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Implement mg_parse_uri
PUBLISHED_FROM=43d7e3f56cd5d45c8070ab55acdc091e61839681
This commit is contained in:
Marko Mikulicic
rojer
parent
77b4fff268
commit
8c394f44b8
142
mongoose.c
142
mongoose.c
@ -3770,6 +3770,148 @@ void mg_enable_multithreading(struct mg_connection *nc) {
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}
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#endif
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#ifdef NS_MODULE_LINES
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#line 1 "./src/uri.c"
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/**/
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#endif
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/*
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* Copyright (c) 2014 Cesanta Software Limited
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* All rights reserved
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*/
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/* Amalgamated: #include "mongoose/src/internal.h" */
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/* Amalgamated: #include "mongoose/src/uri.h" */
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/*
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* scan string until `sep`, keeping track of component boundaries in `res`.
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*
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* `p` will point to the char after the separator or it will be `end`.
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*/
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static void parse_uri_component(const char **p, const char *end, char sep,
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struct mg_str *res) {
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res->p = *p;
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for (; *p < end; (*p)++) {
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if (**p == sep) {
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break;
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}
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}
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res->len = (*p) - res->p;
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(*p)++;
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}
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int mg_parse_uri(struct mg_str uri, struct mg_str *scheme,
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struct mg_str *user_info, struct mg_str *host,
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unsigned int *port, struct mg_str *path, struct mg_str *query,
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struct mg_str *fragment) {
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struct mg_str rscheme = {0, 0}, ruser_info = {0, 0}, rhost = {0, 0},
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rpath = {0, 0}, rquery = {0, 0}, rfragment = {0, 0};
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unsigned int rport = 0;
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enum {
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P_START,
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P_SCHEME_OR_PORT,
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P_USER_INFO,
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P_HOST,
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P_PORT,
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P_REST
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} state = P_START;
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const char *p = uri.p, *end = p + uri.len;
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while (p < end) {
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printf("STATE: %d (%s)\n", state, p);
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switch (state) {
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case P_START:
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/*
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* expecting on of:
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* - `scheme://xxxx`
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* - `xxxx:port`
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* - `xxxx/path`
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*/
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for (; p < end; p++) {
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if (*p == ':') {
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state = P_SCHEME_OR_PORT;
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break;
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} else if (*p == '/') {
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state = P_REST;
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break;
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}
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}
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if (state == P_START || state == P_REST) {
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rhost.p = uri.p;
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rhost.len = p - uri.p;
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}
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break;
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case P_SCHEME_OR_PORT:
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if (end - p >= 3 && memcmp(p, "://", 3) == 0) {
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rscheme.p = uri.p;
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rscheme.len = p - uri.p;
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state = P_USER_INFO;
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p += 2; /* point to last separator char */
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} else {
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rhost.p = uri.p;
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rhost.len = p - uri.p;
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state = P_PORT;
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}
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break;
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case P_USER_INFO:
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p++;
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ruser_info.p = p;
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for (; p < end; p++) {
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if (*p == '@') {
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state = P_HOST;
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break;
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} else if (*p == '/') {
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/* backtrack and parse as host */
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state = P_HOST;
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p = ruser_info.p;
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break;
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}
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}
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ruser_info.len = p - ruser_info.p;
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break;
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case P_HOST:
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if (*p == '@') p++;
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rhost.p = p;
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for (; p < end; p++) {
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if (*p == ':') {
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state = P_PORT;
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break;
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} else if (*p == '/') {
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state = P_REST;
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break;
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}
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}
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rhost.len = p - rhost.p;
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break;
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case P_PORT:
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p++;
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for (; p < end; p++) {
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if (*p == '/') {
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state = P_REST;
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break;
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}
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rport *= 10;
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rport += *p - '0';
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}
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break;
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case P_REST:
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/* `p` points to separator. `path` includes the separator */
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parse_uri_component(&p, end, '?', &rpath);
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parse_uri_component(&p, end, '#', &rquery);
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parse_uri_component(&p, end, '\0', &rfragment);
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break;
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}
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}
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if (scheme != 0) *scheme = rscheme;
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if (user_info != 0) *user_info = ruser_info;
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if (host != 0) *host = rhost;
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if (port != 0) *port = rport;
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if (path != 0) *path = rpath;
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if (query != 0) *query = rquery;
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if (fragment != 0) *fragment = rfragment;
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return 0;
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}
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#ifdef NS_MODULE_LINES
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#line 1 "./src/http.c"
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/**/
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#endif
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49
mongoose.h
49
mongoose.h
@ -1218,6 +1218,55 @@ void mg_if_get_conn_addr(struct mg_connection *nc, int remote,
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* All rights reserved
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*/
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/*
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* === URI
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*/
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#ifndef MG_URI_HEADER_DEFINED
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#define MG_URI_HEADER_DEFINED
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/*
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* Parses an URI and fills string chunks with locations of the respective
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* uri components within the input uri string. NULL pointers will be
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* ignored.
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*
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* General syntax:
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*
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* [scheme://[user_info@]]host[:port][/path][?query][#fragment]
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*
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* Example:
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*
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* foo.com:80
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* tcp://foo.com:1234
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* http://foo.com:80/bar?baz=1
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* https://user:pw@foo.com:443/blah
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*
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* `path` will include the leading slash. `query` won't include the leading `?`.
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* `host` can contain embedded colons if surrounded by square brackets in order
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* to support IPv6 literal addresses.
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*
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*
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* Returns 0 on success, -1 on error.
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*/
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int mg_parse_uri(struct mg_str uri, struct mg_str *scheme,
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struct mg_str *user_info, struct mg_str *host,
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unsigned int *port, struct mg_str *path, struct mg_str *query,
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struct mg_str *fragment);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* MG_URI_HEADER_DEFINED */
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/*
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* Copyright (c) 2014 Cesanta Software Limited
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* All rights reserved
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*/
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/*
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* === Utilities
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*/
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