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Merge pull request #4810 from akallabeth/no_proxy_support

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No proxy support
This commit is contained in:
Martin Fleisz 2018-08-24 11:41:58 +02:00 committed by GitHub
commit 0fb19d04be
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 118 additions and 10 deletions
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11
client/common/cmdline.c
View File

@ -1875,14 +1875,13 @@ int freerdp_client_settings_parse_command_line_arguments(rdpSettings* settings,
{
*p = '\0';
if (!strcmp("http", arg->Value))
{
if (_stricmp("no_proxy", arg->Value) == 0)
settings->ProxyType = PROXY_TYPE_IGNORE;
if (_stricmp("http", arg->Value) == 0)
settings->ProxyType = PROXY_TYPE_HTTP;
}
else if (!strcmp("socks5", arg->Value))
{
else if (_stricmp("socks5", arg->Value) == 0)
settings->ProxyType = PROXY_TYPE_SOCKS;
}
else
{
WLog_ERR(TAG, "Only HTTP and SOCKS5 proxies supported by now");

1
include/freerdp/settings.h
View File

@ -475,6 +475,7 @@ typedef struct _RDPDR_PARALLEL RDPDR_PARALLEL;
#define PROXY_TYPE_NONE 0
#define PROXY_TYPE_HTTP 1
#define PROXY_TYPE_SOCKS 2
#define PROXY_TYPE_IGNORE 0xFFFF
/* Settings */

116
libfreerdp/core/proxy.c
View File

@ -75,14 +75,23 @@ void proxy_read_environment(rdpSettings* settings, char* envname);
BOOL proxy_prepare(rdpSettings* settings, const char** lpPeerHostname, UINT16* lpPeerPort,
const char** lpProxyUsername, const char** lpProxyPassword)
{
if (settings->ProxyType == PROXY_TYPE_IGNORE)
return FALSE;
/* For TSGateway, find the system HTTPS proxy automatically */
if (!settings->ProxyType)
if (settings->ProxyType == PROXY_TYPE_NONE)
proxy_read_environment(settings, "https_proxy");
if (!settings->ProxyType)
if (settings->ProxyType == PROXY_TYPE_NONE)
proxy_read_environment(settings, "HTTPS_PROXY");
if (settings->ProxyType)
if (settings->ProxyType != PROXY_TYPE_NONE)
proxy_read_environment(settings, "no_proxy");
if (settings->ProxyType != PROXY_TYPE_NONE)
proxy_read_environment(settings, "NO_PROXY");
if (settings->ProxyType != PROXY_TYPE_NONE)
{
*lpPeerHostname = settings->ProxyHostname;
*lpPeerPort = settings->ProxyPort;
@ -94,6 +103,91 @@ BOOL proxy_prepare(rdpSettings* settings, const char** lpPeerHostname, UINT16* l
return FALSE;
}
static BOOL check_no_proxy(rdpSettings* settings, const char* no_proxy)
{
const char* delimiter = ",";
BOOL result = FALSE;
char* current;
char* copy;
size_t host_len;
if (!no_proxy || !settings)
return FALSE;
host_len = strlen(settings->ServerHostname);
copy = _strdup(no_proxy);
if (!copy)
return FALSE;
current = strtok(copy, delimiter);
while (current && !result)
{
const size_t currentlen = strlen(current);
if (currentlen > 0)
{
WLog_DBG(TAG, "%s => %s (%"PRIdz")", settings->ServerHostname, current, currentlen);
/* detect left and right "*" wildcard */
if (current[0] == '*')
{
if (host_len >= currentlen)
{
const size_t offset = host_len + 1 - currentlen;
if (strncmp(current + 1, settings->ServerHostname + offset, currentlen - 1) == 0)
result = TRUE;
}
}
else if (current[currentlen - 1] == '*')
{
if (strncmp(current, settings->ServerHostname, currentlen - 1) == 0)
result = TRUE;
}
else
{
if (strcmp(current, settings->ServerHostname) == 0)
result = TRUE; /* exact match */
else
{
struct sockaddr_in sa4;
struct sockaddr_in6 sa6;
BOOL is_ip = FALSE;
if (inet_pton(AF_INET, settings->ServerHostname, &sa4.sin_addr) == 1)
is_ip = TRUE;
else if (inet_pton(AF_INET6, settings->ServerHostname, &sa6.sin6_addr) == 1)
is_ip = TRUE;
if (is_ip)
{
if (!strncmp(current, settings->ServerHostname, currentlen))
result = TRUE; /* left-aligned match for IPs */
}
else if (current[0] == '.') /* Only compare if the no_proxy variable contains a whole domain. */
{
if (host_len >= currentlen)
{
const size_t offset = host_len - currentlen;
if (!strncmp(current, settings->ServerHostname + offset,
currentlen))
result = TRUE; /* right-aligned match for host names */
}
}
}
}
}
current = strtok(NULL, delimiter);
}
free(copy);
return result;
}
void proxy_read_environment(rdpSettings* settings, char* envname)
{
DWORD envlen;
@ -112,7 +206,20 @@ void proxy_read_environment(rdpSettings* settings, char* envname)
}
if (GetEnvironmentVariableA(envname, env, envlen) == envlen - 1)
proxy_parse_uri(settings, env);
{
if (_strnicmp("NO_PROXY", envname, 9) == 0)
{
if (check_no_proxy(settings, env))
{
WLog_INFO(TAG, "deactivating proxy: %s [%s=%s]", settings->ServerHostname, envname, env);
settings->ProxyType = PROXY_TYPE_NONE;
}
}
else
{
proxy_parse_uri(settings, env);
}
}
free(env);
}
@ -199,6 +306,7 @@ BOOL proxy_connect(rdpSettings* settings, BIO* bufferedBio, const char* proxyUse
switch (settings->ProxyType)
{
case PROXY_TYPE_NONE:
case PROXY_TYPE_IGNORE:
return TRUE;
case PROXY_TYPE_HTTP: