struct Cookie *
Curl_cookie_add(struct SessionHandle *data,
/* The 'data' pointer here may be NULL at times, and thus
must only be used very carefully for things that can deal
with data being NULL. Such as infof() and similar */
struct CookieInfo *c,
bool httpheader, /* TRUE if HTTP header-style line */
char *lineptr, /* first character of the line */
const char *domain, /* default domain */
const char *path) /* full path used when this cookie is set,
used to get default path for the cookie
unless set */
{
struct Cookie *clist;
char name[MAX_NAME];
struct Cookie *co;
struct Cookie *lastc=NULL;
time_t now = time(NULL);
bool replace_old = FALSE;
bool badcookie = FALSE; /* cookies are good by default. mmmmm yummy */
#ifdef CURL_DISABLE_VERBOSE_STRINGS
(void)data;
#endif
/* First, alloc and init a new struct for it */
co = calloc(sizeof(struct Cookie), 1);
if(!co)
return NULL; /* bail out if we're this low on memory */
if(httpheader) {
/* This line was read off a HTTP-header */
const char *ptr;
const char *sep;
const char *semiptr;
char *what;
what = malloc(MAX_COOKIE_LINE);
if(!what) {
free(co);
return NULL;
}
semiptr=strchr(lineptr, ';'); /* first, find a semicolon */
while(*lineptr && ISBLANK(*lineptr))
lineptr++;
ptr = lineptr;
do {
/* we have a <what>=<this> pair or a 'secure' word here */
sep = strchr(ptr, '=');
if(sep && (!semiptr || (semiptr>sep)) ) {
/*
* There is a = sign and if there was a semicolon too, which make sure
* that the semicolon comes _after_ the equal sign.
*/
name[0]=what[0]=0; /* init the buffers */
if(1 <= sscanf(ptr, "%" MAX_NAME_TXT "[^;=]=%"
MAX_COOKIE_LINE_TXT "[^;\r\n]",
name, what)) {
/* this is a <name>=<what> pair. We use strstore() below to properly
deal with received cookie headers that have the same string
property set more than once, and then we use the last one. */
const char *whatptr;
/* Strip off trailing whitespace from the 'what' */
size_t len=strlen(what);
while(len && ISBLANK(what[len-1])) {
what[len-1]=0;
len--;
}
/* Skip leading whitespace from the 'what' */
whatptr=what;
while(*whatptr && ISBLANK(*whatptr)) {
whatptr++;
}
if(Curl_raw_equal("path", name)) {
strstore(&co->path, whatptr);
if(!co->path) {
badcookie = TRUE; /* out of memory bad */
break;
}
}
else if(Curl_raw_equal("domain", name)) {
/* note that this name may or may not have a preceeding dot, but
we don't care about that, we treat the names the same anyway */
const char *domptr=whatptr;
int dotcount=1;
/* Count the dots, we need to make sure that there are enough
of them. */
if('.' == whatptr[0])
/* don't count the initial dot, assume it */
domptr++;
do {
domptr = strchr(domptr, '.');
if(domptr) {
domptr++;
dotcount++;
}
} while(domptr);
/* The original Netscape cookie spec defined that this domain name
MUST have three dots (or two if one of the seven holy TLDs),
but it seems that these kinds of cookies are in use "out there"
so we cannot be that strict. I've therefore lowered the check
to not allow less than two dots. */
if(dotcount < 2) {
/* Received and skipped a cookie with a domain using too few
dots. */
badcookie=TRUE; /* mark this as a bad cookie */
infof(data, "skipped cookie with illegal dotcount domain: %s\n",
whatptr);
}
else {
/* Now, we make sure that our host is within the given domain,
or the given domain is not valid and thus cannot be set. */
if('.' == whatptr[0])
whatptr++; /* ignore preceeding dot */
if(!domain || tailmatch(whatptr, domain)) {
const char *tailptr=whatptr;
if(tailptr[0] == '.')
tailptr++;
strstore(&co->domain, tailptr); /* don't prefix w/dots
internally */
if(!co->domain) {
badcookie = TRUE;
break;
}
co->tailmatch=TRUE; /* we always do that if the domain name was
given */
}
else {
/* we did not get a tailmatch and then the attempted set domain
is not a domain to which the current host belongs. Mark as
bad. */
badcookie=TRUE;
infof(data, "skipped cookie with bad tailmatch domain: %s\n",
whatptr);
}
}
}
else if(Curl_raw_equal("version", name)) {
strstore(&co->version, whatptr);
if(!co->version) {
badcookie = TRUE;
break;
}
}
else if(Curl_raw_equal("max-age", name)) {
/* Defined in RFC2109:
Optional. The Max-Age attribute defines the lifetime of the
cookie, in seconds. The delta-seconds value is a decimal non-
negative integer. After delta-seconds seconds elapse, the
client should discard the cookie. A value of zero means the
cookie should be discarded immediately.
