| /* Copyright 1999-2005 The Apache Software Foundation or its licensors, as |
| * applicable. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * http_mime.c: Sends/gets MIME headers for requests |
| * |
| * Rob McCool |
| * |
| */ |
| |
| #include "apr.h" |
| #include "apr_strings.h" |
| #include "apr_lib.h" |
| #include "apr_hash.h" |
| |
| #define APR_WANT_STRFUNC |
| #include "apr_want.h" |
| |
| #include "ap_config.h" |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_log.h" |
| #include "http_request.h" |
| #include "http_protocol.h" |
| |
| /* XXXX - fix me / EBCDIC |
| * there was a cludge here which would use its |
| * own version apr_isascii(). Indicating that |
| * on some platforms that might be needed. |
| * |
| * #define OS_ASC(c) (c) -- for mere mortals |
| * or |
| * #define OS_ASC(c) (ebcdic2ascii[c]) -- for dino's |
| * |
| * #define apr_isascii(c) ((OS_ASC(c) & 0x80) == 0) |
| */ |
| |
| /* XXXXX - fix me - See note with NOT_PROXY |
| */ |
| |
| typedef struct attrib_info { |
| char *name; |
| int offset; |
| } attrib_info; |
| |
| /* Information to which an extension can be mapped |
| */ |
| typedef struct extension_info { |
| char *forced_type; /* Additional AddTyped stuff */ |
| char *encoding_type; /* Added with AddEncoding... */ |
| char *language_type; /* Added with AddLanguage... */ |
| char *handler; /* Added with AddHandler... */ |
| char *charset_type; /* Added with AddCharset... */ |
| char *input_filters; /* Added with AddInputFilter... */ |
| char *output_filters; /* Added with AddOutputFilter... */ |
| } extension_info; |
| |
| #define MULTIMATCH_UNSET 0 |
| #define MULTIMATCH_ANY 1 |
| #define MULTIMATCH_NEGOTIATED 2 |
| #define MULTIMATCH_HANDLERS 4 |
| #define MULTIMATCH_FILTERS 8 |
| |
| typedef struct { |
| apr_hash_t *extension_mappings; /* Map from extension name to |
| * extension_info structure */ |
| |
| apr_array_header_t *remove_mappings; /* A simple list, walked once */ |
| |
| char *default_language; /* Language if no AddLanguage ext found */ |
| |
| int multimatch; /* Extensions to include in multiview matching |
| * for filenames, e.g. Filters and Handlers |
| */ |
| int use_path_info; /* If set to 0, only use filename. |
| * If set to 1, append PATH_INFO to filename for |
| * lookups. |
| * If set to 2, this value is unset and is |
| * effectively 0. |
| */ |
| } mime_dir_config; |
| |
| typedef struct param_s { |
| char *attr; |
| char *val; |
| struct param_s *next; |
| } param; |
| |
| typedef struct { |
| const char *type; |
| apr_size_t type_len; |
| const char *subtype; |
| apr_size_t subtype_len; |
| param *param; |
| } content_type; |
| |
| static char tspecial[] = { |
| '(', ')', '<', '>', '@', ',', ';', ':', |
| '\\', '"', '/', '[', ']', '?', '=', |
| '\0' |
| }; |
| |
| module AP_MODULE_DECLARE_DATA mime_module; |
| |
| static void *create_mime_dir_config(apr_pool_t *p, char *dummy) |
| { |
| mime_dir_config *new = apr_palloc(p, sizeof(mime_dir_config)); |
| |
| new->extension_mappings = NULL; |
| new->remove_mappings = NULL; |
| |
| new->default_language = NULL; |
| |
| new->multimatch = MULTIMATCH_UNSET; |
| |
| new->use_path_info = 2; |
| |
| return new; |
| } |
| /* |
| * Overlay one hash table of extension_mappings onto another |
| */ |
| static void *overlay_extension_mappings(apr_pool_t *p, |
| const void *key, |
| apr_ssize_t klen, |
| const void *overlay_val, |
| const void *base_val, |
| const void *data) |
| { |
| extension_info *new_info = apr_palloc(p, sizeof(extension_info)); |
| const extension_info *overlay_info = (const extension_info *)overlay_val; |
| const extension_info *base_info = (const extension_info *)base_val; |
| |
| memcpy(new_info, base_info, sizeof(extension_info)); |
| if (overlay_info->forced_type) { |
| new_info->forced_type = overlay_info->forced_type; |
| } |
| if (overlay_info->encoding_type) { |
| new_info->encoding_type = overlay_info->encoding_type; |
| } |
| if (overlay_info->language_type) { |
| new_info->language_type = overlay_info->language_type; |
| } |
| if (overlay_info->handler) { |
| new_info->handler = overlay_info->handler; |
| } |
| if (overlay_info->charset_type) { |
| new_info->charset_type = overlay_info->charset_type; |
| } |
| if (overlay_info->input_filters) { |
| new_info->input_filters = overlay_info->input_filters; |
| } |
| if (overlay_info->output_filters) { |
| new_info->output_filters = overlay_info->output_filters; |
| } |
| |
| return new_info; |
| } |
| |
| /* Member is the offset within an extension_info of the pointer to reset |
| */ |
| static void remove_items(apr_pool_t *p, apr_array_header_t *remove, |
| apr_hash_t *mappings) |
| { |
| attrib_info *suffix = (attrib_info *) remove->elts; |
| int i; |
| for (i = 0; i < remove->nelts; i++) { |
| extension_info *exinfo = apr_hash_get(mappings, |
| suffix[i].name, |
| APR_HASH_KEY_STRING); |
| if (exinfo && *(const char**)((char *)exinfo + suffix[i].offset)) { |
| extension_info *copyinfo = exinfo; |
| exinfo = (extension_info*)apr_palloc(p, sizeof(*exinfo)); |
| apr_hash_set(mappings, suffix[i].name, |
| APR_HASH_KEY_STRING, exinfo); |
| memcpy(exinfo, copyinfo, sizeof(*exinfo)); |
| *(const char**)((char *)exinfo + suffix[i].offset) = NULL; |
| } |
| } |
| } |
| |
| static void *merge_mime_dir_configs(apr_pool_t *p, void *basev, void *addv) |
| { |
| mime_dir_config *base = (mime_dir_config *)basev; |
| mime_dir_config *add = (mime_dir_config *)addv; |
| mime_dir_config *new = apr_palloc(p, sizeof(mime_dir_config)); |
| |
| if (base->extension_mappings && add->extension_mappings) { |
| new->extension_mappings = apr_hash_merge(p, add->extension_mappings, |
| base->extension_mappings, |
| overlay_extension_mappings, |
| NULL); |
| } |
| else { |
| if (base->extension_mappings == NULL) { |
| new->extension_mappings = add->extension_mappings; |
| } |
| else { |
| new->extension_mappings = base->extension_mappings; |
| } |
| /* We may not be merging the tables, but if we potentially will change |
| * an exinfo member, then we are about to trounce it anyways. |
| * We must have a copy for safety. |
| */ |
| if (new->extension_mappings && add->remove_mappings) { |
| new->extension_mappings = |
| apr_hash_copy(p, new->extension_mappings); |
| } |
| } |
| |
| if (new->extension_mappings) { |
| if (add->remove_mappings) |
| remove_items(p, add->remove_mappings, new->extension_mappings); |
| } |
| new->remove_mappings = NULL; |
| |
| new->default_language = add->default_language ? |
| add->default_language : base->default_language; |
| |
| new->multimatch = (add->multimatch != MULTIMATCH_UNSET) ? |
| add->multimatch : base->multimatch; |
| |
| if ((add->use_path_info & 2) == 0) { |
| new->use_path_info = add->use_path_info; |
| } |
| else { |
| new->use_path_info = base->use_path_info; |
| } |
| |
| return new; |
| } |
| |
| static const char *add_extension_info(cmd_parms *cmd, void *m_, |
| const char *value_, const char* ext) |
| { |
| mime_dir_config *m=m_; |
| extension_info *exinfo; |
| int offset = (int) (long) cmd->info; |
| char *key = apr_pstrdup(cmd->temp_pool, ext); |
| char *value = apr_pstrdup(cmd->pool, value_); |
| ap_str_tolower(value); |
| ap_str_tolower(key); |
| |
| if (*key == '.') { |
| ++key; |
| } |
| if (!m->extension_mappings) { |
| m->extension_mappings = apr_hash_make(cmd->pool); |
| exinfo = NULL; |
| } |
| else { |
| exinfo = (extension_info*)apr_hash_get(m->extension_mappings, key, |
| APR_HASH_KEY_STRING); |
| } |
| if (!exinfo) { |
| exinfo = apr_pcalloc(cmd->pool, sizeof(extension_info)); |
| key = apr_pstrdup(cmd->pool, key); |
| apr_hash_set(m->extension_mappings, key, APR_HASH_KEY_STRING, exinfo); |
| } |
| *(const char**)((char *)exinfo + offset) = value; |
| return NULL; |
| } |
| |
| /* |
| * Note handler names are un-added with each per_dir_config merge. |
| * This keeps the association from being inherited, but not |
| * from being re-added at a subordinate level. |
| */ |
| static const char *remove_extension_info(cmd_parms *cmd, void *m_, |
| const char *ext) |
| { |
| mime_dir_config *m = (mime_dir_config *) m_; |
| attrib_info *suffix; |
| if (*ext == '.') { |
| ++ext; |
| } |
| if (!m->remove_mappings) { |
| m->remove_mappings = apr_array_make(cmd->pool, 4, sizeof(*suffix)); |
| } |
| suffix = (attrib_info *)apr_array_push(m->remove_mappings); |
| suffix->name = apr_pstrdup(cmd->pool, ext); |
| ap_str_tolower(suffix->name); |
| suffix->offset = (int) (long) cmd->info; |
| return NULL; |
| } |
| |
| /* The sole bit of server configuration that the MIME module has is |
| * the name of its config file, so... |
| */ |
| |
| static const char *set_types_config(cmd_parms *cmd, void *dummy, |
| const char *arg) |
| { |
| ap_set_module_config(cmd->server->module_config, &mime_module, |
| (void *)arg); |
| return NULL; |
| } |
| |
| static const char *multiviews_match(cmd_parms *cmd, void *m_, |
| const char *include) |
| { |
| mime_dir_config *m = (mime_dir_config *) m_; |
| |
| if (strcasecmp(include, "Any") == 0) { |
| if (m->multimatch && (m->multimatch & ~MULTIMATCH_ANY)) { |
| return "Any is incompatible with NegotiatedOnly, " |
| "Filters and Handlers"; |
| } |
| m->multimatch |= MULTIMATCH_ANY; |
| } |
| else if (strcasecmp(include, "NegotiatedOnly") == 0) { |
| if (m->multimatch && (m->multimatch & ~MULTIMATCH_NEGOTIATED)) { |
| return "NegotiatedOnly is incompatible with Any, " |
| "Filters and Handlers"; |
| } |
| m->multimatch |= MULTIMATCH_NEGOTIATED; |
| } |
| else if (strcasecmp(include, "Filters") == 0) { |
| if (m->multimatch && (m->multimatch & (MULTIMATCH_NEGOTIATED |
| | MULTIMATCH_ANY))) { |
| return "Filters is incompatible with Any and NegotiatedOnly"; |
| } |
| m->multimatch |= MULTIMATCH_FILTERS; |
| } |
| else if (strcasecmp(include, "Handlers") == 0) { |
| if (m->multimatch && (m->multimatch & (MULTIMATCH_NEGOTIATED |
| | MULTIMATCH_ANY))) { |
| return "Handlers is incompatible with Any and NegotiatedOnly"; |
| } |
| m->multimatch |= MULTIMATCH_HANDLERS; |
| } |
| else { |
| return apr_psprintf(cmd->pool, "Unrecognized option '%s'", include); |
| } |
| |
| return NULL; |
| } |
| |
| static const command_rec mime_cmds[] = |
| { |
| AP_INIT_ITERATE2("AddCharset", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, charset_type), OR_FILEINFO, |
