Mercurial > hg
view mercurial/osutil.c @ 23834:bf07c19b4c82
https: support tls sni (server name indication) for https urls (issue3090)
SNI is a common way of sharing servers across multiple domains using separate
SSL certificates. As of Python 2.7.9 SSLContext has been backported from
Python 3. This patch changes sslutil's ssl_wrap_socket to use SSLContext and
take a server hostname as and argument. It also changes the url module to make
use of this argument.
The new code for 2.7.9 achieves it's task by attempting to get the SSLContext
object from the ssl module. If this fails the try/except goes back to what was
there before with the exception that the ssl_wrap_socket functions take a
server_hostname argument that doesn't get used. Assuming the SSLContext
exists, the arguments to wrap_socket at the module level are emulated on the
SSLContext. The SSLContext is initialized with the specified ssl_version. If
certfile is not None load_cert_chain is called with certfile and keyfile.
keyfile being None is not a problem, load_cert_chain will simply expect the
private key to be in the certificate file. verify_mode is set to cert_reqs. If
ca_certs is not None load_verify_locations is called with ca_certs as the
cafile. Finally the wrap_socket method of the SSLContext is called with the
socket and server hostname.
Finally, this fails test-check-commit-hg.t because the "new" function
ssl_wrap_socket has underscores in its names and underscores in its arguments.
All the underscore identifiers are taken from the other functions and as such
can't be changed to match naming conventions.
author | Alex Orange <crazycasta@gmail.com> |
---|---|
date | Mon, 12 Jan 2015 18:01:20 -0700 |
parents | 4ca434500dbf |
children | bc851e2851b1 |
line wrap: on
line source
/* osutil.c - native operating system services Copyright 2007 Matt Mackall and others This software may be used and distributed according to the terms of the GNU General Public License, incorporated herein by reference. */ #define _ATFILE_SOURCE #include <Python.h> #include <fcntl.h> #include <stdio.h> #include <string.h> #include <errno.h> #ifdef _WIN32 #include <windows.h> #include <io.h> #else #include <dirent.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> #endif #include "util.h" /* some platforms lack the PATH_MAX definition (eg. GNU/Hurd) */ #ifndef PATH_MAX #define PATH_MAX 4096 #endif #ifdef _WIN32 /* stat struct compatible with hg expectations Mercurial only uses st_mode, st_size and st_mtime the rest is kept to minimize changes between implementations */ struct hg_stat { int st_dev; int st_mode; int st_nlink; __int64 st_size; int st_mtime; int st_ctime; }; struct listdir_stat { PyObject_HEAD struct hg_stat st; }; #else struct listdir_stat { PyObject_HEAD struct stat st; }; #endif #define listdir_slot(name) \ static PyObject *listdir_stat_##name(PyObject *self, void *x) \ { \ return PyInt_FromLong(((struct listdir_stat *)self)->st.name); \ } listdir_slot(st_dev) listdir_slot(st_mode) listdir_slot(st_nlink) #ifdef _WIN32 static PyObject *listdir_stat_st_size(PyObject *self, void *x) { return PyLong_FromLongLong( (PY_LONG_LONG)((struct listdir_stat *)self)->st.st_size); } #else listdir_slot(st_size) #endif listdir_slot(st_mtime) listdir_slot(st_ctime) static struct PyGetSetDef listdir_stat_getsets[] = { {"st_dev", listdir_stat_st_dev, 0, 0, 0}, {"st_mode", listdir_stat_st_mode, 0, 0, 0}, {"st_nlink", listdir_stat_st_nlink, 0, 0, 0}, {"st_size", listdir_stat_st_size, 0, 0, 0}, {"st_mtime", listdir_stat_st_mtime, 0, 0, 0}, {"st_ctime", listdir_stat_st_ctime, 0, 0, 0}, {0, 0, 0, 0, 0} }; static PyObject *listdir_stat_new(PyTypeObject *t, PyObject *a, PyObject *k) { return t->tp_alloc(t, 0); } static void listdir_stat_dealloc(PyObject *o) { o->ob_type->tp_free(o); } static PyTypeObject listdir_stat_type = { PyVarObject_HEAD_INIT(NULL, 0) "osutil.stat", /*tp_name*/ sizeof(struct listdir_stat), /*tp_basicsize*/ 0, /*tp_itemsize*/ (destructor)listdir_stat_dealloc, /*tp_dealloc*/ 0, /*tp_print*/ 0, /*tp_getattr*/ 0, /*tp_setattr*/ 0, /*tp_compare*/ 0, /*tp_repr*/ 0, /*tp_as_number*/ 0, /*tp_as_sequence*/ 0, /*tp_as_mapping*/ 0, /*tp_hash */ 0, /*tp_call*/ 0, /*tp_str*/ 0, /*tp_getattro*/ 0, /*tp_setattro*/ 0, /*tp_as_buffer*/ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ "stat objects", /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ 0, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ 0, /* tp_methods */ 0, /* tp_members */ listdir_stat_getsets, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ 0, /* tp_init */ 0, /* tp_alloc */ listdir_stat_new, /* tp_new */ }; #ifdef _WIN32 static int to_python_time(const FILETIME *tm) { /* number of seconds between epoch and January 1 1601 */ const __int64 a0 = (__int64)134774L * (__int64)24L * (__int64)3600L; /* conversion factor from 100ns to 1s */ const __int64 a1 = 10000000; /* explicit (int) cast to suspend compiler warnings */ return (int)((((__int64)tm->dwHighDateTime << 32) + tm->dwLowDateTime) / a1 - a0); } static PyObject *make_item(const WIN32_FIND_DATAA *fd, int wantstat) { PyObject *py_st; struct hg_stat *stp; int kind = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? _S_IFDIR : _S_IFREG; if (!wantstat) return Py_BuildValue("si", fd->cFileName, kind); py_st = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); if (!py_st) return NULL; stp = &((struct listdir_stat *)py_st)->st; /* use kind as st_mode rwx bits on Win32 are meaningless and Hg does not use them anyway */ stp->st_mode = kind; stp->st_mtime = to_python_time(&fd->ftLastWriteTime); stp->st_ctime = to_python_time(&fd->ftCreationTime); if (kind == _S_IFREG) stp->st_size = ((__int64)fd->nFileSizeHigh << 32) + fd->nFileSizeLow; return Py_BuildValue("siN", fd->cFileName, kind, py_st); } static PyObject *_listdir(char *path, int plen, int wantstat, char *skip) { PyObject *rval = NULL; /* initialize - return value */ PyObject *list; HANDLE fh; WIN32_FIND_DATAA fd; char *pattern; /* build the path + \* pattern string */ pattern = malloc(plen + 3); /* path + \* + \0 */ if (!pattern) { PyErr_NoMemory(); goto error_nomem; } strcpy(pattern, path); if (plen > 0) { char c = path[plen-1]; if (c != ':' && c != '/' && c != '\\') pattern[plen++] = '\\'; } strcpy(pattern + plen, "*"); fh = FindFirstFileA(pattern, &fd); if (fh == INVALID_HANDLE_VALUE) { PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); goto error_file; } list = PyList_New(0); if (!list) goto error_list; do { PyObject *item; if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { if (!strcmp(fd.cFileName, ".") || !strcmp(fd.cFileName, "..")) continue; if (skip && !strcmp(fd.cFileName, skip)) { rval = PyList_New(0); goto error; } } item = make_item(&fd, wantstat); if (!item) goto error; if (PyList_Append(list, item)) { Py_XDECREF(item); goto error; } Py_XDECREF(item); } while (FindNextFileA(fh, &fd)); if (GetLastError() != ERROR_NO_MORE_FILES) { PyErr_SetFromWindowsErrWithFilename(GetLastError(), path); goto error; } rval = list; Py_XINCREF(rval); error: Py_XDECREF(list); error_list: FindClose(fh); error_file: free(pattern); error_nomem: return rval; } #else int entkind(struct dirent *ent) { #ifdef DT_REG switch (ent->d_type) { case DT_REG: return S_IFREG; case DT_DIR: return S_IFDIR; case DT_LNK: return S_IFLNK; case DT_BLK: return S_IFBLK; case DT_CHR: return S_IFCHR; case DT_FIFO: return S_IFIFO; case DT_SOCK: return S_IFSOCK; } #endif return -1; } static PyObject *makestat(const struct stat *st) { PyObject *stat; stat = PyObject_CallObject((PyObject *)&listdir_stat_type, NULL); if (stat) memcpy(&((struct listdir_stat *)stat)->st, st, sizeof(*st)); return stat; } static PyObject *_listdir(char *path, int pathlen, int keepstat, char *skip) { PyObject *list, *elem, *stat, *ret = NULL; char fullpath[PATH_MAX + 10]; int kind, err; struct stat st; struct dirent *ent; DIR *dir; #ifdef AT_SYMLINK_NOFOLLOW int dfd = -1; #endif if (pathlen >= PATH_MAX) { errno = ENAMETOOLONG; PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); goto error_value; } strncpy(fullpath, path, PATH_MAX); fullpath[pathlen] = '/'; #ifdef AT_SYMLINK_NOFOLLOW dfd = open(path, O_RDONLY); if (dfd == -1) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); goto error_value; } dir = fdopendir(dfd); #else dir = opendir(path); #endif if (!dir) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, path); goto error_dir; } list = PyList_New(0); if (!list) goto error_list; while ((ent = readdir(dir))) { if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) continue; kind = entkind(ent); if (kind == -1 || keepstat) { #ifdef AT_SYMLINK_NOFOLLOW err = fstatat(dfd, ent->d_name, &st, AT_SYMLINK_NOFOLLOW); #else strncpy(fullpath + pathlen + 1, ent->d_name, PATH_MAX - pathlen); fullpath[PATH_MAX] = 0; err = lstat(fullpath, &st); #endif if (err == -1) { /* race with file deletion? */ if (errno == ENOENT) continue; strncpy(fullpath + pathlen + 1, ent->d_name, PATH_MAX - pathlen); fullpath[PATH_MAX] = 0; PyErr_SetFromErrnoWithFilename(PyExc_OSError, fullpath); goto error; } kind = st.st_mode & S_IFMT; } /* quit early? */ if (skip && kind == S_IFDIR && !strcmp(ent->d_name, skip)) { ret = PyList_New(0); goto error; } if (keepstat) { stat = makestat(&st); if (!stat) goto error; elem = Py_BuildValue("siN", ent->d_name, kind, stat); } else elem = Py_BuildValue("si", ent->d_name, kind); if (!elem) goto error; PyList_Append(list, elem); Py_DECREF(elem); } ret = list; Py_INCREF(ret); error: Py_DECREF(list); error_list: closedir(dir); error_dir: #ifdef AT_SYMLINK_NOFOLLOW close(dfd); #endif error_value: return ret; } static PyObject *statfiles(PyObject *self, PyObject *args) { PyObject *names, *stats; Py_ssize_t i, count; if (!PyArg_ParseTuple(args, "O:statfiles", &names)) return NULL; count = PySequence_Length(names); if (count == -1) { PyErr_SetString(PyExc_TypeError, "not a sequence"); return NULL; } stats = PyList_New(count); if (stats == NULL) return NULL; for (i = 0; i < count; i++) { PyObject *stat; struct stat st; int ret, kind; char *path; path = PyString_AsString(PySequence_GetItem(names, i)); if (path == NULL) { PyErr_SetString(PyExc_TypeError, "not a string"); goto bail; } ret = lstat(path, &st); kind = st.st_mode & S_IFMT; if (ret != -1 && (kind == S_IFREG || kind == S_IFLNK)) { stat = makestat(&st); if (stat == NULL) goto bail; PyList_SET_ITEM(stats, i, stat); } else { Py_INCREF(Py_None); PyList_SET_ITEM(stats, i, Py_None); } } return stats; bail: Py_DECREF(stats); return NULL; } #endif /* ndef _WIN32 */ static PyObject *listdir(PyObject *self, PyObject *args, PyObject *kwargs) { PyObject *statobj = NULL; /* initialize - optional arg */ PyObject *skipobj = NULL; /* initialize - optional arg */ char *path, *skip = NULL; int wantstat, plen; static char *kwlist[] = {"path", "stat", "skip", NULL}; if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|OO:listdir", kwlist, &path, &plen, &statobj, &skipobj)) return NULL; wantstat = statobj && PyObject_IsTrue(statobj); if (skipobj && skipobj != Py_None) { skip = PyBytes_AsString(skipobj); if (!skip) return NULL; } return _listdir(path, plen, wantstat, skip); } #ifdef _WIN32 static PyObject *posixfile(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"name", "mode", "buffering", NULL}; PyObject *file_obj = NULL; char *name = NULL; char *mode = "rb"; DWORD access = 0; DWORD creation; HANDLE handle; int fd, flags = 0; int bufsize = -1; char m0, m1, m2; char fpmode[4]; int fppos = 0; int plus; FILE *fp; if (!PyArg_ParseTupleAndKeywords(args, kwds, "et|si:posixfile", kwlist, Py_FileSystemDefaultEncoding, &name, &mode, &bufsize)) return NULL; m0 = mode[0]; m1 = m0 ? mode[1] : '\0'; m2 = m1 ? mode[2] : '\0'; plus = m1 == '+' || m2 == '+'; fpmode[fppos++] = m0; if (m1 == 'b' || m2 == 'b') { flags = _O_BINARY; fpmode[fppos++] = 'b'; } else flags = _O_TEXT; if (m0 == 'r' && !plus) { flags |= _O_RDONLY; access = GENERIC_READ; } else { /* work around http://support.microsoft.com/kb/899149 and set _O_RDWR for 'w' and 'a', even if mode has no '+' */ flags |= _O_RDWR; access = GENERIC_READ | GENERIC_WRITE; fpmode[fppos++] = '+'; } fpmode[fppos++] = '\0'; switch (m0) { case 'r': creation = OPEN_EXISTING; break; case 'w': creation = CREATE_ALWAYS; break; case 'a': creation = OPEN_ALWAYS; flags |= _O_APPEND; break; default: PyErr_Format(PyExc_ValueError, "mode string must begin with one of 'r', 'w', " "or 'a', not '%c'", m0); goto bail; } handle = CreateFile(name, access, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, creation, FILE_ATTRIBUTE_NORMAL, 0); if (handle == INVALID_HANDLE_VALUE) { PyErr_SetFromWindowsErrWithFilename(GetLastError(), name); goto bail; } fd = _open_osfhandle((intptr_t)handle, flags); if (fd == -1) { CloseHandle(handle); PyErr_SetFromErrnoWithFilename(PyExc_IOError, name); goto bail; } #ifndef IS_PY3K fp = _fdopen(fd, fpmode); if (fp == NULL) { _close(fd); PyErr_SetFromErrnoWithFilename(PyExc_IOError, name); goto bail; } file_obj = PyFile_FromFile(fp, name, mode, fclose); if (file_obj == NULL) { fclose(fp); goto bail; } PyFile_SetBufSize(file_obj, bufsize); #else file_obj = PyFile_FromFd(fd, name, mode, bufsize, NULL, NULL, NULL, 1); if (file_obj == NULL) goto bail; #endif bail: PyMem_Free(name); return file_obj; } #endif #ifdef __APPLE__ #include <ApplicationServices/ApplicationServices.h> static PyObject *isgui(PyObject *self) { CFDictionaryRef dict = CGSessionCopyCurrentDictionary(); if (dict != NULL) { CFRelease(dict); Py_RETURN_TRUE; } else { Py_RETURN_FALSE; } } #endif static char osutil_doc[] = "Native operating system services."; static PyMethodDef methods[] = { {"listdir", (PyCFunction)listdir, METH_VARARGS | METH_KEYWORDS, "list a directory\n"}, #ifdef _WIN32 {"posixfile", (PyCFunction)posixfile, METH_VARARGS | METH_KEYWORDS, "Open a file with POSIX-like semantics.\n" "On error, this function may raise either a WindowsError or an IOError."}, #else {"statfiles", (PyCFunction)statfiles, METH_VARARGS | METH_KEYWORDS, "stat a series of files or symlinks\n" "Returns None for non-existent entries and entries of other types.\n"}, #endif #ifdef __APPLE__ { "isgui", (PyCFunction)isgui, METH_NOARGS, "Is a CoreGraphics session available?" }, #endif {NULL, NULL} }; #ifdef IS_PY3K static struct PyModuleDef osutil_module = { PyModuleDef_HEAD_INIT, "osutil", osutil_doc, -1, methods }; PyMODINIT_FUNC PyInit_osutil(void) { if (PyType_Ready(&listdir_stat_type) < 0) return NULL; return PyModule_Create(&osutil_module); } #else PyMODINIT_FUNC initosutil(void) { if (PyType_Ready(&listdir_stat_type) == -1) return; Py_InitModule3("osutil", methods, osutil_doc); } #endif