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| version 1.1.1.1, 2013/10/14 10:32:47 | version 1.1.1.3, 2016/11/02 10:35:00 |
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| Line 1 | Line 1 |
| #include "first.h" | |
| #include "base.h" | #include "base.h" |
| #include "log.h" | #include "log.h" |
| #include "buffer.h" | #include "buffer.h" |
| Line 32 typedef struct { | Line 34 typedef struct { |
| typedef struct { | typedef struct { |
| PLUGIN_DATA; | PLUGIN_DATA; |
| buffer *range_buf; | |
| plugin_config **config_storage; | plugin_config **config_storage; |
| plugin_config conf; | plugin_config conf; |
| Line 45 INIT_FUNC(mod_staticfile_init) { | Line 45 INIT_FUNC(mod_staticfile_init) { |
| p = calloc(1, sizeof(*p)); | p = calloc(1, sizeof(*p)); |
| p->range_buf = buffer_init(); | |
| return p; | return p; |
| } | } |
| Line 63 FREE_FUNC(mod_staticfile_free) { | Line 61 FREE_FUNC(mod_staticfile_free) { |
| for (i = 0; i < srv->config_context->used; i++) { | for (i = 0; i < srv->config_context->used; i++) { |
| plugin_config *s = p->config_storage[i]; | plugin_config *s = p->config_storage[i]; |
| if (NULL == s) continue; | |
| array_free(s->exclude_ext); | array_free(s->exclude_ext); |
| free(s); | free(s); |
| } | } |
| free(p->config_storage); | free(p->config_storage); |
| } | } |
| buffer_free(p->range_buf); | |
| free(p); | free(p); |
| Line 91 SETDEFAULTS_FUNC(mod_staticfile_set_defaults) { | Line 90 SETDEFAULTS_FUNC(mod_staticfile_set_defaults) { |
| if (!p) return HANDLER_ERROR; | if (!p) return HANDLER_ERROR; |
| p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *)); | p->config_storage = calloc(1, srv->config_context->used * sizeof(plugin_config *)); |
| for (i = 0; i < srv->config_context->used; i++) { | for (i = 0; i < srv->config_context->used; i++) { |
| data_config const* config = (data_config const*)srv->config_context->data[i]; | |
| plugin_config *s; | plugin_config *s; |
| s = calloc(1, sizeof(plugin_config)); | s = calloc(1, sizeof(plugin_config)); |
| Line 107 SETDEFAULTS_FUNC(mod_staticfile_set_defaults) { | Line 107 SETDEFAULTS_FUNC(mod_staticfile_set_defaults) { |
| p->config_storage[i] = s; | p->config_storage[i] = s; |
| if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) { | if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) { |
| return HANDLER_ERROR; | return HANDLER_ERROR; |
| } | } |
| } | } |
| Line 151 static int mod_staticfile_patch_connection(server *srv | Line 151 static int mod_staticfile_patch_connection(server *srv |
| } | } |
| #undef PATCH | #undef PATCH |
| static int http_response_parse_range(server *srv, connection *con, plugin_data *p) { | |
| int multipart = 0; | |
| int error; | |
| off_t start, end; | |
| const char *s, *minus; | |
| char *boundary = "fkj49sn38dcn3"; | |
| data_string *ds; | |
| stat_cache_entry *sce = NULL; | |
| buffer *content_type = NULL; | |
| if (HANDLER_ERROR == stat_cache_get_entry(srv, con, con->physical.path, &sce)) { | |
| SEGFAULT(); | |
| } | |
| start = 0; | |
| end = sce->st.st_size - 1; | |
| con->response.content_length = 0; | |
| if (NULL != (ds = (data_string *)array_get_element(con->response.headers, "Content-Type"))) { | |
| content_type = ds->value; | |
| } | |
| for (s = con->request.http_range, error = 0; | |
| !error && *s && NULL != (minus = strchr(s, '-')); ) { | |
| char *err; | |
| off_t la, le; | |
| if (s == minus) { | |
| /* -<stop> */ | |
| le = strtoll(s, &err, 10); | |
| if (le == 0) { | |
| /* RFC 2616 - 14.35.1 */ | |
| con->http_status = 416; | |
| error = 1; | |
| } else if (*err == '\0') { | |
| /* end */ | |
| s = err; | |