| "a charset (e.g., iso-2022-jp), followed by one or more " |
| "file extensions"), |
| AP_INIT_ITERATE2("AddEncoding", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, encoding_type), OR_FILEINFO, |
| "an encoding (e.g., gzip), followed by one or more file extensions"), |
| AP_INIT_ITERATE2("AddHandler", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, handler), OR_FILEINFO, |
| "a handler name followed by one or more file extensions"), |
| AP_INIT_ITERATE2("AddInputFilter", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, input_filters), OR_FILEINFO, |
| "input filter name (or ; delimited names) followed by one or " |
| "more file extensions"), |
| AP_INIT_ITERATE2("AddLanguage", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, language_type), OR_FILEINFO, |
| "a language (e.g., fr), followed by one or more file extensions"), |
| AP_INIT_ITERATE2("AddOutputFilter", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, output_filters), OR_FILEINFO, |
| "output filter name (or ; delimited names) followed by one or " |
| "more file extensions"), |
| AP_INIT_ITERATE2("AddType", add_extension_info, |
| (void *)APR_OFFSETOF(extension_info, forced_type), OR_FILEINFO, |
| "a mime type followed by one or more file extensions"), |
| AP_INIT_TAKE1("DefaultLanguage", ap_set_string_slot, |
| (void*)APR_OFFSETOF(mime_dir_config, default_language), OR_FILEINFO, |
| "language to use for documents with no other language file extension"), |
| AP_INIT_ITERATE("MultiviewsMatch", multiviews_match, NULL, OR_FILEINFO, |
| "NegotiatedOnly (default), Handlers and/or Filters, or Any"), |
| AP_INIT_ITERATE("RemoveCharset", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, charset_type), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveEncoding", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, encoding_type), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveHandler", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, handler), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveInputFilter", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, input_filters), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveLanguage", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, language_type), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveOutputFilter", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, output_filters), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_ITERATE("RemoveType", remove_extension_info, |
| (void *)APR_OFFSETOF(extension_info, forced_type), OR_FILEINFO, |
| "one or more file extensions"), |
| AP_INIT_TAKE1("TypesConfig", set_types_config, NULL, RSRC_CONF, |
| "the MIME types config file"), |
| AP_INIT_FLAG("ModMimeUsePathInfo", ap_set_flag_slot, |
| (void *)APR_OFFSETOF(mime_dir_config, use_path_info), ACCESS_CONF, |
| "Set to 'yes' to allow mod_mime to use path info for type checking"), |
| {NULL} |
| }; |
| |
| static apr_hash_t *mime_type_extensions; |
| |
| static int mime_post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) |
| { |
| ap_configfile_t *f; |
| char l[MAX_STRING_LEN]; |
| const char *types_confname = ap_get_module_config(s->module_config, |
| &mime_module); |
| apr_status_t status; |
| |
| if (!types_confname) { |
| types_confname = AP_TYPES_CONFIG_FILE; |
| } |
| |
| types_confname = ap_server_root_relative(p, types_confname); |
