mirror of
https://github.com/moparisthebest/curl
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7c21c1c4f9
There are two keywords in cookie headers that don't follow the regular name=value style: secure and httponly. Still we must support that they are written like 'secure=' and then treat them as if they were written 'secure'. Test case 31 was much extended by Rob Ward to test this. Bug: http://curl.haxx.se/bug/view.cgi?id=3349227 Reported by: "gnombat"
1165 lines
34 KiB
C
1165 lines
34 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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/***
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RECEIVING COOKIE INFORMATION
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============================
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struct CookieInfo *cookie_init(char *file);
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Inits a cookie struct to store data in a local file. This is always
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called before any cookies are set.
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int cookies_set(struct CookieInfo *cookie, char *cookie_line);
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The 'cookie_line' parameter is a full "Set-cookie:" line as
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received from a server.
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The function need to replace previously stored lines that this new
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line superceeds.
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It may remove lines that are expired.
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It should return an indication of success/error.
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SENDING COOKIE INFORMATION
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==========================
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struct Cookies *cookie_getlist(struct CookieInfo *cookie,
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char *host, char *path, bool secure);
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For a given host and path, return a linked list of cookies that
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the client should send to the server if used now. The secure
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boolean informs the cookie if a secure connection is achieved or
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not.
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It shall only return cookies that haven't expired.
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Example set of cookies:
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Set-cookie: PRODUCTINFO=webxpress; domain=.fidelity.com; path=/; secure
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Set-cookie: PERSONALIZE=none;expires=Monday, 13-Jun-1988 03:04:55 GMT;
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domain=.fidelity.com; path=/ftgw; secure
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Set-cookie: FidHist=none;expires=Monday, 13-Jun-1988 03:04:55 GMT;
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domain=.fidelity.com; path=/; secure
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Set-cookie: FidOrder=none;expires=Monday, 13-Jun-1988 03:04:55 GMT;
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domain=.fidelity.com; path=/; secure
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Set-cookie: DisPend=none;expires=Monday, 13-Jun-1988 03:04:55 GMT;
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domain=.fidelity.com; path=/; secure
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Set-cookie: FidDis=none;expires=Monday, 13-Jun-1988 03:04:55 GMT;
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domain=.fidelity.com; path=/; secure
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Set-cookie:
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Session_Key@6791a9e0-901a-11d0-a1c8-9b012c88aa77=none;expires=Monday,
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13-Jun-1988 03:04:55 GMT; domain=.fidelity.com; path=/; secure
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****/
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#include "setup.h"
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#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
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#define _MPRINTF_REPLACE
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#include <curl/mprintf.h>
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#include "urldata.h"
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#include "cookie.h"
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#include "strequal.h"
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#include "strtok.h"
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#include "sendf.h"
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#include "curl_memory.h"
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#include "share.h"
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#include "strtoofft.h"
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#include "rawstr.h"
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#include "curl_memrchr.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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static void freecookie(struct Cookie *co)
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{
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if(co->expirestr)
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free(co->expirestr);
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if(co->domain)
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free(co->domain);
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if(co->path)
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free(co->path);
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if(co->name)
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free(co->name);
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if(co->value)
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free(co->value);
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if(co->maxage)
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free(co->maxage);
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if(co->version)
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free(co->version);
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free(co);
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}
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static bool tailmatch(const char *little, const char *bigone)
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{
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size_t littlelen = strlen(little);
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size_t biglen = strlen(bigone);
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if(littlelen > biglen)
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return FALSE;
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return (bool)Curl_raw_equal(little, bigone+biglen-littlelen);
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}
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/*
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* Load cookies from all given cookie files (CURLOPT_COOKIEFILE).
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*/
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void Curl_cookie_loadfiles(struct SessionHandle *data)
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{
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struct curl_slist *list = data->change.cookielist;
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if(list) {
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Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
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while(list) {
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data->cookies = Curl_cookie_init(data,
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list->data,
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data->cookies,
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data->set.cookiesession);
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list = list->next;
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}
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Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
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curl_slist_free_all(data->change.cookielist); /* clean up list */
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data->change.cookielist = NULL; /* don't do this again! */
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}
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}
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/*
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* strstore() makes a strdup() on the 'newstr' and if '*str' is non-NULL
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* that will be freed before the allocated string is stored there.
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*
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* It is meant to easily replace strdup()
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*/
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static void strstore(char **str, const char *newstr)
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{
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if(*str)
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free(*str);
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*str = strdup(newstr);
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}
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/****************************************************************************
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*
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* Curl_cookie_add()
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*
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* Add a single cookie line to the cookie keeping object.
