Question

我想整合flickr api，通过我的iphone应用程序将图像上传到flickr网站。我已经下载了代码snap＆amp; Runfrom github。我在我的项目中集成了相同的SDK代码。但它在转换为ARC时向我显示错误。我有读线问题。这些错误在OFUtilities.m文件中

  static NSData *OFSha1(NSData *inData)
{
NSMutableData *result = [NSMutableData dataWithLength:CC_SHA1_DIGEST_LENGTH];
CC_SHA1_CTX context;
CC_SHA1_Init(&context);
CC_SHA1_Update(&context, [inData bytes], (CC_LONG)[inData length]);
CC_SHA1_Final([result mutableBytes], &context);
return result;
}

在上面的方法中我收到此错误“呼叫CC_SHA1_Final没有匹配功能”

NSString *OFHMACSha1Base64(NSString *inKey, NSString *inMessage)
{
NSData *keyData = [inKey dataUsingEncoding:NSUTF8StringEncoding];

if ([keyData length] > CC_SHA1_BLOCK_BYTES) {
    keyData = OFSha1(keyData);
}

if ([keyData length] < CC_SHA1_BLOCK_BYTES) {
    NSUInteger padSize = CC_SHA1_BLOCK_BYTES - [keyData length];

    NSMutableData *paddedData = [NSMutableData dataWithData:keyData];
    [paddedData appendData:[NSMutableData dataWithLength:padSize]];
    keyData  = paddedData;
}

NSMutableData *oKeyPad = [NSMutableData dataWithLength:CC_SHA1_BLOCK_BYTES];
NSMutableData *iKeyPad = [NSMutableData dataWithLength:CC_SHA1_BLOCK_BYTES];

const uint8_t *kdPtr = [keyData bytes];
uint8_t *okpPtr = [oKeyPad mutableBytes];
uint8_t *ikpPtr = [iKeyPad mutableBytes];

memset(okpPtr, 0x5c, CC_SHA1_BLOCK_BYTES);
memset(ikpPtr, 0x36, CC_SHA1_BLOCK_BYTES);

NSUInteger i;
for (i = 0; i < CC_SHA1_BLOCK_BYTES; i++) {
    okpPtr[i] = okpPtr[i] ^ kdPtr[i];
    ikpPtr[i] = ikpPtr[i] ^ kdPtr[i];
}

NSData *msgData = [inMessage dataUsingEncoding:NSUTF8StringEncoding];

NSMutableData *innerData = [NSMutableData dataWithData:iKeyPad];
[innerData appendData:msgData];
NSData *innerDataHashed = OFSha1(innerData);

NSMutableData *outerData = [NSMutableData dataWithData:oKeyPad];
[outerData appendData:innerDataHashed];

NSData *outerHashedData = OFSha1(outerData);


size_t outputLength;
char *outputBuffer = NewBase64Encode([outerHashedData bytes], [outerHashedData length], true, &outputLength);

NSString *result = [[[NSString alloc] initWithBytes:outputBuffer length:outputLength encoding:NSASCIIStringEncoding] autorelease];
free(outputBuffer);
return result;
}

这里我得到的错误是“canot使用类型为const值的r值初始化'const uint8_t'类型的变量”

请帮帮我。谢谢你提前。

Answer 1

有时将非弧代码转换为 arc 并不会成功。如果您的外部框架不支持ARC，最好不要尝试转换。而是为没有ARC的特定文件设置编译器标志 -fno-objc-arc 。

Flickr SDK未转换为ARC

1 个答案: