Function msReturnPage

maptemplate.c:4077–4167

#define MS_TEMPLATE_BUFFER 1024 /* 1k */

int msReturnPage(mapservObj *mapserv, char *html, int mode, char **papszBuffer)
{
  FILE *stream;
  char line[MS_BUFFER_LENGTH], *tmpline;
  int   nBufferSize = 0;
  int   nCurrentSize = 0;
  int   nExpandBuffer = 0;

  ms_regex_t re; /* compiled regular expression to be matched */ 
  char szPath[MS_MAXPATHLEN];

  if(!html) {
    msSetError(MS_WEBERR, "No template specified", "msReturnPage()");
    return MS_FAILURE;
  }

  if(ms_regcomp(&re, MS_TEMPLATE_EXPR, MS_REG_EXTENDED|MS_REG_NOSUB) != 0) {
    msSetError(MS_REGEXERR, NULL, "msReturnPage()");
    return MS_FAILURE;
  }

  if(ms_regexec(&re, html, 0, NULL, 0) != 0) { /* no match */
    ms_regfree(&re);
    msSetError(MS_WEBERR, "Malformed template name (%s).", "msReturnPage()", html);
    return MS_FAILURE;
  }
  ms_regfree(&re);

  if((stream = fopen(msBuildPath(szPath, mapserv->map->mappath, html), "r")) == NULL) {
    msSetError(MS_IOERR, html, "msReturnPage()");
    return MS_FAILURE;
  } 

  if(isValidTemplate(stream, html) != MS_TRUE) {
    fclose(stream);
    return MS_FAILURE;
  }

  if(papszBuffer) {
    if((*papszBuffer) == NULL) {
      (*papszBuffer) = (char *)msSmallMalloc(MS_TEMPLATE_BUFFER);
      (*papszBuffer)[0] = '\0';
      nBufferSize = MS_TEMPLATE_BUFFER;
      nCurrentSize = 0;
      nExpandBuffer = 1;
    } else {
      nCurrentSize = strlen((*papszBuffer));
      nBufferSize = nCurrentSize;
      nExpandBuffer = (nCurrentSize/MS_TEMPLATE_BUFFER) + 1;
    }
  }

  while(fgets(line, MS_BUFFER_LENGTH, stream) != NULL) { /* now on to the end of the file */

    if(strchr(line, '[') != NULL) {
      tmpline = processLine(mapserv, line, stream, mode);
      if(!tmpline)
        return MS_FAILURE;