mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
251 lines
6.6 KiB
C
251 lines
6.6 KiB
C
#include "sysinstall.h"
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <sys/param.h>
|
|
#include <netdb.h>
|
|
|
|
extern const char *ftp_dirs[]; /* defined in ftp.c */
|
|
|
|
Boolean
|
|
checkAccess(Boolean proxyCheckOnly)
|
|
{
|
|
/*
|
|
* Some proxies fetch files with certain extensions in "ascii mode" instead
|
|
* of "binary mode" for FTP. The FTP server then translates all LF to CRLF.
|
|
*
|
|
* You can force Squid to use binary mode by appending ";type=i" to the URL,
|
|
* which is what I do here. For other proxies, the LF->CRLF substitution
|
|
* is reverted in distExtract().
|
|
*/
|
|
|
|
int rv, s, af;
|
|
bool el, found=FALSE; /* end of header line */
|
|
char *cp, buf[PATH_MAX], req[BUFSIZ];
|
|
struct addrinfo hints, *res, *res0;
|
|
|
|
af = variable_cmp(VAR_IPV6_ENABLE, "YES") ? AF_INET : AF_UNSPEC;
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = af;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_protocol = 0;
|
|
if ((rv = getaddrinfo(variable_get(VAR_HTTP_HOST),
|
|
variable_get(VAR_HTTP_PORT), &hints, &res0)) != 0) {
|
|
msgConfirm("%s", gai_strerror(rv));
|
|
variable_unset(VAR_HTTP_HOST);
|
|
return FALSE;
|
|
}
|
|
s = -1;
|
|
for (res = res0; res; res = res->ai_next) {
|
|
if ((s = socket(res->ai_family, res->ai_socktype,
|
|
res->ai_protocol)) < 0)
|
|
continue;
|
|
if (connect(s, res->ai_addr, res->ai_addrlen) >= 0)
|
|
break;
|
|
close(s);
|
|
s = -1;
|
|
}
|
|
freeaddrinfo(res0);
|
|
if (s == -1) {
|
|
msgConfirm("Couldn't connect to proxy %s:%s",
|
|
variable_get(VAR_HTTP_HOST),variable_get(VAR_HTTP_PORT));
|
|
variable_unset(VAR_HTTP_HOST);
|
|
return FALSE;
|
|
}
|
|
if (proxyCheckOnly) {
|
|
close(s);
|
|
return TRUE;
|
|
}
|
|
|
|
msgNotify("Checking access to\n %s", variable_get(VAR_HTTP_PATH));
|
|
sprintf(req,"HEAD %s/ HTTP/1.0\r\n\r\n", variable_get(VAR_HTTP_PATH));
|
|
write(s,req,strlen(req));
|
|
/*
|
|
* scan the headers of the response
|
|
* this is extremely quick'n dirty
|
|
*
|
|
*/
|
|
bzero(buf, PATH_MAX);
|
|
cp=buf;
|
|
el=FALSE;
|
|
rv=read(s,cp,1);
|
|
variable_set2(VAR_HTTP_FTP_MODE,"",0);
|
|
while (rv>0) {
|
|
if ((*cp == '\012') && el) {
|
|
/* reached end of a header line */
|
|
if (!strncmp(buf,"HTTP",4)) {
|
|
if (strtol((char *)(buf+9),0,0) == 200) {
|
|
found = TRUE;
|
|
}
|
|
}
|
|
|
|
if (!strncmp(buf,"Server: ",8)) {
|
|
if (!strncmp(buf,"Server: Squid",13)) {
|
|
variable_set2(VAR_HTTP_FTP_MODE,";type=i",0);
|
|
} else {
|
|
variable_set2(VAR_HTTP_FTP_MODE,"",0);
|
|
}
|
|
}
|
|
/* ignore other headers */
|
|
/* check for "\015\012" at beginning of line, i.e. end of headers */
|
|
if ((cp-buf) == 1)
|
|
break;
|
|
cp=buf;
|
|
rv=read(s,cp,1);
|
|
} else {
|
|
el=FALSE;
|
|
if (*cp == '\015')
|
|
el=TRUE;
|
|
cp++;
|
|
rv=read(s,cp,1);
|
|
}
|
|
}
|
|
close(s);
|
|
return found;
|
|
}
|
|
|
|
Boolean
|
|
mediaInitHTTP(Device *dev)
|
|
{
|
|
bool found=FALSE; /* end of header line */
|
|
char *rel, req[BUFSIZ];
|
|
int fdir;
|
|
|
|
/*
|
|
* First verify the proxy access
|
|
*/
|
|
checkAccess(TRUE);
|
|
while (variable_get(VAR_HTTP_HOST) == NULL) {
|
|
if (DITEM_STATUS(mediaSetHTTP(NULL)) == DITEM_FAILURE)
|
|
return FALSE;
|
|
checkAccess(TRUE);
|
|
}
|
|
again:
|
|
/* If the release is specified as "__RELEASE" or "any", then just
|
|
* assume that the path the user gave is ok.
