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#include "sysdep.h"
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <sys/select.h>
#include <fcntl.h>
#include <sys/types.h>
#include "libcitadel.h"
#include <sys/socket.h>
/**
* @defgroup URLHandling ParsedURL object to handle connection data
*/
/**
* @ingroup URLHandling
* @brief frees a linked list of ParsedURL
* @param Url (list) of ParsedURL to be freet; Pointer is NULL'ed for the caller.
*/
void FreeURL(ParsedURL** Url)
{
if (*Url != NULL) {
FreeStrBuf(&(*Url)->URL);
FreeStrBuf(&(*Url)->UrlWithoutCred);
FreeStrBuf(&(*Url)->CurlCreds);
FreeStrBuf(&(*Url)->UsrName);
FreeStrBuf(&(*Url)->Password);
if ((*Url)->Next != NULL)
FreeURL(&(*Url)->Next);
free(*Url);
*Url = NULL;
}
}
/**
* @ingroup URLHandling
* @brief parses the string provided with UrlStr into *Url
* @param Url on success this contains the parsed object; needs to be free'd by caller.
* @param UrlStr String we should parse into parts
* @param DefaultPort Which is the default port here?
*/
int ParseURL(ParsedURL **Url, StrBuf *UrlStr, unsigned short DefaultPort)
{
const char *pch, *pPort, *pCredEnd, *pUserEnd;
ParsedURL *url = (ParsedURL *)malloc(sizeof(ParsedURL));
memset(url, 0, sizeof(ParsedURL));
url->af = AF_INET;
url->Port = DefaultPort;
/*
* http://username:passvoid@[ipv6]:port/url
*/
url->URL = NewStrBufDup(UrlStr);
url->Host = pch = ChrPtr(url->URL);
url->LocalPart = strchr(pch, '/');
if (url->LocalPart != NULL) {
if ((*(url->LocalPart + 1) == '/') &&
(*(url->LocalPart - 1) == ':')) { /* TODO: find default port for this protocol... */
url->Host = url->LocalPart + 2;
url->LocalPart = strchr(url->Host, '/');
if (url->LocalPart != NULL)
{
StrBufPeek(url->URL, url->LocalPart, 0, '\0');
url->LocalPart++;
}
}
}
if (url->LocalPart == NULL) {
url->LocalPart = ChrPtr(url->URL) + StrLength(url->URL);
}
pCredEnd = strrchr(ChrPtr(url->URL), '@');
if (pCredEnd >= url->LocalPart)
pCredEnd = NULL;
if (pCredEnd != NULL)
{
url->User = url->Host;
url->Host = pCredEnd + 1;
pUserEnd = strchr(url->User, ':');
if (pUserEnd > pCredEnd)
pUserEnd = pCredEnd;
else {
url->Pass = pUserEnd + 1;
}
StrBufPeek(url->URL, pUserEnd, 0, '\0');
StrBufPeek(url->URL, pCredEnd, 0, '\0');
}
else
pUserEnd = NULL;
pPort = NULL;
if (*url->Host == '[') {
const char *pEndHost;
url->Host ++;
pEndHost = strchr(url->Host, ']');
if (pEndHost == NULL) {
FreeStrBuf(&url->URL);
free(url);
return 0; /* invalid syntax, no ipv6 */
}
StrBufPeek(url->URL, pEndHost, 0, '\0');
if (*(pEndHost + 1) == ':'){
StrBufPeek(url->URL, pEndHost + 1, 0, '\0');
pPort = pEndHost + 2;
}
url->af = AF_INET6;
}
else {
pPort = strchr(url->Host, ':');
if (pPort != NULL) {
StrBufPeek(url->URL, pPort, 0, '\0');
pPort ++;
}
}
if (pPort != NULL)
url->Port = atol(pPort);
if (url->IPv6)
{
url->IsIP = inet_pton(AF_INET6, url->Host, &url->Addr.sin6_addr);
if (url->IsIP)
{
url->Addr.sin6_port = htons(url->Port);
url->Addr.sin6_port = AF_INET6;
}
}
else
{
url->IsIP = inet_pton(AF_INET, url->Host, &((struct sockaddr_in *)&(url->Addr))->sin_addr);
if (url->IsIP)
{
((struct sockaddr_in *)&(url->Addr))->sin_port = htons(url->Port);
((struct sockaddr_in *)&(url->Addr))->sin_family = AF_INET;
}
}
if (url->User != NULL) {
url->UsrName = NewStrBufPlain(url->User, pUserEnd - url->User);
StrBufUnescape(url->UsrName, 0);
url->User = ChrPtr(url->UsrName);
}
if (url->Pass != NULL) {
url->Password = NewStrBufPlain(url->Pass, pCredEnd - url->Pass);
StrBufUnescape(url->Password, 0);
url->Pass = ChrPtr(url->Password);
}
if (*Url != NULL)
url->Next = *Url;
*Url = url;
return 1;
}
void CurlPrepareURL(ParsedURL *Url)
{
if (!strcmp(ChrPtr(Url->URL), "http"))
Url->UrlWithoutCred = NewStrBufPlain(ChrPtr(Url->URL), -1);
else
Url->UrlWithoutCred = NewStrBufPlain(HKEY("http://"));
StrBufAppendBufPlain(Url->UrlWithoutCred, Url->Host, -1, 0);
StrBufAppendBufPlain(Url->UrlWithoutCred, HKEY(":"), 0);
StrBufAppendPrintf(Url->UrlWithoutCred, "%u", Url->Port);
StrBufAppendBufPlain(Url->UrlWithoutCred, HKEY("/"), 0);
if (Url->LocalPart)
{
StrBufAppendBufPlain(Url->UrlWithoutCred, Url->LocalPart, -1, 0);
}
if (Url->User != NULL)
{
Url->CurlCreds = NewStrBufPlain(Url->User, -1);
StrBufAppendBufPlain(Url->CurlCreds, HKEY(":"), 0);
if (Url->Pass != NULL)
StrBufAppendBufPlain(Url->CurlCreds, Url->Pass, -1, 0);
}
Url->PlainUrl = ChrPtr(Url->UrlWithoutCred);
}
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