src/server/daemon/location.c

changeset 635
b85d45fd3b01
child 636
40f069ddda37
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/daemon/location.c	Sun Nov 23 12:44:59 2025 +0100
@@ -0,0 +1,124 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2025 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "location.h"
+#include "config.h"
+#include "../util/util.h"
+#include <cx/linked_list.h>
+
+#define DIR_CHECK_ARGC(n) if(argc != n) { \
+        log_ereport(LOG_FAILURE, "%s directive argc != %d", name.ptr, n); \
+        return 1; \
+    } 
+
+static void location_list_add(WSLocation *location, WSLocation *sub) {
+    void **begin = (void**)&location->children_begin;
+    void **end = (void**)&location->children_end;
+    cx_linked_list_add(begin, end, offsetof(WSLocation, prev), offsetof(WSLocation, next), sub);
+}
+
+static int add_location_config(const CxAllocator *a, WSLocation *location, ConfigNode *dir) {
+    cxmutstr name = dir->name;
+    int argc = serverconfig_directive_count_args(dir);
+    if(!cx_strcasecmp(name, "DirectoryIndex")) {
+        DIR_CHECK_ARGC(1);
+        location->config.set_dirindex = TRUE;
+        location->config.dirindex = util_getboolean_s(cx_strcast(dir->args->value), FALSE);
+    } else if(!cx_strcasecmp(name, "DocumentRoot")) {
+        DIR_CHECK_ARGC(1);
+        location->config.docroot = cx_strdup_a(a, dir->args->value);
+    } else if(!cx_strcasecmp(name, "Location")) {
+        WSLocation *sub_location = cfg_location_get(a, dir);
+        if(!sub_location) {
+            return 1;
+        }
+        location_list_add(location, sub_location);
+    }
+    
+    return 0;
+}
+
+
+WSLocation* cfg_location_get(const CxAllocator *a, ConfigNode *obj) { 
+    WSLocationMatch match = WS_LOCATION_MATCH_EXACT;
+    cxmutstr match_str;
+    
+    int regex_flags = REG_EXTENDED;
+    int argc = serverconfig_directive_count_args(obj);
+    if(argc == 2) {
+        // arg0: match type
+        cxmutstr type_str = obj->args->value;
+        if(!cx_strcmp(type_str, "=")) {
+            // noop
+        } else if(!cx_strcmp(type_str, "^~")) {
+            match = WS_LOCATION_MATCH_PREFIX;
+        } else if(!cx_strcmp(type_str, "~")) {
+            match = WS_LOCATION_MATCH_CS_REGEX;
+        } else if(!cx_strcmp(type_str, "~*")) {
+            match = WS_LOCATION_MATCH_CI_REGEX;
+            regex_flags |= REG_ICASE;
+        } else {
+            log_ereport(LOG_FAILURE, "Location: unknown operator %.*s", (int)type_str.length, type_str.ptr);
+            return NULL;
+        }
+        
+        // arg1: match_string
+        match_str = obj->args->next->value;
+    } else if(argc == 1) {
+        // arg0: match_string
+        match_str = obj->args->value;
+    } else if(argc > 2) {
+        log_ereport(LOG_FAILURE, "Location directive must have 0-2 args");
+        return NULL;
+    }
+    
+    WSLocation *location = cxZalloc(a, sizeof(WSLocation));
+    location->match_string = cx_strdup_a((a), match_str);
+    
+    if(match == WS_LOCATION_MATCH_CS_REGEX || match == WS_LOCATION_MATCH_CI_REGEX) {
+        if(regcomp(&location->regex, match_str.ptr, regex_flags)) {
+            log_ereport(LOG_FAILURE, "Location: cannot compile regex pattern %s", match_str.ptr);
+            return NULL;
+        }
+    }
+    
+    ConfigNode *dir = obj->children_begin;
+    while(dir) {
+        if(dir->type == CONFIG_NODE_OBJECT || dir->type == CONFIG_NODE_DIRECTIVE) {
+            if(add_location_config(a, location, dir)) {
+                log_ereport(LOG_FAILURE, "Location %s: abort", match_str.ptr);
+                return NULL;
+            }
+        }
+        dir = dir->next;
+    }
+    
+    
+    
+    return location;
+}

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