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|
#include "system.h"
#ifdef __LCLINT__
#define ntohl(_x) (_x)
#define ntohs(_x) (_x)
#define htonl(_x) (_x)
#define htons(_x) (_x)
#else
#include <netinet/in.h>
#endif /* __LCLINT__ */
#include <rpmbuild.h>
#include <rpmio.h>
#include <rpmurl.h>
#ifndef IPPORT_HTTP
#define IPPORT_HTTP 80
#endif
/*@access urlinfo@*/
#define URL_IOBUF_SIZE 4096
int url_iobuf_size = URL_IOBUF_SIZE;
#define RPMURL_DEBUG_IO 0x40000000
#define RPMURL_DEBUG_REFS 0x20000000
int _url_debug = 0;
#define DBG(_f, _m, _x) if ((_url_debug | (_f)) & (_m)) fprintf _x
#define DBGIO(_f, _x) DBG((_f), RPMURL_DEBUG_IO, _x)
#define DBGREFS(_f, _x) DBG((_f), RPMURL_DEBUG_REFS, _x)
/*@only@*/ /*@null@*/ static urlinfo *uCache = NULL;
static int uCount = 0;
urlinfo XurlLink(urlinfo u, const char *msg, const char *file, unsigned line)
{
URLSANE(u);
u->nrefs++;
DBGREFS(0, (stderr, "--> url %p ++ %d %s at %s:%u\n", u, u->nrefs, msg, file, line));
return u;
}
urlinfo XurlNew(const char *msg, const char *file, unsigned line)
{
urlinfo u;
if ((u = xmalloc(sizeof(*u))) == NULL)
return NULL;
memset(u, 0, sizeof(*u));
u->proxyp = -1;
u->port = -1;
u->urltype = URL_IS_UNKNOWN;
u->ctrl = NULL;
u->data = NULL;
u->bufAlloced = 0;
u->buf = NULL;
u->httpHasRange = 1;
u->httpVersion = 0;
u->nrefs = 0;
u->magic = URLMAGIC;
return XurlLink(u, msg, file, line);
}
urlinfo XurlFree(urlinfo u, const char *msg, const char *file, unsigned line)
{
URLSANE(u);
DBGREFS(0, (stderr, "--> url %p -- %d %s at %s:%u\n", u, u->nrefs, msg, file, line));
if (--u->nrefs > 0)
return u;
if (u->ctrl) {
#ifndef NOTYET
void * fp = fdGetFp(u->ctrl);
if (fp) {
fdPush(u->ctrl, fpio, fp, -1); /* Push fpio onto stack */
Fclose(u->ctrl);
} else if (fdio->_fileno(u->ctrl) >= 0)
fdio->close(u->ctrl);
#else
Fclose(u->ctrl);
#endif
u->ctrl = fdio->deref(u->ctrl, "persist ctrl (urlFree)", file, line);
if (u->ctrl)
fprintf(stderr, _("warning: u %p ctrl %p nrefs != 0 (%s %s)\n"),
u, u->ctrl, u->host, u->service);
}
if (u->data) {
#ifndef NOTYET
void * fp = fdGetFp(u->data);
if (fp) {
fdPush(u->data, fpio, fp, -1); /* Push fpio onto stack */
Fclose(u->data);
} else if (fdio->_fileno(u->data) >= 0)
fdio->close(u->data);
#else
Fclose(u->ctrl);
#endif
u->data = fdio->deref(u->data, "persist data (urlFree)", file, line);
if (u->data)
fprintf(stderr, _("warning: u %p data %p nrefs != 0 (%s %s)\n"),
u, u->data, u->host, u->service);
}
if (u->buf) {
free(u->buf);
u->buf = NULL;
}
FREE(u->url);
FREE(u->service);
FREE(u->user);
FREE(u->password);
FREE(u->host);
FREE(u->portstr);
FREE(u->path);
FREE(u->proxyu);
FREE(u->proxyh);
/*@-refcounttrans@*/ FREE(u); /*@-refcounttrans@*/
return NULL;
}
void urlFreeCache(void)
{
int i;
for (i = 0; i < uCount; i++) {
if (uCache[i] == NULL) continue;
uCache[i] = urlFree(uCache[i], "uCache");
if (uCache[i])
fprintf(stderr, _("warning: uCache[%d] %p nrefs(%d) != 1 (%s %s)\n"),
i, uCache[i], uCache[i]->nrefs,
uCache[i]->host, uCache[i]->service);
}
if (uCache)
free(uCache);
uCache = NULL;
uCount = 0;
}
static int urlStrcmp(const char *str1, const char *str2)
{
if (str1 && str2)
return (strcmp(str1, str2));
if (str1 != str2)
return -1;
return 0;
}
static void urlFind(urlinfo *uret, int mustAsk)
{
urlinfo u;
int ucx;
int i;
if (uret == NULL)
return;
u = *uret;
URLSANE(u);
ucx = -1;
for (i = 0; i < uCount; i++) {
urlinfo ou;
if ((ou = uCache[i]) == NULL) {
if (ucx < 0)
ucx = i;
continue;
}
/* Check for cache-miss condition. A cache miss is
* a) both items are not NULL and don't compare.
