76e6620f0bfc2240b45505446f5cba41b9b72817
max
  Thu Mar 6 03:39:36 2014 -0800
Allow special value HTTPHOST for central.domain and wiki.host, so aserver can be reached under multiple names. Might be a good default
value for our example hg.conf? refs #11957

diff --git src/hg/lib/wikiLink.c src/hg/lib/wikiLink.c
index a51f437..fabdd88 100644
--- src/hg/lib/wikiLink.c
+++ src/hg/lib/wikiLink.c
@@ -1,194 +1,199 @@
 /* wikiLink - interoperate with a wiki site (share user identities). */
 
 #include "common.h"
 #include "hash.h"
 #include "htmshell.h"
 #include "cheapcgi.h"
 #include "hgConfig.h"
 #include "hui.h"
 #include "cart.h"
 #include "web.h"
 #include "wikiLink.h"
 
 char *loginSystemName()
 /* Return the wiki host specified in hg.conf, or NULL.  Allocd here. */
 {
 return cloneString(cfgOption(CFG_LOGIN_SYSTEM_NAME));
 }
 
 boolean loginSystemEnabled()
 /* Return TRUE if login.systemName  parameter is defined in hg.conf . */
 {
 #ifdef USE_SSL
 return (cfgOption(CFG_LOGIN_SYSTEM_NAME) != NULL);
 #else
 return FALSE;
 #endif
 }
 
 char *wikiLinkHost()
-/* Return the wiki host specified in hg.conf, or NULL.  Allocd here. */
-{
-return cloneString(cfgOption(CFG_WIKI_HOST));
+/* Return the wiki host specified in hg.conf, or NULL.  Allocd here. 
+ * Returns hostname from http request if hg.conf entry is HTTPHOSTNAME.
+ * */
+{
+char *wikiHost = cfgOption(CFG_WIKI_HOST);
+if ((wikiHost!=NULL) && sameString(wikiHost, "HTTPHOST"))
+    wikiHost = hHttpHost();
+return cloneString(wikiHost);
 }
 
 boolean wikiLinkEnabled()
 /* Return TRUE if all wiki.* parameters are defined in hg.conf . */
 {
 return ((cfgOption(CFG_WIKI_HOST) != NULL) &&
 	(cfgOption(CFG_WIKI_USER_NAME_COOKIE) != NULL) &&
 	(cfgOption(CFG_WIKI_LOGGED_IN_COOKIE) != NULL));
 }
 
 static char *wikiLinkUserNameCookie()
 /* Return the cookie name specified in hg.conf as the wiki user name cookie. */
 {
 return cfgOption(CFG_WIKI_USER_NAME_COOKIE);
 }
 
 static char *wikiLinkLoggedInCookie()
 /* Return the cookie name specified in hg.conf as the wiki logged-in cookie. */
 {
 return cfgOption(CFG_WIKI_LOGGED_IN_COOKIE);
 }
 
 char *wikiLinkUserName()
 /* Return the user name specified in cookies from the browser, or NULL if 
  * the user doesn't appear to be logged in. */
 {
 if (wikiLinkEnabled())
     {
     char *wikiUserName = findCookieData(wikiLinkUserNameCookie());
     char *wikiLoggedIn = findCookieData(wikiLinkLoggedInCookie());
 
     if (isNotEmpty(wikiLoggedIn) && isNotEmpty(wikiUserName))
 	{
 	return cloneString(wikiUserName);
 	}
     }
 else
     errAbort("wikiLinkUserName called when wiki is not enabled (specified "
         "in hg.conf).");
 return NULL;
 }
 
 static char *encodedHgSessionReturnUrl(int hgsid)
 /* Return a CGI-encoded hgSession URL with hgsid.  Free when done. */
 {
 char retBuf[1024];
 safef(retBuf, sizeof(retBuf), "http%s://%s/cgi-bin/hgSession?hgsid=%d",
       cgiAppendSForHttps(), cgiServerNamePort(), hgsid);
 return cgiEncode(retBuf);
 }
 
