add config related code from dav / load config and fill repo list

Mon, 29 Jan 2024 10:41:00 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Mon, 29 Jan 2024 10:41:00 +0100
changeset 6
09ac07345656
parent 5
83263002816f
child 7
905ac52c910f

add config related code from dav / load config and fill repo list

application/application.c file | annotate | diff | comparison | revisions
application/application.h file | annotate | diff | comparison | revisions
application/config.c file | annotate | diff | comparison | revisions
application/config.h file | annotate | diff | comparison | revisions
application/main.c file | annotate | diff | comparison | revisions
application/pwd.c file | annotate | diff | comparison | revisions
application/pwd.h file | annotate | diff | comparison | revisions
application/system.c file | annotate | diff | comparison | revisions
application/system.h file | annotate | diff | comparison | revisions
application/window.h file | annotate | diff | comparison | revisions
libidav/config.c file | annotate | diff | comparison | revisions
make/vs/idav/idav.vcxproj file | annotate | diff | comparison | revisions
make/vs/idav/idav.vcxproj.filters file | annotate | diff | comparison | revisions
--- a/application/application.c	Sun Jan 28 20:47:40 2024 +0100
+++ b/application/application.c	Mon Jan 29 10:41:00 2024 +0100
@@ -31,15 +31,26 @@
 #include <string.h>
 #include <stdbool.h>
 
+#include <libidav/webdav.h>
+
 #include "window.h"
+#include "config.h"
 
+static DavContext* davctx;
 
 void application_init(void) {
+	davctx = dav_context_new();
+
 	application_create_menu();
 }
 
 
 void application_startup(UiEvent* event, void* data) {
+	if (load_config(davctx)) {
+		// TODO: error
+		exit(-1);
+	}
+
 	UiObject* win = window_create();
 
 	DavApp* app = application_create_app_document();
@@ -88,14 +99,27 @@
 }
 
 
+
 DavApp* application_create_app_document(void) {
 	DavApp* doc = ui_document_new(sizeof(DavApp));
 	UiContext* ctx = ui_document_context(doc);
 	doc->repos = ui_list_new(ctx, "repolist");
 
-	ui_list_append(doc->repos, "test");
-	
-
+	// create repo list
+	application_update_repolist(doc);
 
 	return doc;
 }
+
+void application_update_repolist(DavApp* app) {
+	DavConfig* config = get_config();
+	DavCfgRepository* repo = config->repositories;
+
+	// TODO: free list content ptr
+	ui_list_clear(app->repos);
+
+	for (DavCfgRepository* repo = config->repositories; repo; repo = repo->next) {
+		// TODO: copy repo name
+		ui_list_append(app->repos, repo->name.value.ptr);
+	}
+}
--- a/application/application.h	Sun Jan 28 20:47:40 2024 +0100
+++ b/application/application.h	Mon Jan 29 10:41:00 2024 +0100
@@ -26,6 +26,9 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef IDAV_APPLICATION_H
+#define	IDAV_APPLICATION_H
+
 #include <ui/ui.h>
 
 #include <stdio.h>
@@ -34,6 +37,10 @@
 #include <libidav/webdav.h>
 #include <libidav/config.h>
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 
 typedef struct DavApp {
 	DavConfig *dav_config;
@@ -56,3 +63,11 @@
 
