126 lines
3.0 KiB
C
126 lines
3.0 KiB
C
#ifdef __ORCAC__
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# pragma noroot
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#endif
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#include "urlparser.h"
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#include <string.h>
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/*
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* Parse the URL and break it up into its component parts.
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*
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* This handles http URLs and other schemes with the same syntax.
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*
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* It can also handle relative URLs containing an absolute-path reference
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* (i.e. starting with /) and URL-like addresses without the scheme prefix.
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* In these cases, the portions of the URL not provided will be NULL.
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*
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* This modifies the original string passed in, breaking it up into components.
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*/
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URLParts ParseURL(char *url) {
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char *sep, sep2;
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URLParts urlParts = {0};
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sep = strrchr(url, '#');
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if (sep) {
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*sep = '\0';
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urlParts.fragment = sep + 1;
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}
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/* Detect relative URL (absolute-path reference only) */
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if (url[0] == '/') {
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if (url[1] != '/') {
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urlParts.path = url + 1;
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return urlParts;
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} else {
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urlParts.errorFound = 1;
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return urlParts;
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}
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}
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sep = strchr(url, ':');
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if (sep) {
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urlParts.scheme = url;
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*sep = '\0';
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url = sep + 1;
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}
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if (urlParts.scheme != NULL) {
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if (strncmp(url, "//", 2) == 0) {
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url += 2;
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} else {
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urlParts.errorFound = 1;
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return urlParts;
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}
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}
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urlParts.path = strchr(url, '/');
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if (urlParts.path == NULL) {
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urlParts.path = "";
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} else {
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*urlParts.path = '\0';
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urlParts.path++;
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}
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sep = strchr(url, '@');
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if (sep) {
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*sep = '\0';
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urlParts.username = url;
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urlParts.password = strchr(url, ':');
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if (urlParts.password != NULL) {
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*urlParts.password = '\0';
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urlParts.password++;
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}
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url = sep + 1;
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}
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urlParts.host = url;
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/* Handle IPv6 address syntax */
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if (*url == '[') {
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sep = strchr(url, ']');
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if (sep) {
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url = sep + 1;
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} else {
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urlParts.errorFound = 1;
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return urlParts;
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}
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}
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sep = strchr(url, ':');
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if (sep) {
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*sep = '\0';
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urlParts.port = sep + 1;
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}
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return urlParts;
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}
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#ifdef URLPARSER_TEST
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#include <stdio.h>
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int main(int argc, char **argv)
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{
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URLParts urlParts;
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if (argc < 2)
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return 1;
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urlParts = ParseURL(argv[1]);
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printf("scheme: %s\n", urlParts.scheme ? urlParts.scheme : "(NULL)");
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printf("username: %s\n", urlParts.username ? urlParts.username : "(NULL)");
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printf("password: %s\n", urlParts.password ? urlParts.password : "(NULL)");
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printf("host: %s\n", urlParts.host ? urlParts.host : "(NULL)");
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printf("port: %s\n", urlParts.port ? urlParts.port : "(NULL)");
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printf("path: %s\n", urlParts.path ? urlParts.path : "(NULL)");
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printf("fragment: %s\n", urlParts.fragment ? urlParts.fragment : "(NULL)");
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if (urlParts.errorFound) {
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printf("Error found\n");
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}
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}
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#endif
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