80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*********************************************************************
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* Utilities for disk mounting & searching
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*********************************************************************/
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#ifdef __ORCAC__
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#pragma noroot
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#endif
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#include <quickdraw.h>
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#include <window.h>
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#include <stdio.h>
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#include "session.h"
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#include "seturl.h"
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#include "http.h"
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#include "readtcp.h"
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#include "tcpconnection.h"
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#include "json.h"
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#include "netdiskerror.h"
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void ShowErrorAlert(enum NetDiskError error, int alertNumber) {
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char *subs[1];
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subs[0] = ErrorString(error);
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InitCursor();
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AlertWindow(awResource+awCString+awButtonLayout,
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(Pointer)subs, alertNumber);
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}
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enum NetDiskError ReadJSONFromURL(char *url, json_value** jsonResult) {
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static Session sess = {0};
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enum NetDiskError result = OPERATION_SUCCESSFUL;
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char *netBuf = NULL; /* Buffer for data received from network */
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*jsonResult = NULL;
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result = SetURL(&sess, url, FALSE, FALSE);
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if (result != OPERATION_SUCCESSFUL)
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goto errorReturn;
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result = DoHTTPRequest(&sess);
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if (result != OPERATION_SUCCESSFUL)
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goto errorReturn;
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/* Limit content to <64k, to avoid any problems with 16-bit computations */
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if (sess.contentLength == 0 || sess.contentLength > 0xffff)
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sess.contentLength = 0xffff;
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netBuf = malloc(sess.contentLength + 1);
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if (netBuf == NULL) {
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result = OUT_OF_MEMORY;
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goto errorReturn;
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}
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InitReadTCP(&sess, sess.contentLength, netBuf);
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while (TryReadTCP(&sess) == rsWaiting)
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/* keep reading */ ;
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sess.contentLength -= sess.readCount;
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*(netBuf + sess.contentLength) = 0;
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if (sess.contentLength == 0) {
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result = NO_RESPONSE;
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goto errorReturn;
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}
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*jsonResult = json_parse(netBuf, sess.contentLength);
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if (*jsonResult == NULL) {
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result = JSON_PARSING_ERROR;
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goto errorReturn;
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}
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errorReturn:
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free(netBuf);
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EndTCPConnection(&sess);
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return result;
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}
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