diff options
Diffstat (limited to 'src/http/modules/ngx_http_dav_module.c')
| -rw-r--r-- | src/http/modules/ngx_http_dav_module.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/src/http/modules/ngx_http_dav_module.c b/src/http/modules/ngx_http_dav_module.c new file mode 100644 index 000000000..1b982044f --- /dev/null +++ b/src/http/modules/ngx_http_dav_module.c @@ -0,0 +1,286 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> + + +#define NGX_HTTP_DAV_OFF 2 + +typedef struct { + ngx_uint_t methods; +} ngx_http_dav_loc_conf_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 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_cycle_t *cycle); + + +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_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_null_command +}; + + +ngx_http_module_t ngx_http_dav_module_ctx = { + NULL, /* preconfiguration */ + NULL, /* 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 */ + ngx_http_dav_init, /* 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_str_t path; + ngx_http_dav_loc_conf_t *dlcf; + + /* TODO: Win32 */ + if (r->zero_in_uri) { + return NGX_DECLINED; + } + + 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] == '/') { + return NGX_DECLINED; + } + + r->request_body_in_file_only = 1; + r->request_body_in_persistent_file = 1; + r->request_body_delete_incomplete_file = 1; + r->request_body_file_group_access = 1; + + 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: + + if (r->uri.data[r->uri.len - 1] == '/') { + return NGX_DECLINED; + } + + ngx_http_map_uri_to_path(r, &path, 0); + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http delete filename: \"%s\"", path.data); + + if (ngx_delete_file(path.data) == NGX_FILE_ERROR) { + ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, + ngx_delete_file_n " \"%s\" failed", path.data); + + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + return NGX_HTTP_NO_CONTENT; + } + + return NGX_DECLINED; +} + + +static void +ngx_http_dav_put_handler(ngx_http_request_t *r) +{ + u_char *location; + ngx_err_t err; + ngx_str_t *temp, path; + ngx_uint_t status; + ngx_file_info_t fi; + ngx_http_core_loc_conf_t *clcf; + + ngx_http_map_uri_to_path(r, &path, 0); + + 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) == -1) { + status = NGX_HTTP_CREATED; + + } else { + status = NGX_HTTP_NO_CONTENT; + } + + if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { + goto ok; + } + + err = ngx_errno; + +#if (NGX_WIN32) + + if (err == NGX_EEXIST) { + if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) { + + if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { + goto ok; + } + } + + err = ngx_errno; + } + +#endif + + ngx_log_error(NGX_LOG_CRIT, r->connection->log, err, + ngx_rename_file_n " \"%s\" failed", path.data); + + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return; + +ok: + + if (status == NGX_HTTP_CREATED) { + + r->headers_out.location = ngx_palloc(r->pool, sizeof(ngx_table_elt_t)); + if (r->headers_out.location == NULL) { + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return; + } + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (!clcf->alias && clcf->root_lengths == NULL) { + location = path.data + clcf->root.len; + + } else { + location = ngx_palloc(r->pool, r->uri.len); + if (location == NULL) { + ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return; + } + + ngx_memcpy(location, r->uri.data, r->uri.len); + } + + /* + * we do not need to set the r->headers_out.location->hash and + * r->headers_out.location->key fields + */ + + r->headers_out.location->value.len = r->uri.len; + r->headers_out.location->value.data = location; + + } + + r->headers_out.status = status; + r->header_only = 1; + + ngx_http_finalize_request(r, ngx_http_send_header(r)); + return; +} + + +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 NGX_CONF_ERROR; + } + + /* + * set by ngx_pcalloc(): + * + * conf->methods = 0; + */ + + 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)); + + return NGX_CONF_OK; +} + + +static ngx_int_t +ngx_http_dav_init(ngx_cycle_t *cycle) +{ + ngx_http_handler_pt *h; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_cycle_get_module_main_conf(cycle, 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; +} |