aboutsummaryrefslogtreecommitdiffstats
path: root/app/nginx/src/http/modules/ngx_http_dav_module.c
diff options
context:
space:
mode:
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_dav_module.c')
-rw-r--r--app/nginx/src/http/modules/ngx_http_dav_module.c1159
1 files changed, 1159 insertions, 0 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_dav_module.c b/app/nginx/src/http/modules/ngx_http_dav_module.c
new file mode 100644
index 0000000..895a52d
--- /dev/null
+++ b/app/nginx/src/http/modules/ngx_http_dav_module.c
@@ -0,0 +1,1159 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+
+#define NGX_HTTP_DAV_OFF 2
+
+
+#define NGX_HTTP_DAV_NO_DEPTH -3
+#define NGX_HTTP_DAV_INVALID_DEPTH -2
+#define NGX_HTTP_DAV_INFINITY_DEPTH -1
+
+
+typedef struct {
+ ngx_uint_t methods;
+ ngx_uint_t access;
+ ngx_uint_t min_delete_depth;
+ ngx_flag_t create_full_put_path;
+} ngx_http_dav_loc_conf_t;
+
+
+typedef struct {
+ ngx_str_t path;
+ size_t len;
+} ngx_http_dav_copy_ctx_t;
+
+
+static ngx_int_t ngx_http_dav_handler(ngx_http_request_t *r);
+
+static void ngx_http_dav_put_handler(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_dav_delete_handler(ngx_http_request_t *r);
+static ngx_int_t ngx_http_dav_delete_path(ngx_http_request_t *r,
+ ngx_str_t *path, ngx_uint_t dir);
+static ngx_int_t ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+static ngx_int_t ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+static ngx_int_t ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+
+static ngx_int_t ngx_http_dav_mkcol_handler(ngx_http_request_t *r,
+ ngx_http_dav_loc_conf_t *dlcf);
+
+static ngx_int_t ngx_http_dav_copy_move_handler(ngx_http_request_t *r);
+static ngx_int_t ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+static ngx_int_t ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx,
+ ngx_str_t *path);
+static ngx_int_t ngx_http_dav_copy_tree_file(ngx_tree_ctx_t *ctx,
+ ngx_str_t *path);
+
+static ngx_int_t ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt);
+static ngx_int_t ngx_http_dav_error(ngx_log_t *log, ngx_err_t err,
+ ngx_int_t not_found, char *failed, u_char *path);
+static ngx_int_t ngx_http_dav_location(ngx_http_request_t *r, u_char *path);
+static void *ngx_http_dav_create_loc_conf(ngx_conf_t *cf);
+static char *ngx_http_dav_merge_loc_conf(ngx_conf_t *cf,
+ void *parent, void *child);
+static ngx_int_t ngx_http_dav_init(ngx_conf_t *cf);
+
+
+static ngx_conf_bitmask_t ngx_http_dav_methods_mask[] = {
+ { ngx_string("off"), NGX_HTTP_DAV_OFF },
+ { ngx_string("put"), NGX_HTTP_PUT },
+ { ngx_string("delete"), NGX_HTTP_DELETE },
+ { ngx_string("mkcol"), NGX_HTTP_MKCOL },
+ { ngx_string("copy"), NGX_HTTP_COPY },
+ { ngx_string("move"), NGX_HTTP_MOVE },
+ { ngx_null_string, 0 }
+};
+
+
+static ngx_command_t ngx_http_dav_commands[] = {
+
+ { ngx_string("dav_methods"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
+ ngx_conf_set_bitmask_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_dav_loc_conf_t, methods),
+ &ngx_http_dav_methods_mask },
+
+ { ngx_string("create_full_put_path"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
+ ngx_conf_set_flag_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_dav_loc_conf_t, create_full_put_path),
+ NULL },
+
+ { ngx_string("min_delete_depth"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_dav_loc_conf_t, min_delete_depth),
+ NULL },
+
+ { ngx_string("dav_access"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123,
+ ngx_conf_set_access_slot,
+ NGX_HTTP_LOC_CONF_OFFSET,
+ offsetof(ngx_http_dav_loc_conf_t, access),
+ NULL },
+
+ ngx_null_command
+};
+
+
+static ngx_http_module_t ngx_http_dav_module_ctx = {