 char *wikiLinkUserLoginUrl(int hgsid)
 /* Return the URL for the wiki user login page. */
 {
 char buf[2048];
 char *retEnc = encodedHgSessionReturnUrl(hgsid);
 if (loginSystemEnabled())
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLoginUrl called when login system is not enabled "
            "(specified in hg.conf).");
     safef(buf, sizeof(buf),
         "http%s://%s/cgi-bin/hgLogin?hgLogin.do.displayLoginPage=1&returnto=%s",
         cgiAppendSForHttps(), wikiLinkHost(), retEnc);
     } 
 else 
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLoginUrl called when wiki is not enabled (specified "
             "in hg.conf).");
     safef(buf, sizeof(buf),
         "http://%s/index.php?title=Special:UserloginUCSC&returnto=%s",
         wikiLinkHost(), retEnc);
     }   
 freez(&retEnc);
 return(cloneString(buf));
 }
 
 char *wikiLinkUserLogoutUrl(int hgsid)
 /* Return the URL for the wiki user logout page. */
 {
 char buf[2048];
 char *retEnc = encodedHgSessionReturnUrl(hgsid);
 
 if (loginSystemEnabled())
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLogoutUrl called when login system is not enabled "
             "(specified in hg.conf).");
     safef(buf, sizeof(buf),
         "http%s://%s/cgi-bin/hgLogin?hgLogin.do.displayLogout=1&returnto=%s",
         cgiAppendSForHttps(), wikiLinkHost(), retEnc);
     } 
 else
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLogoutUrl called when wiki is not enable (specified "
             "in hg.conf).");
     safef(buf, sizeof(buf),
         "http://%s/index.php?title=Special:UserlogoutUCSC&returnto=%s",
          wikiLinkHost(), retEnc);
     }
 freez(&retEnc);
 return(cloneString(buf));
 }
 
 char *wikiLinkUserSignupUrl(int hgsid)
 /* Return the URL for the user signup  page. */
 {
 char buf[2048];
 char *retEnc = encodedHgSessionReturnUrl(hgsid);
 
 if (loginSystemEnabled())
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserSignupUrl called when login system is not enabled "
             "(specified in hg.conf).");
     safef(buf, sizeof(buf),
         "http%s://%s/cgi-bin/hgLogin?hgLogin.do.signupPage=1&returnto=%s",
         cgiAppendSForHttps(), wikiLinkHost(), retEnc);
     }
 else
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLogoutUrl called when wiki is not enable (specified "
             "in hg.conf).");
     safef(buf, sizeof(buf),
         "http://%s/index.php?title=Special:UserlogoutUCSC&returnto=%s",
          wikiLinkHost(), retEnc);
     }
 freez(&retEnc);
 return(cloneString(buf));
 }
 
 char *wikiLinkChangePasswordUrl(int hgsid)
 /* Return the URL for the user change password page. */
 {
 char buf[2048];
 char *retEnc = encodedHgSessionReturnUrl(hgsid);
 
 if (loginSystemEnabled())
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkChangePasswordUrl called when login system is not enabled "
             "(specified in hg.conf).");
     safef(buf, sizeof(buf),
         "http%s://%s/cgi-bin/hgLogin?hgLogin.do.changePasswordPage=1&returnto=%s",
         cgiAppendSForHttps(), wikiLinkHost(), retEnc);
     }
 else
     {
     if (! wikiLinkEnabled())
         errAbort("wikiLinkUserLogoutUrl called when wiki is not enable (specified "
             "in hg.conf).");
     safef(buf, sizeof(buf),
         "http://%s/index.php?title=Special:UserlogoutUCSC&returnto=%s",
          wikiLinkHost(), retEnc);
     }
 freez(&retEnc);
 return(cloneString(buf));
 }