wirtz
/
esp-link
mirror of https://github.com/jeelabs/esp-link.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Added comments to cgiwebserversetup

Browse Source
pull/193/head
cskarai 8 years ago committed by Thorsten von Eicken
parent 6e01a07459
commit a3b38459ad
1 changed files with 27 additions and 19 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 46
      esp-link/cgiwebserversetup.c

46
esp-link/cgiwebserversetup.c
Unescape View File

@ -9,28 +9,31 @@
#include "config.h" #include "config.h"
#include "web-server.h" #include "web-server.h"
int html_offset = 0; int upload_offset = 0; // flash offset where to store page upload
int html_header_len = 0; int html_header_len = 0; // HTML header length (for uploading HTML files)
// this is the header to add if user uploads HTML file
const char * HTML_HEADER = "<!doctype html><html><head><title>esp-link</title>" const char * HTML_HEADER = "<!doctype html><html><head><title>esp-link</title>"
"<link rel=stylesheet href=\"/pure.css\"><link rel=stylesheet href=\"/style.css\">" "<link rel=stylesheet href=\"/pure.css\"><link rel=stylesheet href=\"/style.css\">"
"<meta name=viewport content=\"width=device-width, initial-scale=1\"><script src=\"/ui.js\">" "<meta name=viewport content=\"width=device-width, initial-scale=1\"><script src=\"/ui.js\">"
"</script><script src=\"/userpage.js\"></script></head><body><div id=layout> "; "</script><script src=\"/userpage.js\"></script></head><body><div id=layout> ";
// multipart callback for uploading user defined pages
int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *data, int dataLen, int position) int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *data, int dataLen, int position)
{ {
switch(cmd) switch(cmd)
{ {
case FILE_START: case FILE_START:
html_offset = 0; upload_offset = 0;
html_header_len = 0; html_header_len = 0;
// simple HTML file // simple HTML file
if( ( dataLen > 5 ) && ( os_strcmp(data + dataLen - 5, ".html") == 0 ) ) if( ( dataLen > 5 ) && ( os_strcmp(data + dataLen - 5, ".html") == 0 ) ) // if the file ends with .html, wrap into an espfs image
{ {
// write the start block on esp-fs // write the start block on esp-fs
int spi_flash_addr = getUserPageSectionStart(); int spi_flash_addr = getUserPageSectionStart();
spi_flash_erase_sector(spi_flash_addr/SPI_FLASH_SEC_SIZE); spi_flash_erase_sector(spi_flash_addr/SPI_FLASH_SEC_SIZE);
EspFsHeader hdr; EspFsHeader hdr;
hdr.magic = 0xFFFFFFFF; hdr.magic = 0xFFFFFFFF; // espfs magic is invalid during upload
hdr.flags = 0; hdr.flags = 0;
hdr.compression = 0; hdr.compression = 0;
@ -41,25 +44,25 @@ int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *da
hdr.nameLen = len; hdr.nameLen = len;
hdr.fileLenComp = hdr.fileLenDecomp = 0xFFFFFFFF; hdr.fileLenComp = hdr.fileLenDecomp = 0xFFFFFFFF;
spi_flash_write( spi_flash_addr + html_offset, (uint32_t *)(&hdr), sizeof(EspFsHeader) ); spi_flash_write( spi_flash_addr + upload_offset, (uint32_t *)(&hdr), sizeof(EspFsHeader) );
html_offset += sizeof(EspFsHeader); upload_offset += sizeof(EspFsHeader);
char nameBuf[len]; char nameBuf[len];
os_memset(nameBuf, 0, len); os_memset(nameBuf, 0, len);
os_memcpy(nameBuf, data, dataLen); os_memcpy(nameBuf, data, dataLen);
spi_flash_write( spi_flash_addr + html_offset, (uint32_t *)(nameBuf), len ); spi_flash_write( spi_flash_addr + upload_offset, (uint32_t *)(nameBuf), len );
html_offset += len; upload_offset += len;
html_header_len = os_strlen(HTML_HEADER) & ~3; // upload only 4 byte aligned part html_header_len = os_strlen(HTML_HEADER) & ~3; // upload only 4 byte aligned part
char buf[html_header_len]; char buf[html_header_len];
os_memcpy(buf, HTML_HEADER, html_header_len); os_memcpy(buf, HTML_HEADER, html_header_len);
spi_flash_write( spi_flash_addr + html_offset, (uint32_t *)(buf), html_header_len ); spi_flash_write( spi_flash_addr + upload_offset, (uint32_t *)(buf), html_header_len );
html_offset += html_header_len; upload_offset += html_header_len;
} }
break; break;
case FILE_DATA: case FILE_DATA:
if(( position < 4 ) && (html_offset == 0)) if(( position < 4 ) && (upload_offset == 0)) // for espfs images check the magic number
{ {
for(int p = position; p < 4; p++ ) for(int p = position; p < 4; p++ )
{ {
@ -68,11 +71,11 @@ int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *da
os_printf("Not an espfs image!\n"); os_printf("Not an espfs image!\n");
return 1; return 1;
} }
data[p - position] = 0xFF; // clean espfs magic to mark as invalid data[p - position] = 0xFF; // espfs magic is invalid during upload
} }
} }
int spi_flash_addr = getUserPageSectionStart() + html_offset + position; int spi_flash_addr = getUserPageSectionStart() + upload_offset + position;
int spi_flash_end_addr = spi_flash_addr + dataLen; int spi_flash_end_addr = spi_flash_addr + dataLen;
if( spi_flash_end_addr + dataLen >= getUserPageSectionEnd() ) if( spi_flash_end_addr + dataLen >= getUserPageSectionEnd() )
{ {
@ -100,10 +103,10 @@ int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *da
break; break;
case FILE_DONE: case FILE_DONE:
{ {
if( html_offset != 0 ) if( html_header_len != 0 )
{ {
// write the terminating block on esp-fs // write the terminating block on esp-fs
int spi_flash_addr = getUserPageSectionStart() + html_offset + position; int spi_flash_addr = getUserPageSectionStart() + upload_offset + position;
uint32_t pad = 0; uint32_t pad = 0;
uint8_t pad_cnt = (4 - position) & 3; uint8_t pad_cnt = (4 - position) & 3;
@ -112,8 +115,9 @@ int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *da
spi_flash_addr += pad_cnt; spi_flash_addr += pad_cnt;
// create ESPFS image
EspFsHeader hdr; EspFsHeader hdr;
hdr.magic = ESPFS_MAGIC; hdr.magic = ESPFS_MAGIC;
hdr.flags = 1; hdr.flags = 1;
hdr.compression = 0; hdr.compression = 0;
hdr.nameLen = 0; hdr.nameLen = 0;
@ -123,24 +127,28 @@ int ICACHE_FLASH_ATTR webServerSetupMultipartCallback(MultipartCmd cmd, char *da
uint32_t totallen = html_header_len + position; uint32_t totallen = html_header_len + position;
// restore ESPFS magic
spi_flash_write( (int)getUserPageSectionStart(), (uint32_t *)&hdr.magic, sizeof(uint32_t) ); spi_flash_write( (int)getUserPageSectionStart(), (uint32_t *)&hdr.magic, sizeof(uint32_t) );
// set file size
spi_flash_write( (int)getUserPageSectionStart() + 8, &totallen, sizeof(uint32_t) ); spi_flash_write( (int)getUserPageSectionStart() + 8, &totallen, sizeof(uint32_t) );
spi_flash_write( (int)getUserPageSectionStart() + 12, &totallen, sizeof(uint32_t) ); spi_flash_write( (int)getUserPageSectionStart() + 12, &totallen, sizeof(uint32_t) );
} }
else else
{ {
// set espfs magic (set it valid)
uint32_t magic = ESPFS_MAGIC; uint32_t magic = ESPFS_MAGIC;
spi_flash_write( (int)getUserPageSectionStart(), (uint32_t *)&magic, sizeof(uint32_t) ); spi_flash_write( (int)getUserPageSectionStart(), (uint32_t *)&magic, sizeof(uint32_t) );
} }
WEB_Init(); WEB_Init(); // reload the content
} }
break; break;
} }
return 0; return 0;
} }
MultipartCtx * webServerContext = NULL; MultipartCtx * webServerContext = NULL; // multipart upload context for web server
// this callback is called when user uploads the web-page
int ICACHE_FLASH_ATTR cgiWebServerSetupUpload(HttpdConnData *connData) int ICACHE_FLASH_ATTR cgiWebServerSetupUpload(HttpdConnData *connData)
{ {
if( webServerContext == NULL ) if( webServerContext == NULL )

Write Preview
Loading…
Cancel
Save