storm/w3m
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
6823531d6b96f75f7da72764628c4bbb048340b8
w3m/url.c
Fumitoshi UKAI 55891cb44a run "make indent"
2001-12-07 07:58:07 +00:00

1955 lines
45 KiB
C
Raw Blame History

/* $Id: url.c,v 1.22 2001/12/07 07:58:07 ukai Exp $ */
#include "fm.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <signal.h>
#include <setjmp.h>
#include <errno.h>
#include <sys/stat.h>
#ifdef __EMX__
#include <io.h> /* ?? */
#endif /* __EMX__ */
#include "html.h"
#include "Str.h"
#include "myctype.h"
#include "regex.h"
#ifdef USE_SSL
#ifndef SSLEAY_VERSION_NUMBER
#include <crypto.h> /* SSLEAY_VERSION_NUMBER may be here */
#endif
#include <err.h>
#endif
#ifdef __WATT32__
#define write(a,b,c) write_s(a,b,c)
#endif /* __WATT32__ */
#ifdef INET6
/* see rc.c, "dns_order" and dnsorders[] */
int ai_family_order_table[3][3] = {
{PF_UNSPEC, PF_UNSPEC, PF_UNSPEC}, /* 0:unspec */
{PF_INET, PF_INET6, PF_UNSPEC}, /* 1:inet inet6 */
{PF_INET6, PF_INET, PF_UNSPEC} /* 2:inet6 inet */
};
#endif /* INET6 */
static JMP_BUF AbortLoading;
/* XXX: note html.h SCM_ */
static int
DefaultPort[] = {
80, /* http */
70, /* gopher */
21, /* ftp */
21, /* ftpdir */
0, /* local - not defined */
0, /* local-CGI - not defined? */
0, /* exec - not defined? */
119, /* nntp */
119, /* news */
0, /* mailto - not defined */
#ifdef USE_SSL
443, /* https */
#endif /* USE_SSL */
};
struct cmdtable schemetable[] = {
{"http", SCM_HTTP},
{"gopher", SCM_GOPHER},
{"ftp", SCM_FTP},
{"local", SCM_LOCAL},
{"file", SCM_LOCAL},
/* {"exec", SCM_EXEC}, */
{"nntp", SCM_NNTP},
{"news", SCM_NEWS},
{"mailto", SCM_MAILTO},
#ifdef USE_SSL
{"https", SCM_HTTPS},
#endif /* USE_SSL */
{NULL, SCM_UNKNOWN},
};
static struct table2 DefaultGuess[] = {
{"html", "text/html"},
{"HTML", "text/html"},
{"htm", "text/html"},
{"HTM", "text/html"},
{"shtml", "text/html"},
{"SHTML", "text/html"},
{"gif", "image/gif"},
{"GIF", "image/gif"},
{"jpeg", "image/jpeg"},
{"jpg", "image/jpeg"},
{"JPEG", "image/jpeg"},
{"JPG", "image/jpeg"},
{"png", "image/png"},
{"PNG", "image/png"},
{"xbm", "image/xbm"},
{"XBM", "image/xbm"},
{"au", "audio/basic"},
{"AU", "audio/basic"},
{"gz", "application/x-gzip"},
{"Z", "application/x-compress"},
{"bz2", "application/x-bzip"},
{"tar", "application/x-tar"},
{"zip", "application/x-zip"},
{"lha", "application/x-lha"},
{"lzh", "application/x-lha"},
{"LZH", "application/x-lha"},
{"ps", "application/postscript"},
{"pdf", "application/pdf"},
{NULL, NULL}
};
static void add_index_file(ParsedURL *pu, URLFile *uf);
/* #define HTTP_DEFAULT_FILE "/index.html" */
#ifndef HTTP_DEFAULT_FILE
#define HTTP_DEFAULT_FILE "/"
#endif /* not HTTP_DEFAULT_FILE */
#ifdef SOCK_DEBUG
#include <stdarg.h>
static void
sock_log(char *message, ...)
{
FILE *f = fopen("zzzsocklog", "a");
va_list va;
if (f == NULL)
return;
va_start(va, message);
vfprintf(f, message, va);
fclose(f);
}
#endif
static TextList *mimetypes_list;
static struct table2 **UserMimeTypes;
static struct table2 *
loadMimeTypes(char *filename)
{
FILE *f;
char *d, *type;
int i, n;
Str tmp;
struct table2 *mtypes;
f = fopen(expandName(filename), "r");
if (f == NULL)
return NULL;
n = 0;
while (tmp = Strfgets(f), tmp->length > 0) {
d = tmp->ptr;
if (d[0] != '#') {
d = strtok(d, " \t\n\r");
if (d != NULL) {
d = strtok(NULL, " \t\n\r");
for (i = 0; d != NULL; i++)
d = strtok(NULL, " \t\n\r");
n += i;
}
}
}
fseek(f, 0, 0);
mtypes = New_N(struct table2, n + 1);
i = 0;
while (tmp = Strfgets(f), tmp->length > 0) {
d = tmp->ptr;
if (d[0] == '#')
continue;
type = strtok(d, " \t\n\r");
if (type == NULL)
continue;
while (1) {
d = strtok(NULL, " \t\n\r");
if (d == NULL)
break;
mtypes[i].item1 = Strnew_charp(d)->ptr;
mtypes[i].item2 = Strnew_charp(type)->ptr;
i++;
}
}
mtypes[i].item1 = NULL;
mtypes[i].item2 = NULL;
fclose(f);
return mtypes;
}
void
initMimeTypes()
{
int i;
TextListItem *tl;
if (non_null(mimetypes_files))
mimetypes_list = make_domain_list(mimetypes_files);
else
mimetypes_list = NULL;
if (mimetypes_list == NULL)
return;
UserMimeTypes = New_N(struct table2 *, mimetypes_list->nitem);
for (i = 0, tl = mimetypes_list->first; tl; i++, tl = tl->next)
UserMimeTypes[i] = loadMimeTypes(tl->ptr);
}
static char *
DefaultFile(int scheme)
{
switch (scheme) {
case SCM_HTTP:
#ifdef USE_SSL
case SCM_HTTPS:
#endif /* USE_SSL */
return allocStr(HTTP_DEFAULT_FILE, -1);
#ifdef USE_GOPHER
case SCM_GOPHER:
return allocStr("1", -1);
#endif /* USE_GOPHER */
case SCM_LOCAL:
case SCM_LOCAL_CGI:
case SCM_FTP:
return allocStr("/", -1);
}
return NULL;
}
static MySignalHandler
KeyAbort(SIGNAL_ARG)
{
LONGJMP(AbortLoading, 1);
}
#ifdef USE_SSL
SSL_CTX *ssl_ctx = NULL;
void
free_ssl_ctx()
{
if (ssl_ctx != NULL)
SSL_CTX_free(ssl_ctx);
}
#if SSLEAY_VERSION_NUMBER >= 0x00905100
#include <rand.h>
static void
init_PRNG()
{
char buffer[256];
const char *file;
long l;
if (RAND_status())
return;
if ((file = RAND_file_name(buffer, sizeof(buffer)))) {
#ifdef USE_EGD
if (RAND_egd(file) > 0)
return;
#endif
RAND_load_file(file, -1);
}
if (RAND_status())
goto seeded;
srand48((long)time(NULL));
while (!RAND_status()) {
l = lrand48();
RAND_seed((unsigned char *)&l, sizeof(long));
}
seeded:
if (file)
RAND_write_file(file);
}
#endif /* SSLEAY_VERSION_NUMBER >= 0x00905100 */
static SSL *
openSSLHandle(int sock)
{
SSL *handle;
char *emsg;
static char *old_ssl_forbid_method = NULL;
#ifdef USE_SSL_VERIFY
static int old_ssl_verify_server = -1;
#endif
if (!old_ssl_forbid_method || !ssl_forbid_method ||
strcmp(old_ssl_forbid_method, ssl_forbid_method)) {
old_ssl_forbid_method = ssl_forbid_method;
#ifdef USE_SSL_VERIFY
ssl_path_modified = 1;
#else
free_ssl_ctx();
ssl_ctx = NULL;
#endif
}
#ifdef USE_SSL_VERIFY
if (old_ssl_verify_server != ssl_verify_server) {
old_ssl_verify_server = ssl_verify_server;
ssl_path_modified = 1;
}
if (ssl_path_modified) {
free_ssl_ctx();
ssl_ctx = NULL;
ssl_path_modified = 0;
}
#endif /* defined(USE_SSL_VERIFY) */
if (ssl_ctx == NULL) {
int option;
#if SSLEAY_VERSION_NUMBER < 0x0800
ssl_ctx = SSL_CTX_new();
X509_set_default_verify_paths(ssl_ctx->cert);
#else /* SSLEAY_VERSION_NUMBER >= 0x0800 */
SSLeay_add_ssl_algorithms();
SSL_load_error_strings();
if (!(ssl_ctx = SSL_CTX_new(SSLv23_client_method())))
goto eend;
option = SSL_OP_ALL;
if (ssl_forbid_method) {
if (strchr(ssl_forbid_method, '2'))
option |= SSL_OP_NO_SSLv2;
if (strchr(ssl_forbid_method, '3'))
option |= SSL_OP_NO_SSLv3;
if (strchr(ssl_forbid_method, 't'))
option |= SSL_OP_NO_TLSv1;
if (strchr(ssl_forbid_method, 'T'))
option |= SSL_OP_NO_TLSv1;
}
SSL_CTX_set_options(ssl_ctx, option);
#ifdef USE_SSL_VERIFY
/* derived from openssl-0.9.5/apps/s_{client,cb}.c */
SSL_CTX_set_verify(ssl_ctx,
ssl_verify_server ? SSL_VERIFY_PEER :
SSL_VERIFY_NONE, NULL);
if (ssl_cert_file != NULL && *ssl_cert_file != '\0') {
int ng = 1;
if (SSL_CTX_use_certificate_file
(ssl_ctx, ssl_cert_file, SSL_FILETYPE_PEM) > 0) {
char *key_file = (ssl_key_file == NULL
|| *ssl_key_file ==
'\0') ? ssl_cert_file : ssl_key_file;
if (SSL_CTX_use_PrivateKey_file
(ssl_ctx, key_file, SSL_FILETYPE_PEM) > 0)
if (SSL_CTX_check_private_key(ssl_ctx))
ng = 0;
}
if (ng) {
free_ssl_ctx();
goto eend;
}
}
if (SSL_CTX_load_verify_locations(ssl_ctx, ssl_ca_file, ssl_ca_path))
#endif /* defined(USE_SSL_VERIFY) */
SSL_CTX_set_default_verify_paths(ssl_ctx);
#endif /* SSLEAY_VERSION_NUMBER >= 0x0800 */
/*** by inu
atexit(free_ssl_ctx);
*/
}
handle = SSL_new(ssl_ctx);
SSL_set_fd(handle, sock);
#if SSLEAY_VERSION_NUMBER >= 0x00905100
init_PRNG();
#endif /* SSLEAY_VERSION_NUMBER >= 0x00905100 */
if (SSL_connect(handle) <= 0)
goto eend;
return handle;
eend:
emsg =
Sprintf("SSL error: %s", ERR_error_string(ERR_get_error(), NULL))->ptr;
disp_err_message(emsg, FALSE);
return NULL;
}
static void
SSL_write_from_file(SSL * ssl, char *file)
{
FILE *fd;
int c;
char buf[1];
fd = fopen(file, "r");
if (fd != NULL) {
while ((c = fgetc(fd)) != EOF) {
buf[0] = c;
SSL_write(ssl, buf, 1);
}
fclose(fd);
}
}
#endif /* USE_SSL */
static void
write_from_file(int sock, char *file)
{
FILE *fd;
int c;
char buf[1];
fd = fopen(file, "r");
if (fd != NULL) {
while ((c = fgetc(fd)) != EOF) {
buf[0] = c;
write(sock, buf, 1);
}
fclose(fd);
}
}
ParsedURL *
baseURL(Buffer *buf)
{
if (buf->bufferprop & BP_NO_URL) {
/* no URL is defined for the buffer */
return NULL;
}
if (buf->baseURL != NULL) {
/* <BASE> tag is defined in the document */
return buf->baseURL;
}
else
return &buf->currentURL;
}
int
openSocket(char *const hostname,
char *remoteport_name, unsigned short remoteport_num)
{
volatile int sock = -1;
#ifdef INET6
int *af;
struct addrinfo hints, *res0, *res;
int error;
char *hname;
#else /* not INET6 */
struct sockaddr_in hostaddr;
struct hostent *entry;
struct protoent *proto;
unsigned short s_port;
int a1, a2, a3, a4;
unsigned long adr;
#endif /* not INET6 */
MySignalHandler(*volatile trap) (SIGNAL_ARG) = NULL;
if (fmInitialized) {
message(Sprintf("Opening socket...")->ptr, 0, 0);
refresh();
}
if (SETJMP(AbortLoading) != 0) {
#ifdef SOCK_DEBUG
sock_log("openSocket() failed. reason: user abort\n");
#endif
if (sock >= 0)
close(sock);
goto error;
}
trap = signal(SIGINT, KeyAbort);
if (fmInitialized)
term_cbreak();
if (hostname == NULL) {
#ifdef SOCK_DEBUG
sock_log("openSocket() failed. reason: Bad hostname \"%s\"\n",
hostname);
#endif
goto error;
}
#ifdef INET6
/* rfc2732 compliance */
hname = hostname;
if (hname != NULL && hname[0] == '[' && hname[strlen(hname) - 1] == ']') {
hname = allocStr(hostname + 1, -1);
hname[strlen(hname) - 1] = '\0';
if (strspn(hname, "0123456789abcdefABCDEF:.") != strlen(hname))