+ NULL, /* preconfiguration */
+ ngx_http_dav_init, /* postconfiguration */
+
+ NULL, /* create main configuration */
+ NULL, /* init main configuration */
+
+ NULL, /* create server configuration */
+ NULL, /* merge server configuration */
+
+ ngx_http_dav_create_loc_conf, /* create location configuration */
+ ngx_http_dav_merge_loc_conf /* merge location configuration */
+};
+
+
+ngx_module_t ngx_http_dav_module = {
+ NGX_MODULE_V1,
+ &ngx_http_dav_module_ctx, /* module context */
+ ngx_http_dav_commands, /* module directives */
+ NGX_HTTP_MODULE, /* module type */
+ NULL, /* init master */
+ NULL, /* init module */
+ NULL, /* init process */
+ NULL, /* init thread */
+ NULL, /* exit thread */
+ NULL, /* exit process */
+ NULL, /* exit master */
+ NGX_MODULE_V1_PADDING
+};
+
+
+static ngx_int_t
+ngx_http_dav_handler(ngx_http_request_t *r)
+{
+ ngx_int_t rc;
+ ngx_http_dav_loc_conf_t *dlcf;
+
+ dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
+
+ if (!(r->method & dlcf->methods)) {
+ return NGX_DECLINED;
+ }
+
+ switch (r->method) {
+
+ case NGX_HTTP_PUT:
+
+ if (r->uri.data[r->uri.len - 1] == '/') {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "cannot PUT to a collection");
+ return NGX_HTTP_CONFLICT;
+ }
+
+ if (r->headers_in.content_range) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "PUT with range is unsupported");
+ return NGX_HTTP_NOT_IMPLEMENTED;
+ }
+
+ r->request_body_in_file_only = 1;
+ r->request_body_in_persistent_file = 1;
+ r->request_body_in_clean_file = 1;
+ r->request_body_file_group_access = 1;
+ r->request_body_file_log_level = 0;
+
+ rc = ngx_http_read_client_request_body(r, ngx_http_dav_put_handler);
+
+ if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
+ return rc;
+ }
+
+ return NGX_DONE;
+
+ case NGX_HTTP_DELETE:
+
+ return ngx_http_dav_delete_handler(r);
+
+ case NGX_HTTP_MKCOL:
+
+ return ngx_http_dav_mkcol_handler(r, dlcf);
+
+ case NGX_HTTP_COPY:
+
+ return ngx_http_dav_copy_move_handler(r);
+
+ case NGX_HTTP_MOVE:
+
+ return ngx_http_dav_copy_move_handler(r);
+ }
+
+ return NGX_DECLINED;
+}
+
+
+static void
+ngx_http_dav_put_handler(ngx_http_request_t *r)
+{
+ size_t root;
+ time_t date;
+ ngx_str_t *temp, path;
+ ngx_uint_t status;
+ ngx_file_info_t fi;
+ ngx_ext_rename_file_t ext;
+ ngx_http_dav_loc_conf_t *dlcf;
+
+ if (r->request_body == NULL || r->request_body->temp_file == NULL) {
+ ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
+ ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ path.len--;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http put filename: \"%s\"", path.data);
+
+ temp = &r->request_body->temp_file->file.name;
+
+ if (ngx_file_info(path.data, &fi) == NGX_FILE_ERROR) {
+ status = NGX_HTTP_CREATED;
+
+ } else {
+ status = NGX_HTTP_NO_CONTENT;
+
+ if (ngx_is_dir(&fi)) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR,
+ "\"%s\" could not be created", path.data);
+
+ if (ngx_delete_file(temp->data) == NGX_FILE_ERROR) {
+ ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
+ ngx_delete_file_n " \"%s\" failed",
+ temp->data);
+ }
+
+ ngx_http_finalize_request(r, NGX_HTTP_CONFLICT);
+ return;
+ }
+ }
+
+ dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
+
+ ext.access = dlcf->access;
+ ext.path_access = dlcf->access;
+ ext.time = -1;
+ ext.create_path = dlcf->create_full_put_path;
+ ext.delete_file = 1;
+ ext.log = r->connection->log;
+
+ if (r->headers_in.date) {
+ date = ngx_parse_http_time(r->headers_in.date->value.data,
+ r->headers_in.date->value.len);
+
+ if (date != NGX_ERROR) {
+ ext.time = date;
+ ext.fd = r->request_body->temp_file->file.fd;
+ }
+ }
+
+ if (ngx_ext_rename_file(temp, &path, &ext) != NGX_OK) {
+ ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ if (status == NGX_HTTP_CREATED) {
+ if (ngx_http_dav_location(r, path.data) != NGX_OK) {
+ ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ r->headers_out.content_length_n = 0;
+ }
+
+ r->headers_out.status = status;
+ r->header_only = 1;
+
+ ngx_http_finalize_request(r, ngx_http_send_header(r));
+ return;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_handler(ngx_http_request_t *r)
+{
+ size_t root;
+ ngx_err_t err;
+ ngx_int_t rc, depth;
+ ngx_uint_t i, d, dir;
+ ngx_str_t path;
+ ngx_file_info_t fi;
+ ngx_http_dav_loc_conf_t *dlcf;
+
+ if (r->headers_in.content_length_n > 0) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "DELETE with body is unsupported");
+ return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+ }
+
+ dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
+
+ if (dlcf->min_delete_depth) {
+ d = 0;
+
+ for (i = 0; i < r->uri.len; /* void */) {
+ if (r->uri.data[i++] == '/') {
+ if (++d >= dlcf->min_delete_depth && i < r->uri.len) {
+ goto ok;
+ }
+ }
+ }
+
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "insufficient URI depth:%i to DELETE", d);
+ return NGX_HTTP_CONFLICT;
+ }
+
+ok:
+
+ if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http delete filename: \"%s\"", path.data);
+
+ if (ngx_link_info(path.data, &fi) == NGX_FILE_ERROR) {
+ err = ngx_errno;
+
+ rc = (err == NGX_ENOTDIR) ? NGX_HTTP_CONFLICT : NGX_HTTP_NOT_FOUND;
+
+ return ngx_http_dav_error(r->connection->log, err,
+ rc, ngx_link_info_n, path.data);
+ }
+
+ if (ngx_is_dir(&fi)) {
+
+ if (r->uri.data[r->uri.len - 1] != '/') {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR,
+ "DELETE \"%s\" failed", path.data);
+ return NGX_HTTP_CONFLICT;
+ }
+
+ depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH);
+
+ if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"Depth\" header must be infinity");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ path.len -= 2; /* omit "/\0" */
+
+ dir = 1;
+
+ } else {
+
+ /*
+ * we do not need to test (r->uri.data[r->uri.len - 1] == '/')
+ * because ngx_link_info("/file/") returned NGX_ENOTDIR above
+ */
+
+ depth = ngx_http_dav_depth(r, 0);
+
+ if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"Depth\" header must be 0 or infinity");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ dir = 0;
+ }
+
+ rc = ngx_http_dav_delete_path(r, &path, dir);
+
+ if (rc == NGX_OK) {
+ return NGX_HTTP_NO_CONTENT;
+ }
+
+ return rc;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_path(ngx_http_request_t *r, ngx_str_t *path, ngx_uint_t dir)
+{
+ char *failed;
+ ngx_tree_ctx_t tree;
+
+ if (dir) {
+
+ tree.init_handler = NULL;
+ tree.file_handler = ngx_http_dav_delete_file;
+ tree.pre_tree_handler = ngx_http_dav_noop;
+ tree.post_tree_handler = ngx_http_dav_delete_dir;
+ tree.spec_handler = ngx_http_dav_delete_file;
+ tree.data = NULL;
+ tree.alloc = 0;
+ tree.log = r->connection->log;
+
+ /* TODO: 207 */
+
+ if (ngx_walk_tree(&tree, path) != NGX_OK) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ if (ngx_delete_dir(path->data) != NGX_FILE_ERROR) {
+ return NGX_OK;
+ }
+
+ failed = ngx_delete_dir_n;
+
+ } else {
+
+ if (ngx_delete_file(path->data) != NGX_FILE_ERROR) {
+ return NGX_OK;
+ }
+
+ failed = ngx_delete_file_n;
+ }
+
+ return ngx_http_dav_error(r->connection->log, ngx_errno,
+ NGX_HTTP_NOT_FOUND, failed, path->data);
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http delete dir: \"%s\"", path->data);
+
+ if (ngx_delete_dir(path->data) == NGX_FILE_ERROR) {
+
+ /* TODO: add to 207 */
+
+ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_dir_n,
+ path->data);
+ }
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http delete file: \"%s\"", path->data);
+
+ if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
+
+ /* TODO: add to 207 */
+
+ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_file_n,
+ path->data);
+ }
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_mkcol_handler(ngx_http_request_t *r, ngx_http_dav_loc_conf_t *dlcf)
+{
+ u_char *p;
+ size_t root;
+ ngx_str_t path;
+
+ if (r->headers_in.content_length_n > 0) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "MKCOL with body is unsupported");
+ return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+ }
+
+ if (r->uri.data[r->uri.len - 1] != '/') {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "MKCOL can create a collection only");
+ return NGX_HTTP_CONFLICT;
+ }
+
+ p = ngx_http_map_uri_to_path(r, &path, &root, 0);
+ if (p == NULL) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ *(p - 1) = '\0';
+ r->uri.len--;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http mkcol path: \"%s\"", path.data);
+
+ if (ngx_create_dir(path.data, ngx_dir_access(dlcf->access))
+ != NGX_FILE_ERROR)
+ {
+ if (ngx_http_dav_location(r, path.data) != NGX_OK) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ return NGX_HTTP_CREATED;
+ }
+
+ return ngx_http_dav_error(r->connection->log, ngx_errno,
+ NGX_HTTP_CONFLICT, ngx_create_dir_n, path.data);
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_move_handler(ngx_http_request_t *r)
+{
+ u_char *p, *host, *last, ch;
+ size_t len, root;
+ ngx_err_t err;
+ ngx_int_t rc, depth;
+ ngx_uint_t overwrite, slash, dir, flags;
+ ngx_str_t path, uri, duri, args;
+ ngx_tree_ctx_t tree;
+ ngx_copy_file_t cf;
+ ngx_file_info_t fi;
+ ngx_table_elt_t *dest, *over;
+ ngx_ext_rename_file_t ext;
+ ngx_http_dav_copy_ctx_t copy;
+ ngx_http_dav_loc_conf_t *dlcf;
+
+ if (r->headers_in.content_length_n > 0) {
+ return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+ }
+
+ dest = r->headers_in.destination;
+
+ if (dest == NULL) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client sent no \"Destination\" header");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ p = dest->value.data;
+ /* there is always '\0' even after empty header value */
+ if (p[0] == '/') {
+ last = p + dest->value.len;
+ goto destination_done;
+ }
+
+ len = r->headers_in.server.len;
+
+ if (len == 0) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client sent no \"Host\" header");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+#if (NGX_HTTP_SSL)
+
+ if (r->connection->ssl) {
+ if (ngx_strncmp(dest->value.data, "https://", sizeof("https://") - 1)
+ != 0)
+ {
+ goto invalid_destination;
+ }
+
+ host = dest->value.data + sizeof("https://") - 1;
+
+ } else
+#endif
+ {
+ if (ngx_strncmp(dest->value.data, "http://", sizeof("http://") - 1)
+ != 0)
+ {
+ goto invalid_destination;
+ }
+
+ host = dest->value.data + sizeof("http://") - 1;
+ }
+
+ if (ngx_strncmp(host, r->headers_in.server.data, len) != 0) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"Destination\" URI \"%V\" is handled by "
+ "different repository than the source URI",
+ &dest->value);
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ last = dest->value.data + dest->value.len;
+
+ for (p = host + len; p < last; p++) {
+ if (*p == '/') {
+ goto destination_done;
+ }
+ }
+
+invalid_destination:
+
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client sent invalid \"Destination\" header: \"%V\"",
+ &dest->value);
+ return NGX_HTTP_BAD_REQUEST;
+
+destination_done:
+
+ duri.len = last - p;
+ duri.data = p;
+ flags = NGX_HTTP_LOG_UNSAFE;
+
+ if (ngx_http_parse_unsafe_uri(r, &duri, &args, &flags) != NGX_OK) {