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*
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***************************************************************************/
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struct Cookie *
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Curl_cookie_add(struct SessionHandle *data,
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/* The 'data' pointer here may be NULL at times, and thus
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must only be used very carefully for things that can deal
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with data being NULL. Such as infof() and similar */
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struct CookieInfo *c,
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bool httpheader, /* TRUE if HTTP header-style line */
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char *lineptr, /* first character of the line */
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const char *domain, /* default domain */
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const char *path) /* full path used when this cookie is set,
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used to get default path for the cookie
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unless set */
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{
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struct Cookie *clist;
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char name[MAX_NAME];
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struct Cookie *co;
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struct Cookie *lastc=NULL;
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time_t now = time(NULL);
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bool replace_old = FALSE;
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bool badcookie = FALSE; /* cookies are good by default. mmmmm yummy */
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#ifdef CURL_DISABLE_VERBOSE_STRINGS
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(void)data;
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#endif
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/* First, alloc and init a new struct for it */
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co = calloc(1, sizeof(struct Cookie));
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if(!co)
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return NULL; /* bail out if we're this low on memory */
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if(httpheader) {
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/* This line was read off a HTTP-header */
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const char *ptr;
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const char *semiptr;
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char *what;
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what = malloc(MAX_COOKIE_LINE);
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if(!what) {
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free(co);
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return NULL;
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}
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semiptr=strchr(lineptr, ';'); /* first, find a semicolon */
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while(*lineptr && ISBLANK(*lineptr))
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lineptr++;
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ptr = lineptr;
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do {
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/* we have a <what>=<this> pair or a stand-alone word here */
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name[0]=what[0]=0; /* init the buffers */
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if(1 <= sscanf(ptr, "%" MAX_NAME_TXT "[^;\r\n =]=%"
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MAX_COOKIE_LINE_TXT "[^;\r\n]",
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name, what)) {
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/* Use strstore() below to properly deal with received cookie
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headers that have the same string property set more than once,
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and then we use the last one. */
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const char *whatptr;
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bool done = FALSE;
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bool sep;
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size_t len=strlen(what);
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const char *endofn = &ptr[ strlen(name) ];
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/* skip trailing spaces in name */
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while(*endofn && ISBLANK(*endofn))
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endofn++;
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/* name ends with a '=' ? */
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sep = *endofn == '='?TRUE:FALSE;
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/* Strip off trailing whitespace from the 'what' */
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while(len && ISBLANK(what[len-1])) {
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what[len-1]=0;
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len--;
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}
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/* Skip leading whitespace from the 'what' */
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whatptr=what;
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while(*whatptr && ISBLANK(*whatptr))
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whatptr++;
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if(!len) {
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/* this was a "<name>=" with no content, and we must allow
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'secure' and 'httponly' specified this weirdly */
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done = TRUE;
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if(Curl_raw_equal("secure", name))
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co->secure = TRUE;
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else if(Curl_raw_equal("httponly", name))
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co->httponly = TRUE;
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else if(sep)
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/* there was a '=' so we're not done parsing this field */
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done = FALSE;
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}
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if(done)
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;
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else if(Curl_raw_equal("path", name)) {
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strstore(&co->path, whatptr);
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if(!co->path) {
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badcookie = TRUE; /* out of memory bad */
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break;
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}
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}
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else if(Curl_raw_equal("domain", name)) {
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/* note that this name may or may not have a preceding dot, but
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we don't care about that, we treat the names the same anyway */
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const char *domptr=whatptr;
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const char *nextptr;
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int dotcount=1;
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/* Count the dots, we need to make sure that there are enough
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of them. */
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if('.' == whatptr[0])
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/* don't count the initial dot, assume it */
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domptr++;
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do {
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nextptr = strchr(domptr, '.');
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if(nextptr) {
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if(domptr != nextptr)
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dotcount++;
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domptr = nextptr+1;
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}
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} while(nextptr);
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/* The original Netscape cookie spec defined that this domain name
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MUST have three dots (or two if one of the seven holy TLDs),
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but it seems that these kinds of cookies are in use "out there"
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so we cannot be that strict. I've therefore lowered the check
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to not allow less than two dots. */
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if(dotcount < 2) {
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/* Received and skipped a cookie with a domain using too few
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dots. */
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badcookie=TRUE; /* mark this as a bad cookie */
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infof(data, "skipped cookie with illegal dotcount domain: %s\n",
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whatptr);
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}
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else {
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/* Now, we make sure that our host is within the given domain,
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or the given domain is not valid and thus cannot be set. */
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if('.' == whatptr[0])
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whatptr++; /* ignore preceding dot */
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if(!domain || tailmatch(whatptr, domain)) {
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const char *tailptr=whatptr;
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if(tailptr[0] == '.')
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tailptr++;
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strstore(&co->domain, tailptr); /* don't prefix w/dots
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internally */
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if(!co->domain) {
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badcookie = TRUE;
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break;
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}
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co->tailmatch=TRUE; /* we always do that if the domain name was
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given */
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}
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else {
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/* we did not get a tailmatch and then the attempted set domain
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is not a domain to which the current host belongs. Mark as
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bad. */
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badcookie=TRUE;
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infof(data, "skipped cookie with bad tailmatch domain: %s\n",
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whatptr);
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}
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}
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}
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else if(Curl_raw_equal("version", name)) {
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strstore(&co->version, whatptr);
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if(!co->version) {
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badcookie = TRUE;
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break;
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}
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}
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else if(Curl_raw_equal("max-age", name)) {
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/* Defined in RFC2109:
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Optional. The Max-Age attribute defines the lifetime of the
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cookie, in seconds. The delta-seconds value is a decimal non-
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negative integer. After delta-seconds seconds elapse, the
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client should discard the cookie. A value of zero means the
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cookie should be discarded immediately.
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*/
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strstore(&co->maxage, whatptr);
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if(!co->maxage) {
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badcookie = TRUE;
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break;
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}
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co->expires =
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strtol((*co->maxage=='\"')?&co->maxage[1]:&co->maxage[0],NULL,10)
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+ (long)now;
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}
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else if(Curl_raw_equal("expires", name)) {
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strstore(&co->expirestr, whatptr);
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if(!co->expirestr) {
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badcookie = TRUE;
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break;
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}
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/* Note that if the date couldn't get parsed for whatever reason,
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the cookie will be treated as a session cookie */
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co->expires = curl_getdate(what, &now);
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/* Session cookies have expires set to 0 so if we get that back
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from the date parser let's add a second to make it a
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non-session cookie */
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if(co->expires == 0)
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co->expires = 1;
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else if(co->expires < 0)
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co->expires = 0;
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}
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else if(!co->name) {
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co->name = strdup(name);
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co->value = strdup(whatptr);
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if(!co->name || !co->value) {
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badcookie = TRUE;
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break;
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}
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}
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/*
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else this is the second (or more) name we don't know
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about! */
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}
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else {
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/* this is an "illegal" <what>=<this> pair */
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}
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if(!semiptr || !*semiptr) {
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/* we already know there are no more cookies */
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semiptr = NULL;
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continue;
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}
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ptr=semiptr+1;
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while(*ptr && ISBLANK(*ptr))
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ptr++;
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semiptr=strchr(ptr, ';'); /* now, find the next semicolon */
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if(!semiptr && *ptr)
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/* There are no more semicolons, but there's a final name=value pair
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coming up */
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semiptr=strchr(ptr, '\0');
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} while(semiptr);
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if(!badcookie && !co->domain) {
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if(domain) {
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/* no domain was given in the header line, set the default */
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co->domain=strdup(domain);
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if(!co->domain)
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badcookie = TRUE;
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}
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}
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|
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if(!badcookie && !co->path && path) {
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/* No path was given in the header line, set the default.
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Note that the passed-in path to this function MAY have a '?' and
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following part that MUST not be stored as part of the path. */
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char *queryp = strchr(path, '?');
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|
||
/* queryp is where the interesting part of the path ends, so now we
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want to the find the last */
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char *endslash;
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if(!queryp)
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endslash = strrchr(path, '/');
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else
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endslash = memrchr(path, '/', (size_t)(queryp - path));
|
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if(endslash) {
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size_t pathlen = (size_t)(endslash-path+1); /* include ending slash */
|
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co->path=malloc(pathlen+1); /* one extra for the zero byte */
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if(co->path) {
|
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memcpy(co->path, path, pathlen);
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co->path[pathlen]=0; /* zero terminate */
|
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}
|
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else
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badcookie = TRUE;
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}
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}
|
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|
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free(what);
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|
||
if(badcookie || !co->name) {
|
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/* we didn't get a cookie name or a bad one,
|
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this is an illegal line, bail out */
|
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freecookie(co);
|
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return NULL;
|
||
}
|
||
|
||
}
|
||
else {
|
||
/* This line is NOT a HTTP header style line, we do offer support for
|
||
reading the odd netscape cookies-file format here */
|
||
char *ptr;
|
||
char *firstptr;
|
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char *tok_buf=NULL;
|
||
int fields;
|
||
|
||
/* IE introduced HTTP-only cookies to prevent XSS attacks. Cookies
|
||
marked with httpOnly after the domain name are not accessible
|
||
from javascripts, but since curl does not operate at javascript
|
||
level, we include them anyway. In Firefox's cookie files, these
|
||
lines are preceded with #HttpOnly_ and then everything is
|
||
as usual, so we skip 10 characters of the line..