goto error;
}
for (af = ai_family_order_table[DNS_order];; af++) {
memset(&hints, 0, sizeof(hints));
hints.ai_family = *af;
hints.ai_socktype = SOCK_STREAM;
if (remoteport_num != 0) {
Str portbuf = Sprintf("%d", remoteport_num);
error = getaddrinfo(hname, portbuf->ptr, &hints, &res0);
}
else {
error = -1;
}
if (error && remoteport_name && remoteport_name[0] != '\0') {
/* try default port */
error = getaddrinfo(hname, remoteport_name, &hints, &res0);
}
if (error) {
if (*af == PF_UNSPEC) {
goto error;
}
/* try next ai family */
continue;
}
sock = -1;
for (res = res0; res; res = res->ai_next) {
sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (sock < 0) {
continue;
}
if (connect(sock, res->ai_addr, res->ai_addrlen) < 0) {
close(sock);
sock = -1;
continue;
}
break;
}
if (sock < 0) {
freeaddrinfo(res0);
if (*af == PF_UNSPEC) {
goto error;
}
/* try next ai family */
continue;
}
freeaddrinfo(res0);
break;
}
#else /* not INET6 */
s_port = htons(remoteport_num);
bzero((char *)&hostaddr, sizeof(struct sockaddr_in));
if ((proto = getprotobyname("tcp")) == NULL) {
/* protocol number of TCP is 6 */
proto = New(struct protoent);
proto->p_proto = 6;
}
if ((sock = socket(AF_INET, SOCK_STREAM, proto->p_proto)) < 0) {
#ifdef SOCK_DEBUG
sock_log("openSocket: socket() failed. reason: %s\n", strerror(errno));
#endif
goto error;
}
regexCompile("^[0-9][0-9]*\\.[0-9][0-9]*\\.[0-9][0-9]*\\.[0-9][0-9]*$", 0);
if (regexMatch(hostname, 0, 1)) {
sscanf(hostname, "%d.%d.%d.%d", &a1, &a2, &a3, &a4);
adr = htonl((a1 << 24) | (a2 << 16) | (a3 << 8) | a4);
bcopy((void *)&adr, (void *)&hostaddr.sin_addr, sizeof(long));
hostaddr.sin_family = AF_INET;
hostaddr.sin_port = s_port;
if (fmInitialized) {
message(Sprintf("Connecting to %s", hostname)->ptr, 0, 0);
refresh();
}
if (connect(sock, (struct sockaddr *)&hostaddr,
sizeof(struct sockaddr_in)) < 0) {
#ifdef SOCK_DEBUG
sock_log("openSocket: connect() failed. reason: %s\n",
strerror(errno));
#endif
goto error;
}
}
else {
char **h_addr_list;
int result = -1;
if (fmInitialized) {
message(Sprintf("Performing hostname lookup on %s", hostname)->ptr,
0, 0);
refresh();
}
if ((entry = gethostbyname(hostname)) == NULL) {
#ifdef SOCK_DEBUG
sock_log("openSocket: gethostbyname() failed. reason: %s\n",
strerror(errno));
#endif
goto error;
}
hostaddr.sin_family = AF_INET;
hostaddr.sin_port = s_port;
for (h_addr_list = entry->h_addr_list; *h_addr_list; h_addr_list++) {
bcopy((void *)h_addr_list[0], (void *)&hostaddr.sin_addr,
entry->h_length);
#ifdef SOCK_DEBUG
adr = ntohl(*(long *)&hostaddr.sin_addr);
sock_log("openSocket: connecting %d.%d.%d.%d\n",
(adr >> 24) & 0xff,
(adr >> 16) & 0xff, (adr >> 8) & 0xff, adr & 0xff);
#endif
if (fmInitialized) {
message(Sprintf("Connecting to %s", hostname)->ptr, 0, 0);
refresh();
}
if ((result = connect(sock, (struct sockaddr *)&hostaddr,
sizeof(struct sockaddr_in))) == 0) {
break;
}
#ifdef SOCK_DEBUG
else {
sock_log("openSocket: connect() failed. reason: %s\n",
strerror(errno));
}
#endif
}
if (result < 0) {
goto error;
}
}
#endif /* not INET6 */
if (fmInitialized)
term_raw();
signal(SIGINT, trap);
return sock;
error:
if (fmInitialized)
term_raw();
signal(SIGINT, trap);
return -1;
}
#define COPYPATH_SPC_ALLOW 0
#define COPYPATH_SPC_IGNORE 1
#define COPYPATH_SPC_REPLACE 2
static char *
copyPath(char *orgpath, int length, int option)
{
Str tmp = Strnew();
while (*orgpath && length != 0) {
if (IS_SPACE(*orgpath)) {
switch (option) {
case COPYPATH_SPC_ALLOW:
Strcat_char(tmp, *orgpath);
break;
case COPYPATH_SPC_IGNORE:
/* do nothing */
break;
case COPYPATH_SPC_REPLACE:
Strcat_charp(tmp, "%20");
break;
}
}
else
Strcat_char(tmp, *orgpath);
orgpath++;
length--;
}
return tmp->ptr;
}
void
parseURL(char *url, ParsedURL *p_url, ParsedURL *current)
{
char *p, *q;
Str tmp;
url = url_quote(url); /* quote 0x01-0x20, 0x7F-0xFF */
p = url;
p_url->scheme = SCM_MISSING;
p_url->port = 0;
p_url->user = NULL;
p_url->pass = NULL;
p_url->host = NULL;
p_url->is_nocache = 0;
p_url->file = NULL;
p_url->real_file = NULL;
p_url->query = NULL;
p_url->label = NULL;
if (*url == '#') { /* label only */
if (current)
copyParsedURL(p_url, current);
goto do_label;
}
#if defined( __EMX__ ) || defined( __CYGWIN__ )
if (!strncmp(url, "file://localhost/", 17)) {
p_url->scheme = SCM_LOCAL;
p += 17 - 1;
url += 17 - 1;
}
#endif
#ifdef SUPPORT_DOS_DRIVE_PREFIX
if (IS_ALPHA(*p) && (p[1] == ':' || p[1] == '|')) {
p_url->scheme = SCM_LOCAL;
goto analyze_file;
}
#endif /* SUPPORT_DOS_DRIVE_PREFIX */
/* search for scheme */
p_url->scheme = getURLScheme(&p);
if (p_url->scheme == SCM_MISSING) {
/* scheme part is not found in the url. This means either
* (a) the url is relative to the current or (b) the url
* denotes a filename (therefore the scheme is SCM_LOCAL).
