100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
#pragma noroot
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#include <types.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include "session.h"
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#include "urlparser.h"
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#include "strcasecmp.h"
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#include "hostname.h"
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#include "http.h"
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#include "tcpconnection.h"
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#include "seturl.h"
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#define DEFAULT_HTTP_PORT 80
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/* Limit to make sure sizes stay within the range of 16-bit values */
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#define MAX_URL_LENGTH 30000
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enum NetDiskError
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SetURL(Session *sess, char *url, Boolean permissive, Boolean partialOK) {
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if (strlen(url) > MAX_URL_LENGTH) {
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return URL_TOO_LONG;
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}
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for(unsigned int i = 0; url[i] != '\0'; i++) {
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if ((unsigned char)url[i] < ' ') {
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return INVALID_CHARACTER_IN_URL;
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}
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}
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URLParts urlParts = ParseURL(url);
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if (urlParts.errorFound)
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return BAD_URL_SYNTAX;
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if (urlParts.scheme == NULL) {
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if (permissive) {
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urlParts.scheme = "http";
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} else {
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return BAD_URL_SYNTAX;
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}
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} else if (strcasecmp(urlParts.scheme, "http") != 0) {
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return UNSUPPORTED_URL_SCHEME;
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}
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if (urlParts.username != NULL || urlParts.password != NULL) {
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return AUTHENTICATION_NOT_SUPPORTED;
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}
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if (urlParts.fragment != NULL) {
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return FRAGMENT_NOT_SUPPORTED;
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}
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unsigned long portNum;
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char *endPtr;
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if (urlParts.port == NULL || *urlParts.port == '\0') {
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portNum = DEFAULT_HTTP_PORT;
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} else {
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errno = 0;
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portNum = strtoul(urlParts.port, &endPtr, 10);
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if (errno || *endPtr != '\0' || portNum > 0xFFFF) {
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return INVALID_PORT_NUMBER;
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}
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}
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sess->port = portNum;
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if (urlParts.host == NULL) {
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if (!partialOK || sess->hostName[0] == 0) {
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return NO_HOST_SPECIFIED;
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}
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} else if (*urlParts.host == '\0') {
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return NO_HOST_SPECIFIED;
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} else if (*urlParts.host == '[') {
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return IPV6_NOT_SUPPORTED;
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} else {
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size_t len;
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if ((len = strlen(urlParts.host)) > 255) {
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return HOSTNAME_TOO_LONG;
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}
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strcpy(&sess->hostName[1], urlParts.host);
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sess->hostName[0] = len;
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if (!DoLookupName(sess)) {
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return NAME_LOOKUP_FAILED;
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}
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}
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if (!BuildHTTPRequest(sess, urlParts.path)) {
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return OUT_OF_MEMORY;
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}
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/* End any existing TCP connection to old URL */
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EndTCPConnection(sess);
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return OPERATION_SUCCESSFUL;
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}
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