|
||
*/
|
||
if(strncmp(lineptr, "#HttpOnly_", 10) == 0) {
|
||
lineptr += 10;
|
||
co->httponly = TRUE;
|
||
}
|
||
|
||
if(lineptr[0]=='#') {
|
||
/* don't even try the comments */
|
||
free(co);
|
||
return NULL;
|
||
}
|
||
/* strip off the possible end-of-line characters */
|
||
ptr=strchr(lineptr, '\r');
|
||
if(ptr)
|
||
*ptr=0; /* clear it */
|
||
ptr=strchr(lineptr, '\n');
|
||
if(ptr)
|
||
*ptr=0; /* clear it */
|
||
|
||
firstptr=strtok_r(lineptr, "\t", &tok_buf); /* tokenize it on the TAB */
|
||
|
||
/* Here's a quick check to eliminate normal HTTP-headers from this */
|
||
if(!firstptr || strchr(firstptr, ':')) {
|
||
free(co);
|
||
return NULL;
|
||
}
|
||
|
||
/* Now loop through the fields and init the struct we already have
|
||
allocated */
|
||
for(ptr=firstptr, fields=0; ptr && !badcookie;
|
||
ptr=strtok_r(NULL, "\t", &tok_buf), fields++) {
|
||
switch(fields) {
|
||
case 0:
|
||
if(ptr[0]=='.') /* skip preceding dots */
|
||
ptr++;
|
||
co->domain = strdup(ptr);
|
||
if(!co->domain)
|
||
badcookie = TRUE;
|
||
break;
|
||
case 1:
|
||
/* This field got its explanation on the 23rd of May 2001 by
|
||
Andr<64>s Garc<72>a:
|
||
|
||
flag: A TRUE/FALSE value indicating if all machines within a given
|
||
domain can access the variable. This value is set automatically by
|
||
the browser, depending on the value you set for the domain.
|
||
|
||
As far as I can see, it is set to true when the cookie says
|
||
.domain.com and to false when the domain is complete www.domain.com
|
||
*/
|
||
co->tailmatch=(bool)Curl_raw_equal(ptr, "TRUE");
|
||
break;
|
||
case 2:
|
||
/* It turns out, that sometimes the file format allows the path
|
||
field to remain not filled in, we try to detect this and work
|
||
around it! Andr<64>s Garc<72>a made us aware of this... */
|
||
if(strcmp("TRUE", ptr) && strcmp("FALSE", ptr)) {
|
||
/* only if the path doesn't look like a boolean option! */
|
||
co->path = strdup(ptr);
|
||
if(!co->path)
|
||
badcookie = TRUE;
|
||
break;
|
||
}
|
||
/* this doesn't look like a path, make one up! */
|
||
co->path = strdup("/");
|
||
if(!co->path)
|
||
badcookie = TRUE;
|
||
fields++; /* add a field and fall down to secure */
|
||
/* FALLTHROUGH */
|
||
case 3:
|
||
co->secure = (bool)Curl_raw_equal(ptr, "TRUE");
|
||
break;
|
||
case 4:
|
||
co->expires = curlx_strtoofft(ptr, NULL, 10);
|
||
break;
|
||
case 5:
|
||
co->name = strdup(ptr);
|
||
if(!co->name)
|
||
badcookie = TRUE;
|
||
break;
|
||
case 6:
|
||
co->value = strdup(ptr);
|
||
if(!co->value)
|
||
badcookie = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
if(6 == fields) {
|
||
/* we got a cookie with blank contents, fix it */
|
||
co->value = strdup("");
|
||
if(!co->value)
|
||
badcookie = TRUE;
|
||
else
|
||
fields++;
|
||
}
|
||
|
||
if(!badcookie && (7 != fields))
|
||
/* we did not find the sufficient number of fields */
|
||
badcookie = TRUE;
|
||
|
||
if(badcookie) {
|
||
freecookie(co);
|
||
return NULL;
|
||
}
|
||
|
||
}
|
||
|
||
if(!c->running && /* read from a file */
|
||
c->newsession && /* clean session cookies */
|
||
!co->expires) { /* this is a session cookie since it doesn't expire! */