*/
if (current) {
copyParsedURL(p_url, current);
if (p_url->scheme == SCM_LOCAL_CGI)
p_url->scheme = SCM_LOCAL;
/* label part and query part don't inherit */
p_url->label = NULL;
p_url->query = NULL;
}
else
p_url->scheme = SCM_LOCAL;
p = url;
if (!strncmp(p, "//", 2)) {
/* URL begins with // */
/* it means that 'scheme:' is abbreviated */
p += 2;
goto analyze_url;
}
/* the url doesn't begin with '//' */
goto analyze_file;
}
/* scheme part has been found */
/* get host and port */
if (p[0] != '/' || p[1] != '/') { /* scheme:foo or scheme:/foo */
p_url->host = NULL;
if (p_url->scheme != SCM_UNKNOWN)
p_url->port = DefaultPort[p_url->scheme];
else
p_url->port = 0;
goto analyze_file;
}
/* after here, p begins with // */
if (p_url->scheme == SCM_LOCAL) { /* file://foo */
#ifdef __EMX__
p += 2;
goto analyze_file;
#else
if (p[2] == '/' || p[2] == '~'
/* <A HREF="file:///foo">file:///foo</A> or <A HREF="file://~user">file://~user</A> */
#ifdef SUPPORT_DOS_DRIVE_PREFIX
|| (IS_ALPHA(p[2]) && (p[3] == ':' || p[3] == '|'))
/* <A HREF="file://DRIVE/foo">file://DRIVE/foo</A> */
#endif /* SUPPORT_DOS_DRIVE_PREFIX */
) {
p += 2;
goto analyze_file;
}
#endif /* __EMX__ */
}
p += 2; /* scheme://foo */
/* ^p is here */
analyze_url:
q = p;
while (*p && strchr(":/@?#", *p) == NULL) {
#ifdef INET6
if (*p == '[') { /* rfc2732 compliance */
char *p_colon = NULL;
do {
p++;
if ((p_colon == NULL) && (*p == ':'))
p_colon = p;
} while (*p && (IS_ALNUM(*p) || *p == ':' || *p == '.'));
if (*p == ']') {
p++;
break;
}
else if (p_colon) {
p = p_colon;
break;
}
}
#endif
p++;
}
switch (*p) {
case '\0':
/* scheme://host */
p_url->host = copyPath(q, -1, COPYPATH_SPC_IGNORE);
p_url->port = DefaultPort[p_url->scheme];
p_url->file = DefaultFile(p_url->scheme);
return;
case ':':
/* scheme://user:pass@host or
* scheme://host:port
*/
p_url->host = copyPath(q, p - q, COPYPATH_SPC_IGNORE);
q = ++p;
while (*p && strchr("@/?#", *p) == NULL)
p++;
if (*p == '@') {
/* scheme://user:pass@... */
p_url->pass = copyPath(q, p - q, COPYPATH_SPC_ALLOW);
q = ++p;
p_url->user = p_url->host;
p_url->host = NULL;
goto analyze_url;
}
/* scheme://host:port/ */
tmp = Strnew_charp_n(q, p - q);
p_url->port = atoi(tmp->ptr);
if (*p == '\0') {
/* scheme://user@host:port */
/* scheme://user:pass@host:port */
p_url->file = DefaultFile(p_url->scheme);
p_url->label = NULL;
return;
}
/* *p is one of ['/', '?', '#'] */
break;
case '@':
/* scheme://user@... */
p_url->user = copyPath(q, p - q, COPYPATH_SPC_IGNORE);
q = ++p;
goto analyze_url;
case '/':
case '?':
case '#':
p_url->host = copyPath(q, p - q, COPYPATH_SPC_IGNORE);
p_url->port = DefaultPort[p_url->scheme];
break;
}
analyze_file:
#ifndef SUPPORT_NETBIOS_SHARE
if (p_url->scheme == SCM_LOCAL && p_url->user == NULL &&
p_url->host != NULL && strcmp(p_url->host, "localhost")) {
/*
* In the environments other than CYGWIN, a URL like
* file://host/file is regarded as ftp://host/file.
* On the other hand, file://host/file on CYGWIN is
* regarded as local access to the file //host/file.
* `host' is a netbios-hostname, drive, or any other
* name; It is CYGWIN system call who interprets that.
*/
p_url->scheme = SCM_FTP; /* ftp://host/... */
if (p_url->port == 0)
p_url->port = DefaultPort[SCM_FTP];
}
#endif
#ifdef SUPPORT_DOS_DRIVE_PREFIX
if (p_url->scheme == SCM_LOCAL) {
q = p;
if (*q == '/')
q++;
if (IS_ALPHA(q[0]) && (q[1] == ':' || q[1] == '|')) {
if (q[1] == '|') {
p = allocStr(q, -1);
p[1] = ':';
}
else
p = q;
}
}
#endif
q = p;
#ifdef USE_GOPHER
if (p_url->scheme == SCM_GOPHER) {
if (*q == '/')
q++;
if (*q && q[0] != '/' && q[1] != '/' && q[2] == '/')
q++;
}
#endif /* USE_GOPHER */
if (*p == '/')
p++;
if (*p == '\0') { /* scheme://host[:port]/ */
p_url->file = DefaultFile(p_url->scheme);
p_url->label = NULL;
return;
}
#ifdef USE_GOPHER
if (p_url->scheme == SCM_GOPHER && *p == 'R') {
p++;
tmp = Strnew();
Strcat_char(tmp, *(p++));
while (*p && *p != '/')
p++;
Strcat_charp(tmp, p);
while (*p)
p++;
p_url->file = copyPath(tmp->ptr, -1, COPYPATH_SPC_IGNORE);
}
else
#endif /* USE_GOPHER */
{
char *cgi = strchr(p, '?');
again:
while (*p && *p != '#' && p != cgi)
p++;
if (*p == '#' && p_url->scheme == SCM_LOCAL) {
/*
* According to RFC2396, # means the beginning of
* URI-reference, and # should be escaped. But,
* if the scheme is SCM_LOCAL, the special
* treatment will apply to # for convinience.
*/
if (p > q && *(p - 1) == '/' && (cgi == NULL || p < cgi)) {
/*
* # comes as the first character of the file name
* that means, # is not a label but a part of the file
* name.
*/
p++;
goto again;
}
else if (*(p + 1) == '\0') {
/*
* # comes as the last character of the file name that
* means, # is not a label but a part of the file
* name.
*/
p++;
}
}
if (p_url->scheme == SCM_LOCAL || p_url->scheme == SCM_MISSING)
p_url->file = copyPath(q, p - q, COPYPATH_SPC_ALLOW);
else
p_url->file = copyPath(q, p - q, COPYPATH_SPC_IGNORE);
}
if (*p == '?') {
q = ++p;
while (*p && *p != '#')
p++;
p_url->query = copyPath(q, p - q, COPYPATH_SPC_ALLOW);
}
do_label:
if (p_url->scheme == SCM_MISSING) {
p_url->scheme = SCM_LOCAL;
p_url->file = allocStr(p, -1);
p_url->label = NULL;
}
else if (*p == '#')
p_url->label = allocStr(p + 1, -1);
else
p_url->label = NULL;
}
#define initParsedURL(p) bzero(p,sizeof(ParsedURL))
#define ALLOC_STR(s) ((s)==NULL?NULL:allocStr(s,-1))
void
copyParsedURL(ParsedURL *p, ParsedURL *q)
{
p->scheme = q->scheme;
p->port = q->port;
p->is_nocache = q->is_nocache;
p->user = ALLOC_STR(q->user);
p->pass = ALLOC_STR(q->pass);
p->host = ALLOC_STR(q->host);
p->file = ALLOC_STR(q->file);
p->real_file = ALLOC_STR(q->real_file);
p->label = ALLOC_STR(q->label);
p->query = ALLOC_STR(q->query);
}
void
parseURL2(char *url, ParsedURL *pu, ParsedURL *current)
{
char *p;
Str tmp;
int relative_uri = FALSE;
parseURL(url, pu, current);
if (pu->scheme == SCM_MAILTO)
return;
if (pu->scheme == SCM_LOCAL)
pu->file = expandName(pu->file);
if (current && pu->scheme == current->scheme) {
/* Copy omitted element from the current URL */
if (pu->user == NULL) {
pu->user = current->user;
}
if (pu->pass == NULL) {
pu->pass = current->pass;
}
if (pu->host == NULL) {
pu->host = current->host;
}
if (pu->file) {
if (
#ifdef USE_GOPHER
pu->scheme != SCM_GOPHER &&
#endif /* USE_GOPHER */
#ifdef USE_NNTP
pu->scheme != SCM_NEWS &&
#endif /* USE_NNTP */
pu->file[0] != '/'
#ifdef SUPPORT_DOS_DRIVE_PREFIX
&& !(pu->scheme == SCM_LOCAL && IS_ALPHA(pu->file[0])
&& pu->file[1] == ':')
#endif
) {
/* file is relative [process 1] */
p = pu->file;
if (current->file) {
tmp = Strnew_charp(current->file);
while (tmp->length > 0) {
if (Strlastchar(tmp) == '/')
break;
Strshrink(tmp, 1);
}
Strcat_charp(tmp, p);
pu->file = tmp->ptr;
relative_uri = TRUE;
}
}
#ifdef USE_GOPHER
else if (pu->scheme == SCM_GOPHER && pu->file[0] == '/') {
p = pu->file;
pu->file = allocStr(p + 1, -1);
}
#endif /* USE_GOPHER */
}
else if (pu->label) {
/* pu has only label */
pu->file = current->file;
}
/* comment: query part need not to be completed
* from the current URL. */
}
if (pu->file) {
#ifdef __EMX__
if (pu->scheme == SCM_LOCAL) {
if (strncmp(pu->file, "/$LIB/", 6)) {
char abs[_MAX_PATH];
_abspath(abs, pu->file, _MAX_PATH);
pu->file = file_quote(cleanupName(abs));
}
}
#else
if (pu->scheme == SCM_LOCAL && pu->file[0] != '/' &&
#ifdef SUPPORT_DOS_DRIVE_PREFIX /* for 'drive:' */
!(IS_ALPHA(pu->file[0]) && pu->file[1] == ':') &&
#endif
strcmp(pu->file, "-")) {
/* local file, relative path */
tmp = Strnew_charp(CurrentDir);
if (Strlastchar(tmp) != '/')
Strcat_char(tmp, '/');
Strcat_charp(tmp, pu->file);
pu->file = file_quote(cleanupName(tmp->ptr));
}
#endif
else if (pu->scheme == SCM_HTTP
#ifdef USE_SSL
|| pu->scheme == SCM_HTTPS
#endif
) {
if (relative_uri) {
/* In this case, pu->file is created by [process 1] above.