+ goto invalid_destination;
+ }
+
+ if ((r->uri.data[r->uri.len - 1] == '/' && *(last - 1) != '/')
+ || (r->uri.data[r->uri.len - 1] != '/' && *(last - 1) == '/'))
+ {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "both URI \"%V\" and \"Destination\" URI \"%V\" "
+ "should be either collections or non-collections",
+ &r->uri, &dest->value);
+ return NGX_HTTP_CONFLICT;
+ }
+
+ depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH);
+
+ if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+
+ if (r->method == NGX_HTTP_COPY) {
+ if (depth != 0) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"Depth\" header must be 0 or infinity");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ } else {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"Depth\" header must be infinity");
+ return NGX_HTTP_BAD_REQUEST;
+ }
+ }
+
+ over = r->headers_in.overwrite;
+
+ if (over) {
+ if (over->value.len == 1) {
+ ch = over->value.data[0];
+
+ if (ch == 'T' || ch == 't') {
+ overwrite = 1;
+ goto overwrite_done;
+ }
+
+ if (ch == 'F' || ch == 'f') {
+ overwrite = 0;
+ goto overwrite_done;
+ }
+
+ }
+
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client sent invalid \"Overwrite\" header: \"%V\"",
+ &over->value);
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ overwrite = 1;
+
+overwrite_done:
+
+ if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http copy from: \"%s\"", path.data);
+
+ uri = r->uri;
+ r->uri = duri;
+
+ if (ngx_http_map_uri_to_path(r, &copy.path, &root, 0) == NULL) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ r->uri = uri;
+
+ copy.path.len--; /* omit "\0" */
+
+ if (copy.path.data[copy.path.len - 1] == '/') {
+ slash = 1;
+ copy.path.len--;
+ copy.path.data[copy.path.len] = '\0';
+
+ } else {
+ slash = 0;
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http copy to: \"%s\"", copy.path.data);
+
+ if (ngx_link_info(copy.path.data, &fi) == NGX_FILE_ERROR) {
+ err = ngx_errno;
+
+ if (err != NGX_ENOENT) {
+ return ngx_http_dav_error(r->connection->log, err,
+ NGX_HTTP_NOT_FOUND, ngx_link_info_n,
+ copy.path.data);
+ }
+
+ /* destination does not exist */
+
+ overwrite = 0;
+ dir = 0;
+
+ } else {
+
+ /* destination exists */
+
+ if (ngx_is_dir(&fi) && !slash) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"%V\" could not be %Ved to collection \"%V\"",
+ &r->uri, &r->method_name, &dest->value);
+ return NGX_HTTP_CONFLICT;
+ }
+
+ if (!overwrite) {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EEXIST,
+ "\"%s\" could not be created", copy.path.data);
+ return NGX_HTTP_PRECONDITION_FAILED;
+ }
+
+ dir = ngx_is_dir(&fi);
+ }
+
+ if (ngx_link_info(path.data, &fi) == NGX_FILE_ERROR) {
+ return ngx_http_dav_error(r->connection->log, ngx_errno,
+ NGX_HTTP_NOT_FOUND, ngx_link_info_n,
+ path.data);
+ }
+
+ if (ngx_is_dir(&fi)) {
+
+ if (r->uri.data[r->uri.len - 1] != '/') {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "\"%V\" is collection", &r->uri);
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ if (overwrite) {
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http delete: \"%s\"", copy.path.data);
+
+ rc = ngx_http_dav_delete_path(r, &copy.path, dir);
+
+ if (rc != NGX_OK) {
+ return rc;
+ }
+ }
+ }
+
+ if (ngx_is_dir(&fi)) {
+
+ path.len -= 2; /* omit "/\0" */
+
+ if (r->method == NGX_HTTP_MOVE) {
+ if (ngx_rename_file(path.data, copy.path.data) != NGX_FILE_ERROR) {
+ return NGX_HTTP_CREATED;
+ }
+ }
+
+ if (ngx_create_dir(copy.path.data, ngx_file_access(&fi))
+ == NGX_FILE_ERROR)
+ {
+ return ngx_http_dav_error(r->connection->log, ngx_errno,
+ NGX_HTTP_NOT_FOUND,
+ ngx_create_dir_n, copy.path.data);
+ }
+
+ copy.len = path.len;
+
+ tree.init_handler = NULL;