 
 DavApp* application_create_app_document(void);
+
+void application_update_repolist(DavApp *app);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* IDAV_APPLICATION_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/config.c	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,328 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2024 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <cx/hash_map.h>
+#include <cx/utils.h>
+#include <errno.h>
+#include <libxml/tree.h>
+
+#include "pwd.h"
+#include "config.h"
+#include "system.h"
+
+#include <libidav/utils.h>
+#include <libidav/config.h>
+
+#define xstreq(a,b) xmlStrEqual(BAD_CAST a, BAD_CAST b)
+#define xstrEQ(a,b) !xmlStrcasecmp(BAD_CAST a, BAD_CAST b)
+
+#define print_error(lineno, ...) \
+    do {\
+        fprintf(stderr, "Error (config.xml line %u): ", lineno); \
+        fprintf(stderr, __VA_ARGS__); \
+        fprintf(stderr, "Abort.\n"); \
+    } while(0);
+#define print_warning(lineno, ...) \
+    do {\
+        fprintf(stderr, "Warning (config.xml line %u): ", lineno); \
+        fprintf(stderr, __VA_ARGS__); \
+    } while(0);
+
+#ifdef _WIN32
+#define ENV_HOME getenv("USERPROFILE")
+#else
+#define ENV_HOME getenv("HOME")
+#endif /* _WIN32 */
+
+static CxMap* repos;
+static CxMap* keys;
+
+static DavConfig* davconfig;
+static PwdStore* pstore;
+
+static char* secretstore_unlock_cmd;
+static char* secretstore_lock_cmd;
+
+int check_config_dir(void) {
+    char* file = util_concat_path(ENV_HOME, ".dav");
+    int ret = 0;
+    if (util_mkdir(file, S_IRWXU)) {
+        if (errno != EEXIST) {
+            ret = 1;
+        }
+    }
+    free(file);
+    return ret;
+}
+
+static DavContext* context;
+
+void create_default_config(char* file) {
+    xmlDoc* doc = xmlNewDoc(BAD_CAST "1.0");
+    xmlNode* root = xmlNewNode(NULL, BAD_CAST "configuration");
+    xmlDocSetRootElement(doc, root);
+    xmlSaveFormatFileEnc(file, doc, "UTF-8", 1);
+    xmlFreeDoc(doc);
+}
+
+char* config_file_path(char* name) {
+    char* davd = util_concat_path(ENV_HOME, ".dav");
+    if (!davd) {
+        return NULL;
+    }
+    char* path = util_concat_path(davd, name);
+    free(davd);
+    return path;
+}
+
+cxmutstr config_load_file(const char* path) {
+    FILE* file = sys_fopen(path, "r");
+    if (!file) {
+        return (cxmutstr) { NULL, 0 };
+    }
+
+    CxBuffer buf;
+    cxBufferInit(&buf, NULL, 1024, cxDefaultAllocator, CX_BUFFER_AUTO_EXTEND);
+    cx_stream_copy(file, &buf, (cx_read_func)fread, (cx_write_func)cxBufferWrite);
+    fclose(file);
+
+    return cx_mutstrn(buf.space, buf.size);
+}
+
+int load_config(DavContext* ctx) {
+    context = ctx;
+    // TODO: free the config somewhere
+    repos = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+    keys = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+
+    char* pwfile = util_concat_path(ENV_HOME, ".dav/secrets.crypt");
+    pstore = pwdstore_open(pwfile);
+    free(pwfile);
+
+    char* file = util_concat_path(ENV_HOME, ".dav/config.xml");
+
+    struct stat s;
+    if (stat(file, &s)) {
+        switch (errno) {
+        case ENOENT: {
+            return 0;
+        }
+        default: {
+            perror("Cannot load config.xml");
+        }
+        }
+        return 1;
+    }
+
+    cxmutstr config_content = config_load_file(file);
+    int config_error;
+    davconfig = dav_config_load(config_content, &config_error);
+    free(config_content.ptr);
+    free(file);
+
+    if (!davconfig) {
+        fprintf(stderr, "Cannot load config.xml\n");
+        return 1;
+    }
+
+    return dav_config_register_keys(davconfig, ctx, load_key_file);
+}
+
+DavConfig* get_config(void) {
+    return davconfig;
+}
+
+int store_config(void) {
+    if (check_config_dir()) {
+        return 1;
+    }
+
+    CxBuffer* buf = dav_config2buf(davconfig);
+    if (!buf) {
+        return 1;
+    }
+
+    char* file = util_concat_path(ENV_HOME, ".dav/config.xml");
+    FILE* cout = sys_fopen(file, "w");
+    if (!cout) {
+        cxBufferFree(buf);
+        return 1;
+    }
+
+    // should only fail if we run out of disk space or something like that
+    // in that case, the config file is only destroyed
+    // could only be prevented, if we write to a temp file first and than
+    // rename it
+    fwrite(buf->space, buf->size, 1, cout);
+
+    cxBufferFree(buf);
+    fclose(cout);
+
+    return 0;
+}
+
+void free_config(void) {
+    if (davconfig) {
+        dav_config_free(davconfig);
+    }
+}
+
+cxmutstr load_key_file(const char* filename) {
+    cxmutstr k;
+    k.ptr = NULL;
+    k.length = 0;
+
+    FILE* file = NULL;
+    if (filename[0] == '/') {
+        file = sys_fopen(filename, "r");
+    }
+    else {
+        char* path = util_concat_path(ENV_HOME, ".dav/");
+        char* p2 = util_concat_path(path, filename);
+        file = sys_fopen(p2, "r");
+        free(path);
+        free(p2);
+    }
+
+    if (!file) {
+        fprintf(stderr, "Error: cannot load keyfile %s\n", filename);
+        return k;
+    }
+
+    char* data = malloc(256);
+    size_t r = fread(data, 1, 256, file);
+    k.ptr = data;
+    k.length = r;
+
+    fclose(file);
+    return k;
+}
+
+static char* get_attr_content(xmlNode* node) {
+    // TODO: remove code duplication (util_xml_get_text)
+    while (node) {
+        if (node->type == XML_TEXT_NODE) {
+            return (char*)node->content;
+        }
+        node = node->next;
+    }
+    return NULL;
+}
+
+int load_namespace(const xmlNode* node) {
+    const char* prefix = NULL;
+    const char* uri = NULL;
+
+    xmlAttr* attr = node->properties;
+    while (attr) {
+        if (attr->type == XML_ATTRIBUTE_NODE) {
+            char* value = get_attr_content(attr->children);
+            if (!value) {
+                print_error(
+                    node->line,
+                    "missing value for attribute %s\n", (char*)attr->name);
+                return 1;
+            }
+            if (xstreq(attr->name, "prefix")) {
+                prefix = value;
+            }
+            else if (xstreq(attr->name, "uri")) {
+                uri = value;
+            }
+            else {
+                print_error(
+                    node->line,
+                    "unexpected attribute %s\n", (char*)attr->name);
+                return 1;
+            }
+        }
+        attr = attr->next;
+    }
+
+    if (!prefix) {
+        print_error(node->line, "missing prefix attribute\n");
+        return 1;
+    }
+    if (!uri) {
+        print_error(node->line, "missing uri attribute\n");
+        return 1;
+    }
+
+    if (dav_get_namespace(context, prefix)) {
+        print_error(node->line, "namespace prefix '%s' already used\n", prefix);
+        return 1;
+    }
+
+    return dav_add_namespace(context, prefix, uri);
+}
+
+int load_secretstore(const xmlNode* node) {
+    // currently only one secretstore is supported
+
+    if (!pstore) {
+        return 0;
+    }
+
+    node = node->children;
+    int error = 0;
+    while (node) {
+        if (node->type == XML_ELEMENT_NODE) {
+            char* value = util_xml_get_text(node);
+            if (value) {
+                if (xstreq(node->name, "unlock-command")) {
+                    pstore->unlock_cmd = strdup(value);
+                }
+                else if (xstreq(node->name, "lock-command")) {
+                    pstore->lock_cmd = strdup(value);
+                }
+            }
+        }
+        node = node->next;
+    }
+
+    return error;
+}
+
+PwdStore* get_pwdstore(void) {
+    return pstore;
+}
+
+int pwdstore_save(PwdStore* pwdstore) {
+    if (check_config_dir()) {
+        return 1;
+    }
+
+    char* pwfile = util_concat_path(ENV_HOME, ".dav/secrets.crypt");
+    int ret = pwdstore_store(pwdstore, pwfile);
+    free(pwfile);
+    return ret;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/config.h	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,72 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2024 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.
+ */
+
+#ifndef CONFIG_H
+#define	CONFIG_H
+
+#include <cx/string.h>
+#include <stdbool.h>
+#include <libidav/webdav.h>
+#include "pwd.h"
+
+#include <libidav/config.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+
+#define HTTP_PROXY 1
+#define HTTPS_PROXY 2
+
+
+int check_config_dir(void);
+
+char* config_file_path(char* name);
+
+cxmutstr config_load_file(const char* path);
+
+int load_config(DavContext* ctx);
+DavConfig* get_config(void);
+int store_config(void);
+void free_config(void);
+
+cxmutstr load_key_file(const char* filename);
+
+PwdStore* get_pwdstore(void);
+int pwdstore_save(PwdStore* pwdstore);
+
+
+int request_auth(DavSession* sn, void* userdata);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* CONFIG_H */
+
--- a/application/main.c	Sun Jan 28 20:47:40 2024 +0100
+++ b/application/main.c	Mon Jan 29 10:41:00 2024 +0100
@@ -36,8 +36,10 @@
 #include <ui/ui.h>
 
 #include "application.h"
+#include "system.h"
 
 int idav_main(int argc, char **argv) {
+	sys_init();
 	ui_init("idav", argc, argv);
 
 	application_init();
@@ -45,6 +47,7 @@
 	
 	ui_main();
 
+	sys_uninit();
 	return 0;
 }
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/pwd.c	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,472 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2018 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "pwd.h"
+
+#include <cx/buffer.h>
+#include <cx/utils.h>
+#include <cx/hash_map.h>
+
+#ifdef _WIN32
+#include <winsock.h>
+#pragma comment(lib, "Ws2_32.lib")
+#else
+#include <netinet/in.h>
+#endif
+
+PwdStore* pwdstore_open(const char *file) {
+    FILE *in = fopen(file, "r");
+    if(!in) {
+        return NULL;
+    }
+    
+    CxBuffer *buf = cxBufferCreate(NULL, 2048, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
+    cx_stream_copy(in, buf, (cx_read_func)fread, (cx_write_func)cxBufferWrite);
+    fclose(in);
+    
+    if(buf->size < PWDS_HEADER_SIZE || buf->space[0] != PWDS_MAGIC_CHAR) {
+        cxBufferFree(buf);
+        return NULL;
+    }
+    
+    PwdStore *p = malloc(sizeof(PwdStore));
+    p->ids = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+    p->locations = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+    p->noloc = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+    p->index = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+    p->content = buf;
+    p->key = NULL;
+    p->unlock_cmd = NULL;
+    p->lock_cmd = NULL;
+    p->encoffset = PWDS_HEADER_SIZE;
+    p->isdecrypted = 0;
+    
+    if(pwdstore_getindex(p)) {
+        pwdstore_free(p);
+        return NULL;
+    }
+    
+    return p;
+}
+
+PwdStore* pwdstore_new(void) {
+    PwdStore *p = calloc(1, sizeof(PwdStore));
+    p->ids = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+    p->locations = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+    p->noloc = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+    p->index = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
+    p->content = cxBufferCreate(NULL, PWDS_HEADER_SIZE, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
+    PWDS_MAGIC(p) = PWDS_MAGIC_CHAR;
+    PWDS_VERSION(p) = 1;
+    PWDS_ENC(p) = DAV_KEY_AES256;
+    PWDS_PWFUNC(p) = DAV_PWFUNC_PBKDF2_SHA256;
+    dav_rand_bytes((unsigned char*)p->content->space+4, 16);
+    p->isdecrypted = 1;
+    p->encoffset = PWDS_HEADER_SIZE;
+    return p;
+}
+
+static int readval(CxBuffer *in, char **val, int allowzero) {
+    // value  = length string
+    // length = uint32
+    // string = bytes
+    
+    *val = NULL;
+    
+    // get length
+    uint32_t length = 0;
+    if(cxBufferRead(&length, 1, sizeof(uint32_t), in) != sizeof(uint32_t)) {
+        return 0;
+    }
+    length = ntohl(length); // convert from BE to host byte order
+    if(length == 0) {
+        if(allowzero) {
+            return 1;
+        } else {
+            return 0;
+        }
+    }
+    if(length > PWDSTORE_MAX_LEN) {
+        return 0;
+    }
+    
+    // get value
+    char *value = malloc(length + 1);
+    value[length] = 0;
+    if(cxBufferRead(value, 1, length, in) != length) {
+        free(value);
+        return 0;
+    }
+    
+    *val = value;
+    return 1;
+}
+
+static int read_indexentry(PwdStore *p, CxBuffer *in) {
+    // read type of index element
+    int type = cxBufferGet(in);
+    if(type == EOF || type != 0) {
+        // only type 0 supported yet
+        return 0;
+    }
+      
+    char *id = NULL;
+    CxList *locations = cxLinkedListCreateSimple(CX_STORE_POINTERS);
+    locations->simple_destructor = free;
+    
+    // get id (required)
+    int ret = 0;
+    if(readval(in, &id, FALSE)) {
+        ret = 1;
+        // get locations
+        char *location = NULL;
+        while((ret = readval(in, &location, TRUE)) == 1) {
+            if(!location) {
+                break;
+            }
+            cxListAdd(locations, location);
+        }
+    }
+    
+    if(ret) {
+        pwdstore_put_index(p, id, locations);
+    } else {
+        if(id) free(id);
+        cxListDestroy(locations);
+    }
+    
+    return ret;
+}
+
+static int read_pwdentry(PwdStore *p, CxBuffer *in) {
+    int type = cxBufferGet(in);
+    if(type == EOF || type != 0) {
+        // only type 0 supported yet
+        return 0;
+    }
+    
+    char *id = NULL;
+    char *location = NULL;
+    char *user = NULL;
+    char *password = NULL;
+    
+    int ret = 0;
+    if(readval(in, &id, FALSE)) {
+        if(readval(in, &user, FALSE)) {
+            if(readval(in, &password, FALSE)) {
+                pwdstore_put(p, id, user, password);
+                ret = 1;
+            }
+        }
+    }
+    
+    if(id) free(id);
+    if(location) free(location);
+    if(user) free(user);
+    if(password) free(password);
+    
+    return ret;
+}
+
+static int remove_list_entries(PwdStore *s, const char *id) {
+    int ret = 0;
+    
+    CxList *loc_entry = NULL;
+    CxList *noloc_entry = NULL;
+    
+    CxMutIterator i = cxListMutIterator(s->locations);
+    cx_foreach(PwdIndexEntry*, ie, i) {
+        if(!strcmp(ie->id, id)) {
+            cxIteratorFlagRemoval(i);
+            // TODO: break loop
+        }
+    }
+    i = cxListMutIterator(s->noloc);
+    cx_foreach(PwdIndexEntry*, ie, i) {
+        if(!strcmp(ie->id, id)) {
+            cxIteratorFlagRemoval(i);
+            // TODO: break loop
+        }
+    }
+    
+    return ret;
+}
+
+void pwdstore_remove_entry(PwdStore *s, const char *id) {
+    while(remove_list_entries(s, id)) {}
+    
+    CxHashKey key = cx_hash_key_str(id);
+    PwdIndexEntry *i = cxMapRemoveAndGet(s->index, key);
+    PwdEntry *e = cxMapRemoveAndGet(s->ids, key);
+    
+    if(i) {
+        cxListDestroy(i->locations);
+        free(i->id);
+        free(i);
+    }
+    if(e) {
+        free(e->id);
+        free(e->user);
+        free(e->password);
+        free(e);
+    }
+}
+
+int pwdstore_getindex(PwdStore *s) {
+    uint32_t netindexlen;
+    
+    // set the position to the last 4 bytes of the header
+    // for reading index length
+    s->content->pos = PWDS_HEADER_SIZE - sizeof(uint32_t);
+    
+    // read indexlen and convert to host byte order
+    if(cxBufferRead(&netindexlen, 1, sizeof(uint32_t), s->content) != sizeof(uint32_t)) {
+        return 1;
+    }
+    uint32_t indexlen = ntohl(netindexlen);
+    
+    // integer overflow check
+    if(UINT32_MAX - PWDS_HEADER_SIZE < indexlen) {