|
||
freecookie(co);
|
||
return NULL;
|
||
}
|
||
|
||
co->livecookie = c->running;
|
||
|
||
/* now, we have parsed the incoming line, we must now check if this
|
||
superceeds an already existing cookie, which it may if the previous have
|
||
the same domain and path as this */
|
||
|
||
clist = c->cookies;
|
||
replace_old = FALSE;
|
||
while(clist) {
|
||
if(Curl_raw_equal(clist->name, co->name)) {
|
||
/* the names are identical */
|
||
|
||
if(clist->domain && co->domain) {
|
||
if(Curl_raw_equal(clist->domain, co->domain))
|
||
/* The domains are identical */
|
||
replace_old=TRUE;
|
||
}
|
||
else if(!clist->domain && !co->domain)
|
||
replace_old = TRUE;
|
||
|
||
if(replace_old) {
|
||
/* the domains were identical */
|
||
|
||
if(clist->path && co->path) {
|
||
if(Curl_raw_equal(clist->path, co->path)) {
|
||
replace_old = TRUE;
|
||
}
|
||
else
|
||
replace_old = FALSE;
|
||
}
|
||
else if(!clist->path && !co->path)
|
||
replace_old = TRUE;
|
||
else
|
||
replace_old = FALSE;
|
||
|
||
}
|
||
|
||
if(replace_old && !co->livecookie && clist->livecookie) {
|
||
/* Both cookies matched fine, except that the already present
|
||
cookie is "live", which means it was set from a header, while
|
||
the new one isn't "live" and thus only read from a file. We let
|
||
live cookies stay alive */
|
||
|
||
/* Free the newcomer and get out of here! */
|
||
freecookie(co);
|
||
return NULL;
|
||
}
|
||
|
||
if(replace_old) {
|
||
co->next = clist->next; /* get the next-pointer first */
|
||
|
||
/* then free all the old pointers */
|
||
free(clist->name);
|
||
if(clist->value)
|
||
free(clist->value);
|
||
if(clist->domain)
|
||
free(clist->domain);
|
||
if(clist->path)
|
||
free(clist->path);
|
||
if(clist->expirestr)
|
||
free(clist->expirestr);
|
||
|
||
if(clist->version)
|
||
free(clist->version);
|
||
if(clist->maxage)
|
||
free(clist->maxage);
|
||
|
||
*clist = *co; /* then store all the new data */
|
||
|
||
free(co); /* free the newly alloced memory */
|
||
co = clist; /* point to the previous struct instead */
|
||
|
||
/* We have replaced a cookie, now skip the rest of the list but
|
||
make sure the 'lastc' pointer is properly set */
|
||
do {
|
||
lastc = clist;
|
||
clist = clist->next;
|
||
} while(clist);
|
||
break;
|
||
}
|
||
}
|
||
lastc = clist;
|
||
clist = clist->next;
|
||
}
|
||
|
||
if(c->running)
|
||
/* Only show this when NOT reading the cookies from a file */
|
||
infof(data, "%s cookie %s=\"%s\" for domain %s, path %s, "
|
||
"expire %" FORMAT_OFF_T "\n",
|
||
replace_old?"Replaced":"Added", co->name, co->value,
|
||
co->domain, co->path, co->expires);
|
||
|
||
if(!replace_old) {
|
||
/* then make the last item point on this new one */
|
||
if(lastc)
|
||
lastc->next = co;
|
||
else
|
||
c->cookies = co;
|
||
}
|
||
|
||
c->numcookies++; /* one more cookie in the jar */
|
||
return co;
|
||
}
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_init()
|
||
*
|
||
* Inits a cookie struct to read data from a local file. This is always
|
||
* called before any cookies are set. File may be NULL.
|
||
*
|
||
* If 'newsession' is TRUE, discard all "session cookies" on read from file.