+ tree.file_handler = ngx_http_dav_copy_tree_file;
+ tree.pre_tree_handler = ngx_http_dav_copy_dir;
+ tree.post_tree_handler = ngx_http_dav_copy_dir_time;
+ tree.spec_handler = ngx_http_dav_noop;
+ tree.data = &copy;
+ tree.alloc = 0;
+ tree.log = r->connection->log;
+
+ if (ngx_walk_tree(&tree, &path) == NGX_OK) {
+
+ if (r->method == NGX_HTTP_MOVE) {
+ rc = ngx_http_dav_delete_path(r, &path, 1);
+
+ if (rc != NGX_OK) {
+ return rc;
+ }
+ }
+
+ return NGX_HTTP_CREATED;
+ }
+
+ } else {
+
+ if (r->method == NGX_HTTP_MOVE) {
+
+ dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
+
+ ext.access = 0;
+ ext.path_access = dlcf->access;
+ ext.time = -1;
+ ext.create_path = 1;
+ ext.delete_file = 0;
+ ext.log = r->connection->log;
+
+ if (ngx_ext_rename_file(&path, &copy.path, &ext) == NGX_OK) {
+ return NGX_HTTP_NO_CONTENT;
+ }
+
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
+
+ cf.size = ngx_file_size(&fi);
+ cf.buf_size = 0;
+ cf.access = dlcf->access;
+ cf.time = ngx_file_mtime(&fi);
+ cf.log = r->connection->log;
+
+ if (ngx_copy_file(path.data, copy.path.data, &cf) == NGX_OK) {
+ return NGX_HTTP_NO_CONTENT;
+ }
+ }
+
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ u_char *p, *dir;
+ size_t len;
+ ngx_http_dav_copy_ctx_t *copy;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy dir: \"%s\"", path->data);
+
+ copy = ctx->data;
+
+ len = copy->path.len + path->len;
+
+ dir = ngx_alloc(len + 1, ctx->log);
+ if (dir == NULL) {
+ return NGX_ABORT;
+ }
+
+ p = ngx_cpymem(dir, copy->path.data, copy->path.len);
+ (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy dir to: \"%s\"", dir);
+
+ if (ngx_create_dir(dir, ngx_dir_access(ctx->access)) == NGX_FILE_ERROR) {
+ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_create_dir_n,
+ dir);
+ }
+
+ ngx_free(dir);
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ u_char *p, *dir;
+ size_t len;
+ ngx_http_dav_copy_ctx_t *copy;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy dir time: \"%s\"", path->data);
+
+ copy = ctx->data;
+
+ len = copy->path.len + path->len;
+
+ dir = ngx_alloc(len + 1, ctx->log);
+ if (dir == NULL) {
+ return NGX_ABORT;
+ }
+
+ p = ngx_cpymem(dir, copy->path.data, copy->path.len);
+ (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy dir time to: \"%s\"", dir);
+
+#if (NGX_WIN32)
+ {
+ ngx_fd_t fd;
+
+ fd = ngx_open_file(dir, NGX_FILE_RDWR, NGX_FILE_OPEN, 0);
+
+ if (fd == NGX_INVALID_FILE) {
+ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n, dir);
+ goto failed;
+ }
+
+ if (ngx_set_file_time(NULL, fd, ctx->mtime) != NGX_OK) {
+ ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+ ngx_set_file_time_n " \"%s\" failed", dir);
+ }
+
+ if (ngx_close_file(fd) == NGX_FILE_ERROR) {
+ ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+ ngx_close_file_n " \"%s\" failed", dir);
+ }
+ }
+
+failed:
+
+#else
+
+ if (ngx_set_file_time(dir, 0, ctx->mtime) != NGX_OK) {
+ ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+ ngx_set_file_time_n " \"%s\" failed", dir);
+ }
+
+#endif
+
+ ngx_free(dir);
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_tree_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+ u_char *p, *file;
+ size_t len;
+ ngx_copy_file_t cf;
+ ngx_http_dav_copy_ctx_t *copy;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy file: \"%s\"", path->data);
+
+ copy = ctx->data;
+
+ len = copy->path.len + path->len;
+
+ file = ngx_alloc(len + 1, ctx->log);
+ if (file == NULL) {
+ return NGX_ABORT;
+ }
+
+ p = ngx_cpymem(file, copy->path.data, copy->path.len);
+ (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+ "http copy file to: \"%s\"", file);
+
+ cf.size = ctx->size;