+        return 1;
+    }
+    if(s->content->size < PWDS_HEADER_SIZE + indexlen) {
+        return 1;
+    }
+    // encrypted content starts after the index content
+    s->encoffset = PWDS_HEADER_SIZE + indexlen;
+    
+    // the index starts after the header
+    CxBuffer *index = cxBufferCreate(s->content->space+PWDS_HEADER_SIZE, indexlen, cxDefaultAllocator, 0);
+    index->size = indexlen;
+    
+    // read index
+    while(read_indexentry(s, index)) {}
+    
+    // free index buffer structure (not the content)
+    cxBufferFree(index);
+    
+    return 0;
+}
+
+int pwdstore_decrypt(PwdStore *p) {
+    if(!p->key) {
+        return 1;
+    }
+    if(p->isdecrypted) {
+        return 0;
+    }
+    
+    // decrypt contet
+    size_t encsz = p->content->size - p->encoffset;
+    CxBuffer *enc = cxBufferCreate(p->content->space + p->encoffset, encsz, cxDefaultAllocator, 0);
+    enc->size = encsz;
+    enc->size = p->content->size - p->encoffset;
+    CxBuffer *content = aes_decrypt_buffer(enc, p->key);
+    cxBufferFree(enc);
+    if(!content) {
+        return 1;
+    }
+    
+    while(read_pwdentry(p, content)) {}
+    
+    cxBufferFree(content);
+    
+    return 0;
+}
+
+int pwdstore_setpassword(PwdStore *p, const char *password) {
+    DavKey *key = dav_pw2key(
+            password,
+            (unsigned char*)(p->content->space + 4),
+            16,
+            PWDS_PWFUNC(p),
+            PWDS_ENC(p));
+    if(!key) {
+        return 1;
+    }
+    
+    p->key = key;
+    return 0;
+}
+
+void pwdstore_encsettings(PwdStore *p, uint8_t enc, uint8_t pwfunc) {
+    PWDS_ENC(p) = enc;
+    PWDS_PWFUNC(p) = pwfunc;
+}
+
+void pwdstore_free_entry(PwdEntry *e) {
+    if(e->id) free(e->id);
+    if(e->user) free(e->user);
+    if(e->password) free(e->password);
+    free(e);
+}
+
+void pwdstore_free(PwdStore* p) {
+    p->ids->simple_destructor = (cx_destructor_func)pwdstore_free_entry;
+    cxMapDestroy(p->ids);
+    
+    cxListDestroy(p->locations);
+    
+    if(p->content) {
+        cxBufferFree(p->content);
+    }
+    
+    free(p);
+}
+
+int pwdstore_has_id(PwdStore *s, const char *id) {
+    return cxMapGet(s->index, cx_hash_key_str(id)) ? 1 : 0;
+}
+
+PwdEntry* pwdstore_get(PwdStore *p, const char *id) {
+    PwdEntry *e = cxMapGet(p->ids, cx_hash_key_str(id));
+    if(e && e->user && e->password) {
+        return e;
+    } else {
+        return NULL;
+    }
+}
+
+void pwdstore_put(PwdStore *p, const char *id, const char *username, const char *password) {
+    PwdEntry *entry = malloc(sizeof(PwdEntry));
+    entry->id = strdup(id);
+    entry->user = strdup(username);
+    entry->password = strdup(password);
+    cxMapPut(p->ids, cx_hash_key_str(id), entry);
+}
+
+void pwdstore_put_index(PwdStore *p, char *id, CxList *locations) {
+    PwdIndexEntry *e = cxMapGet(p->index, cx_hash_key_str(id));
+    if(e) {
+        return;
+    }
+    PwdIndexEntry *newentry = malloc(sizeof(PwdIndexEntry));
+    newentry->id = id;
+    if(locations) {
+        newentry->locations = locations;
+        cxListAdd(p->locations, newentry);
+    } else {
+        newentry->locations = NULL;
+        cxListAdd(p->noloc, newentry);
+    }
+    cxMapPut(p->index, cx_hash_key_str(id), newentry);
+}
+
+void write_index_entry(CxBuffer *out, PwdIndexEntry *e) {
+    uint32_t idlen = strlen(e->id);
+    uint32_t netidlen = htonl(idlen);
+    
+    cxBufferPut(out, 0); // type
+
+    cxBufferWrite(&netidlen, 1, sizeof(uint32_t), out);
+    cxBufferWrite(e->id, 1, idlen, out);
+    
+    CxIterator i = cxListIterator(e->locations);
+    cx_foreach(char *, location, i) {
+        uint32_t locationlen = strlen(location);
+        uint32_t netlocationlen = htonl(locationlen);
+        
+        cxBufferWrite(&netlocationlen, 1, sizeof(uint32_t), out);
+        cxBufferWrite(location, 1, locationlen, out);
+    }
+    
+    uint32_t terminate = 0;
+    cxBufferWrite(&terminate, 1, sizeof(uint32_t), out);
+}
+
+int pwdstore_store(PwdStore *p, const char *file) {
+    if(!p->key) {
+        return 1;
+    }
+    
+    CxBuffer *index = cxBufferCreate(NULL, 2048, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
+    CxBuffer *content = cxBufferCreate(NULL, 2048, cxDefaultAllocator, CX_BUFFER_FREE_CONTENTS|CX_BUFFER_AUTO_EXTEND);
+    
+    // create index
+    CxIterator i = cxListIterator(p->noloc);
+    cx_foreach(PwdIndexEntry*, e, i) {
+        write_index_entry(index, e);
+    }
+    i = cxListIterator(p->locations);
+    cx_foreach(PwdIndexEntry*, e, i) {
+        write_index_entry(index, e);
+    }
+    
+    i = cxMapIteratorValues(p->ids);
+    cx_foreach(PwdEntry*, value, i) {
+        if(!value->id || !value->user || !value->password) {
+            continue;
+        }
+        
+        uint32_t idlen = strlen(value->id);
+        uint32_t ulen = strlen(value->user);
+        uint32_t plen = strlen(value->password);
+        uint32_t netidlen = htonl(idlen);
+        uint32_t netulen = htonl(ulen);
+        uint32_t netplen = htonl(plen);
+        
+        // content buffer
+        cxBufferPut(content, 0); // type
+        
+        cxBufferWrite(&netidlen, 1, sizeof(uint32_t), content);
+        cxBufferWrite(value->id, 1, idlen, content);
+        cxBufferWrite(&netulen, 1, sizeof(uint32_t), content);
+        cxBufferWrite(value->user, 1, ulen, content);
+        cxBufferWrite(&netplen, 1, sizeof(uint32_t), content);
+        cxBufferWrite(value->password, 1, plen, content);
+    }
+      
+    content->pos = 0;
+    CxBuffer *enc = aes_encrypt_buffer(content, p->key);
+
+    p->content->pos = PWDS_HEADER_SIZE - sizeof(uint32_t);
+    p->content->size = PWDS_HEADER_SIZE;
+    
+    // add index after header
+    uint32_t netindexlen = htonl((uint32_t)index->size);
+    cxBufferWrite(&netindexlen, 1, sizeof(uint32_t), p->content);
+    cxBufferWrite(index->space, 1, index->size, p->content);
+    
+    // add encrypted buffer
+    cxBufferWrite(enc->space, 1, enc->size, p->content);
+    
+    cxBufferFree(enc);
+    
+    FILE *out = fopen(file, "w");
+    if(!out) {
+        return 1;
+    }
+    fwrite(p->content->space, 1, p->content->size, out);
+    fclose(out);
+    
+    return 0;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/pwd.h	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,197 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2018 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.
+ */
+
+#ifndef PWD_H
+#define PWD_H
+
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include <cx/map.h>
+#include <cx/buffer.h>
+#include <cx/linked_list.h>
+#include <libidav/crypto.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PWDSTORE_MAX_LEN 4096
+    
+/*
+ * File Format:
+ * 
+ * file = header, index, enc_content
+ * header = magic, version, enc, pwfunc, salt, indexlen
+ * magic = 1 byte
+ * version = 1 byte
+ * enc = 1 byte
+ * pwfunc = 1 byte
+ * salt = 16 bytes
+ * indexlen = uint32
+ * index = { itype length id locations zero }
+ * enc_content = iv bytes
+ * iv = 16 bytes
+ * content = { entry }
+ * entry = itype length id length username length password
+ * length = uint32
+ * zero = 4 zero bytes
+ * itype = 1 byte
+ * id = string
+ * locations = { length string }
+ * username = string
+ * password = string
+ * 
+ * The content is AES encrypted with a key derived from a password
+ * and the salt. The first 16 bytes are the aes iv.
+ * 
+ * All integers are big endian
+ */
+    
+#define PWDS_HEADER_SIZE 24
+    
+typedef struct PwdStore        PwdStore;
+typedef struct PwdEntry        PwdEntry;
+typedef struct PwdIndexEntry   PwdIndexEntry;
+
+struct PwdStore {
+    /*
+     * map of all credentials
+     * key is the username
+     * value is PwdEntry*
+     */
+    CxMap *ids;
+    
+    /*
+     * list of all credentials with location
+     * value is PwdIndexEntry*
+     */
+    CxList *locations;
+    
+    /*
+     * list of all credentials without location
+     * value is PwdIndexEntry*
+     */
+    CxList *noloc;
+    
+    /*
+     * index map that contains all elements from the lists
+     * 'locations' and 'noloc'
+     */
+    CxMap *index;
+    
+    /*
+     * a buffer containing the complete file content
+     */
+    CxBuffer *content;
+    
+    /*
+     * key used for encryption/decryption
+     */
+    DavKey *key;
+    
+    /*
+     * optional shell command, that is used for getting the master password
+     */
+    char *unlock_cmd;
+    
+    /*
+     * optional shell command, that is exected when the secretstore is closed
+     */
+    char *lock_cmd;
+    
+    /*
+     * start offset of the encrypted buffer
+     */
+    uint32_t encoffset;
+    
+    /*
+     * indicates if the PwdStore is decrypted with pwdstore_decrypt
+     */
+    uint8_t isdecrypted;
+};
+
+#define PWDS_MAGIC(p) (p)->content->space[0]
+#define PWDS_VERSION(p) (p)->content->space[1]
+#define PWDS_ENC(p) (p)->content->space[2]
+#define PWDS_PWFUNC(p) (p)->content->space[3]
+
+#define PWDS_MAGIC_CHAR 'P'
+
+struct PwdEntry {
+    char *id;
+    char *user;
+    char *password;
+};
+
+struct PwdIndexEntry {
+    char *id;
+    CxList *locations;
+};
+
+/*
+ * opens the password store
+ * the content is still encrypted and must be decrypted using pwdstore_decrypt
+ */
+PwdStore* pwdstore_open(const char *file);
+
+PwdStore* pwdstore_new(void);
+
+/*
+ * decrypts the password store with a password
+ */
+int pwdstore_decrypt(PwdStore *p);
+
+int pwdstore_setpassword(PwdStore *p, const char *password);
+
+void pwdstore_encsettings(PwdStore *p, uint8_t enc, uint8_t pwfunc);
+
+void pwdstore_free_entry(PwdEntry *e);
+void pwdstore_free(PwdStore* p);
+
+int pwdstore_has_id(PwdStore *s, const char *id);
+int pwdstore_has_location(PwdStore *s, const char *location);
+
+PwdEntry* pwdstore_get(PwdStore *p, const char *id);
+
+void pwdstore_put(PwdStore *p, const char *id, const char *username, const char *password);
+void pwdstore_put_index(PwdStore *p, char *id, CxList *locations);
+
+void pwdstore_remove_entry(PwdStore *s, const char *id);
+
+int pwdstore_store(PwdStore *p, const char *file);
+
+/* private */
+int pwdstore_getindex(PwdStore *s);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PWD_H */
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/system.c	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,531 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2024 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 <libidav/utils.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+
+#include <cx/string.h>
+
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
+#include "system.h"
+
+void sys_freedirent(SysDirEnt *ent) {
+    free(ent->name);
+    free(ent);
+}
+
+#ifndef _WIN32
+/* ---------- POSIX implementation ---------- */
+
+void sys_init(void) {
+    
+}
+void sys_uninit(void) {
+    
+}
+
+SYS_DIR sys_opendir(const char *path) {
+    DIR *dir = opendir(path);
+    if(!dir) {
+        return NULL;
+    }
+    SysDir *d = malloc(sizeof(SysDir));
+    d->dir = dir;
+    d->ent = NULL;
+    return d;
+}
+
+SysDirEnt* sys_readdir(SYS_DIR dir) {
+    if(dir->ent) {
+        free(dir->ent->name);
+        free(dir->ent);
+        dir->ent = NULL;
+    }
+    struct dirent *ent = readdir(dir->dir);
+    if(ent) {
+        SysDirEnt *e = malloc(sizeof(SysDirEnt));
+        e->name = strdup(ent->d_name);
+        dir->ent = e;
+        return e;
+    }
+    return NULL;
+}
+
+void sys_closedir(SYS_DIR dir) {
+    closedir(dir->dir);
+    if(dir->ent) {
+        free(dir->ent->name);
+        free(dir->ent);
+    }
+    free(dir);
+}
+
+FILE* sys_fopen(const char *path, const char *mode) {
+    return fopen(path, mode);
+}
+
+int sys_stat(const char *path, SYS_STAT *s) {
+    return stat(path, s);
+}
+
+int sys_lstat(const char *path, SYS_STAT *s) {
+    return lstat(path, s);
+}
+
+int sys_islink(const char *path) {
+    struct stat s;
+    if(!lstat(path, &s)) {
+        return S_ISLNK(s.st_mode);
+    }
+    return 0;
+}
+
+int sys_rename(const char *oldpath, const char *newpath) {
+    return rename(oldpath, newpath);
+}
+
+int sys_unlink(const char *path) {
+    return unlink(path);
+}
+
+int sys_mkdir(const char *path) {
+    return mkdir(path, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
+}
+
+char* sys_readlink(const char *path, SYS_STAT *s) {
+    char *ret = NULL;
+    
+    off_t l_sz = s->st_size + 16;
+    size_t lnksize = l_sz > 256 ? l_sz : 256;
+    char *lnkbuf = malloc(lnksize);
+    
+    ssize_t len = 0;
+    for(int i=0;i<4;i++) {
+        // we try to read the link at most 4 times