* b) either of the items is not NULL.
*/
if (urlStrcmp(u->service, ou->service))
continue;
if (urlStrcmp(u->service, ou->service))
continue;
if (urlStrcmp(u->host, ou->host))
continue;
if (urlStrcmp(u->user, ou->user))
continue;
if (urlStrcmp(u->password, ou->password))
continue;
if (urlStrcmp(u->portstr, ou->portstr))
continue;
break; /* Found item in cache */
}
if (i == uCount) {
if (ucx < 0) {
ucx = uCount++;
if (uCache)
uCache = xrealloc(uCache, sizeof(*uCache) * uCount);
else
uCache = xmalloc(sizeof(*uCache));
}
uCache[i] = urlLink(u, "uCache (miss)");
u = urlFree(u, "urlSplit (urlFind miss)");
} else {
/* XXX Swap original url and path into the cached structure */
const char *up = uCache[i]->path;
ucx = i;
uCache[ucx]->path = u->path;
u->path = up;
up = uCache[ucx]->url;
uCache[ucx]->url = u->url;
u->url = up;
u = urlFree(u, "urlSplit (urlFind hit)");
}
/* This URL is now cached. */
u = urlLink(uCache[i], "uCache");
*uret = u;
u = urlFree(u, "uCache (urlFind)");
/* Zap proxy host and port in case they have been reset */
u->proxyp = -1;
FREE(u->proxyh);
/* Perform one-time FTP initialization */
if (u->urltype == URL_IS_FTP) {
if (mustAsk || (u->user != NULL && u->password == NULL)) {
char * prompt;
prompt = alloca(strlen(u->host) + strlen(u->user) + 40);
sprintf(prompt, _("Password for %s@%s: "), u->user, u->host);
FREE(u->password);
u->password = xstrdup( /*@-unrecog@*/ getpass(prompt) /*@=unrecog@*/ );
}
if (u->proxyh == NULL) {
const char *proxy = rpmExpand("%{_ftpproxy}", NULL);
if (proxy && *proxy != '%') {
const char *uu = (u->user ? u->user : "anonymous");
char *nu = xmalloc(strlen(uu) + sizeof("@") + strlen(u->host));
strcpy(nu, uu);
strcat(nu, "@");
strcat(nu, u->host);
u->proxyu = nu;
u->proxyh = xstrdup(proxy);
}
xfree(proxy);
}
if (u->proxyp < 0) {
const char *proxy = rpmExpand("%{_ftpport}", NULL);
if (proxy && *proxy != '%') {
char *end;
int port = strtol(proxy, &end, 0);
if (!(end && *end == '\0')) {
fprintf(stderr, _("error: %sport must be a number\n"),
u->service);
return;
}
u->proxyp = port;
}
xfree(proxy);
}
}
/* Perform one-time HTTP initialization */
if (u->urltype == URL_IS_HTTP) {
if (u->proxyh == NULL) {
const char *proxy = rpmExpand("%{_httpproxy}", NULL);
if (proxy && *proxy != '%')
u->proxyh = xstrdup(proxy);
xfree(proxy);
}
if (u->proxyp < 0) {
const char *proxy = rpmExpand("%{_httpport}", NULL);
if (proxy && *proxy != '%') {
char *end;
int port = strtol(proxy, &end, 0);
if (!(end && *end == '\0')) {
fprintf(stderr, _("error: %sport must be a number\n"),
u->service);
return;
}
u->proxyp = port;
}
xfree(proxy);
}
}
return;
}
static struct urlstring {
const char *leadin;
urltype ret;
} urlstrings[] = {
{ "file://", URL_IS_PATH },
{ "ftp://", URL_IS_FTP },
{ "http://", URL_IS_HTTP },
{ "-", URL_IS_DASH },
{ NULL, URL_IS_UNKNOWN }
};
urltype urlIsURL(const char * url) {
struct urlstring *us;
if (url && *url) {
for (us = urlstrings; us->leadin != NULL; us++) {
if (strncmp(url, us->leadin, strlen(us->leadin)))
continue;
return us->ret;
}
}
return URL_IS_UNKNOWN;
}
/* Return path portion of url (or pointer to NUL if url == NULL) */
int urlPath(const char * url, const char ** pathp)
{
const char *path;
int urltype;
path = url;
urltype = urlIsURL(url);
switch (urltype) {
case URL_IS_FTP:
url += sizeof("ftp://") - 1;
path = strchr(url, '/');
if (path == NULL) path = url + strlen(url);
break;
case URL_IS_HTTP:
case URL_IS_PATH:
url += sizeof("file://") - 1;