+ cf.buf_size = 0;
+ cf.access = ctx->access;
+ cf.time = ctx->mtime;
+ cf.log = ctx->log;
+
+ (void) ngx_copy_file(path->data, file, &cf);
+
+ ngx_free(file);
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt)
+{
+ ngx_table_elt_t *depth;
+
+ depth = r->headers_in.depth;
+
+ if (depth == NULL) {
+ return dflt;
+ }
+
+ if (depth->value.len == 1) {
+
+ if (depth->value.data[0] == '0') {
+ return 0;
+ }
+
+ if (depth->value.data[0] == '1') {
+ return 1;
+ }
+
+ } else {
+
+ if (depth->value.len == sizeof("infinity") - 1
+ && ngx_strcmp(depth->value.data, "infinity") == 0)
+ {
+ return NGX_HTTP_DAV_INFINITY_DEPTH;
+ }
+ }
+
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client sent invalid \"Depth\" header: \"%V\"",
+ &depth->value);
+
+ return NGX_HTTP_DAV_INVALID_DEPTH;
+}
+
+
+static ngx_int_t
+ngx_http_dav_error(ngx_log_t *log, ngx_err_t err, ngx_int_t not_found,
+ char *failed, u_char *path)
+{
+ ngx_int_t rc;
+ ngx_uint_t level;
+
+ if (err == NGX_ENOENT || err == NGX_ENOTDIR || err == NGX_ENAMETOOLONG) {
+ level = NGX_LOG_ERR;
+ rc = not_found;
+
+ } else if (err == NGX_EACCES || err == NGX_EPERM) {
+ level = NGX_LOG_ERR;
+ rc = NGX_HTTP_FORBIDDEN;
+
+ } else if (err == NGX_EEXIST) {
+ level = NGX_LOG_ERR;
+ rc = NGX_HTTP_NOT_ALLOWED;
+
+ } else if (err == NGX_ENOSPC) {
+ level = NGX_LOG_CRIT;
+ rc = NGX_HTTP_INSUFFICIENT_STORAGE;
+
+ } else {
+ level = NGX_LOG_CRIT;
+ rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ ngx_log_error(level, log, err, "%s \"%s\" failed", failed, path);
+
+ return rc;
+}
+
+
+static ngx_int_t
+ngx_http_dav_location(ngx_http_request_t *r, u_char *path)
+{
+ u_char *location;
+ ngx_http_core_loc_conf_t *clcf;
+
+ r->headers_out.location = ngx_list_push(&r->headers_out.headers);
+ if (r->headers_out.location == NULL) {
+ return NGX_ERROR;
+ }
+
+ clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+ if (!clcf->alias && clcf->root_lengths == NULL) {
+ location = path + clcf->root.len;
+
+ } else {
+ location = ngx_pnalloc(r->pool, r->uri.len);
+ if (location == NULL) {
+ return NGX_ERROR;
+ }
+
+ ngx_memcpy(location, r->uri.data, r->uri.len);
+ }
+
+ r->headers_out.location->hash = 1;
+ ngx_str_set(&r->headers_out.location->key, "Location");
+ r->headers_out.location->value.len = r->uri.len;
+ r->headers_out.location->value.data = location;
+
+ return NGX_OK;
+}
+
+
+static void *
+ngx_http_dav_create_loc_conf(ngx_conf_t *cf)
+{
+ ngx_http_dav_loc_conf_t *conf;
+
+ conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_dav_loc_conf_t));
+ if (conf == NULL) {
+ return NULL;
+ }
+
+ /*
+ * set by ngx_pcalloc():
+ *
+ * conf->methods = 0;
+ */
+
+ conf->min_delete_depth = NGX_CONF_UNSET_UINT;
+ conf->access = NGX_CONF_UNSET_UINT;
+ conf->create_full_put_path = NGX_CONF_UNSET;
+
+ return conf;
+}
+
+
+static char *
+ngx_http_dav_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
+{
+ ngx_http_dav_loc_conf_t *prev = parent;
+ ngx_http_dav_loc_conf_t *conf = child;
+
+ ngx_conf_merge_bitmask_value(conf->methods, prev->methods,
+ (NGX_CONF_BITMASK_SET|NGX_HTTP_DAV_OFF));
+
+ ngx_conf_merge_uint_value(conf->min_delete_depth,
+ prev->min_delete_depth, 0);
+
+ ngx_conf_merge_uint_value(conf->access, prev->access, 0600);
+
+ ngx_conf_merge_value(conf->create_full_put_path,
+ prev->create_full_put_path, 0);
+
+ return NGX_CONF_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_init(ngx_conf_t *cf)
+{
+ ngx_http_handler_pt *h;
+ ngx_http_core_main_conf_t *cmcf;
+
+ cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
+
+ h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
+ if (h == NULL) {
+ return NGX_ERROR;
+ }
+
+ *h = ngx_http_dav_handler;
+
+ return NGX_OK;
+}