* pu->file may contain relative path (for example,
* "/foo/../bar/./baz.html"), cleanupName() must be applied.
* When the entire abs_path is given, it still may contain
* elements like `//', `..' or `.' in the pu->file. It is
* server's responsibility to canonicalize such path.
*/
pu->file = cleanupName(pu->file);
}
}
else if (
#ifdef USE_GOPHER
pu->scheme != SCM_GOPHER &&
#endif /* USE_GOPHER */
#ifdef USE_NNTP
pu->scheme != SCM_NEWS &&
#endif /* USE_NNTP */
pu->file[0] == '/') {
/*
* this happens on the following conditions:
* (1) ftp scheme (2) local, looks like absolute path.
* In both case, there must be no side effect with
* cleanupName(). (I hope so...)
*/
pu->file = cleanupName(pu->file);
}
if (pu->scheme == SCM_LOCAL) {
#ifdef SUPPORT_NETBIOS_SHARE
if (pu->host && strcmp(pu->host, "localhost") != 0) {
Str tmp = Strnew_charp("//");
Strcat_m_charp(tmp, pu->host,
cleanupName(file_unquote(pu->file)), NULL);
pu->real_file = tmp->ptr;
}
else
#endif
pu->real_file = cleanupName(file_unquote(pu->file));
}
}
}
static Str
_parsedURL2Str(ParsedURL *pu, int pass)
{
Str tmp;
static char *scheme_str[] = {
"http", "gopher", "ftp", "ftp", "file", "file", "exec", "nntp", "news",
"mailto",
#ifdef USE_SSL
"https",
#endif /* USE_SSL */
};
if (pu->scheme == SCM_UNKNOWN || pu->scheme == SCM_MISSING) {
return Strnew_charp("???");
}
if (pu->host == NULL && pu->file == NULL && pu->label != NULL) {
/* local label */
return Sprintf("#%s", pu->label);
}
if (pu->scheme == SCM_LOCAL && !strcmp(pu->file, "-")) {
tmp = Strnew_charp("-");
if (pu->label) {
Strcat_char(tmp, '#');
Strcat_charp(tmp, pu->label);
}
return tmp;
}
tmp = Strnew_charp(scheme_str[pu->scheme]);
Strcat_char(tmp, ':');
if (pu->scheme == SCM_MAILTO) {
Strcat_charp(tmp, pu->file);
return tmp;
}
#ifdef USE_NNTP
if (pu->scheme != SCM_NEWS)
#endif /* USE_NNTP */
{
Strcat_charp(tmp, "//");
}
if (pu->user) {
Strcat_charp(tmp, pu->user);
if (pass && pu->pass) {
Strcat_char(tmp, ':');
Strcat_charp(tmp, pu->pass);
}
Strcat_char(tmp, '@');
}
if (pu->host) {
Strcat_charp(tmp, pu->host);
if (pu->port != DefaultPort[pu->scheme]) {
Strcat_char(tmp, ':');
Strcat(tmp, Sprintf("%d", pu->port));
}
}
if (
#ifdef USE_NNTP
pu->scheme != SCM_NEWS &&
#endif /* USE_NNTP */
(pu->file == NULL || (pu->file[0] != '/'
#ifdef SUPPORT_DOS_DRIVE_PREFIX
&& !(IS_ALPHA(pu->file[0])
&& pu->file[1] == ':'
&& pu->host == NULL)
#endif
)))
Strcat_char(tmp, '/');
Strcat_charp(tmp, pu->file);
if (pu->query) {
Strcat_char(tmp, '?');
Strcat_charp(tmp, pu->query);
}
if (pu->label) {
Strcat_char(tmp, '#');
Strcat_charp(tmp, pu->label);
}
return tmp;
}
Str
parsedURL2Str(ParsedURL *pu)
{
return _parsedURL2Str(pu, FALSE);
}
int
getURLScheme(char **url)
{
char *p = *url, *q;
int i;
int scheme = SCM_MISSING;
while (*p && (IS_ALPHA(*p) || *p == '.' || *p == '+' || *p == '-'))
p++;
if (*p == ':') { /* scheme found */
scheme = SCM_UNKNOWN;
for (i = 0; (q = schemetable[i].cmdname) != NULL; i++) {
int len = strlen(q);
if (!strncasecmp(q, *url, len) && (*url)[len] == ':') {
scheme = schemetable[i].cmd;
*url = p + 1;
break;
}
}
}
return scheme;
}
static char *
otherinfo(ParsedURL *target, ParsedURL *current, char *referer)
{
Str s = Strnew();
Strcat_charp(s, "User-Agent: ");
if (UserAgent == NULL || *UserAgent == '\0')
Strcat_charp(s, w3m_version);
else
Strcat_charp(s, UserAgent);
Strcat_charp(s, "\r\n");
Strcat_m_charp(s, "Accept: ", AcceptMedia, "\r\n", NULL);
Strcat_m_charp(s, "Accept-Encoding: ", AcceptEncoding, "\r\n", NULL);
Strcat_m_charp(s, "Accept-Language: ", AcceptLang, "\r\n", NULL);
if (target->host) {
Strcat_charp(s, "Host: ");
Strcat_charp(s, target->host);
if (target->port != DefaultPort[target->scheme])
Strcat(s, Sprintf(":%d", target->port));
Strcat_charp(s, "\r\n");
}
if (target->is_nocache || NoCache) {
Strcat_charp(s, "Pragma: no-cache\r\n");
Strcat_charp(s, "Cache-control: no-cache\r\n");
}
if (!NoSendReferer) {
if (referer == NULL && current && current->scheme != SCM_LOCAL &&
(current->scheme != SCM_FTP ||
(current->user == NULL && current->pass == NULL))) {
Strcat_charp(s, "Referer: ");
Strcat(s, parsedURL2Str(current));
Strcat_charp(s, "\r\n");
}
else if (referer != NULL && referer != NO_REFERER) {
Strcat_charp(s, "Referer: ");
Strcat_charp(s, referer);
Strcat_charp(s, "\r\n");
}
}
return s->ptr;
}
static Str
HTTPrequest(ParsedURL *pu, ParsedURL *current, HRequest *hr, TextList *extra)
{
Str tmp;
TextListItem *i;
#ifdef USE_COOKIE
Str cookie;
#endif /* USE_COOKIE */
switch (hr->command) {
case HR_COMMAND_CONNECT:
tmp = Strnew_charp("CONNECT ");
break;
case HR_COMMAND_POST:
tmp = Strnew_charp("POST ");
break;
case HR_COMMAND_HEAD:
tmp = Strnew_charp("HEAD ");
break;
case HR_COMMAND_GET:
default:
tmp = Strnew_charp("GET ");
}
if (hr->command == HR_COMMAND_CONNECT) {
Strcat_charp(tmp, pu->host);