|
||
*
|
||
****************************************************************************/
|
||
struct CookieInfo *Curl_cookie_init(struct SessionHandle *data,
|
||
const char *file,
|
||
struct CookieInfo *inc,
|
||
bool newsession)
|
||
{
|
||
struct CookieInfo *c;
|
||
FILE *fp;
|
||
bool fromfile=TRUE;
|
||
|
||
if(NULL == inc) {
|
||
/* we didn't get a struct, create one */
|
||
c = calloc(1, sizeof(struct CookieInfo));
|
||
if(!c)
|
||
return NULL; /* failed to get memory */
|
||
c->filename = strdup(file?file:"none"); /* copy the name just in case */
|
||
}
|
||
else {
|
||
/* we got an already existing one, use that */
|
||
c = inc;
|
||
}
|
||
c->running = FALSE; /* this is not running, this is init */
|
||
|
||
if(file && strequal(file, "-")) {
|
||
fp = stdin;
|
||
fromfile=FALSE;
|
||
}
|
||
else if(file && !*file) {
|
||
/* points to a "" string */
|
||
fp = NULL;
|
||
}
|
||
else
|
||
fp = file?fopen(file, "r"):NULL;
|
||
|
||
c->newsession = newsession; /* new session? */
|
||
|
||
if(fp) {
|
||
char *lineptr;
|
||
bool headerline;
|
||
|
||
char *line = malloc(MAX_COOKIE_LINE);
|
||
if(line) {
|
||
while(fgets(line, MAX_COOKIE_LINE, fp)) {
|
||
if(checkprefix("Set-Cookie:", line)) {
|
||
/* This is a cookie line, get it! */
|
||
lineptr=&line[11];
|
||
headerline=TRUE;
|
||
}
|
||
else {
|
||
lineptr=line;
|
||
headerline=FALSE;
|
||
}
|
||
while(*lineptr && ISBLANK(*lineptr))
|
||
lineptr++;
|
||
|
||
Curl_cookie_add(data, c, headerline, lineptr, NULL, NULL);
|
||
}
|
||
free(line); /* free the line buffer */
|
||
}
|
||
if(fromfile)
|
||
fclose(fp);
|
||
}
|
||
|
||
c->running = TRUE; /* now, we're running */
|
||
|
||
return c;
|
||
}
|
||
|
||
/* sort this so that the longest path gets before the shorter path */
|
||
static int cookie_sort(const void *p1, const void *p2)
|
||
{
|
||
struct Cookie *c1 = *(struct Cookie **)p1;
|
||
struct Cookie *c2 = *(struct Cookie **)p2;
|
||
|
||
size_t l1 = c1->path?strlen(c1->path):0;
|
||
size_t l2 = c2->path?strlen(c2->path):0;
|
||
|
||
return (l2 > l1) ? 1 : (l2 < l1) ? -1 : 0 ;
|
||
}
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_getlist()
|
||
*
|
||
* For a given host and path, return a linked list of cookies that the
|
||
* client should send to the server if used now. The secure boolean informs
|
||
* the cookie if a secure connection is achieved or not.
|
||
*
|
||
* It shall only return cookies that haven't expired.
|
||
*
|
||
****************************************************************************/
|
||
|
||
struct Cookie *Curl_cookie_getlist(struct CookieInfo *c,
|
||
const char *host, const char *path,
|
||
bool secure)
|
||
{
|
||
struct Cookie *newco;
|
||
struct Cookie *co;
|
||
time_t now = time(NULL);
|
||
struct Cookie *mainco=NULL;
|
||
size_t matches = 0;
|
||
|
||
if(!c || !c->cookies)
|
||
return NULL; /* no cookie struct or no cookies in the struct */
|
||
|
||
co = c->cookies;
|
||
|
||
while(co) {
|
||
/* only process this cookie if it is not expired or had no expire
|
||
date AND that if the cookie requires we're secure we must only
|
||
continue if we are! */
|
||
if((!co->expires || (co->expires > now)) &&
|
||
(co->secure?secure:TRUE)) {
|
||
|
||
/* now check if the domain is correct */
|
||
if(!co->domain ||
|
||
(co->tailmatch && tailmatch(co->domain, host)) ||
|
||
(!co->tailmatch && Curl_raw_equal(host, co->domain)) ) {
|
||
/* the right part of the host matches the domain stuff in the
|
||
cookie data */
|
||
|
||
/* now check the left part of the path with the cookies path
|
||
requirement */
|
||
if(!co->path ||
|
||
/* not using checkprefix() because matching should be
|
||
case-sensitive */
|
||
!strncmp(co->path, path, strlen(co->path)) ) {
|
||
|
||
/* and now, we know this is a match and we should create an
|
||
entry for the return-linked-list */
|
||
|
||
newco = malloc(sizeof(struct Cookie));
|
||
if(newco) {
|
||
/* first, copy the whole source cookie: */
|
||
memcpy(newco, co, sizeof(struct Cookie));
|
||
|
||
/* then modify our next */
|
||
newco->next = mainco;
|
||
|
||
/* point the main to us */
|
||
mainco = newco;
|
||
|
||
matches++;
|
||
}
|
||
else {
|
||
fail:
|
||
/* failure, clear up the allocated chain and return NULL */
|
||
while(mainco) {
|
||
co = mainco->next;
|
||
free(mainco);
|
||
mainco = co;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
co = co->next;
|
||
}
|
||
|
||
if(matches) {
|
||
/* Now we need to make sure that if there is a name appearing more than
|
||
once, the longest specified path version comes first. To make this
|
||
the swiftest way, we just sort them all based on path length. */
|
||
struct Cookie **array;
|
||
size_t i;
|
||
|
||
/* alloc an array and store all cookie pointers */
|
||
array = malloc(sizeof(struct Cookie *) * matches);
|
||
if(!array)
|
||
goto fail;
|
||
|
||
co = mainco;
|
||
|
||
for(i=0; co; co = co->next)
|
||
array[i++] = co;
|
||
|
||
/* now sort the cookie pointers in path lenth order */
|
||
qsort(array, matches, sizeof(struct Cookie *), cookie_sort);
|
||
|
||
/* remake the linked list order according to the new order */
|
||
|
||
mainco = array[0]; /* start here */
|
||
for(i=0; i<matches-1; i++)
|
||
array[i]->next = array[i+1];
|
||
array[matches-1]->next = NULL; /* terminate the list */
|
||
|
||
free(array); /* remove the temporary data again */
|
||
}
|
||
|
||
return mainco; /* return the new list */
|
||
}
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_clearall()
|
||
*
|
||
* Clear all existing cookies and reset the counter.
