int file_write_http_header(FILE *data_file, const char *filename, int file_size, u16_t *http_hdr_len,
u16_t *http_hdr_chksum, u8_t provide_content_len, int is_compressed)
{
int i = 0;
int response_type = HTTP_HDR_OK;
const char* file_type;
const char *cur_string;
size_t cur_len;
int written = 0;
size_t hdr_len = 0;
u16_t acc;
const char *file_ext;
int j;
u8_t provide_last_modified = includeLastModified;
memset(hdr_buf, 0, sizeof(hdr_buf));
if (useHttp11) {
response_type = HTTP_HDR_OK_11;
}
fprintf(data_file, NEWLINE "/* HTTP header */");
if (strstr(filename, "404") == filename) {
response_type = HTTP_HDR_NOT_FOUND;
if (useHttp11) {
response_type = HTTP_HDR_NOT_FOUND_11;
}
} else if (strstr(filename, "400") == filename) {
response_type = HTTP_HDR_BAD_REQUEST;
if (useHttp11) {
response_type = HTTP_HDR_BAD_REQUEST_11;
}
} else if (strstr(filename, "501") == filename) {
response_type = HTTP_HDR_NOT_IMPL;
if (useHttp11) {
response_type = HTTP_HDR_NOT_IMPL_11;
}
}
cur_string = g_psHTTPHeaderStrings[response_type];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
cur_string = serverID;
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
file_ext = filename;
if (file_ext != NULL) {
while(strstr(file_ext, ".") != NULL) {
file_ext = strstr(file_ext, ".");
file_ext++;
}
}
if ((file_ext == NULL) || (*file_ext == 0)) {
printf("failed to get extension for file \"%s\", using default.\n", filename);
file_type = HTTP_HDR_DEFAULT_TYPE;
} else {
file_type = NULL;
for (j = 0; j < NUM_HTTP_HEADERS; j++) {
if (!strcmp(file_ext, g_psHTTPHeaders[j].extension)) {
file_type = g_psHTTPHeaders[j].content_type;
break;
}
}
if (file_type == NULL) {
printf("failed to get file type for extension \"%s\", using default.\n", file_ext);
file_type = HTTP_HDR_DEFAULT_TYPE;
}
}
/* Content-Length is used for persistent connections in HTTP/1.1 but also for
download progress in older versions
@todo: just use a big-enough buffer and let the HTTPD send spaces? */
if (provide_content_len) {
char intbuf[MAX_PATH_LEN];
int content_len = file_size;
memset(intbuf, 0, sizeof(intbuf));
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONTENT_LENGTH];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s%d\r\n\" (%d+ bytes) */" NEWLINE, cur_string, content_len, cur_len+2);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
_itoa(content_len, intbuf, 10);
strcat(intbuf, "\r\n");
cur_len = strlen(intbuf);
written += file_put_ascii(data_file, intbuf, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], intbuf, cur_len);
hdr_len += cur_len;
}
}
if (provide_last_modified) {
char modbuf[256];
struct stat stat_data;
struct tm* t;
memset(modbuf, 0, sizeof(modbuf));
memset(&stat_data, 0, sizeof(stat_data));
cur_string = modbuf;
strcpy(modbuf, "Last-Modified: ");
if (stat(filename, &stat_data) != 0) {
printf("stat(%s) failed with error %d\n", filename, errno);
exit(-1);
}
t = gmtime(&stat_data.st_mtime);
if (t == NULL) {
printf("gmtime() failed with error %d\n", errno);
exit(-1);
}
strftime(&modbuf[15], sizeof(modbuf)-15, "%a, %d %b %Y %H:%M:%S GMT", t);
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\"\r\n\" (%d+ bytes) */" NEWLINE, cur_string, cur_len+2);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
modbuf[0] = 0;
strcat(modbuf, "\r\n");
cur_len = strlen(modbuf);
written += file_put_ascii(data_file, modbuf, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], modbuf, cur_len);
hdr_len += cur_len;
}
}
/* HTTP/1.1 implements persistent connections */
if (useHttp11) {
if (provide_content_len) {
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_KEEPALIVE];
} else {
/* no Content-Length available, so a persistent connection is no possible
because the client does not know the data length */
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_CLOSE];
}
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
}
#if MAKEFS_SUPPORT_DEFLATE
if (is_compressed) {
/* tell the client about the deflate encoding */
LWIP_ASSERT("error", deflateNonSsiFiles);
cur_string = "Content-Encoding: deflate\r\n";
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
}
#else
LWIP_UNUSED_ARG(is_compressed);
#endif
/* write content-type, ATTENTION: this includes the double-CRLF! */
cur_string = file_type;
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
/* ATTENTION: headers are done now (double-CRLF has been written!) */
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