+        // only repeat if the buffer is too small
+        len = readlink(path, lnkbuf, lnksize);
+        if(len < lnksize) {
+            ret = lnkbuf; // success
+            lnkbuf[len] = 0; // terminate buffer
+            break;
+        }
+        lnksize *= 2; // retry with bigger buffer
+        lnkbuf = realloc(lnkbuf, lnksize);
+    }
+    
+    if(!ret) {
+        free(lnkbuf);
+    }
+    return ret;
+}
+
+int sys_symlink(const char *target, const char *linkpath) {
+    int err = symlink(target, linkpath);
+    if(err && errno == EEXIST) {
+        if(unlink(linkpath)) {
+            return 1;
+        }
+        return sys_symlink(target, linkpath);
+    }
+    return err;
+}
+
+int sys_truncate(const char* path, off_t length) {
+    return truncate(path, length);
+}
+
+#else
+/* ---------- Windows implementation ---------- */
+
+#include <windows.h>
+#include <winnls.h>
+#include <shobjidl.h>
+#include <objbase.h>
+#include <objidl.h>
+
+#include <direct.h>
+#include <wchar.h>
+
+void sys_init(void) {
+    HRESULT res =  CoInitialize(NULL);
+    if(res != S_OK) {
+        fprintf(stderr, "Error: CoInitialize failed\n");
+    }
+}
+
+void sys_uninit(void) {
+    CoUninitialize();
+}
+
+static wchar_t* path2winpath(const char *path, int dir, int *newlen) {
+    size_t len = strlen(path);
+    size_t lenadd = dir ? 2 : 0;
+    
+    
+    wchar_t *wpath = calloc(len+lenadd+1, sizeof(wchar_t));
+    int wlen = MultiByteToWideChar(
+            CP_UTF8,
+            0,
+            path,
+            len,
+            wpath,
+            len+1
+            );
+    if(newlen) {
+        *newlen = wlen;
+    }
+    for(int i=0;i<wlen;i++) {
+        if(wpath[i] == L'/') {
+            wpath[i] = L'\\';
+        }
+    }
+    
+    if(dir) {
+        if(wpath[wlen-1] != L'\\') {
+            wpath[wlen++] = L'\\';
+        }
+        wpath[wlen++] = L'*';
+    }
+    wpath[wlen] = 0;
+    
+    return wpath;
+}
+
+static char* winpath2multibyte(const wchar_t *wpath, size_t wlen) {
+    size_t maxlen = wlen * 4;
+    char *ret = malloc(maxlen + 1);
+    int ret_len = WideCharToMultiByte(
+        CP_UTF8,
+        0,
+        wpath,
+        wlen,
+        ret,
+        maxlen,
+        NULL,
+        NULL);
+    ret[ret_len] = 0;
+    return ret;
+}
+
+
+
+SYS_DIR sys_opendir(const char *path) {
+    struct WinDir *dir = malloc(sizeof(struct WinDir));
+    wchar_t *dirpath = path2winpath(path, TRUE, NULL);
+    if(!dirpath) {
+        fprintf(stderr, "Cannot convert path \"%s\" to UTF16\n", path);
+        free(dir);
+        return NULL;
+    }
+    dir->first = 1;
+    dir->handle = FindFirstFileW(dirpath, &dir->finddata);
+    free(dirpath);
+    if(dir->handle == INVALID_HANDLE_VALUE) {
+        free(dir);
+        return NULL;
+    }
+    dir->ent = NULL;
+    return dir;
+}
+
+SysDirEnt* sys_readdir(SYS_DIR dir) {
+    if(dir->ent) {
+        free(dir->ent->name);
+        free(dir->ent);
+        dir->ent = NULL;
+    }
+    if(dir->first) {
+        dir->first = 0;
+    } else {
+        if(FindNextFileW(dir->handle, &dir->finddata) == 0) {
+            return NULL;
+        }
+    }
+    
+    size_t namelen = wcslen(dir->finddata.cFileName);
+    
+    char *name = malloc((namelen+1)*4);
+    int nlen = WideCharToMultiByte(
+            CP_UTF8,
+            0,
+            dir->finddata.cFileName,
+            -1,
+            name,
+            256,
+            NULL,
+            NULL);
+    if(nlen > 0) {
+        name[nlen] = 0;
+        SysDirEnt *ent = malloc(sizeof(SysDirEnt));
+        ent->name = name;
+        dir->ent = ent;
+        return ent;
+    } else {
+        return NULL;
+    }
+}
+
+void sys_closedir(SYS_DIR dir) {
+    if(dir->ent) {
+        free(dir->ent->name);
+        free(dir->ent);
+    }
+    FindClose(dir->handle);
+    free(dir);
+}
+
+FILE* sys_fopen(const char *path, const char *mode) {
+    wchar_t *fpath = path2winpath(path, FALSE, NULL); 
+    wchar_t *fmode = path2winpath(mode, FALSE, NULL);
+    
+    FILE *file = (fpath && fmode) ? _wfopen(fpath, fmode) : NULL;
+    free(fpath);
+    free(fmode);
+    return file;
+}
+
+int sys_stat(const char *path, SYS_STAT *s) {
+    wchar_t *fpath = path2winpath(path, FALSE, NULL);
+    if(!fpath) {
+        fprintf(stderr, "Cannot convert path \"%s\" to UTF16\n", path);
+        return -1;
+    }
+    int ret = _wstat64(fpath, s);
+    free(fpath);
+    return ret;
+}
+
+int sys_lstat(const char *path, SYS_STAT *s) {
+    return sys_stat(path, s); // unsupported on windows
+}
+
+int sys_islink(const char *path) {
+    // don't use symlinks on windows, because it is not really useful
+    // however, we interpret .lnk files as symlinks
+    int ret = 0;
+    
+    cxstring path_s = cx_str(path);
+    if(cx_strsuffix(path_s, CX_STR(".lnk"))) {
+        // looks like a .lnk file
+        // check content
+        IShellLink *sl;
+        HRESULT hres;
+        hres = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, &IID_IShellLinkW, (LPVOID*)&sl);
+        if(SUCCEEDED(hres)) { 
+            IPersistFile *file;
+            hres = sl->lpVtbl->QueryInterface(sl, &IID_IPersistFile, (void**)&file);
+            if(!SUCCEEDED(hres)) {
+                sl->lpVtbl->Release(sl);
+                return ret;
+            }
+            
+            int newlen = 0;
+            wchar_t *wpath = path2winpath(path, 0, &newlen);
+            
+            hres = file->lpVtbl->Load(file, wpath, STGM_READ);
+            if(SUCCEEDED(hres)) {
+                ret = 1;
+                file->lpVtbl->Release(file);
+            }
+            free(wpath);
+            
+            sl->lpVtbl->Release(sl);
+        }
+    }
+    return ret;
+}
+
+int sys_rename(const char *oldpath, const char *newpath) {
+    wchar_t *o = path2winpath(oldpath, FALSE, NULL);
+    wchar_t *n = path2winpath(newpath, FALSE, NULL);
+    if(!o || !n) {
+        return -1;
+    }
+    
+    struct __stat64 s;
+    if(!_wstat64(n, &s)) {
+        if(_wunlink(n)) {
+            fprintf(stderr, "sys_rename: cannot delete existing file: %ls\n", n);
+        }
+    }
+    
+    int ret = _wrename(o, n);
+    free(o);
+    free(n);
+    return ret;
+}
+
+int sys_unlink(const char *path) {
+    wchar_t *wpath = path2winpath(path, FALSE, NULL);
+    if(!wpath) {