|
||
*
|
||
****************************************************************************/
|
||
void Curl_cookie_clearall(struct CookieInfo *cookies)
|
||
{
|
||
if(cookies) {
|
||
Curl_cookie_freelist(cookies->cookies, TRUE);
|
||
cookies->cookies = NULL;
|
||
cookies->numcookies = 0;
|
||
}
|
||
}
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_freelist()
|
||
*
|
||
* Free a list of cookies previously returned by Curl_cookie_getlist();
|
||
*
|
||
* The 'cookiestoo' argument tells this function whether to just free the
|
||
* list or actually also free all cookies within the list as well.
|
||
*
|
||
****************************************************************************/
|
||
|
||
void Curl_cookie_freelist(struct Cookie *co, bool cookiestoo)
|
||
{
|
||
struct Cookie *next;
|
||
if(co) {
|
||
while(co) {
|
||
next = co->next;
|
||
if(cookiestoo)
|
||
freecookie(co);
|
||
else
|
||
free(co); /* we only free the struct since the "members" are all just
|
||
pointed out in the main cookie list! */
|
||
co = next;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_clearsess()
|
||
*
|
||
* Free all session cookies in the cookies list.
|
||
*
|
||
****************************************************************************/
|
||
void Curl_cookie_clearsess(struct CookieInfo *cookies)
|
||
{
|
||
struct Cookie *first, *curr, *next, *prev = NULL;
|
||
|
||
if(!cookies || !cookies->cookies)
|
||
return;
|
||
|
||
first = curr = prev = cookies->cookies;
|
||
|
||
for(; curr; curr = next) {
|
||
next = curr->next;
|
||
if(!curr->expires) {
|
||
if(first == curr)
|
||
first = next;
|
||
|
||
if(prev == curr)
|
||
prev = next;
|
||
else
|
||
prev->next = next;
|
||
|
||
freecookie(curr);
|
||
cookies->numcookies--;
|
||
}
|
||
else
|
||
prev = curr;
|
||
}
|
||
|
||
cookies->cookies = first;
|
||
}
|
||
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Curl_cookie_cleanup()
|
||
*
|
||
* Free a "cookie object" previous created with cookie_init().
|
||
*
|
||
****************************************************************************/
|
||
void Curl_cookie_cleanup(struct CookieInfo *c)
|
||
{
|
||
struct Cookie *co;
|
||
struct Cookie *next;
|
||
if(c) {
|
||
if(c->filename)
|
||
free(c->filename);
|
||
co = c->cookies;
|
||
|
||
while(co) {
|
||
next = co->next;
|
||
freecookie(co);
|
||
co = next;
|
||
}
|
||
free(c); /* free the base struct as well */
|
||
}
|
||
}
|
||
|
||
/* get_netscape_format()
|
||
*
|
||
* Formats a string for Netscape output file, w/o a newline at the end.
|
||
*
|
||
* Function returns a char * to a formatted line. Has to be free()d
|
||
*/
|
||
static char *get_netscape_format(const struct Cookie *co)
|
||
{
|
||
return aprintf(
|
||
"%s" /* httponly preamble */
|
||
"%s%s\t" /* domain */
|
||
"%s\t" /* tailmatch */
|
||
"%s\t" /* path */
|
||
"%s\t" /* secure */
|
||
"%" FORMAT_OFF_T "\t" /* expires */
|
||
"%s\t" /* name */
|
||
"%s", /* value */
|
||
co->httponly?"#HttpOnly_":"",
|
||
/* Make sure all domains are prefixed with a dot if they allow
|
||
tailmatching. This is Mozilla-style. */
|
||
(co->tailmatch && co->domain && co->domain[0] != '.')? ".":"",
|
||
co->domain?co->domain:"unknown",
|
||
co->tailmatch?"TRUE":"FALSE",
|
||
co->path?co->path:"/",
|
||
co->secure?"TRUE":"FALSE",
|
||
co->expires,
|
||
co->name,
|
||
co->value?co->value:"");
|
||
}
|
||
|
||
/*
|
||
* cookie_output()
|
||
*
|
||
* Writes all internally known cookies to the specified file. Specify
|
||
* "-" as file name to write to stdout.
