j + 3].iov_base = nl;
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wsgi_req->hvec[j + 3].iov_len = NL_SIZE;
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//uwsgi_log( "%.*s: %.*s\n", wsgi_req->hvec[j].iov_len, (char *)wsgi_req->hvec[j].iov_base, wsgi_req->hvec[j+2].iov_len, (char *) wsgi_req->hvec[j+2].iov_base);
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}
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j = (i * 4) + base;
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struct uwsgi_string_list *ah = uwsgi.additional_headers;
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while(ah) {
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if (wsgi_req->header_cnt+1 <= uwsgi.max_vars) {
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wsgi_req->header_cnt++;
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wsgi_req->hvec[j].iov_base = ah->value;
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wsgi_req->hvec[j].iov_len = ah->len;
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j++;
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wsgi_req->hvec[j].iov_base = nl;
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wsgi_req->hvec[j].iov_len = NL_SIZE;
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j++;
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ah = ah->next;
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}
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else {
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uwsgi_log("no more space in iovec. consider increasing max-vars...\n");
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break;
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}
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}
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ah = wsgi_req->additional_headers;
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while(ah) {
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if (wsgi_req->header_cnt+1 <= uwsgi.max_vars) {
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wsgi_req->header_cnt++;
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wsgi_req->hvec[j].iov_base = ah->value;
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wsgi_req->hvec[j].iov_len = ah->len;
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j++;
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wsgi_req->hvec[j].iov_base = nl;
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wsgi_req->hvec[j].iov_len = NL_SIZE;
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j++;
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ah = ah->next;
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}
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else {
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uwsgi_log("no more space in iovec. consider increasing max-vars...\n");
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break;
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}
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}
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// \r\n
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wsgi_req->hvec[j].iov_base = nl;
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wsgi_req->hvec[j].iov_len = NL_SIZE;
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wsgi_req->headers_hvec = j;
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if (up.start_response_nodelay) {
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if (uwsgi_python_do_send_headers(wsgi_req)) {
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return NULL;
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}
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}
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//uwsgi_log("%d %p\n", wsgi_req->poll.fd, up.wsgi_writeout);
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Py_INCREF(up.wsgi_writeout);
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return up.wsgi_writeout;
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}
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int uwsgi_python_do_send_headers(struct wsgi_request *wsgi_req) {
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if (!wsgi_req->headers_hvec) return 0;
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#ifdef __sun__
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int remains = wsgi_req->headers_hvec + 1;
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int iov_size;
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struct iovec* iov_ptr = wsgi_req->hvec;
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ssize_t iov_ret;
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while(remains) {
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iov_size = UMIN(remains, IOV_MAX);
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UWSGI_RELEASE_GIL
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iov_ret = wsgi_req->socket->proto_writev_header(wsgi_req, iov_ptr, iov_size);
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UWSGI_GET_GIL
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wsgi_req->headers_size += iov_ret;
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iov_ptr += iov_size;
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remains -= iov_size;
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}
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#else
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UWSGI_RELEASE_GIL
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wsgi_req->headers_size = wsgi_req->socket->proto_writev_header(wsgi_req, wsgi_req->hvec, wsgi_req->headers_hvec + 1);
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UWSGI_GET_GIL
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#endif
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wsgi_req->headers_sent = 1;
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// decref status line
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if (wsgi_req->status_header) {
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Py_DECREF((PyObject *)wsgi_req->status_header);
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wsgi_req->status_header = NULL;
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}
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if (wsgi_req->headers) {
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Py_DECREF((PyObject *)wsgi_req->headers);
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wsgi_req->headers = NULL;
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}
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#ifdef PYTHREE
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if (wsgi_req->gc_tracker) {
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Py_DECREF((PyObject *)wsgi_req->gc_tracker);
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wsgi_req->gc_tracker = NULL;
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}
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#endif
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if (wsgi_req->write_errors > uwsgi.write_errors_tolerance && !uwsgi.disable_write_exception) {
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uwsgi_py_write_set_exception(wsgi_req);
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return -1;
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}
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return 0;
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}
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