Strcat(tmp, Sprintf(":%d", pu->port));
}
else if (hr->flag & HR_FLAG_LOCAL) {
Strcat_charp(tmp, pu->file);
if (pu->query) {
Strcat_char(tmp, '?');
Strcat_charp(tmp, pu->query);
}
}
else {
Strcat(tmp, _parsedURL2Str(pu, TRUE));
}
Strcat_charp(tmp, " HTTP/1.0\r\n");
if (hr->referer == NO_REFERER)
Strcat_charp(tmp, otherinfo(pu, NULL, NULL));
else
Strcat_charp(tmp, otherinfo(pu, current, hr->referer));
if (extra != NULL)
for (i = extra->first; i != NULL; i = i->next)
Strcat_charp(tmp, i->ptr);
#ifdef USE_COOKIE
if (hr->command != HR_COMMAND_CONNECT &&
use_cookie && (cookie = find_cookie(pu))) {
Strcat_charp(tmp, "Cookie: ");
Strcat(tmp, cookie);
Strcat_charp(tmp, "\r\n");
/* [DRAFT 12] s. 10.1 */
if (cookie->ptr[0] != '$')
Strcat_charp(tmp, "Cookie2: $Version=\"1\"\r\n");
}
#endif /* USE_COOKIE */
if (hr->command == HR_COMMAND_POST) {
if (hr->request->enctype == FORM_ENCTYPE_MULTIPART) {
Strcat_charp(tmp, "Content-type: multipart/form-data; boundary=");
Strcat_charp(tmp, hr->request->boundary);
Strcat_charp(tmp, "\r\n");
Strcat(tmp,
Sprintf("Content-length: %ld\r\n", hr->request->length));
Strcat_charp(tmp, "\r\n");
}
else {
if (!override_content_type) {
Strcat_charp(tmp,
"Content-type: application/x-www-form-urlencoded\r\n");
}
Strcat(tmp,
Sprintf("Content-length: %ld\r\n", hr->request->length));
if (header_string)
Strcat(tmp, header_string);
Strcat_charp(tmp, "\r\n");
Strcat_charp_n(tmp, hr->request->body, hr->request->length);
Strcat_charp(tmp, "\r\n");
}
}
else {
if (header_string)
Strcat(tmp, header_string);
Strcat_charp(tmp, "\r\n");
}
#ifdef DEBUG
fprintf(stderr, "HTTPrequest: [ %s ]\n\n", tmp->ptr);
#endif /* DEBUG */
return tmp;
}
void
init_stream(URLFile *uf, int scheme, InputStream stream)
{
uf->stream = stream;
uf->scheme = scheme;
uf->encoding = ENC_7BIT;
uf->is_cgi = FALSE;
uf->compression = 0;
uf->guess_type = NULL;
uf->ext = NULL;
}
static InputStream
openFTPStream(ParsedURL *pu)
{
return newFileStream(openFTP(pu), closeFTP);
}
URLFile
openURL(char *url, ParsedURL *pu, ParsedURL *current,
URLOption *option, FormList *request, TextList *extra_header,
URLFile *ouf, unsigned char *status)
{
Str tmp;
int i, sock, scheme;
char *p, *q, *u;
URLFile uf;
HRequest hr;
#ifdef USE_SSL
SSL *sslh = NULL;
#endif /* USE_SSL */
#ifdef USE_NNTP
FILE *fw;
char *r;
InputStream stream;
#endif /* USE_NNTP */
int extlen = strlen(CGI_EXTENSION);
if (ouf) {
uf = *ouf;
}
else {
init_stream(&uf, SCM_MISSING, NULL);
}
u = url;
scheme = getURLScheme(&u);
if (current == NULL && scheme == SCM_MISSING && !ArgvIsURL)
u = file_to_url(url); /* force to local file */
else
u = url;
retry:
parseURL2(u, pu, current);
if (pu->scheme == SCM_LOCAL && pu->file == NULL) {
if (pu->label != NULL) {
/* #hogege is not a label but a filename */
Str tmp2 = Strnew_charp("#");
Strcat_charp(tmp2, pu->label);
pu->file = tmp2->ptr;
pu->real_file = cleanupName(file_unquote(pu->file));
pu->label = NULL;
}
else {
/* given URL must be null string */
#ifdef SOCK_DEBUG
sock_log("given URL must be null string\n");
#endif
return uf;
}
}
uf.scheme = pu->scheme;
pu->is_nocache = (option->flag & RG_NOCACHE);
uf.ext = filename_extension(pu->file, 1);
hr.command = HR_COMMAND_GET;
hr.flag = 0;
hr.referer = option->referer;
hr.request = request;
switch (pu->scheme) {
case SCM_LOCAL:
case SCM_LOCAL_CGI:
if (request && request->body) {
/* local CGI: POST */
if ((q = strchr(pu->file, '?')) != NULL) {
p = Strnew_charp_n(pu->file, (int)(q - pu->file))->ptr;
pu->real_file = cleanupName(file_unquote(p));
q++;
}
uf.stream = newFileStream(localcgi_post(pu->real_file,
pu->query,
request,
option->referer),
(void (*)())pclose);
if (uf.stream == NULL)
goto ordinary_local_file;
uf.is_cgi = TRUE;
uf.scheme = pu->scheme = SCM_LOCAL_CGI;
}
else if (pu->query != NULL) {
/* lodal CGI: GET */
uf.stream = newFileStream(localcgi_get(pu->real_file, pu->query,
option->referer),
(void (*)())pclose);
if (uf.stream == NULL) {
goto ordinary_local_file;
}
uf.is_cgi = TRUE;
uf.scheme = pu->scheme = SCM_LOCAL_CGI;
}
else if ((i = strlen(pu->file)) > extlen &&
!strncmp(pu->file + i - extlen, CGI_EXTENSION, extlen)) {
/* lodal CGI: GET */
uf.stream = newFileStream(localcgi_get(pu->real_file, NULL,
option->referer),
(void (*)())pclose);
if (uf.stream == NULL)
goto ordinary_local_file;
uf.is_cgi = TRUE;
uf.scheme = pu->scheme = SCM_LOCAL_CGI;
}
else {
ordinary_local_file:
examineFile(pu->real_file, &uf);
}
if (uf.stream == NULL) {
if (dir_exist(pu->real_file)) {
add_index_file(pu, &uf);
if (uf.stream == NULL)
return uf;
}
else if (document_root != NULL) {
tmp = Strnew_charp(document_root);
if (Strlastchar(tmp) != '/' && pu->file[0] != '/')
Strcat_char(tmp, '/');
Strcat_charp(tmp, pu->file);
p = cleanupName(tmp->ptr);
q = cleanupName(file_unquote(p));
if (dir_exist(q)) {
pu->file = p;