*/
strstore(&co->maxage, whatptr);
if(!co->maxage) {
badcookie = TRUE;
break;
}
co->expires =
atoi((*co->maxage=='\"')?&co->maxage[1]:&co->maxage[0]) +
(long)now;
}
else if(Curl_raw_equal("expires", name)) {
strstore(&co->expirestr, whatptr);
if(!co->expirestr) {
badcookie = TRUE;
break;
}
/* Note that we store -1 in 'expires' here if the date couldn't
get parsed for whatever reason. This will have the effect that
the cookie won't match. */
co->expires = curl_getdate(what, &now);
}
else if(!co->name) {
co->name = strdup(name);
co->value = strdup(whatptr);
if(!co->name || !co->value) {
badcookie = TRUE;
break;
}
}
/*
else this is the second (or more) name we don't know
about! */
}
else {
/* this is an "illegal" <what>=<this> pair */
}
}
else {
if(sscanf(ptr, "%" MAX_COOKIE_LINE_TXT "[^;\r\n]",
what)) {
if(Curl_raw_equal("secure", what)) {
co->secure = TRUE;
}
else if (Curl_raw_equal("httponly", what)) {
co->httponly = TRUE;
}
/* else,
unsupported keyword without assign! */
}
}
if(!semiptr || !*semiptr) {
/* we already know there are no more cookies */
semiptr = NULL;
continue;
}
ptr=semiptr+1;
while(*ptr && ISBLANK(*ptr))
ptr++;
semiptr=strchr(ptr, ';'); /* now, find the next semicolon */
if(!semiptr && *ptr)
/* There are no more semicolons, but there's a final name=value pair
coming up */
semiptr=strchr(ptr, '\0');
} while(semiptr);
if(!badcookie && !co->domain) {
if(domain) {
/* no domain was given in the header line, set the default */
co->domain=strdup(domain);
if(!co->domain)
badcookie = TRUE;
}
}
if(!badcookie && !co->path && path) {
/* no path was given in the header line, set the default */
char *endslash = strrchr(path, '/');
if(endslash) {
size_t pathlen = endslash-path+1; /* include the ending slash */
co->path=malloc(pathlen+1); /* one extra for the zero byte */
if(co->path) {
memcpy(co->path, path, pathlen);
co->path[pathlen]=0; /* zero terminate */
}
else
badcookie = TRUE;
}
}
free(what);
if(badcookie || !co->name) {
/* we didn't get a cookie name or a bad one,
this is an illegal line, bail out */
freecookie(co);
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;
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 preceeded 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 preceeding 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
Andrés García:
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"); /* store information */
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! Andrés García 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 %d\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;
}
struct Cookie *
Curl_cookie_add(struct Curl_easy *data,
/* The 'data' pointer here may be NULL at times, and thus
must only be used very carefully for things that can deal
with data being NULL. Such as infof() and similar */
struct CookieInfo *c,
bool httpheader, /* TRUE if HTTP header-style line */
bool noexpire, /* if TRUE, skip remove_expired() */
char *lineptr, /* first character of the line */
const char *domain, /* default domain */
const char *path) /* full path used when this cookie is set,
used to get default path for the cookie
unless set */
{
struct Cookie *clist;
struct Cookie *co;
struct Cookie *lastc = NULL;
time_t now = time(NULL);
bool replace_old = FALSE;
bool badcookie = FALSE; /* cookies are good by default. mmmmm yummy */
size_t myhash;
#ifdef CURL_DISABLE_VERBOSE_STRINGS
(void)data;
#endif
/* First, alloc and init a new struct for it */
co = calloc(1, sizeof(struct Cookie));
if(!co)
return NULL; /* bail out if we're this low on memory */
if(httpheader) {
/* This line was read off a HTTP-header */
char name[MAX_NAME];
char what[MAX_NAME];
const char *ptr;
const char *semiptr;
size_t linelength = strlen(lineptr);
if(linelength > MAX_COOKIE_LINE) {
/* discard overly long lines at once */
free(co);
return NULL;
}
semiptr = strchr(lineptr, ';'); /* first, find a semicolon */
while(*lineptr && ISBLANK(*lineptr))
lineptr++;
ptr = lineptr;
do {
/* we have a <what>=<this> pair or a stand-alone word here */
name[0] = what[0] = 0; /* init the buffers */
if(1 <= sscanf(ptr, "%" MAX_NAME_TXT "[^;\r\n=] =%"
MAX_NAME_TXT "[^;\r\n]",
name, what)) {
/* Use strstore() below to properly deal with received cookie
headers that have the same string property set more than once,
and then we use the last one. */
const char *whatptr;
bool done = FALSE;
bool sep;
size_t len = strlen(what);
size_t nlen = strlen(name);
const char *endofn = &ptr[ nlen ];
if(nlen >= (MAX_NAME-1) || len >= (MAX_NAME-1) ||
((nlen + len) > MAX_NAME)) {
/* too long individual name or contents, or too long combination of
name + contents. Chrome and Firefox support 4095 or 4096 bytes
combo. */
freecookie(co);
infof(data, "oversized cookie dropped, name/val %zu + %zu bytes\n",
nlen, len);
return NULL;
}
/* name ends with a '=' ? */
sep = (*endofn == '=')?TRUE:FALSE;
if(nlen) {
endofn--; /* move to the last character */
if(ISBLANK(*endofn)) {
/* skip trailing spaces in name */
while(*endofn && ISBLANK(*endofn) && nlen) {
endofn--;
nlen--;
}
name[nlen] = 0; /* new end of name */
}
}
/* Strip off trailing whitespace from the 'what' */
while(len && ISBLANK(what[len-1])) {
what[len-1] = 0;
len--;
}
/* Skip leading whitespace from the 'what' */
whatptr = what;
while(*whatptr && ISBLANK(*whatptr))
whatptr++;
if(!co->name) {
/* The very first name/value pair is the actual cookie name */
if(!sep) {
/* Bad name/value pair. */
badcookie = TRUE;
break;
}
co->name = strdup(name);
co->value = strdup(whatptr);
done = TRUE;
if(!co->name || !co->value) {
badcookie = TRUE;
break;
}
}
else if(!len) {
/* this was a "<name>=" with no content, and we must allow
'secure' and 'httponly' specified this weirdly */
done = TRUE;
if(strcasecompare("secure", name))
co->secure = TRUE;
else if(strcasecompare("httponly", name))
co->httponly = TRUE;
else if(sep)
/* there was a '=' so we're not done parsing this field */
done = FALSE;
}
if(done)
;
else if(strcasecompare("path", name)) {
strstore(&co->path, whatptr);
if(!co->path) {
badcookie = TRUE; /* out of memory bad */
break;
}
free(co->spath); /* if this is set again */
co->spath = sanitize_cookie_path(co->path);
if(!co->spath) {
badcookie = TRUE; /* out of memory bad */
break;
}
}
else if(strcasecompare("domain", name)) {
bool is_ip;
/* Now, we make sure that our host is within the given domain,
or the given domain is not valid and thus cannot be set. */
if('.' == whatptr[0])
whatptr++; /* ignore preceding dot */
#ifndef USE_LIBPSL
/*
* Without PSL we don't know when the incoming cookie is set on a
* TLD or otherwise "protected" suffix. To reduce risk, we require a
* dot OR the exact host name being "localhost".
*/
if(bad_domain(whatptr))
domain = ":";
#endif
is_ip = isip(domain ? domain : whatptr);
if(!domain
|| (is_ip && !strcmp(whatptr, domain))
|| (!is_ip && tailmatch(whatptr, domain))) {
strstore(&co->domain, whatptr);
if(!co->domain) {
badcookie = TRUE;
break;
}
if(!is_ip)
co->tailmatch = TRUE; /* we always do that if the domain name was
given */
}
else {
/* we did not get a tailmatch and then the attempted set domain
is not a domain to which the current host belongs. Mark as
bad. */
badcookie = TRUE;
infof(data, "skipped cookie with bad tailmatch domain: %s\n",
whatptr);
}
}
else if(strcasecompare("version", name)) {
strstore(&co->version, whatptr);
if(!co->version) {
badcookie = TRUE;
break;
}
}
else if(strcasecompare("max-age", name)) {
/* Defined in RFC2109:
Optional. The Max-Age attribute defines the lifetime of the
cookie, in seconds. The delta-seconds value is a decimal non-
negative integer. After delta-seconds seconds elapse, the
client should discard the cookie. A value of zero means the
cookie should be discarded immediately.
*/
strstore(&co->maxage, whatptr);
if(!co->maxage) {
badcookie = TRUE;
break;
}
}
else if(strcasecompare("expires", name)) {
strstore(&co->expirestr, whatptr);
if(!co->expirestr) {
badcookie = TRUE;
break;
}
}
/*
else this is the second (or more) name we don't know
about! */
}
else {
/* this is an "illegal" <what>=<this> pair */
}
if(!semiptr || !*semiptr) {
/* we already know there are no more cookies */
semiptr = NULL;
continue;
}
ptr = semiptr + 1;
while(*ptr && ISBLANK(*ptr))
ptr++;
semiptr = strchr(ptr, ';'); /* now, find the next semicolon */
if(!semiptr && *ptr)
/* There are no more semicolons, but there's a final name=value pair
coming up */
semiptr = strchr(ptr, '\0');
} while(semiptr);
if(co->maxage) {
CURLofft offt;
offt = curlx_strtoofft((*co->maxage == '\"')?
