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| -rw-r--r-- | modules/md/md_util.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/modules/md/md_util.h b/modules/md/md_util.h new file mode 100644 index 0000000..e430655 --- /dev/null +++ b/modules/md/md_util.h @@ -0,0 +1,253 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + */ + +#ifndef mod_md_md_util_h +#define mod_md_md_util_h + +#include <stdio.h> +#include <apr_file_io.h> + +struct apr_array_header_t; +struct apr_table_t; + +/**************************************************************************************************/ +/* pool utils */ + +typedef apr_status_t md_util_action(void *baton, apr_pool_t *p, apr_pool_t *ptemp); +typedef apr_status_t md_util_vaction(void *baton, apr_pool_t *p, apr_pool_t *ptemp, va_list ap); + +apr_status_t md_util_pool_do(md_util_action *cb, void *baton, apr_pool_t *p); +apr_status_t md_util_pool_vdo(md_util_vaction *cb, void *baton, apr_pool_t *p, ...); + +/**************************************************************************************************/ +/* data chunks */ + +typedef void md_data_free_fn(void *data); + +typedef struct md_data_t md_data_t; +struct md_data_t { + const char *data; + apr_size_t len; + md_data_free_fn *free_data; +}; + +/** + * Init the data to empty, overwriting any content. + */ +void md_data_null(md_data_t *d); + +/** + * Create a new md_data_t, providing `len` bytes allocated from pool `p`. + */ +md_data_t *md_data_pmake(apr_size_t len, apr_pool_t *p); +/** + * Initialize md_data_t 'd', providing `len` bytes allocated from pool `p`. + */ +void md_data_pinit(md_data_t *d, apr_size_t len, apr_pool_t *p); +/** + * Initialize md_data_t 'd', by borrowing 'len' bytes in `data` without copying. + * `d` will not take ownership. + */ +void md_data_init(md_data_t *d, const char *data, apr_size_t len); + +/** + * Initialize md_data_t 'd', by borrowing the NUL-terminated `str`. + * `d` will not take ownership. + */ +void md_data_init_str(md_data_t *d, const char *str); + +/** + * Free any present data and clear (NULL) it. Passing NULL is permitted. + */ +void md_data_clear(md_data_t *d); + +md_data_t *md_data_make_pcopy(apr_pool_t *p, const char *data, apr_size_t len); + +apr_status_t md_data_assign_copy(md_data_t *dest, const char *src, apr_size_t src_len); +void md_data_assign_pcopy(md_data_t *dest, const char *src, apr_size_t src_len, apr_pool_t *p); + +apr_status_t md_data_to_hex(const char **phex, char separator, + apr_pool_t *p, const md_data_t *data); + +/**************************************************************************************************/ +/* generic arrays */ + +/** + * In an array of pointers, remove all entries == elem. Returns the number + * of entries removed. + */ +int md_array_remove(struct apr_array_header_t *a, void *elem); + +/* + * Remove the ith entry from the array. + * @return != 0 iff an entry was removed, e.g. idx was not outside range + */ +int md_array_remove_at(struct apr_array_header_t *a, int idx); + +/**************************************************************************************************/ +/* string related */ +char *md_util_str_tolower(char *s); + +/** + * Return != 0 iff array is either NULL or empty + */ +int md_array_is_empty(const struct apr_array_header_t *array); + +int md_array_str_index(const struct apr_array_header_t *array, const char *s, + int start, int case_sensitive); + +int md_array_str_eq(const struct apr_array_header_t *a1, + const struct apr_array_header_t *a2, int case_sensitive); + +struct apr_array_header_t *md_array_str_clone(apr_pool_t *p, struct apr_array_header_t *array); + +/** + * Create a new array with duplicates removed. + */ +struct apr_array_header_t *md_array_str_compact(apr_pool_t *p, struct apr_array_header_t *src, + int case_sensitive); + +/** + * Create a new array with all occurrences of <exclude> removed. + */ +struct apr_array_header_t *md_array_str_remove(apr_pool_t *p, struct apr_array_header_t *src, + const char *exclude, int case_sensitive); + +int md_array_str_add_missing(struct apr_array_header_t *dest, + struct apr_array_header_t *src, int case_sensitive); + +/**************************************************************************************************/ +/* process execution */ + +apr_status_t md_util_exec(apr_pool_t *p, const char *cmd, const char * const *argv, + struct apr_array_header_t *env, int *exit_code); + +/**************************************************************************************************/ +/* dns name check */ + +/** + * Is a host/domain name using allowed characters. Not a