pu->real_file = q;
add_index_file(pu, &uf);
if (uf.stream == NULL) {
return uf;
}
}
else {
examineFile(q, &uf);
if (uf.stream) {
pu->file = p;
pu->real_file = q;
}
}
}
}
if (uf.stream == NULL && retryAsHttp && url[0] != '/') {
if (scheme == SCM_MISSING || scheme == SCM_UNKNOWN) {
/* retry it as "http://" */
u = Strnew_m_charp("http://", url, NULL)->ptr;
goto retry;
}
}
return uf;
case SCM_FTP:
if (pu->file == NULL)
pu->file = allocStr("/", -1);
if (non_null(FTP_proxy) &&
!Do_not_use_proxy &&
pu->host != NULL && !check_no_proxy(pu->host)) {
sock = openSocket(FTP_proxy_parsed.host,
schemetable[FTP_proxy_parsed.scheme].cmdname,
FTP_proxy_parsed.port);
if (sock < 0)
return uf;
uf.scheme = SCM_HTTP;
tmp = HTTPrequest(pu, current, &hr, extra_header);
write(sock, tmp->ptr, tmp->length);
}
else {
uf.stream = openFTPStream(pu);
uf.scheme = pu->scheme;
return uf;
}
break;
case SCM_HTTP:
#ifdef USE_SSL
case SCM_HTTPS:
#endif /* USE_SSL */
if (pu->file == NULL)
pu->file = allocStr("/", -1);
if (request && request->method == FORM_METHOD_POST && request->body)
hr.command = HR_COMMAND_POST;
if (request && request->method == FORM_METHOD_HEAD)
hr.command = HR_COMMAND_HEAD;
if (non_null(HTTP_proxy) &&
!Do_not_use_proxy &&
pu->host != NULL && !check_no_proxy(pu->host)) {
char *save_label;
#ifdef USE_SSL
if (pu->scheme == SCM_HTTPS && *status == HTST_CONNECT) {
sock = ssl_socket_of(ouf->stream);
if (!(sslh = openSSLHandle(sock))) {
*status = HTST_MISSING;
return uf;
}
}
else {
sock = openSocket(HTTP_proxy_parsed.host,
schemetable[HTTP_proxy_parsed.scheme].
cmdname, HTTP_proxy_parsed.port);
sslh = NULL;
}
#else
sock = openSocket(HTTP_proxy_parsed.host,
schemetable[HTTP_proxy_parsed.scheme].cmdname,
HTTP_proxy_parsed.port);
#endif
if (sock < 0) {
#ifdef SOCK_DEBUG
sock_log("Can't open socket\n");
#endif
return uf;
}
save_label = pu->label;
pu->label = NULL;
#ifdef USE_SSL
if (pu->scheme == SCM_HTTPS) {
if (*status == HTST_NORMAL) {
hr.command = HR_COMMAND_CONNECT;
tmp = HTTPrequest(pu, current, &hr, NULL);
*status = HTST_CONNECT;
}
else {
hr.flag |= HR_FLAG_LOCAL;
tmp = HTTPrequest(pu, current, &hr, extra_header);
*status = HTST_NORMAL;
}
}
else
#endif /* USE_SSL */
{
tmp = HTTPrequest(pu, current, &hr, extra_header);
*status = HTST_NORMAL;
pu->label = save_label;
}
}
else {
sock = openSocket(pu->host,
schemetable[pu->scheme].cmdname, pu->port);
if (sock < 0) {
*status = HTST_MISSING;
return uf;
}
#ifdef USE_SSL
if (pu->scheme == SCM_HTTPS) {
if (!(sslh = openSSLHandle(sock))) {
*status = HTST_MISSING;
return uf;
}
}
#endif /* USE_SSL */
hr.flag |= HR_FLAG_LOCAL;
tmp = HTTPrequest(pu, current, &hr, extra_header);
*status = HTST_NORMAL;
}
#ifdef USE_SSL
if (pu->scheme == SCM_HTTPS) {
uf.stream = newSSLStream(sslh, sock);
if (sslh)
SSL_write(sslh, tmp->ptr, tmp->length);
else
write(sock, tmp->ptr, tmp->length);
if (hr.command == HR_COMMAND_POST &&
request->enctype == FORM_ENCTYPE_MULTIPART) {
if (sslh)
SSL_write_from_file(sslh, request->body);
else
write_from_file(sock, request->body);
}
return uf;
}
else
#endif /* USE_SSL */
{
write(sock, tmp->ptr, tmp->length);
#ifdef HTTP_DEBUG
{
FILE *ff = fopen("zzrequest", "a");
fwrite(tmp->ptr, sizeof(char), tmp->length, ff);
fclose(ff);
}
#endif /* HTTP_DEBUG */
if (hr.command == HR_COMMAND_POST &&
request->enctype == FORM_ENCTYPE_MULTIPART)
write_from_file(sock, request->body);
}
break;
#ifdef USE_GOPHER
case SCM_GOPHER:
if (non_null(GOPHER_proxy) &&
!Do_not_use_proxy &&
pu->host != NULL && !check_no_proxy(pu->host)) {
sock = openSocket(GOPHER_proxy_parsed.host,
schemetable[GOPHER_proxy_parsed.scheme].cmdname,
GOPHER_proxy_parsed.port);
if (sock < 0)
return uf;
uf.scheme = SCM_HTTP;
tmp = HTTPrequest(pu, current, &hr, extra_header);
}
else {
sock = openSocket(pu->host,
schemetable[pu->scheme].cmdname, pu->port);
if (sock < 0)
return uf;
if (pu->file == NULL)
pu->file = "1";
tmp = Strnew_charp(pu->file);
Strcat_char(tmp, '\n');
}
write(sock, tmp->ptr, tmp->length);
break;
#endif /* USE_GOPHER */
#ifdef USE_NNTP
case SCM_NNTP:
/* nntp://<host>:<port>/<newsgroup-name>/<article-number> */
case SCM_NEWS:
if (pu->scheme == SCM_NNTP) {
p = pu->host;
}
else {
p = getenv("NNTPSERVER");
}
r = getenv("NNTPMODE");
if (p == NULL)
return uf;
sock = openSocket(p, "nntp", pu->port);
if (sock < 0)
return uf;
stream = newInputStream(sock);
fw = fdopen(sock, "wb");
if (stream == NULL || fw == NULL)
return uf;
tmp = StrISgets(stream);
if (tmp->length == 0)
goto nntp_error;
sscanf(tmp->ptr, "%d", &i);
if (i != 200 && i != 201)
goto nntp_error;
if (r && *r != '\0') {
fprintf(fw, "MODE %s\r\n", r);
fflush(fw);
tmp = StrISgets(stream);
if (tmp->length == 0)
goto nntp_error;
sscanf(tmp->ptr, "%d", &i);
if (i != 200 && i != 201)
goto nntp_error;
}
if (pu->scheme == SCM_NNTP) {
char *group;
if (pu->file == NULL || *pu->file == '\0')
