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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>
int HttpPort;
Boolean
mediaInitHTTP(Device *dev)
{
/*
* Some proxies think that files with the extension ".ai" are postscript
* files and use "ascii mode" instead of "binary mode" for ftp.
* The FTP server then translates all LF to CRLF.
* I don't know how to handle this elegantly...
* Squid uses ascii mode, ftpget uses binary mode and both tell us:
* "Content-Type: application/postscript"
*
* Probably the safest way would be to get the file, look at its checksum
* and, if it doesn't match, replace all CRLF by LF and check again.
*
* You can force Squid to use binary mode by appending ";type=i" to the URL,
* which is what I do here.
*
*/
extern int h_errno;
int rv,s;
bool el; /* end of header line */
char *cp, buf[PATH_MAX], req[1000];
struct sockaddr_in peer;
struct hostent *peer_in;
s=socket(PF_INET, SOCK_STREAM, 6); /* tcp */
if (s == -1) {
msgConfirm("Network error");
return FALSE;
}
peer_in=gethostbyname(variable_get(VAR_HTTP_HOST));
if (peer_in == NULL) {
msgConfirm("%s",hstrerror(h_errno));
return FALSE;
}
peer.sin_len=peer_in->h_length;
peer.sin_family=peer_in->h_addrtype;
peer.sin_port=htons((u_short) HttpPort);
bcopy(peer_in->h_addr_list[0], &peer.sin_addr, peer_in->h_length);
rv=connect(s,(struct sockaddr *)&peer,sizeof(peer));
if (rv == -1) {
msgConfirm("Couldn't connect to proxy %s:%s",
variable_get(VAR_HTTP_HOST),variable_get(VAR_FTP_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",1);
} else {
variable_set2(VAR_HTTP_FTP_MODE,"",1);
}
}
/* 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;
bool el; /* end of header line */
char *cp, buf[PATH_MAX], req[1000];
struct sockaddr_in peer;
struct hostent *peer_in;
s=socket(PF_INET, SOCK_STREAM, 6); /* tcp */
if (s == -1) {
msgConfirm("Network error");
return NULL;
}
peer_in=gethostbyname(variable_get(VAR_HTTP_HOST));
peer.sin_len=peer_in->h_length;
peer.sin_family=peer_in->h_addrtype;
peer.sin_port=htons((u_short) HttpPort);
bcopy(peer_in->h_addr_list[0], &peer.sin_addr, peer_in->h_length);
rv=connect(s,(struct sockaddr *)&peer,sizeof(peer));
if (rv == -1) {
msgConfirm("Couldn't connect to proxy %s:%s",
variable_get(VAR_HTTP_HOST),variable_get(VAR_FTP_PORT));
return NULL;
}
sprintf(req,"GET ftp://%s:%s%s%s/%s%s HTTP/1.0\r\n\r\n",
variable_get(VAR_FTP_HOST), variable_get(VAR_FTP_PORT),
"/pub/FreeBSD/", variable_get(VAR_RELNAME),
file,variable_get(VAR_HTTP_FTP_MODE));
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 (rv >= 500) {
msgConfirm("Server error %s, you could try an other server",buf);
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 trying to fetch %s",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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