| if (!types_confname) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, APR_EBADPATH, s, |
| "Invalid mime types config path %s", |
| (const char *)ap_get_module_config(s->module_config, |
| &mime_module)); |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| if ((status = ap_pcfg_openfile(&f, ptemp, types_confname)) |
| != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, status, s, |
| "could not open mime types config file %s.", |
| types_confname); |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| mime_type_extensions = apr_hash_make(p); |
| |
| while (!(ap_cfg_getline(l, MAX_STRING_LEN, f))) { |
| const char *ll = l, *ct; |
| |
| if (l[0] == '#') { |
| continue; |
| } |
| ct = ap_getword_conf(p, &ll); |
| |
| while (ll[0]) { |
| char *ext = ap_getword_conf(p, &ll); |
| ap_str_tolower(ext); |
| apr_hash_set(mime_type_extensions, ext, APR_HASH_KEY_STRING, ct); |
| } |
| } |
| ap_cfg_closefile(f); |
| return OK; |
| } |
| |
| static const char *zap_sp(const char *s) |
| { |
| if (s == NULL) { |
| return (NULL); |
| } |
| if (*s == '\0') { |
| return (s); |
| } |
| |
| /* skip prefixed white space */ |
| for (; *s == ' ' || *s == '\t' || *s == '\n'; s++) |
| ; |
| |
| return (s); |
| } |
| |
| static char *zap_sp_and_dup(apr_pool_t *p, const char *start, |
| const char *end, apr_size_t *len) |
| { |
| while ((start < end) && apr_isspace(*start)) { |
| start++; |
| } |
| while ((end > start) && apr_isspace(*(end - 1))) { |
| end--; |
| } |
| if (len) { |
| *len = end - start; |
| } |
| return apr_pstrmemdup(p, start, end - start); |
| } |
| |
| static int is_token(char c) |
| { |
| int res; |
| |
| res = (apr_isascii(c) && apr_isgraph(c) |
| && (strchr(tspecial, c) == NULL)) ? 1 : -1; |
| return res; |
| } |
| |
| static int is_qtext(char c) |
| { |
| int res; |
| |
| res = (apr_isascii(c) && (c != '"') && (c != '\\') && (c != '\n')) |
| ? 1 : -1; |
| return res; |
| } |
| |
| static int is_quoted_pair(const char *s) |
| { |
| int res = -1; |
| int c; |
| |
| if (((s + 1) != NULL) && (*s == '\\')) { |
| c = (int) *(s + 1); |
| if (apr_isascii(c)) { |
| res = 1; |
| } |
| } |
| return (res); |
| } |
| |
| static content_type *analyze_ct(request_rec *r, const char *s) |
| { |
| const char *cp, *mp; |
| char *attribute, *value; |
| int quoted = 0; |
| server_rec * ss = r->server; |
| apr_pool_t * p = r->pool; |
| |
| content_type *ctp; |
| param *pp, *npp; |
| |
| /* initialize ctp */ |
| ctp = (content_type *)apr_palloc(p, sizeof(content_type)); |
| ctp->type = NULL; |
| ctp->subtype = NULL; |
| ctp->param = NULL; |
| |
| mp = s; |
| |
| /* getting a type */ |
| cp = mp; |
| while (apr_isspace(*cp)) { |
| cp++; |
| } |
| if (!*cp) { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "mod_mime: analyze_ct: cannot get media type from '%s'", |
| (const char *) mp); |
| return (NULL); |
| } |
| ctp->type = cp; |
| do { |
| cp++; |
| } while (*cp && (*cp != '/') && !apr_isspace(*cp) && (*cp != ';')); |
| if (!*cp || (*cp == ';')) { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media type from '%s'", |
| (const char *) mp); |
| return (NULL); |
| } |
| while (apr_isspace(*cp)) { |
| cp++; |
| } |
| if (*cp != '/') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "mod_mime: analyze_ct: cannot get media type from '%s'", |
| (const char *) mp); |
| return (NULL); |
| } |
| ctp->type_len = cp - ctp->type; |
| |
| cp++; /* skip the '/' */ |
| |
| /* getting a subtype */ |
| while (apr_isspace(*cp)) { |
| cp++; |
| } |
| if (!*cp) { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media subtype."); |
| return (NULL); |
| } |
| ctp->subtype = cp; |
| do { |
| cp++; |
| } while (*cp && !apr_isspace(*cp) && (*cp != ';')); |
| ctp->subtype_len = cp - ctp->subtype; |
| while (apr_isspace(*cp)) { |
| cp++; |
| } |
| |
| if (*cp == '\0') { |
| return (ctp); |
| } |
| |
| /* getting parameters */ |
| cp++; /* skip the ';' */ |
| cp = zap_sp(cp); |
| if (cp == NULL || *cp == '\0') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| mp = cp; |
| attribute = NULL; |
| value = NULL; |
| |
| while (cp != NULL && *cp != '\0') { |
| if (attribute == NULL) { |
| if (is_token(*cp) > 0) { |
| cp++; |
| continue; |
| } |
| else if (*cp == ' ' || *cp == '\t' || *cp == '\n') { |
| cp++; |
| continue; |
| } |
| else if (*cp == '=') { |
| attribute = zap_sp_and_dup(p, mp, cp, NULL); |
| if (attribute == NULL || *attribute == '\0') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| cp++; |
| cp = zap_sp(cp); |
| if (cp == NULL || *cp == '\0') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| mp = cp; |
| continue; |
| } |
| else { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| } |
| else { |
| if (mp == cp) { |
| if (*cp == '"') { |
| quoted = 1; |
| cp++; |
| } |
| else { |
| quoted = 0; |
| } |
| } |
| if (quoted > 0) { |
| while (quoted && *cp != '\0') { |
| if (is_qtext(*cp) > 0) { |
| cp++; |
| } |
| else if (is_quoted_pair(cp) > 0) { |
| cp += 2; |
| } |
| else if (*cp == '"') { |
| cp++; |
| while (*cp == ' ' || *cp == '\t' || *cp == '\n') { |
| cp++; |
| } |
| if (*cp != ';' && *cp != '\0') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return(NULL); |
| } |
| quoted = 0; |
| } |
| else { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| } |
| } |
| else { |
| while (1) { |
| if (is_token(*cp) > 0) { |
| cp++; |
| } |
| else if (*cp == '\0' || *cp == ';') { |
| break; |
| } |
| else { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| } |
| } |
| value = zap_sp_and_dup(p, mp, cp, NULL); |
| if (value == NULL || *value == '\0') { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ss, |
| "Cannot get media parameter."); |
| return (NULL); |
| } |
| |
| pp = apr_palloc(p, sizeof(param)); |
| pp->attr = attribute; |
| pp->val = value; |
| pp->next = NULL; |
| |
| if (ctp->param == NULL) { |
| ctp->param = pp; |
| } |
| else { |
| npp = ctp->param; |
| while (npp->next) { |
| npp = npp->next; |
| } |
| npp->next = pp; |
| } |
| quoted = 0; |
| attribute = NULL; |
| value = NULL; |
| if (*cp == '\0') { |
| break; |
| } |
| cp++; |
| mp = cp; |
| } |
| } |
| return (ctp); |
| } |
| |
| /* |
| * find_ct is the hook routine for determining content-type and other |
| * MIME-related metadata. It assumes that r->filename has already been |
| * set and stat has been called for r->finfo. It also assumes that the |
| * non-path base file name is not the empty string unless it is a dir. |
| */ |
| static int find_ct(request_rec *r) |
| { |
| mime_dir_config *conf; |
| apr_array_header_t *exception_list; |
| char *ext; |
| const char *fn, *type, *charset = NULL, *resource_name; |
| int found_metadata = 0; |
| |
| if (r->finfo.filetype == APR_DIR) { |
| ap_set_content_type(r, DIR_MAGIC_TYPE); |
| return OK; |
| } |
| |
| if (!r->filename) { |
| return DECLINED; |
