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#include "sysinstall.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/param.h>
#include <netdb.h>
Boolean
mediaInitHTTP(Device *dev)
{
/*
* 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; /* 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 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));
return FALSE;
}
sprintf(req,"GET / HTTP/1.0\r\n\r\n");
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);
variable_set2(VAR_HTTP_FTP_MODE,"",0);
while (rv>0) {
if ((*cp == '\012') && el) {
/* reached end of a header line */
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 TRUE;
}
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%s HTTP/1.0\r\n\r\n",
variable_get(VAR_FTP_PATH), variable_get(VAR_RELNAME),
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;
}
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