| end = sce->st.st_size - 1; | |
| start = sce->st.st_size + le; | |
| } else if (*err == ',') { | |
| multipart = 1; | |
| s = err + 1; | |
| end = sce->st.st_size - 1; | |
| start = sce->st.st_size + le; | |
| } else { | |
| error = 1; | |
| } | |
| } else if (*(minus+1) == '\0' || *(minus+1) == ',') { | |
| /* <start>- */ | |
| la = strtoll(s, &err, 10); | |
| if (err == minus) { | |
| /* ok */ | |
| if (*(err + 1) == '\0') { | |
| s = err + 1; | |
| end = sce->st.st_size - 1; | |
| start = la; | |
| } else if (*(err + 1) == ',') { | |
| multipart = 1; | |
| s = err + 2; | |
| end = sce->st.st_size - 1; | |
| start = la; | |
| } else { | |
| error = 1; | |
| } | |
| } else { | |
| /* error */ | |
| error = 1; | |
| } | |
| } else { | |
| /* <start>-<stop> */ | |
| la = strtoll(s, &err, 10); | |
| if (err == minus) { | |
| le = strtoll(minus+1, &err, 10); | |
| /* RFC 2616 - 14.35.1 */ | |
| if (la > le) { | |
| error = 1; | |
| } | |
| if (*err == '\0') { | |
| /* ok, end*/ | |
| s = err; | |
| end = le; | |
| start = la; | |
| } else if (*err == ',') { | |
| multipart = 1; | |
| s = err + 1; | |
| end = le; | |
| start = la; | |
| } else { | |
| /* error */ | |
| error = 1; | |
| } | |
| } else { | |
| /* error */ | |
| error = 1; | |
| } | |
| } | |
| if (!error) { | |
| if (start < 0) start = 0; | |
| /* RFC 2616 - 14.35.1 */ | |
| if (end > sce->st.st_size - 1) end = sce->st.st_size - 1; | |
| if (start > sce->st.st_size - 1) { | |
| error = 1; | |
| con->http_status = 416; | |
| } | |
| } | |
| if (!error) { | |
| if (multipart) { | |
| /* write boundary-header */ | |
| buffer *b; | |
| b = chunkqueue_get_append_buffer(con->write_queue); | |
| buffer_copy_string_len(b, CONST_STR_LEN("\r\n--")); | |
| buffer_append_string(b, boundary); | |
| /* write Content-Range */ | |
| buffer_append_string_len(b, CONST_STR_LEN("\r\nContent-Range: bytes ")); | |
| buffer_append_off_t(b, start); | |
| buffer_append_string_len(b, CONST_STR_LEN("-")); | |
| buffer_append_off_t(b, end); | |
| buffer_append_string_len(b, CONST_STR_LEN("/")); | |
| buffer_append_off_t(b, sce->st.st_size); | |
| buffer_append_string_len(b, CONST_STR_LEN("\r\nContent-Type: ")); | |
| buffer_append_string_buffer(b, content_type); | |
| /* write END-OF-HEADER */ | |
| buffer_append_string_len(b, CONST_STR_LEN("\r\n\r\n")); | |
| con->response.content_length += b->used - 1; | |
| } | |
| chunkqueue_append_file(con->write_queue, con->physical.path, start, end - start + 1); | |
| con->response.content_length += end - start + 1; | |
| } | |
| } | |
| /* something went wrong */ | |
| if (error) return -1; | |
| if (multipart) { | |
| /* add boundary end */ | |
| buffer *b; | |
| b = chunkqueue_get_append_buffer(con->write_queue); | |
| buffer_copy_string_len(b, "\r\n--", 4); | |
| buffer_append_string(b, boundary); | |
| buffer_append_string_len(b, "--\r\n", 4); | |
| con->response.content_length += b->used - 1; | |
| /* set header-fields */ | |
| buffer_copy_string_len(p->range_buf, CONST_STR_LEN("multipart/byteranges; boundary=")); | |
| buffer_append_string(p->range_buf, boundary); | |
| /* overwrite content-type */ | |
| response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(p->range_buf)); | |
| } else { | |
| /* add Content-Range-header */ | |
| buffer_copy_string_len(p->range_buf, CONST_STR_LEN("bytes ")); | |
| buffer_append_off_t(p->range_buf, start); | |
| buffer_append_string_len(p->range_buf, CONST_STR_LEN("-")); | |
| buffer_append_off_t(p->range_buf, end); | |
| buffer_append_string_len(p->range_buf, CONST_STR_LEN("/")); | |
| buffer_append_off_t(p->range_buf, sce->st.st_size); | |