| } |
| |
| conf = (mime_dir_config *)ap_get_module_config(r->per_dir_config, |
| &mime_module); |
| exception_list = apr_array_make(r->pool, 2, sizeof(char *)); |
| |
| /* If use_path_info is explicitly set to on (value & 1 == 1), append. */ |
| if (conf->use_path_info & 1) { |
| resource_name = apr_pstrcat(r->pool, r->filename, r->path_info, NULL); |
| } |
| else { |
| resource_name = r->filename; |
| } |
| |
| /* Always drop the path leading up to the file name. |
| */ |
| if ((fn = ap_strrchr_c(resource_name, '/')) == NULL) { |
| fn = resource_name; |
| } |
| else { |
| ++fn; |
| } |
| |
| /* The exception list keeps track of those filename components that |
| * are not associated with extensions indicating metadata. |
| * The base name is always the first exception (i.e., "txt.html" has |
| * a basename of "txt" even though it might look like an extension). |
| */ |
| ext = ap_getword(r->pool, &fn, '.'); |
| *((const char **)apr_array_push(exception_list)) = ext; |
| |
| /* Parse filename extensions which can be in any order |
| */ |
| while (*fn && (ext = ap_getword(r->pool, &fn, '.'))) { |
| const extension_info *exinfo = NULL; |
| int found; |
| |
| if (*ext == '\0') { /* ignore empty extensions "bad..html" */ |
| continue; |
| } |
| |
| found = 0; |
| |
| ap_str_tolower(ext); |
| |
| if (conf->extension_mappings != NULL) { |
| exinfo = (extension_info*)apr_hash_get(conf->extension_mappings, |
| ext, APR_HASH_KEY_STRING); |
| } |
| |
| if (exinfo == NULL || !exinfo->forced_type) { |
| if ((type = apr_hash_get(mime_type_extensions, ext, |
| APR_HASH_KEY_STRING)) != NULL) { |
| ap_set_content_type(r, (char*) type); |
| found = 1; |
| } |
| } |
| |
| if (exinfo != NULL) { |
| |
| if (exinfo->forced_type) { |
| ap_set_content_type(r, exinfo->forced_type); |
| found = 1; |
| } |
| |
| if (exinfo->charset_type) { |
| charset = exinfo->charset_type; |
| found = 1; |
| } |
| if (exinfo->language_type) { |
| if (!r->content_languages) { |
| r->content_languages = apr_array_make(r->pool, 2, |
| sizeof(char *)); |
| } |
| *((const char **)apr_array_push(r->content_languages)) |
| = exinfo->language_type; |
| found = 1; |
| } |
| if (exinfo->encoding_type) { |
| if (!r->content_encoding) { |
| r->content_encoding = exinfo->encoding_type; |
| } |
| else { |
| /* XXX should eliminate duplicate entities |
| * |
| * ah no. Order is important and double encoding is neither |
| * forbidden nor impossible. -- nd |
| */ |
| r->content_encoding = apr_pstrcat(r->pool, |
| r->content_encoding, |
| ", ", |
| exinfo->encoding_type, |
| NULL); |
| } |
| found = 1; |
| } |
| /* The following extensions are not 'Found'. That is, they don't |
| * make any contribution to metadata negotation, so they must have |
| * been explicitly requested by name. |
| */ |
| if (exinfo->handler && r->proxyreq == PROXYREQ_NONE) { |
| r->handler = exinfo->handler; |
| if (conf->multimatch & MULTIMATCH_HANDLERS) { |
| found = 1; |
| } |
| } |
| /* XXX Two significant problems; 1, we don't check to see if we are |
| * setting redundant filters. 2, we insert these in the types config |
| * hook, which may be too early (dunno.) |
| */ |
| if (exinfo->input_filters && r->proxyreq == PROXYREQ_NONE) { |
| const char *filter, *filters = exinfo->input_filters; |
| while (*filters |
| && (filter = ap_getword(r->pool, &filters, ';'))) { |
| ap_add_input_filter(filter, NULL, r, r->connection); |
| } |