|
||
*
|
||
* The function returns non-zero on write failure.
|
||
*/
|
||
static int cookie_output(struct CookieInfo *c, const char *dumphere)
|
||
{
|
||
struct Cookie *co;
|
||
FILE *out;
|
||
bool use_stdout=FALSE;
|
||
|
||
if((NULL == c) || (0 == c->numcookies))
|
||
/* If there are no known cookies, we don't write or even create any
|
||
destination file */
|
||
return 0;
|
||
|
||
if(strequal("-", dumphere)) {
|
||
/* use stdout */
|
||
out = stdout;
|
||
use_stdout=TRUE;
|
||
}
|
||
else {
|
||
out = fopen(dumphere, "w");
|
||
if(!out)
|
||
return 1; /* failure */
|
||
}
|
||
|
||
if(c) {
|
||
char *format_ptr;
|
||
|
||
fputs("# Netscape HTTP Cookie File\n"
|
||
"# http://curl.haxx.se/rfc/cookie_spec.html\n"
|
||
"# This file was generated by libcurl! Edit at your own risk.\n\n",
|
||
out);
|
||
co = c->cookies;
|
||
|
||
while(co) {
|
||
format_ptr = get_netscape_format(co);
|
||
if(format_ptr == NULL) {
|
||
fprintf(out, "#\n# Fatal libcurl error\n");
|
||
if(!use_stdout)
|
||
fclose(out);
|
||
return 1;
|
||
}
|
||
fprintf(out, "%s\n", format_ptr);
|
||
free(format_ptr);
|
||
co=co->next;
|
||
}
|
||
}
|
||
|
||
if(!use_stdout)
|
||
fclose(out);
|
||
|
||
return 0;
|
||
}
|
||
|
||
struct curl_slist *Curl_cookie_list(struct SessionHandle *data)
|
||
{
|
||
struct curl_slist *list = NULL;
|
||
struct curl_slist *beg;
|
||
struct Cookie *c;
|
||
char *line;
|
||
|
||
if((data->cookies == NULL) ||
|
||
(data->cookies->numcookies == 0))
|
||
return NULL;
|
||
|
||
c = data->cookies->cookies;
|
||
|
||
beg = list;
|
||
while(c) {
|
||
/* fill the list with _all_ the cookies we know */
|
||
line = get_netscape_format(c);
|
||
if(line == NULL) {
|
||
curl_slist_free_all(beg);
|
||
return NULL;
|
||
}
|
||
list = curl_slist_append(list, line);
|
||
free(line);
|
||
if(list == NULL) {
|
||
curl_slist_free_all(beg);
|
||
return NULL;
|
||
}
|
||
else if(beg == NULL) {
|
||
beg = list;
|
||
}
|
||
c = c->next;
|
||
}
|
||
|
||
return list;
|
||
}
|
||
|
||
void Curl_flush_cookies(struct SessionHandle *data, int cleanup)
|
||
{
|
||
if(data->set.str[STRING_COOKIEJAR]) {
|
||
if(data->change.cookielist) {
|
||
/* If there is a list of cookie files to read, do it first so that
|
||
we have all the told files read before we write the new jar.
|
||
Curl_cookie_loadfiles() LOCKS and UNLOCKS the share itself! */
|
||
Curl_cookie_loadfiles(data);
|
||
}
|
||
|
||
Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
|
||
|
||
/* if we have a destination file for all the cookies to get dumped to */
|
||
if(cookie_output(data->cookies, data->set.str[STRING_COOKIEJAR]))
|
||
infof(data, "WARNING: failed to save cookies in %s\n",
|
||
data->set.str[STRING_COOKIEJAR]);
|
||
}
|
||
else {
|
||
if(cleanup && data->change.cookielist)
|
||
/* since nothing is written, we can just free the list of cookie file
|
||
names */
|
||
curl_slist_free_all(data->change.cookielist); /* clean up list */
|
||
Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
|
||
}
|
||
|
||
if(cleanup && (!data->share || (data->cookies != data->share->cookies))) {
|
||
Curl_cookie_cleanup(data->cookies);
|
||
}
|
||
Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
|
||
}
|
||
|
||
#endif /* CURL_DISABLE_HTTP || CURL_DISABLE_COOKIES */
|