LWIP_ASSERT("hdr_len <= 0xffff", hdr_len <= 0xffff);
LWIP_ASSERT("strlen(hdr_buf) == hdr_len", strlen(hdr_buf) == hdr_len);
acc = ~inet_chksum(hdr_buf, (u16_t)hdr_len);
*http_hdr_len = (u16_t)hdr_len;
*http_hdr_chksum = acc;
}
return written;
}
int file_write_http_header(FILE *data_file, const char *filename, int file_size,
u16_t *http_hdr_len, u16_t *http_hdr_chksum)
{
int i = 0;
int response_type = HTTP_HDR_OK;
int file_type = HTTP_HDR_DEFAULT_TYPE;
const char *cur_string;
size_t cur_len;
int written = 0;
size_t hdr_len = 0;
u16_t acc;
const char *file_ext;
int j;
memset(hdr_buf, 0, sizeof(hdr_buf));
if (useHttp11) {
response_type = HTTP_HDR_OK_11;
}
fprintf(data_file, NEWLINE "/* HTTP header */");
if (strstr(filename, "404") == filename) {
response_type = HTTP_HDR_NOT_FOUND;
if (useHttp11) {
response_type = HTTP_HDR_NOT_FOUND_11;
}
} else if (strstr(filename, "400") == filename) {
response_type = HTTP_HDR_BAD_REQUEST;
if (useHttp11) {
response_type = HTTP_HDR_BAD_REQUEST_11;
}
} else if (strstr(filename, "501") == filename) {
response_type = HTTP_HDR_NOT_IMPL;
if (useHttp11) {
response_type = HTTP_HDR_NOT_IMPL_11;
}
}
cur_string = g_psHTTPHeaderStrings[response_type];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
cur_string = serverID;
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
file_ext = filename;
while(strstr(file_ext, ".") != NULL) {
file_ext = strstr(file_ext, ".");
file_ext++;
}
if((file_ext == NULL) || (*file_ext == 0)) {
printf("failed to get extension for file \"%s\", using default.\n", filename);
} else {
for(j = 0; j < NUM_HTTP_HEADERS; j++) {
if(!strcmp(file_ext, g_psHTTPHeaders[j].extension)) {
file_type = g_psHTTPHeaders[j].headerIndex;
break;
}
}
if (j >= NUM_HTTP_HEADERS) {
printf("failed to get file type for extension \"%s\", using default.\n", file_ext);
file_type = HTTP_HDR_DEFAULT_TYPE;
}
}
if (useHttp11) {
char intbuf[MAX_PATH_LEN];
memset(intbuf, 0, sizeof(intbuf));
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONTENT_LENGTH];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s%d\r\n\" (%d+ bytes) */" NEWLINE, cur_string, file_size, cur_len+2);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
_itoa(file_size, intbuf, 10);
strcat(intbuf, "\r\n");
cur_len = strlen(intbuf);
written += file_put_ascii(data_file, intbuf, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], intbuf, cur_len);
hdr_len += cur_len;
}
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_CLOSE];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
}
cur_string = g_psHTTPHeaderStrings[file_type];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
LWIP_ASSERT("hdr_len <= 0xffff", hdr_len <= 0xffff);
LWIP_ASSERT("strlen(hdr_buf) == hdr_len", strlen(hdr_buf) == hdr_len);
acc = ~inet_chksum(hdr_buf, (u16_t)hdr_len);
*http_hdr_len = (u16_t)hdr_len;
*http_hdr_chksum = acc;
}
return written;
}
int process_file(FILE *data_file, FILE *struct_file, const char *filename)
{
char varname[MAX_PATH_LEN];
int i = 0;
char qualifiedName[MAX_PATH_LEN];
int file_size;
u16_t http_hdr_chksum = 0;
u16_t http_hdr_len = 0;
int chksum_count = 0;
u8_t flags = 0;
const char* flags_str;
u8_t has_content_len;
u8_t* file_data;
int is_compressed = 0;
/* create qualified name (@todo: prepend slash or not?) */
sprintf(qualifiedName,"%s/%s", curSubdir, filename);
/* create C variable name */
strcpy(varname, qualifiedName);
/* convert slashes & dots to underscores */
fix_filename_for_c(varname, MAX_PATH_LEN);
register_filename(varname);
#if ALIGN_PAYLOAD
/* to force even alignment of array, type 1 */
fprintf(data_file, "#if FSDATA_FILE_ALIGNMENT==1" NEWLINE);
fprintf(data_file, "static const " PAYLOAD_ALIGN_TYPE " dummy_align_%s = %d;" NEWLINE, varname, payload_alingment_dummy_counter++);
fprintf(data_file, "#endif" NEWLINE);
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, "static const unsigned char FSDATA_ALIGN_PRE data_%s[] FSDATA_ALIGN_POST = {" NEWLINE, varname);
/* encode source file name (used by file system, not returned to browser) */
fprintf(data_file, "/* %s (%d chars) */" NEWLINE, qualifiedName, strlen(qualifiedName)+1);
file_put_ascii(data_file, qualifiedName, strlen(qualifiedName)+1, &i);
#if ALIGN_PAYLOAD
/* pad to even number of bytes to assure payload is on aligned boundary */
while(i % PAYLOAD_ALIGNMENT != 0) {
fprintf(data_file, "0x%02.2x,", 0);
i++;
}
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, NEWLINE);
has_content_len = !is_ssi_file(filename);
file_data = get_file_data(filename, &file_size, includeHttpHeader && has_content_len, &is_compressed);
if (includeHttpHeader) {
file_write_http_header(data_file, filename, file_size, &http_hdr_len, &http_hdr_chksum, has_content_len, is_compressed);
flags = FS_FILE_FLAGS_HEADER_INCLUDED;
if (has_content_len) {
flags |= FS_FILE_FLAGS_HEADER_PERSISTENT;
}
}
if (precalcChksum) {
chksum_count = write_checksums(struct_file, varname, http_hdr_len, http_hdr_chksum, file_data, file_size);
}
/* build declaration of struct fsdata_file in temp file */
fprintf(struct_file, "const struct fsdata_file file_%s[] = { {" NEWLINE, varname);
fprintf(struct_file, "file_%s," NEWLINE, lastFileVar);
fprintf(struct_file, "data_%s," NEWLINE, varname);
fprintf(struct_file, "data_%s + %d," NEWLINE, varname, i);
fprintf(struct_file, "sizeof(data_%s) - %d," NEWLINE, varname, i);
switch(flags)
{
case(FS_FILE_FLAGS_HEADER_INCLUDED):
flags_str = "FS_FILE_FLAGS_HEADER_INCLUDED";
break;
case(FS_FILE_FLAGS_HEADER_PERSISTENT):
flags_str = "FS_FILE_FLAGS_HEADER_PERSISTENT";
break;
case(FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT):
flags_str = "FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT";
break;
default:
flags_str = "0";
break;
}
fprintf(struct_file, "%s," NEWLINE, flags_str);
if (precalcChksum) {
fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE);
fprintf(struct_file, "%d, chksums_%s," NEWLINE, chksum_count, varname);
fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE);
}
fprintf(struct_file, "}};" NEWLINE NEWLINE);
strcpy(lastFileVar, varname);
/* write actual file contents */
i = 0;
fprintf(data_file, NEWLINE "/* raw file data (%d bytes) */" NEWLINE, file_size);
process_file_data(data_file, file_data, file_size);
fprintf(data_file, "};" NEWLINE NEWLINE);
free(file_data);
return 0;
}
int process_file(FILE *data_file, FILE *struct_file, const char *filename)
{
char *pch;
char varname[MAX_PATH_LEN];
int i = 0;
char qualifiedName[MAX_PATH_LEN];
int file_size;
u16_t http_hdr_chksum = 0;
u16_t http_hdr_len = 0;
int chksum_count = 0;
/* create qualified name (TODO: prepend slash or not?) */
sprintf(qualifiedName,"%s/%s", curSubdir, filename);
/* create C variable name */
strcpy(varname, qualifiedName);
/* convert slashes & dots to underscores */
while ((pch = strpbrk(varname, "./\\")) != NULL) {
*pch = '_';
}
#if ALIGN_PAYLOAD
/* to force even alignment of array */
fprintf(data_file, "static const " PAYLOAD_ALIGN_TYPE " dummy_align_%s = %d;" NEWLINE, varname, payload_alingment_dummy_counter++);
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, "static const unsigned char data_%s[] = {" NEWLINE, varname);
/* encode source file name (used by file system, not returned to browser) */
fprintf(data_file, "/* %s (%d chars) */" NEWLINE, qualifiedName, strlen(qualifiedName)+1);
file_put_ascii(data_file, qualifiedName, strlen(qualifiedName)+1, &i);
#if ALIGN_PAYLOAD
/* pad to even number of bytes to assure payload is on aligned boundary */
while(i % PAYLOAD_ALIGNMENT != 0) {
fprintf(data_file, "0x%02.2x,", 0);
i++;
}
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, NEWLINE);
file_size = get_file_size(filename);
if (includeHttpHeader) {
file_write_http_header(data_file, filename, file_size, &http_hdr_len, &http_hdr_chksum);
}
if (precalcChksum) {
chksum_count = write_checksums(struct_file, filename, varname, http_hdr_len, http_hdr_chksum);
}
/* build declaration of struct fsdata_file in temp file */
fprintf(struct_file, "const struct fsdata_file file_%s[] = { {" NEWLINE, varname);
fprintf(struct_file, "file_%s," NEWLINE, lastFileVar);
fprintf(struct_file, "data_%s," NEWLINE, varname);
fprintf(struct_file, "data_%s + %d," NEWLINE, varname, i);
fprintf(struct_file, "sizeof(data_%s) - %d," NEWLINE, varname, i);
fprintf(struct_file, "%d," NEWLINE, includeHttpHeader);
if (precalcChksum) {
fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE);
fprintf(struct_file, "%d, chksums_%s," NEWLINE, chksum_count, varname);
fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE);
}
fprintf(struct_file, "}};" NEWLINE NEWLINE);
strcpy(lastFileVar, varname);
/* write actual file contents */
i = 0;
fprintf(data_file, NEWLINE "/* raw file data (%d bytes) */" NEWLINE, file_size);
process_file_data(filename, data_file);
fprintf(data_file, "};" NEWLINE NEWLINE);
return 0;
}