|
|
*/
|
|
rel = variable_get(VAR_RELNAME);
|
|
/*
|
|
msgConfirm("rel: -%s-", rel);
|
|
*/
|
|
|
|
if (strcmp(rel, "__RELEASE") && strcmp(rel, "any")) {
|
|
for (fdir = 0; ftp_dirs[fdir]; fdir++) {
|
|
sprintf(req, "%s/%s/%s", variable_get(VAR_FTP_PATH),
|
|
ftp_dirs[fdir], rel);
|
|
variable_set2(VAR_HTTP_PATH, req, 0);
|
|
if (checkAccess(FALSE)) {
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
variable_set2(VAR_HTTP_PATH, variable_get(VAR_FTP_PATH), 0);
|
|
found = checkAccess(FALSE);
|
|
}
|
|
if (!found) {
|
|
msgConfirm("No such directory: %s\n"
|
|
"please check the URL and try again.", variable_get(VAR_HTTP_PATH));
|
|
variable_unset(VAR_HTTP_PATH);
|
|
dialog_clear_norefresh();
|
|
clear();
|
|
if (DITEM_STATUS(mediaSetHTTP(NULL)) != DITEM_FAILURE) goto again;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
FILE *
|
|
mediaGetHTTP(Device *dev, char *file, Boolean probe)
|
|
{
|
|
FILE *fp;
|
|
int rv, s, af;
|
|
bool el; /* end of header line */
|
|
char *cp, buf[PATH_MAX], req[BUFSIZ];
|
|
struct addrinfo hints, *res, *res0;
|
|
|
|
af = variable_cmp(VAR_IPV6_ENABLE, "YES") ? AF_INET : AF_UNSPEC;
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = af;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_protocol = 0;
|
|
if ((rv = getaddrinfo(variable_get(VAR_HTTP_HOST),
|
|
variable_get(VAR_HTTP_PORT), &hints, &res0)) != 0) {
|
|
msgConfirm("%s", gai_strerror(rv));
|
|
return NULL;
|
|
}
|
|
s = -1;
|
|
for (res = res0; res; res = res->ai_next) {
|
|
if ((s = socket(res->ai_family, res->ai_socktype,
|
|
res->ai_protocol)) < 0)
|
|
continue;
|
|
if (connect(s, res->ai_addr, res->ai_addrlen) >= 0)
|
|
break;
|
|
close(s);
|
|
s = -1;
|
|
}
|
|
freeaddrinfo(res0);
|
|
if (s == -1) {
|
|
msgConfirm("Couldn't connect to proxy %s:%s",
|
|
variable_get(VAR_HTTP_HOST),variable_get(VAR_HTTP_PORT));
|
|
return NULL;
|
|
}
|
|
|
|
sprintf(req,"GET %s/%s%s HTTP/1.0\r\n\r\n",
|
|
variable_get(VAR_HTTP_PATH), file, variable_get(VAR_HTTP_FTP_MODE));
|
|
|
|
if (isDebug()) {
|
|
msgDebug("sending http request: %s",req);
|
|
}
|
|
write(s,req,strlen(req));
|
|
|
|
/*
|
|
* scan the headers of the response
|
|
* this is extremely quick'n dirty
|
|
*
|
|
*/
|
|
cp=buf;
|
|
el=FALSE;
|
|
rv=read(s,cp,1);
|
|
while (rv>0) {
|
|
if ((*cp == '\012') && el) {
|
|
/* reached end of a header line */
|
|
if (!strncmp(buf,"HTTP",4)) {
|
|
rv=strtol((char *)(buf+9),0,0);
|
|
*(cp-1)='\0'; /* chop the CRLF off */
|
|
if (probe && (rv != 200)) {
|
|
return NULL;
|
|
} else if (rv >= 500) {
|
|
msgConfirm("Server error %s when sending %s, you could try an other server",buf, req);
|
|
return NULL;
|
|
} else if (rv == 404) {
|
|
msgConfirm("%s was not found, maybe directory or release-version are wrong?",req);
|
|
return NULL;
|
|
} else if (rv >= 400) {
|
|
msgConfirm("Client error %s, you could try an other server",buf);
|
|
return NULL;
|
|
} else if (rv >= 300) {
|
|
msgConfirm("Error %s,",buf);
|
|
return NULL;
|
|
} else if (rv != 200) {
|
|
msgConfirm("Error %s when sending %s, you could try an other server",buf, req);
|
|
return NULL;
|
|
}
|
|
}
|
|
/* ignore other headers */
|
|
/* check for "\015\012" at beginning of line, i.e. end of headers */
|
|
if ((cp-buf) == 1)
|
|
break;
|
|
cp=buf;
|
|
rv=read(s,cp,1);
|
|
} else {
|
|
el=FALSE;
|
|
if (*cp == '\015')
|
|
el=TRUE;
|
|
cp++;
|
|
rv=read(s,cp,1);
|
|
}
|
|
}
|
|
fp=fdopen(s,"r");
|
|
return fp;
|
|
}
|