The proxy can now sit between a client and a https web server. It does this by looking for a CONNECT request that conventional proxies use to open a tunnel between a client and an https server. Instead of opening an opaque tunnel, yaip immediately sends bacck a "connection established" response. This tells the client (browser normally) to proceed and initiate an HTTPS connection. I use the host that was send in the connect request to set up a fake SSL server. If we have seen the domain before, we re-use the certificate, otherwise we generate a new one and sign it using YAIP's built in certificate authority. I still need to do work on forwarding the request upstream. This is my next job. Currently, yaip responds with a valid response of "it worked". ``` $ curl https://example.com --cacert ~/.config/yaip/cert.pem It worked ``` Notice, we don't get any certificate errors because we are telling curl to trust the authority that yaip usesmaster
Jonathan Hodgson
2 years ago
parent
1beca38af6
commit
dd71d26245
15 changed files with 337 additions and 116 deletions
@ -1,50 +0,0 @@ |
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// https://man7.org/tlpi/code/online/dist/sockets/read_line.c.html
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#include "readline.h" |
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/* Read characters from 'fd' until a newline is encountered. If a newline
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character is not encountered in the first (n - 1) bytes, then the excess |
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characters are discarded. The returned string placed in 'buf' is |
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null-terminated and includes the newline character if it was read in the |
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first (n - 1) bytes. The function return value is the number of bytes |
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placed in buffer (which includes the newline character if encountered, |
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but excludes the terminating null byte). */ |
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ssize_t fdReadLine(int fd, void *buffer, size_t n) { |
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ssize_t numRead; /* # of bytes fetched by last read() */ |
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size_t totRead; /* Total bytes read so far */ |
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char *buf; |
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char ch; |
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if (n <= 0 || buffer == NULL) { |
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errno = EINVAL; |
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return -1; |
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} |
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buf = buffer; /* No pointer arithmetic on "void *" */ |
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totRead = 0; |
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for (;;) { |
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numRead = read(fd, &ch, 1); |
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if (numRead == -1) { |
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if (errno == EINTR) /* Interrupted --> restart read() */ |
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continue; |
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else |
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return -1; /* Some other error */ |
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} else if (numRead == 0) { /* EOF */ |
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if (totRead == 0) /* No bytes read; return 0 */ |
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return 0; |
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else /* Some bytes read; add '\0' */ |
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break; |
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} else { /* 'numRead' must be 1 if we get here */ |
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if (totRead < n - 1) { /* Discard > (n - 1) bytes */ |
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totRead++; |
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*buf++ = ch; |
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} |
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if (ch == '\n') |
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break; |
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} |
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} |
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*buf = '\0'; |
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return totRead; |
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} |
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@ -1,9 +0,0 @@ |
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#ifndef READLINE_H |
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#define READLINE_H |
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#include <unistd.h> |
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#include <errno.h> |
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ssize_t fdReadLine(int fd, void *buffer, size_t n); |
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#endif /* ifndef READLINE_H */ |
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