wildcard. + * @param domain name to check + * @param need_fqdn iff != 0, check that domain contains '.' + * @return != 0 iff domain looks like a non-wildcard, legal DNS domain name. + */ +int md_dns_is_name(apr_pool_t *p, const char *domain, int need_fqdn); + +/** + * Check if the given domain is a valid wildcard DNS name, e.g. *.example.org + * @param domain name to check + * @return != 0 iff domain is a DNS wildcard. + */ +int md_dns_is_wildcard(apr_pool_t *p, const char *domain); + +/** + * Determine iff pattern matches domain, including case-ignore and wildcard domains. + * It is assumed that both names follow dns syntax. + * @return != 0 iff pattern matches domain + */ +int md_dns_matches(const char *pattern, const char *domain); + +/** + * Create a new array with the minimal set out of the given domain names that match all + * of them. If none of the domains is a wildcard, only duplicates are removed. + * If domains contain a wildcard, any name matching the wildcard will be removed. + */ +struct apr_array_header_t *md_dns_make_minimal(apr_pool_t *p, + struct apr_array_header_t *domains); + +/** + * Determine if the given domains cover the name, including wildcard matching. + * @return != 0 iff name is matched by list of domains + */ +int md_dns_domains_match(const apr_array_header_t *domains, const char *name); + +/**************************************************************************************************/ +/* file system related */ + +struct apr_file_t; +struct apr_finfo_t; + +apr_status_t md_util_fopen(FILE **pf, const char *fn, const char *mode); + +apr_status_t md_util_fcreatex(struct apr_file_t **pf, const char *fn, + apr_fileperms_t perms, apr_pool_t *p); + +apr_status_t md_util_path_merge(const char **ppath, apr_pool_t *p, ...); + +apr_status_t md_util_is_dir(const char *path, apr_pool_t *pool); +apr_status_t md_util_is_file(const char *path, apr_pool_t *pool); +apr_status_t md_util_is_unix_socket(const char *path, apr_pool_t *pool); +int md_file_exists(const char *fname, apr_pool_t *p); + +typedef apr_status_t md_util_file_cb(void *baton, struct apr_file_t *f, apr_pool_t *p); + +apr_status_t md_util_freplace(const char *fpath, apr_fileperms_t perms, apr_pool_t *p, + md_util_file_cb *write, void *baton); + +/** + * Remove a file/directory and all files/directories contain up to max_level. If max_level == 0, + * only an empty directory or a file can be removed. + */ +apr_status_t md_util_rm_recursive(const char *fpath, apr_pool_t *p, int max_level); + +typedef apr_status_t md_util_fdo_cb(void *baton, apr_pool_t *p, apr_pool_t *ptemp, + const char *dir, const char *name, + apr_filetype_e ftype); + +apr_status_t md_util_files_do(md_util_fdo_cb *cb, void *baton, apr_pool_t *p, + const char *path, ...); + +/** + * Depth first traversal of directory tree starting at path. + */ +apr_status_t md_util_tree_do(md_util_fdo_cb *cb, void *baton, apr_pool_t *p, + const char *path, int follow_links); + +apr_status_t md_util_ftree_remove(const char *path, apr_pool_t *p); + +apr_status_t md_text_fread8k(const char **ptext, apr_pool_t *p, const char *fpath); +apr_status_t md_text_fcreatex(const char *fpath, apr_fileperms_t + perms, apr_pool_t *p, const char *text); +apr_status_t md_text_freplace(const char *fpath, apr_fileperms_t perms, + apr_pool_t *p, const char *text); + +/**************************************************************************************************/ +/* base64 url encodings */ +const char *md_util_base64url_encode(const md_data_t *data, apr_pool_t *pool); +apr_size_t md_util_base64url_decode(md_data_t *decoded, const char *encoded, + apr_pool_t *pool); + +/**************************************************************************************************/ +/* http/url related */ +const char *md_util_schemify(apr_pool_t *p, const char *s, const char *def_scheme); + +apr_status_t md_util_abs_uri_check(apr_pool_t *p, const char *s, const char **perr); +apr_status_t md_util_abs_http_uri_check(apr_pool_t *p, const char *uri, const char **perr); + +const char *md_link_find_relation(const struct apr_table_t *headers, + apr_pool_t *pool, const char *relation); + +const char *md_util_parse_ct(apr_pool_t *pool, const char *cth); +/**************************************************************************************************/ +/* retry logic */ + +typedef apr_status_t md_util_try_fn(void *baton, int i); + +apr_status_t md_util_try(md_util_try_fn *fn, void *baton, int ignore_errs, + apr_interval_time_t timeout, apr_interval_time_t start_delay, + apr_interval_time_t max_delay, int backoff); + +#endif /* md_util_h */ |