--- /dev/null
+#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"
+
+/**
+ * @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);
+ 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, *pEndHost, *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 = pch + StrLength(url->URL);
+ }
+
+ pCredEnd = strchr(pch, '@');
+ 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');
+ }
+
+ pPort = NULL;
+ if (*url->Host == '[') {
+ 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;
+ }
+ }
+ *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);
+}