path = strchr(url, '/');
if (path == NULL) path = url + strlen(url);
break;
case URL_IS_UNKNOWN:
if (path == NULL) path = "";
break;
case URL_IS_DASH:
path = "";
break;
}
if (pathp)
*pathp = path;
return urltype;
}
/*
* Split URL into components. The URL can look like
* service://user:password@host:port/path
*/
int urlSplit(const char * url, urlinfo *uret)
{
urlinfo u;
char *myurl;
char *s, *se, *f, *fe;
if (uret == NULL)
return -1;
if ((u = urlNew("urlSplit")) == NULL)
return -1;
if ((se = s = myurl = xstrdup(url)) == NULL) {
u = urlFree(u, "urlSplit (error #1)");
return -1;
}
u->url = xstrdup(url);
u->urltype = urlIsURL(url);
while (1) {
/* Point to end of next item */
while (*se && *se != '/') se++;
/* Item was service. Save service and go for the rest ...*/
if (*se && (se != s) && se[-1] == ':' && se[0] == '/' && se[1] == '/') {
se[-1] = '\0';
u->service = xstrdup(s);
se += 2; /* skip over "//" */
s = se++;
continue;
}
/* Item was everything-but-path. Save path and continue parse on rest */
u->path = xstrdup((*se ? se : "/"));
*se = '\0';
break;
}
/* Look for ...@host... */
fe = f = s;
while (*fe && *fe != '@') fe++;
if (*fe == '@') {
s = fe + 1;
*fe = '\0';
/* Look for user:password@host... */
while (fe > f && *fe != ':') fe--;
if (*fe == ':') {
*fe++ = '\0';
u->password = xstrdup(fe);
}
u->user = xstrdup(f);
}
/* Look for ...host:port */
fe = f = s;
while (*fe && *fe != ':') fe++;
if (*fe == ':') {
*fe++ = '\0';
u->portstr = xstrdup(fe);
if (u->portstr != NULL && u->portstr[0] != '\0') {
char *end;
u->port = strtol(u->portstr, &end, 0);
if (!(end && *end == '\0')) {
rpmMessage(RPMMESS_ERROR, _("url port must be a number\n"));
if (myurl) free(myurl);
u = urlFree(u, "urlSplit (error #3)");
return -1;
}
}
}
u->host = xstrdup(f);
if (u->port < 0 && u->service != NULL) {
struct servent *serv;
serv = /*@-unrecog@*/ getservbyname(u->service, "tcp") /*@=unrecog@*/;
if (serv != NULL)
u->port = ntohs(serv->s_port);
else if (u->urltype == URL_IS_FTP)
u->port = IPPORT_FTP;
else if (u->urltype == URL_IS_HTTP)
u->port = IPPORT_HTTP;
}
if (myurl) free(myurl);
if (uret) {
*uret = u;
urlFind(uret, 0);
}
return 0;
}
int urlGetFile(const char * url, const char * dest) {
int rc;
FD_t sfd = NULL;
FD_t tfd = NULL;
urlinfo sfu;
sfd = Fopen(url, "r.ufdio");
if (sfd == NULL || Ferror(sfd)) {
rpmMessage(RPMMESS_DEBUG, _("failed to open %s: %s\n"), url, Fstrerror(sfd));
Fclose(sfd);
return FTPERR_UNKNOWN;
}
sfu = ufdGetUrlinfo(sfd);
if (sfu != NULL && dest == NULL) {
const char *fileName = sfu->path;
if ((dest = strrchr(fileName, '/')) != NULL)
dest++;
else
dest = fileName;
}
if (sfu != NULL) {
(void) urlFree(sfu, "ufdGetUrlinfo (urlGetFile)");
sfu = NULL;
}
tfd = Fopen(dest, "w.ufdio");
if (_url_debug)
fprintf(stderr, "*** urlGetFile sfd %p %s tfd %p %s\n", sfd, url, tfd, dest);
if (Ferror(tfd)) {
/* XXX Fstrerror */
rpmMessage(RPMMESS_DEBUG, _("failed to create %s: %s\n"), dest, Fstrerror(tfd));
if (tfd)
Fclose(tfd);
if (sfd)
Fclose(sfd);
return FTPERR_UNKNOWN;
}
switch (urlIsURL(url)) {
case URL_IS_FTP:
case URL_IS_HTTP:
case URL_IS_PATH:
case URL_IS_DASH:
case URL_IS_UNKNOWN:
if ((rc = ufdGetFile(sfd, tfd))) {
Unlink(dest);
/* XXX FIXME: sfd possibly closed by copyData */
/*@-usereleased@*/ Fclose(sfd) /*@=usereleased@*/ ;
}
/* XXX Fclose(sfd) done by ufdCopy */
break;
default:
rc = FTPERR_UNKNOWN;
break;
}
Fclose(tfd);
return rc;
}
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