+        fprintf(stderr, "sys_unlink: cannot convert path\n");
+        return -1;
+    }
+    int ret = _wunlink(wpath);
+    free(wpath);
+    return ret;
+}
+
+int sys_mkdir(const char *path) {
+    wchar_t *wpath = path2winpath(path, FALSE, NULL);
+    if(!wpath) {
+        fprintf(stderr, "sys_mkdir: cannot convert path\n");
+        return -1;
+    }
+    int ret = _wmkdir(wpath);
+    free(wpath);
+    return ret;
+}
+
+char* sys_readlink(const char *path, SYS_STAT *s) {
+    char *ret_link = NULL;
+    
+    // create COM object for using the ShellLink interface
+    IShellLinkW *sl;
+    HRESULT hres = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, &IID_IShellLinkW, (LPVOID*)&sl);
+    if(!SUCCEEDED(hres)) {
+        return NULL;
+    }
+    
+    IPersistFile *file;
+    hres = sl->lpVtbl->QueryInterface(sl, &IID_IPersistFile, (void**)&file);
+    if(!SUCCEEDED(hres)) {
+        sl->lpVtbl->Release(sl);
+        return NULL;
+    }
+    
+    // load .lnk file
+    int newlen = 0;
+    wchar_t *wpath = path2winpath(path, 0, &newlen);
+    hres = file->lpVtbl->Load(file, wpath, STGM_READ);
+    if(SUCCEEDED(hres)) {
+        WCHAR link_path[MAX_PATH];
+        memset(link_path, 0, MAX_PATH);
+        
+        hres = sl->lpVtbl->Resolve(sl, 0, SLR_NO_UI);
+        if(SUCCEEDED(hres)) {
+            hres = sl->lpVtbl->GetPath(sl, link_path, MAX_PATH, NULL, SLGP_SHORTPATH);
+            if(SUCCEEDED(hres)) {
+                ret_link = winpath2multibyte(link_path, wcslen(link_path));
+            }
+        }
+    }
+    // cleanup
+    free(wpath);
+    file->lpVtbl->Release(file);
+    sl->lpVtbl->Release(sl);
+    
+    return ret_link;
+}
+
+int sys_symlink(const char *target, const char *linkpath) {
+    // convert relative target to absolut path
+    char *link_parent = util_parent_path(linkpath);
+    char *target_unnormalized = util_concat_path(link_parent, target);
+    char *target_normalized = util_path_normalize(target_unnormalized);
+    
+    free(link_parent);
+    free(target_unnormalized);
+    
+    // convert to wchar_t*
+    int wtargetlen = 0;
+    wchar_t *wtarget = path2winpath(target_normalized, FALSE, &wtargetlen);
+    free(target_normalized);
+    if(!wtarget) {
+        return 1;
+    }
+    
+    int wlinkpathlen = 0;
+    wchar_t *wlinkpath = path2winpath(linkpath, FALSE, &wlinkpathlen);
+    if(!wlinkpath) {
+        free(wtarget);
+        return 1;
+    }
+    
+    int ret = 1;
+    
+    // create COM object for using the ShellLink interface
+    IShellLinkW *sl;
+    HRESULT hres = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, &IID_IShellLinkW, (LPVOID*)&sl);
+    if(SUCCEEDED(hres)) {    
+        IPersistFile *file;
+        hres = sl->lpVtbl->QueryInterface(sl, &IID_IPersistFile, (void**)&file);
+        if(SUCCEEDED(hres)) {
+            // try to load the shortcut
+            file->lpVtbl->Load(file, wlinkpath, STGM_READ); // ignore error
+            
+            // set path
+            hres = sl->lpVtbl->SetPath(sl, wtarget);
+            if(SUCCEEDED(hres)) {
+                hres = file->lpVtbl->Save(file, wlinkpath, TRUE);
+                if(SUCCEEDED(hres)) {
+                    // successfully created/modified shortcut
+                    ret = 0; // ok
+                }
+            }
+            
+            file->lpVtbl->Release(file);
+        }
+        
+        sl->lpVtbl->Release(sl);
+    }
+
+    free(wtarget);
+    free(wlinkpath);
+    
+    return ret;
+}
+
+int sys_truncate(const char* path, off_t length) {
+    wchar_t* wpath = path2winpath(path, FALSE, NULL);
+    if (!wpath) {
+        fprintf(stderr, "sys_truncate: cannot convert path\n");
+        return -1;
+    }
+
+    FILE* file = _wfopen(wpath, L"wb");
+    int ret = 1;
+    if (file) {
+        ret = _chsize(fileno(file), length);
+        fclose(file);
+    }
+
+    free(wpath);
+    return ret;
+}
+
+#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/system.h	Mon Jan 29 10:41:00 2024 +0100
@@ -0,0 +1,115 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2024 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.
+ */
+
+#ifndef DAV_SYSTEM_H
+#define DAV_SYSTEM_H
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+
+#ifdef _WIN32
+#include <Windows.h>
+#define mode_t unsigned int
+#else
+#include <dirent.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SysDirEnt {
+    char *name;
+} SysDirEnt;
+    
+#ifdef _WIN32
+struct WinDir {
+    int first;
+    HANDLE handle;
+    WIN32_FIND_DATAW finddata;
+    SysDirEnt *ent;
+};
+#define SYS_DIR struct WinDir*
+#define SYS_STAT struct __stat64
+
+typedef int uid_t;
+typedef int gid_t;
+
+#define SYS_ISLINK(path, mode) sys_islink(path)
+#define SYS_LINK_EXT ".lnk"
+
+#else
+
+typedef struct SysDir {
+    DIR *dir;
+    SysDirEnt *ent;
+} SysDir;
+
+#define SYS_DIR SysDir*
+#define SYS_STAT struct stat
+
+#define SYS_ISLINK(p, s) S_ISLNK(s.st_mode)
+
+#endif
+
+typedef int(*stat_func)(const char*, SYS_STAT *);
+
+void sys_init(void);
+void sys_uninit(void);
+
+void sys_freedirent(SysDirEnt *ent);
+SYS_DIR sys_opendir(const char *path);
+SysDirEnt* sys_readdir(SYS_DIR dir);
+void sys_closedir(SYS_DIR dir);
+
+FILE* sys_fopen(const char *path, const char *mode);
+
+int sys_stat(const char *path, SYS_STAT *s);
+int sys_lstat(const char *path, SYS_STAT *s);
+
+int sys_islink(const char *path);
+
+int sys_rename(const char *oldpath, const char *newpath);
+int sys_unlink(const char *path);
+int sys_mkdir(const char *path);
+
+char* sys_readlink(const char *path, SYS_STAT *s);
+
+int sys_symlink(const char *target, const char *linkpath);
+
+int sys_truncate(const char* path, off_t length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DAV_SYSTEM_H */
+
--- a/application/window.h	Sun Jan 28 20:47:40 2024 +0100
+++ b/application/window.h	Mon Jan 29 10:41:00 2024 +0100
@@ -26,6 +26,22 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef IDAV_WINDOW_H
+#define	IDAV_WINDOW_H
+
 #include <ui/ui.h>
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 UiObject* window_create(void);
+
+
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* IDAV_WINDOW_H */
+
--- a/libidav/config.c	Sun Jan 28 20:47:40 2024 +0100
+++ b/libidav/config.c	Mon Jan 29 10:41:00 2024 +0100
@@ -392,6 +392,7 @@
 
 DavCfgRepository* dav_repository_new(DavConfig *config) {
     DavCfgRepository *repo = cxMalloc(config->mp->allocator, sizeof(DavCfgRepository));
+    memset(repo, 0, sizeof(DavCfgRepository));
     repo->decrypt_name.value = false;
     repo->decrypt_content.value = true;
     repo->decrypt_properties.value = false;
--- a/make/vs/idav/idav.vcxproj	Sun Jan 28 20:47:40 2024 +0100
+++ b/make/vs/idav/idav.vcxproj	Mon Jan 29 10:41:00 2024 +0100
@@ -81,6 +81,9 @@
     <OutDir>$(SolutionDir)..\..\build\vs\$(Platform)\$(Configuration)\</OutDir>
     <IntDir>..\..\..\build\vs\idav\$(Platform)\$(Configuration)\</IntDir>
   </PropertyGroup>
+  <PropertyGroup Label="Vcpkg">
+    <VcpkgEnableManifest>true</VcpkgEnableManifest>
+  </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
@@ -112,7 +115,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <SDLCheck>true</SDLCheck>
+      <SDLCheck>false</SDLCheck>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;UI_WINUI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>..\..\..\ucx;..\vcpkg_installed\x64-windows\x64-windows\include;..\..\..\ui\;..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -146,6 +149,9 @@
     <ProjectReference Include="..\..\..\ui\winui\winui.vcxproj">
       <Project>{59f97886-bf49-4b3f-9ef6-fa7a84f3ab56}</Project>
     </ProjectReference>
+    <ProjectReference Include="..\libidav\libidav.vcxproj">
+      <Project>{c29c0378-6548-48e8-9426-31922515212a}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\ucx\ucx.vcxproj">
       <Project>{27da0164-3475-43e2-a1a4-a5d07d305749}</Project>
     </ProjectReference>
@@ -155,11 +161,17 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\application\application.c" />
+    <ClCompile Include="..\..\..\application\config.c" />
     <ClCompile Include="..\..\..\application\main.c" />
+    <ClCompile Include="..\..\..\application\pwd.c" />
+    <ClCompile Include="..\..\..\application\system.c" />
     <ClCompile Include="..\..\..\application\window.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\application\application.h" />
+    <ClInclude Include="..\..\..\application\config.h" />
+    <ClInclude Include="..\..\..\application\pwd.h" />
+    <ClInclude Include="..\..\..\application\system.h" />
     <ClInclude Include="..\..\..\application\window.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
--- a/make/vs/idav/idav.vcxproj.filters	Sun Jan 28 20:47:40 2024 +0100
+++ b/make/vs/idav/idav.vcxproj.filters	Mon Jan 29 10:41:00 2024 +0100
@@ -28,6 +28,15 @@
     <ClCompile Include="..\..\..\application\window.c">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\application\config.c">
+      <Filter>src</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\application\system.c">
+      <Filter>src</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\application\pwd.c">
+      <Filter>src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\application\application.h">
@@ -36,5 +45,14 @@
     <ClInclude Include="..\..\..\application\window.h">
       <Filter>src</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\application\config.h">
+      <Filter>src</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\application\system.h">
+      <Filter>src</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\application\pwd.h">
+      <Filter>src</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file

mercurial