| response_header_insert(srv, con, CONST_STR_LEN("Content-Range"), CONST_BUF_LEN(p->range_buf)); | |
| } | |
| /* ok, the file is set-up */ | |
| return 0; | |
| } | |
| URIHANDLER_FUNC(mod_staticfile_subrequest) { | URIHANDLER_FUNC(mod_staticfile_subrequest) { |
| plugin_data *p = p_d; | plugin_data *p = p_d; |
| size_t k; | size_t k; |
| stat_cache_entry *sce = NULL; | |
| buffer *mtime = NULL; | |
| data_string *ds; | data_string *ds; |
| int allow_caching = 1; | |
| /* someone else has done a decision for us */ | /* someone else has done a decision for us */ |
| if (con->http_status != 0) return HANDLER_GO_ON; | if (con->http_status != 0) return HANDLER_GO_ON; |
| if (con->uri.path->used == 0) return HANDLER_GO_ON; | if (buffer_is_empty(con->uri.path)) return HANDLER_GO_ON; |
| if (con->physical.path->used == 0) return HANDLER_GO_ON; | if (buffer_is_empty(con->physical.path)) return HANDLER_GO_ON; |
| /* someone else has handled this request */ | /* someone else has handled this request */ |
| if (con->mode != DIRECT) return HANDLER_GO_ON; | if (con->mode != DIRECT) return HANDLER_GO_ON; |
| Line 382 URIHANDLER_FUNC(mod_staticfile_subrequest) { | Line 176 URIHANDLER_FUNC(mod_staticfile_subrequest) { |
| mod_staticfile_patch_connection(srv, con, p); | mod_staticfile_patch_connection(srv, con, p); |
| if (p->conf.disable_pathinfo && 0 != con->request.pathinfo->used) { | if (p->conf.disable_pathinfo && !buffer_string_is_empty(con->request.pathinfo)) { |
| if (con->conf.log_request_handling) { | if (con->conf.log_request_handling) { |
| log_error_write(srv, __FILE__, __LINE__, "s", "-- NOT handling file as static file, pathinfo forbidden"); | log_error_write(srv, __FILE__, __LINE__, "s", "-- NOT handling file as static file, pathinfo forbidden"); |
| } | } |
| Line 393 URIHANDLER_FUNC(mod_staticfile_subrequest) { | Line 187 URIHANDLER_FUNC(mod_staticfile_subrequest) { |
| for (k = 0; k < p->conf.exclude_ext->used; k++) { | for (k = 0; k < p->conf.exclude_ext->used; k++) { |
| ds = (data_string *)p->conf.exclude_ext->data[k]; | ds = (data_string *)p->conf.exclude_ext->data[k]; |
| if (ds->value->used == 0) continue; | if (buffer_is_empty(ds->value)) continue; |
| if (buffer_is_equal_right_len(con->physical.path, ds->value, ds->value->used - 1)) { | if (buffer_is_equal_right_len(con->physical.path, ds->value, buffer_string_length(ds->value))) { |
| if (con->conf.log_request_handling) { | if (con->conf.log_request_handling) { |
| log_error_write(srv, __FILE__, __LINE__, "s", "-- NOT handling file as static file, extension forbidden"); | log_error_write(srv, __FILE__, __LINE__, "s", "-- NOT handling file as static file, extension forbidden"); |
| } | } |
| Line 408 URIHANDLER_FUNC(mod_staticfile_subrequest) { | Line 202 URIHANDLER_FUNC(mod_staticfile_subrequest) { |
| log_error_write(srv, __FILE__, __LINE__, "s", "-- handling file as static file"); | log_error_write(srv, __FILE__, __LINE__, "s", "-- handling file as static file"); |
| } | } |
| if (HANDLER_ERROR == stat_cache_get_entry(srv, con, con->physical.path, &sce)) { | if (!p->conf.etags_used) con->etag_flags = 0; |
| con->http_status = 403; | http_response_send_file(srv, con, con->physical.path); |
| log_error_write(srv, __FILE__, __LINE__, "sbsb", | |
| "not a regular file:", con->uri.path, | |
| "->", con->physical.path); | |
| return HANDLER_FINISHED; | |
| } | |
| /* we only handline regular files */ | |
| #ifdef HAVE_LSTAT | |
| if ((sce->is_symlink == 1) && !con->conf.follow_symlink) { | |
| con->http_status = 403; | |
| if (con->conf.log_request_handling) { | |
| log_error_write(srv, __FILE__, __LINE__, "s", "-- access denied due symlink restriction"); | |