| if (conf->multimatch & MULTIMATCH_FILTERS) { |
| found = 1; |
| } |
| } |
| if (exinfo->output_filters && r->proxyreq == PROXYREQ_NONE) { |
| const char *filter, *filters = exinfo->output_filters; |
| while (*filters |
| && (filter = ap_getword(r->pool, &filters, ';'))) { |
| ap_add_output_filter(filter, NULL, r, r->connection); |
| } |
| if (conf->multimatch & MULTIMATCH_FILTERS) { |
| found = 1; |
| } |
| } |
| } |
| |
| if (found || (conf->multimatch & MULTIMATCH_ANY)) { |
| found_metadata = 1; |
| } |
| else { |
| *((const char **) apr_array_push(exception_list)) = ext; |
| } |
| } |
| |
| /* |
| * Need to set a notes entry on r for unrecognized elements. |
| * Somebody better claim them! If we did absolutely nothing, |
| * skip the notes to alert mod_negotiation we are clueless. |
| */ |
| if (found_metadata) { |
| apr_table_setn(r->notes, "ap-mime-exceptions-list", |
| (void *)exception_list); |
| } |
| |
| if (r->content_type) { |
| content_type *ctp; |
| int override = 0; |
| |
| if ((ctp = analyze_ct(r, r->content_type))) { |
| param *pp = ctp->param; |
| char *base_content_type = apr_palloc(r->pool, ctp->type_len + |
| ctp->subtype_len + |
| sizeof("/")); |
| char *tmp = base_content_type; |
| memcpy(tmp, ctp->type, ctp->type_len); |
| tmp += ctp->type_len; |
| *tmp++ = '/'; |
| memcpy(tmp, ctp->subtype, ctp->subtype_len); |
| tmp += ctp->subtype_len; |
| *tmp = 0; |
| ap_set_content_type(r, base_content_type); |
| while (pp != NULL) { |
| if (charset && !strcmp(pp->attr, "charset")) { |
| if (!override) { |
| ap_set_content_type(r, |
| apr_pstrcat(r->pool, |
| r->content_type, |
| "; charset=", |
| charset, |
| NULL)); |
| override = 1; |
| } |
| } |
| else { |
| ap_set_content_type(r, |
| apr_pstrcat(r->pool, |
| r->content_type, |
| "; ", pp->attr, |
| "=", pp->val, |
| NULL)); |
| } |
| pp = pp->next; |
| } |
| if (charset && !override) { |
| ap_set_content_type(r, apr_pstrcat(r->pool, r->content_type, |
| "; charset=", charset, |
| NULL)); |
| } |
| } |
| } |
| |
| /* Set default language, if none was specified by the extensions |
| * and we have a DefaultLanguage setting in force |
| */ |
| |
| if (!r->content_languages && conf->default_language) { |
| const char **new; |
| |
| if (!r->content_languages) { |
| r->content_languages = apr_array_make(r->pool, 2, sizeof(char *)); |
| } |
| new = (const char **)apr_array_push(r->content_languages); |
| *new = conf->default_language; |
| } |
| |
| if (!r->content_type) { |
| return DECLINED; |
| } |
| |
| return OK; |
| } |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_hook_post_config(mime_post_config,NULL,NULL,APR_HOOK_MIDDLE); |
| ap_hook_type_checker(find_ct,NULL,NULL,APR_HOOK_MIDDLE); |
| /* |
| * this hook seems redundant ... is there any reason a type checker isn't |
| * allowed to do this already? I'd think that fixups in general would be |
| * the last opportunity to get the filters right. |
| * ap_hook_insert_filter(mime_insert_filters,NULL,NULL,APR_HOOK_MIDDLE); |
| */ |
| } |
| |
| module AP_MODULE_DECLARE_DATA mime_module = { |
| STANDARD20_MODULE_STUFF, |
| create_mime_dir_config, /* create per-directory config structure */ |
| merge_mime_dir_configs, /* merge per-directory config structures */ |
| NULL, /* create per-server config structure */ |
| NULL, /* merge per-server config structures */ |
| mime_cmds, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |
