moved the old git poc code off and away from the main directory
[gwvp.git] / gwvplib / gwvpgitcontrol.php
index 6383f9e..7c34d9b 100644 (file)
@@ -4,7 +4,11 @@ $CALL_ME_FUNCTIONS["gitcontrol"] = "gwvp_gitControlCallMe";
 
 //$MENU_ITEMS["20repos"]["text"] = "Repo Admin";
 //$MENU_ITEMS["20repos"]["link"] = "$BASE_URL/admin/repos";
+$HOME_PAGE_PROVIDERS["gitlog"] = "gwvp_GitLogProvider";
 
+// TODO: we could actually change backend interface such that is
+// will respond to any url's that contain "repo.git" rather then
+// having to be $BASE_URL/git/repo.git
 function gwvp_gitControlCallMe()
 {
        if(isset($_REQUEST["q"])) {
@@ -22,34 +26,144 @@ function gwvp_gitControlCallMe()
        
 }
 
+function gwvp_GitLogProvider()
+{
+       echo "<br>gitload provider loaded on homepage<br>";
+}
+
 function gwvp_repoPermissionCheck($repo, $user)
 {
        return true;
 }
 
-function gwvp_gitBackendInterface_new()
+function gwvp_gitBackendInterface()
 {
        // and this is where i re-code the git backend interface from scratch
        global $BASE_URL;
        
        $repo_base = gwvp_getConfigVal("repodir");
        
+       // TODO: we need to stop passing the repo name around as "repo.git", it needs to be just "repo"
+       
+       
+       /* bizare git problem that ignores 403's or continues on with a push despite them 
+       error_log("FLAP for ".$_SERVER["REQUEST_URI"]);
+       if(isset($_REQUEST)) {
+               $dump = print_r($_REQUEST, true);
+               error_log("FLAP, $dump");
+       }
+       if(isset($_SERVER["PHP_AUTH_USER"])) {
+               error_log("FLAP: donut hole");
+       }*/
+       
+       
+
+       
        $repo = "";
+       $repoid = false;
        $newloc = "/";
        if(isset($_REQUEST["q"])) {
                $query = $_REQUEST["q"];
                $qspl = explode("/", $query);
-               $repo = $qspl[1];
+               // TODO do this with 
+               $repo = preg_replace("/\.git$/", "", $qspl[1]);
+               $repoid = gwvp_GetRepoId($repo);
                for($i=2; $i < count($qspl); $i++) {
                        $newloc .= "/".$qspl[$i];
                }
        }
        
+       if($repoid == false) {
+               gwvp_fourZeroFour();
+               return;
+       }
+       
+       // we do an update server cause its weird and i cant figure out when it actually needs to happen
+       chdir("$repo_base/$repo.git");
+       exec("/usr/bin/git update-server-info");
+       
+       
+       // so now we have the repo
+       // next we determine if this is a read or a write
+       $write = false;
+       if(isset($_REQUEST["service"])) {
+               if($_REQUEST["service"] == "git-receive-pack") {
+                       error_log("got write as receivepack in post");
+                       $write = true;
+               }
+       }
+       if($_SERVER["REQUEST_METHOD"] == "POST") {
+               $write = true;
+       }
+       // THIS MAY CAUSE ISSUES LATER ON but we do it cause the git client ignores our 403 when it uses git-receive-pack after an auth
+       // no, this isnt a solution cause auth'd read attempts will come up as writes...
+       //if(isset($_SERVER["PHP_AUTH_USER"])) {
+               //$write = true;
+       //}
+       
+       // if its a write, we push for authentication
+       if($write) {
+               error_log("is write attempt, ask for login");
+               $person = gwvp_checkBasicAuthLogin();
+               if($person == false) {
+                       gwvp_AskForBasicAuth();
+                       return;
+               } else {
+                       error_log("checking perms for $person against $repoid for repo $repo");
+                       $perms = gwvp_resolvRepoPerms(gwvp_getUserId(null, $person), $repoid);
+                       if($perms < 3) {
+                               error_log("perms are $perms and im not allowed");
+                               gwvp_fourZeroThree();
+                               exit(0);
+                       } else {
+                               // here we pass to the git backend
+                               error_log("perms are $perms and im allowed");
+                               gwvp_callGitBackend($person["username"], $repo);
+                       }
+               }
+               return;
+       }
+       
+       // if not we figure out the anon permissions for a repo
+       $perms = gwvp_resolvRepoPerms(-1, $repoid);
+       
+       // if they're less then read, we need to then check the user auth permissions
+       if($perms < 2) {
+               // we ask for auth
+               $person = gwvp_checkBasicAuthLogin();
+               if($person == false) {
+                       gwvp_AskForBasicAuth();
+                       return;
+               } else {
+                       $perms = gwvp_resolvRepoPerms(gwvp_getUserId(null, $person), $repoid);
+                       if($perms < 3) {
+                               $dump = print_r($person, true);
+                               error_log("in basic read, called 403 for $perms $dump");
+                               gwvp_fourZeroThree();
+                               return;
+                       }
+               }
+       }
+       
+       // if we made it this far, we a read and we have permissions to do so, just search the file from the repo
+       if(file_exists("$repo_base/$repo.git/$newloc")) {
+               error_log("would ask $repo for $repo.git/$newloc from $repo_base/$repo.git/$newloc");
+               $fh = fopen("$repo_base/$repo.git/$newloc", "rb");
+               
+               error_log("pushing file");
+               while(!feof($fh)) {
+                       echo fread($fh, 8192);
+               }
+       } else {
+               //echo "would ask $repo,$actual_repo_name for $repo/$newloc from $repo_base/$repo/$newloc, NE";
+               gwvp_fourZeroFour();
+               return;
+       }
        