&co->maxage[1]:&co->maxage[0], NULL, 10,
&co->expires);
if(offt == CURL_OFFT_FLOW)
/* overflow, used max value */
co->expires = CURL_OFF_T_MAX;
else if(!offt) {
if(CURL_OFF_T_MAX - now < co->expires)
/* would overflow */
co->expires = CURL_OFF_T_MAX;
else
co->expires += now;
}
}
else if(co->expirestr) {
/* Note that if the date couldn't get parsed for whatever reason,
the cookie will be treated as a session cookie */
co->expires = curl_getdate(co->expirestr, NULL);
/* Session cookies have expires set to 0 so if we get that back
from the date parser let's add a second to make it a
non-session cookie */
if(co->expires == 0)
co->expires = 1;
else if(co->expires < 0)
co->expires = 0;
}
if(!badcookie && !co->domain) {
if(domain) {
/* no domain was given in the header line, set the default */
co->domain = strdup(domain);
if(!co->domain)
badcookie = TRUE;
}
}
if(!badcookie && !co->path && path) {
/* No path was given in the header line, set the default.
Note that the passed-in path to this function MAY have a '?' and
following part that MUST not be stored as part of the path. */
char *queryp = strchr(path, '?');
/* queryp is where the interesting part of the path ends, so now we
want to the find the last */
char *endslash;
if(!queryp)
endslash = strrchr(path, '/');
else
endslash = memrchr(path, '/', (queryp - path));
if(endslash) {
size_t pathlen = (endslash-path + 1); /* include end slash */
co->path = malloc(pathlen + 1); /* one extra for the zero byte */
if(co->path) {
memcpy(co->path, path, pathlen);
co->path[pathlen] = 0; /* zero terminate */
co->spath = sanitize_cookie_path(co->path);
if(!co->spath)
badcookie = TRUE; /* out of memory bad */
}
else
badcookie = TRUE;
}
}
if(badcookie || !co->name) {
/* we didn't get a cookie name or a bad one,
this is an illegal line, bail out */
freecookie(co);
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;
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 */
/* 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
Andrés García:
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 = strcasecompare(ptr, "TRUE")?TRUE:FALSE;
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! Andrés García 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;
else {
co->spath = sanitize_cookie_path(co->path);
if(!co->spath) {
badcookie = TRUE; /* out of memory bad */
}
}
break;
}
/* this doesn't look like a path, make one up! */
co->path = strdup("/");
if(!co->path)
badcookie = TRUE;
co->spath = strdup("/");
if(!co->spath)
badcookie = TRUE;
fields++; /* add a field and fall down to secure */
/* FALLTHROUGH */
case 3:
co->secure = strcasecompare(ptr, "TRUE")?TRUE:FALSE;
break;
case 4:
if(curlx_strtoofft(ptr, NULL, 10, &co->expires))
badcookie = TRUE;
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;
co->creationtime = ++c->lastct;
/* now, we have parsed the incoming line, we must now check if this
supersedes an already existing cookie, which it may if the previous have
the same domain and path as this */
/* at first, remove expired cookies */
if(!noexpire)
remove_expired(c);
#ifdef USE_LIBPSL
/* Check if the domain is a Public Suffix and if yes, ignore the cookie. */
if(domain && co->domain && !isip(co->domain)) {
const psl_ctx_t *psl = Curl_psl_use(data);
int acceptable;
if(psl) {
acceptable = psl_is_cookie_domain_acceptable(psl, domain, co->domain);
Curl_psl_release(data);
}
else
acceptable = !bad_domain(domain);
if(!acceptable) {
infof(data, "cookie '%s' dropped, domain '%s' must not "
"set cookies for '%s'\n", co->name, domain, co->domain);
freecookie(co);
return NULL;
}
}
#endif
myhash = cookiehash(co->domain);
clist = c->cookies[myhash];
replace_old = FALSE;
while(clist) {
if(strcasecompare(clist->name, co->name)) {
/* the names are identical */
if(clist->domain && co->domain) {
if(strcasecompare(clist->domain, co->domain) &&
(clist->tailmatch == co->tailmatch))
/* 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->spath && co->spath) {
if(strcasecompare(clist->spath, co->spath)) {
replace_old = TRUE;
}
else
replace_old = FALSE;
}
else if(!clist->spath && !co->spath)
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 */
/* when replacing, creationtime is kept from old */
co->creationtime = clist->creationtime;
/* then free all the old pointers */
free(clist->name);
free(clist->value);
free(clist->domain);
free(clist->path);
free(clist->spath);
free(clist->expirestr);
free(clist->version);
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 %" CURL_FORMAT_CURL_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[myhash] = co;
c->numcookies++; /* one more cookie in the jar */
}
return co;
}