goto nntp_error;
/* first char of pu->file is '/' */
group = url_unquote(Strnew_charp(pu->file + 1)->ptr);
p = strchr(group, '/');
if (p == NULL)
goto nntp_error;
*p++ = '\0';
fprintf(fw, "GROUP %s\r\n", group);
fflush(fw);
tmp = StrISgets(stream);
if (tmp->length == 0) {
goto nntp_error;
}
sscanf(tmp->ptr, "%d", &i);
if (i != 211)
goto nntp_error;
fprintf(fw, "ARTICLE %s\r\n", p);
}
else {
fprintf(fw, "ARTICLE <%s>\r\n", url_unquote(pu->file));
}
fflush(fw);
tmp = StrISgets(stream);
if (tmp->length == 0)
goto nntp_error;
sscanf(tmp->ptr, "%d", &i);
if (i != 220)
goto nntp_error;
uf.scheme = SCM_NEWS; /* XXX */
uf.stream = stream;
return uf;
nntp_error:
ISclose(stream);
fclose(fw);
return uf;
#endif /* USE_NNTP */
case SCM_UNKNOWN:
default:
return uf;
}
uf.stream = newInputStream(sock);
return uf;
}
/* add index_file if exists */
static void
add_index_file(ParsedURL *pu, URLFile *uf)
{
char *p, *q;
if (index_file == NULL || index_file[0] == '\0') {
uf->stream = NULL;
return;
}
p = Strnew_m_charp(pu->file, "/", file_quote(index_file), NULL)->ptr;
p = cleanupName(p);
q = cleanupName(file_unquote(p));
examineFile(q, uf);
if (uf->stream == NULL)
return;
pu->file = p;
pu->real_file = q;
return;
}
static char *
guessContentTypeFromTable(struct table2 *table, char *filename)
{
char *p;
if (table == NULL)
return NULL;
p = &filename[strlen(filename) - 1];
while (filename < p && *p != '.')
p--;
if (p == filename)
return NULL;
p++;
while (table->item1) {
if (!strcmp(p, table->item1))
return table->item2;
table++;
}
return NULL;
}
char *
guessContentType(char *filename)
{
char *ret;
int i;
if (filename == NULL)
return NULL;
if (mimetypes_list == NULL)
goto no_user_mimetypes;
for (i = 0; i < mimetypes_list->nitem; i++) {
if ((ret =
guessContentTypeFromTable(UserMimeTypes[i], filename)) != NULL)
return ret;
}
no_user_mimetypes:
return guessContentTypeFromTable(DefaultGuess, filename);
}
TextList *
make_domain_list(char *domain_list)
{
char *p;
Str tmp;
TextList *domains = NULL;
p = domain_list;
tmp = Strnew_size(64);
while (*p) {
while (*p && IS_SPACE(*p))
p++;
Strclear(tmp);
while (*p && !IS_SPACE(*p) && *p != ',')
Strcat_char(tmp, *p++);
if (tmp->length > 0) {
if (domains == NULL)
domains = newTextList();
pushText(domains, tmp->ptr);
}
while (*p && IS_SPACE(*p))
p++;
if (*p == ',')
p++;
}
return domains;
}
static int
domain_match(char *pat, char *domain)
{
if (domain == NULL)
return 0;
if (*pat == '.')
pat++;
for (;;) {
if (!strcasecmp(pat, domain))
return 1;
domain = strchr(domain, '.');
if (domain == NULL)
return 0;
domain++;
}
}
int
check_no_proxy(char *domain)
{
TextListItem *tl;
if (NO_proxy_domains == NULL || NO_proxy_domains->nitem == 0 ||
domain == NULL)
return 0;
for (tl = NO_proxy_domains->first; tl != NULL; tl = tl->next) {
if (domain_match(tl->ptr, domain))
return 1;
}
if (!NOproxy_netaddr) {
return 0;
}
/*
* to check noproxy by network addr
*/
{
#ifndef INET6
struct hostent *he;
int n;
unsigned char **h_addr_list;
char addr[4 * 16], buf[5];
he = gethostbyname(domain);
if (!he)
return (0);
for (h_addr_list = (unsigned char **)he->h_addr_list; *h_addr_list;
h_addr_list++) {
sprintf(addr, "%d", h_addr_list[0][0]);
for (n = 1; n < he->h_length; n++) {
sprintf(buf, ".%d", h_addr_list[0][n]);
strcat(addr, buf);
}
for (tl = NO_proxy_domains->first; tl != NULL; tl = tl->next) {
if (strncmp(tl->ptr, addr, strlen(tl->ptr)) == 0)
return (1);
}
}
#else /* INET6 */
int error;
struct addrinfo hints;
struct addrinfo *res, *res0;
char addr[4 * 16];
int *af;
for (af = ai_family_order_table[DNS_order];; af++) {
memset(&hints, 0, sizeof(hints));
hints.ai_family = *af;
error = getaddrinfo(domain, NULL, &hints, &res0);
if (error) {
if (*af == PF_UNSPEC) {
break;
}
/* try next */
continue;
}
for (res = res0; res != NULL; res = res->ai_next) {
switch (res->ai_family) {
case AF_INET:
inet_ntop(AF_INET,
&((struct sockaddr_in *)res->ai_addr)->sin_addr,
addr, sizeof(addr));
break;
case AF_INET6:
inet_ntop(AF_INET6,
&((struct sockaddr_in6 *)res->ai_addr)->
sin6_addr, addr, sizeof(addr));
break;
default:
/* unknown */
continue;
}
for (tl = NO_proxy_domains->first; tl != NULL; tl = tl->next) {
if (strncmp(tl->ptr, addr, strlen(tl->ptr)) == 0) {
freeaddrinfo(res0);
return 1;
}
}
}
freeaddrinfo(res0);
if (*af == PF_UNSPEC) {
break;
}
}
#endif /* INET6 */
}
return 0;
}
char *
filename_extension(char *path, int is_url)
{
char *last_dot = "", *p = path;
int i;
if (path == NULL)
return last_dot;
if (*p == '.')
p++;
for (; *p; p++) {
if (*p == '.') {
last_dot = p;
}
else if (is_url && *p == '?')
break;
}
if (*last_dot == '.') {
for (i = 1; last_dot[i] && i < 8; i++) {
if (is_url && !IS_ALNUM(last_dot[i]))
break;
}
return allocStr(last_dot, i);
}
else
return last_dot;
}
Reference in New Issue View Git Blame Copy Permalink