 }
 
 
-function gwvp_gitBackendInterface()
+function gwvp_gitBackendInterface_old()
 {
        global $BASE_URL;
        
@@ -159,14 +273,23 @@ function gwvp_gitBackendInterface()
        }
 }
 
+function gwvp_canManageRepo($userid, $repoid)
+{
+       // only the owner or an admin can do these tasks
+       error_log("Checking repoid, $repoid against userid $userid");
+       
+       if(gwvp_IsUserAdmin(null, null, $userid)) return true;
+       if(gwvp_IsRepoOwner($userid, $repoid)) return true;
+       return false;
+}
 
-function gwvp_callGitBackend($repo)
+function gwvp_callGitBackend($username, $repo)
 {
        // this is where things become a nightmare
                $fh   = fopen('php://input', "r");
                
                $ruri = $_SERVER["REQUEST_URI"];
-               $strrem = "git/$repo";
+               $strrem = "git/$repo.git";
                $euri = str_replace($strrem, "", $_REQUEST["q"]);
                //$euri = preg_replace("/^git\/$repo\.git/", "", $_REQUEST["q"]);
                
@@ -196,12 +319,12 @@ function gwvp_callGitBackend($repo)
                // setup env
                if(isset($procenv))     unset($procenv);
                $procenv["GATEWAY_INTERFACE"] = "CGI/1.1";
-               $procenv["PATH_TRANSLATED"] = "/tmp/$repo/$euri";
+               $procenv["PATH_TRANSLATED"] = "/tmp/$repo.git/$euri";
                $procenv["REQUEST_METHOD"] = "$rmeth";
                $procenv["GIT_HTTP_EXPORT_ALL"] = "1";
                $procenv["QUERY_STRING"] = "$qs";
                $procenv["HTTP_USER_AGENT"] = "git/1.7.1";
-               $procenv["REMOTE_USER"] = "user";
+               $procenv["REMOTE_USER"] = "$username";
                $procenv["REMOTE_ADDR"] = "1.2.3.4";
                $procenv["AUTH_TYPE"] = "Basic";
                
@@ -214,7 +337,7 @@ function gwvp_callGitBackend($repo)
                        $procenv["CONTENT_LENGTH"] = $_SERVER["CONTENT_LENGTH"];
                }
                
-               error_log("path trans'd is /tmp/$repo/$euri from $ruri with ".$_REQUEST["q"]." $strrem");
+               error_log("path trans'd is /tmp/$repo.git/$euri from $ruri with ".$_REQUEST["q"]." $strrem");
                
                
                
@@ -365,26 +488,66 @@ function gwvp_createGitRepo($name, $ownerid, $desc, $bundle=null, $defaultperms=
 // 1 - visible
 // 2 - read
 // 3 - write
+// 4 - owner/administrator
 function gwvp_resolvRepoPerms($userid, $repoid)
 {
        $ownerid = gwvp_getRepoOwner($repoid);
        $isadmin = gwvp_IsUserAdmin(null, null, $userid);
        
-       if($isadmin) return 3;
+       error_log("USerid is $userid, ownerid $ownerid");
        
-       if($userid == $ownerid) return 3;
+       if($isadmin) return 4;
+       
+       if($userid == $ownerid) return 4;
        
        // now we load the perms table and pray
        $repoperms = gwvp_getRepoPermissions($repoid);
        $usergroups = gwvp_getGroupsForUser(null, $userid);
 
        $maxperm = 0;
-       foreach($repoperms as $perm) {
+       if($repoperms != false) foreach($repoperms as $perm) {
                // need to go thru each perm, then check it agains the user we're trying to figure
                // the perms on
+               switch($perm["type"]) {
+                       case "read":
+                               $permval = 2;
+                               break;
+                       case "visible":
+                               $permval = 1;
+                               break;
+                       case "write":
+                               $permval = 3;
+                               break;
+                       default:
+                               $permval = 0;
+               }
                
-               
+               // we only var if permval is greater then current
+               if($permval > $maxperm) {
+                       //error_log("going into check for $maxperm/$permval, ".$perm["ref"]);
+                       if($perm["ref"] == "anon") {
+                               $maxperm = $permval;
+                       } else if($perm["ref"] == "authed") {
+                               $maxperm = $permval;
+                       } else {
+                               // now we do splits
+                               $spl = explode(":", $perm["ref"]);
+                               $idtype = $spl[0];
+                               $idval = $spl[1];
+                               if($idtype == "group") {
+                                       // function gwvp_IsGroupMember($email, $groupname)
+                                       if(gwvp_IsGroupMemberById($userid, $idval)) $maxperm = $permval;
+                               } else if ($idtype == "user") {
+                                       //error_log("checking $userid, $idval");
+                                       if($userid == $idval) $maxperm = $permval;
+                               }
+                       }
+               }
        }
+       
+       // thats TOTALLY going to work... -_0 we should really write a unit test for this, but thats a bit
+       // hard given the db req's so for now, we'll leave it as is
+       return $maxperm;
 }
 
 ?>
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