198 lines
4.6 KiB
C
198 lines
4.6 KiB
C
/*
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* r3.h
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* Copyright (C) 2014 c9s <c9s@c9smba.local>
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*
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* Distributed under terms of the MIT license.
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*/
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#ifndef R3_NODE_H
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#define R3_NODE_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pcre.h>
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#include <stdbool.h>
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#include "config.h"
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#include "r3_define.h"
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#include "str_array.h"
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#include "match_entry.h"
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#ifdef ENABLE_JSON
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#include <json-c/json.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct _edge;
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struct _node;
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struct _route;
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typedef struct _edge edge;
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typedef struct _node node;
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typedef struct _route route;
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struct _node {
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edge ** edges;
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// edge ** edge_table;
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// almost less than 255
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unsigned char edge_len;
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unsigned char compare_type;
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unsigned char endpoint;
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unsigned char ov_cnt;
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// <-- here comes a char[3] struct padding for alignment since we have 5 char above.
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/** compile-time variables here.... **/
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/* the combined regexp pattern string from pattern_tokens */
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pcre * pcre_pattern;
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pcre_extra * pcre_extra;
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route ** routes;
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char * combined_pattern;
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// almost less than 255
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unsigned char edge_cap;
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unsigned char route_len;
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unsigned char route_cap;
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/**
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* the pointer of route data
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*/
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void * data;
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};
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#define node_edge_pattern(node,i) node->edges[i]->pattern
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#define node_edge_pattern_len(node,i) node->edges[i]->pattern_len
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struct _edge {
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char * pattern;
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node * child;
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unsigned short pattern_len; // 2 byte
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unsigned char opcode; // 1 byte
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unsigned char has_slug; // 1 bit
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};
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struct _route {
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char * path;
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int path_len;
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int request_method; // can be (GET || POST)
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char * host; // required host name
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int host_len;
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void * data;
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char * remote_addr_pattern;
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int remote_addr_pattern_len;
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};
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node * r3_tree_create(int cap);
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node * r3_node_create();
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void r3_tree_free(node * tree);
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edge * r3_node_connectl(node * n, const char * pat, int len, int strdup, node *child);
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#define r3_node_connect(n, pat, child) r3_node_connectl(n, pat, strlen(pat), 0, child)
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edge * r3_node_find_edge(const node * n, const char * pat);
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void r3_node_append_edge(node *n, edge *child);
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node * r3_tree_insert_pathl(node *tree, const char *path, int path_len, void * data);
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route * r3_tree_insert_routel(node *tree, int method, const char *path, int path_len, void *data);
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#define r3_tree_insert_path(n,p,d) r3_tree_insert_pathl_(n,p,strlen(p), NULL, d)
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#define r3_tree_insert_route(n,method,path,data) r3_tree_insert_routel(n, method, path, strlen(path), data)
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/**
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* The private API to insert a path
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*/
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node * r3_tree_insert_pathl_(node *tree, const char *path, int path_len, route * route, void * data);
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void r3_tree_dump(const node * n, int level);
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edge * r3_node_find_edge_str(const node * n, const char * str, int str_len);
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int r3_tree_compile(node *n, char** errstr);
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int r3_tree_compile_patterns(node * n, char** errstr);
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node * r3_tree_matchl(const node * n, const char * path, int path_len, match_entry * entry);
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#define r3_tree_match(n,p,e) r3_tree_matchl(n,p, strlen(p), e)
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// node * r3_tree_match_entry(node * n, match_entry * entry);
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#define r3_tree_match_entry(n, entry) r3_tree_matchl(n, entry->path, entry->path_len, entry)
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bool r3_node_has_slug_edges(const node *n);
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edge * r3_edge_create(const char * pattern, int pattern_len, node * child);
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node * r3_edge_branch(edge *e, int dl);
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void r3_edge_free(edge * edge);
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route * r3_route_create(const char * path);
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route * r3_route_createl(const char * path, int path_len);
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int r3_route_cmp(const route *r1, const match_entry *r2);
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void r3_node_append_route(node * n, route * route);
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void r3_route_free(route * route);
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route * r3_tree_match_route(const node *n, match_entry * entry);
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#define METHOD_GET 2
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#define METHOD_POST 2<<1
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#define METHOD_PUT 2<<2
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#define METHOD_DELETE 2<<3
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#define METHOD_PATCH 2<<4
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#define METHOD_HEAD 2<<5
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#define METHOD_OPTIONS 2<<6
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int r3_pattern_to_opcode(const char * pattern, int pattern_len);
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enum { NODE_COMPARE_STR, NODE_COMPARE_PCRE, NODE_COMPARE_OPCODE };
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enum { OP_EXPECT_MORE_DIGITS = 1, OP_EXPECT_MORE_WORDS, OP_EXPECT_NOSLASH, OP_EXPECT_NODASH, OP_EXPECT_MORE_ALPHA };
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#ifdef ENABLE_JSON
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json_object * r3_edge_to_json_object(const edge * e);
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json_object * r3_node_to_json_object(const node * n);
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json_object * r3_route_to_json_object(const route * r);
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const char * r3_node_to_json_string_ext(const node * n, int options);
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const char * r3_node_to_json_pretty_string(const node * n);
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const char * r3_node_to_json_string(const node * n);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* !R3_NODE_H */
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