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file read write API implemented

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This commit is contained in:
Bogdan Pilyugin 2024-03-13 19:51:11 +02:00
parent 8f5537fd6a
commit 5aaa2004c3
1 changed files with 38 additions and 19 deletions
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57
src/RawMemAPI.c
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@ -67,9 +67,9 @@ void RawDataHandler(char *argres, int rw)
if (result.elements == 1)
{
operation = atoi((char*) result.pValue);
if (operation < 1 || operation > 2)
if (operation < 1 || operation > 4)
{
snprintf(argres, VAR_MAX_VALUE_LENGTH, "\"ERROR:'operation' value not in [1...2]\"");
snprintf(argres, VAR_MAX_VALUE_LENGTH, "\"ERROR:'operation' value not in [1...4]\"");
return;
}
}
@ -125,11 +125,14 @@ void RawDataHandler(char *argres, int rw)
strcpy(filepath, dirpath);
strcat(filepath, mem_object);
if (stat(filepath, &file_stat) == -1)
if (operation == READ_ORERATION || operation == DELETE_ORERATION)
{
ESP_LOGE("FILE_API", "File does not exist : %s", mem_object);
snprintf(argres, VAR_MAX_VALUE_LENGTH, "\"ERROR:DIR_NOT_FOUND\"");
return;
if (stat(filepath, &file_stat) == -1)
{
ESP_LOGE("FILE_API", "File does not exist : %s", mem_object);
snprintf(argres, VAR_MAX_VALUE_LENGTH, "\"ERROR:DIR_NOT_FOUND\"");
return;
}
}
if (operation == DELETE_ORERATION)
@ -141,21 +144,29 @@ void RawDataHandler(char *argres, int rw)
else if (operation == READ_ORERATION)
{
FILE *f = fopen(filepath, "r");
unsigned char *scr, *dst;
size_t dlen, olen, slen;
if (f == NULL)
{
ESP_LOGE(TAG, "Failed to open file %s for writing", mem_object);
return;
}
char *dat = (char*) malloc(size + 1);
if (dat == NULL)
scr = (unsigned char*) malloc(size + 1);
if (scr == NULL)
{
snprintf(argres, VAR_MAX_VALUE_LENGTH, "\"ERROR: no memory to handle request\"");
return;
}
fseek(f, offset, SEEK_SET);
int read = fread(dat, 1, size, f);
dat[read] = 0x00;
int read = fread(scr, 1, size, f);
scr[read] = 0x00;
slen = read;
fclose(f);
dlen = 0;
mbedtls_base64_encode(NULL, dlen, &olen, scr, slen);
dst = (unsigned char*) malloc(olen);
dlen = olen;
mbedtls_base64_encode(dst, dlen, &olen, scr, slen);
struct jWriteControl jwc;
jwOpen(&jwc, argres, VAR_MAX_VALUE_LENGTH, JW_OBJECT, JW_COMPACT);
@ -163,9 +174,10 @@ void RawDataHandler(char *argres, int rw)
jwObj_string(&jwc, "mem_object", mem_object);
jwObj_int(&jwc, "offset", offset);
jwObj_int(&jwc, "size", read);
jwObj_string(&jwc, "dat", dat);
jwObj_string(&jwc, "dat", (char*) dst);
jwClose(&jwc);
free(dat);
free(scr);
free(dst);
}
else if (operation == APPEND_ORERATION || operation == REPLACE_ORERATION)
{
@ -174,12 +186,13 @@ void RawDataHandler(char *argres, int rw)
{
if (result.bytelen > 0 && result.bytelen <= size)
{
//memcpy(mem_object, (char*) result.pValue, result.bytelen);
//mem_object[result.bytelen] = 0x00;
unsigned char *dst;
size_t dlen, olen;
FILE *f;
if (operation == REPLACE_ORERATION)
FILE *f = fopen(filepath, "w");
else if (operation == APPEND_ORERATION)
FILE *f = fopen(filepath, "a");
f = fopen(filepath, "w");
else
f = fopen(filepath, "a");
if (f == NULL)
{
@ -187,7 +200,14 @@ void RawDataHandler(char *argres, int rw)
return;
}
fseek(f, offset, SEEK_SET);
int write = fwrite((char*) result.pValue, result.bytelen, 1, f);
dlen = 0;
mbedtls_base64_decode(NULL, dlen, &olen, (unsigned char*) result.pValue, (size_t) result.bytelen);
dst = (unsigned char*) malloc(olen);
dlen = olen;
mbedtls_base64_decode(dst, dlen, &olen, (unsigned char*) result.pValue, (size_t) result.bytelen);
int write = fwrite((char*) dst, olen, 1, f);
fclose(f);
free(dst);
struct jWriteControl jwc;
jwOpen(&jwc, argres, VAR_MAX_VALUE_LENGTH, JW_OBJECT, JW_COMPACT);
jwObj_int(&jwc, "operation", operation);
@ -195,7 +215,6 @@ void RawDataHandler(char *argres, int rw)
jwObj_int(&jwc, "offset", offset);
jwObj_int(&jwc, "size", write);
jwClose(&jwc);
}
else
{