| log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path); | |
| } | |
| buffer_reset(con->physical.path); | |
| return HANDLER_FINISHED; | |
| } | |
| #endif | |
| if (!S_ISREG(sce->st.st_mode)) { | |
| con->http_status = 404; | |
| if (con->conf.log_file_not_found) { | |
| log_error_write(srv, __FILE__, __LINE__, "sbsb", | |
| "not a regular file:", con->uri.path, | |
| "->", sce->name); | |
| } | |
| return HANDLER_FINISHED; | |
| } | |
| /* mod_compress might set several data directly, don't overwrite them */ | |
| /* set response content-type, if not set already */ | |
| if (NULL == array_get_element(con->response.headers, "Content-Type")) { | |
| if (buffer_is_empty(sce->content_type)) { | |
| /* we are setting application/octet-stream, but also announce that | |
| * this header field might change in the seconds few requests | |
| * | |
| * This should fix the aggressive caching of FF and the script download | |
| * seen by the first installations | |
| */ | |
| response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("application/octet-stream")); | |
| allow_caching = 0; | |
| } else { | |
| response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type)); | |
| } | |
| } | |
| if (con->conf.range_requests) { | |
| response_header_overwrite(srv, con, CONST_STR_LEN("Accept-Ranges"), CONST_STR_LEN("bytes")); | |
| } | |
| if (allow_caching) { | |
| if (p->conf.etags_used && con->etag_flags != 0 && !buffer_is_empty(sce->etag)) { | |
| if (NULL == array_get_element(con->response.headers, "ETag")) { | |
| /* generate e-tag */ | |
| etag_mutate(con->physical.etag, sce->etag); | |
| response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag)); | |
| } | |
| } | |
| /* prepare header */ | |
| if (NULL == (ds = (data_string *)array_get_element(con->response.headers, "Last-Modified"))) { | |
| mtime = strftime_cache_get(srv, sce->st.st_mtime); | |
| response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime)); | |
| } else { | |
| mtime = ds->value; | |
| } | |
| if (HANDLER_FINISHED == http_response_handle_cachable(srv, con, mtime)) { | |
| return HANDLER_FINISHED; | |
| } | |
| } | |
| if (con->request.http_range && con->conf.range_requests) { | |
| int do_range_request = 1; | |
| /* check if we have a conditional GET */ | |
| if (NULL != (ds = (data_string *)array_get_element(con->request.headers, "If-Range"))) { | |
| /* if the value is the same as our ETag, we do a Range-request, | |
| * otherwise a full 200 */ | |
| if (ds->value->ptr[0] == '"') { | |
| /** | |
| * client wants a ETag | |
| */ | |
| if (!con->physical.etag) { | |
| do_range_request = 0; | |
| } else if (!buffer_is_equal(ds->value, con->physical.etag)) { | |
| do_range_request = 0; | |
| } | |
| } else if (!mtime) { | |
| /** | |
| * we don't have a Last-Modified and can match the If-Range: | |
| * | |
| * sending all | |
| */ | |
| do_range_request = 0; | |
| } else if (!buffer_is_equal(ds->value, mtime)) { | |
| do_range_request = 0; | |
| } | |
| } | |
| if (do_range_request) { | |
| /* content prepared, I'm done */ | |
| con->file_finished = 1; | |
| if (0 == http_response_parse_range(srv, con, p)) { | |
| con->http_status = 206; | |
| } | |
| return HANDLER_FINISHED; | |
| } | |
| } | |
| /* if we are still here, prepare body */ | |
| /* we add it here for all requests | |
| * the HEAD request will drop it afterwards again | |
| */ | |
| http_chunk_append_file(srv, con, con->physical.path, 0, sce->st.st_size); | |
| con->http_status = 200; | |
| con->file_finished = 1; | |
| return HANDLER_FINISHED; | return HANDLER_FINISHED; |
| } | } |