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-rw-r--r--src/eyefiservice.cc186
1 files changed, 186 insertions, 0 deletions
diff --git a/src/eyefiservice.cc b/src/eyefiservice.cc
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1#include <cassert>
2#include <iostream>
3#include <fstream>
4#include <stdexcept>
5#include <iterator>
6#include <syslog.h>
7#include <sys/wait.h>
8#include <autosprintf.h>
9#include "eyekinfig.h"
10#include "eyetil.h"
11#include "soapeyefiService.h"
12
13static bool detached_child() {
14 pid_t p = fork();
15 if(p<0) throw std::runtime_error("failed to fork()");
16 if(!p) {
17 p = fork();
18 if(p<0) {
19 syslog(LOG_ERR,"Failed to re-fork child process");
20 _exit(-1);
21 }
22 if(!p) {
23 setsid();
24 for(int i=getdtablesize();i>=0;--i) close(i);
25 int i=open("/dev/null",O_RDWR); assert(i==0);
26 i = dup(i); assert(i==1);
27 i = dup(i); assert(i==2);
28 return true;
29 }
30 _exit(0);
31 }
32 int rc;
33 if(waitpid(p,&rc,0)<0) throw std::runtime_error("failed to waitpid()");
34 if(!WIFEXITED(rc)) throw std::runtime_error("error in forked process");
35 if(WEXITSTATUS(rc)) throw std::runtime_error("forked process signalled error");
36 return false;
37}
38
39int eyefiService::StartSession(
40 std::string macaddress,std::string cnonce,
41 int transfermode,long transfermodetimestamp,
42 struct rns__StartSessionResponse &r ) {
43#ifndef NDEBUG
44 syslog(LOG_DEBUG,
45 "StartSession request from %s with cnonce=%s, transfermode=%d, transfermodetimestamp=%ld",
46 macaddress.c_str(), cnonce.c_str(), transfermode, transfermodetimestamp );
47#endif
48 r.credential = binary_t(macaddress+cnonce+eyekinfig_t(macaddress).get_upload_key()).md5().hex();
49 /* TODO: better nonce generator */
50 time_t t = time(0);
51 r.snonce = binary_t(&t,sizeof(t)).md5().hex();
52 r.transfermode=2;
53 r.transfermodetimestamp=t;
54 r.upsyncallowed=false;
55
56 std::string cmd = eyekinfig_t(macaddress).get_on_start_session();
57 if(!cmd.empty()) {
58 if(detached_child()) {
59 putenv( gnu::autosprintf("EYEFI_MACADDRESS=%s",macaddress.c_str()) );
60 putenv( gnu::autosprintf("EYEFI_TRANSFERMODE=%d",transfermode) );
61 putenv( gnu::autosprintf("EYEFI_TRANSFERMODETIMESTAMP=%ld",transfermodetimestamp) );
62 char *argv[] = { (char*)"/bin/sh", (char*)"-c", (char*)cmd.c_str(), 0 };
63 execv("/bin/sh",argv);
64 syslog(LOG_ERR,"Failed to execute '%s'",cmd.c_str());
65 _exit(-1);
66 }
67 }
68 return SOAP_OK;
69}
70
71int eyefiService::GetPhotoStatus(
72 std::string credential, std::string macaddress,
73 std::string filename, long filesize, std::string filesignature,
74 struct rns__GetPhotoStatusResponse &r ) {
75#ifndef NDEBUG
76 syslog(LOG_DEBUG,
77 "GetPhotoStatus request from %s with credential=%s, filename=%s, filesize=%ld, filesignature=%s",
78 macaddress.c_str(), credential.c_str(), filename.c_str(), filesize, filesignature.c_str() );
79#endif
80 r.fileid = 1; r.offset = 0;
81 return SOAP_OK;
82}
83
84int eyefiService::MarkLastPhotoInRoll(
85 std::string macaddress, int mergedelta,
86 struct rns__MarkLastPhotoInRollResponse &r ) {
87#ifndef NDEBUG
88 syslog(LOG_DEBUG,
89 "MarkLastPhotoInRoll request from %s with mergedelta=%d",
90 macaddress.c_str(), mergedelta );
91#endif
92 std::string cmd = eyekinfig_t(macaddress).get_on_mark_last_photo_in_roll();
93 if(!cmd.empty()) {
94 if(detached_child()) {
95 putenv( gnu::autosprintf("EYEFI_MACADDRESS=%s",macaddress.c_str()) );
96 putenv( gnu::autosprintf("EYEFI_MERGEDELTA=%d",mergedelta) );
97 char *argv[] = { (char*)"/bin/sh", (char*)"-c", (char*)cmd.c_str(), 0 };
98 execv("/bin/sh",argv);
99 syslog(LOG_ERR,"Failed to execute '%s'",cmd.c_str());
100 _exit(-1);
101 }
102 }
103 return SOAP_OK;
104}
105
106int eyefiService::UploadPhoto(
107 int fileid, std::string macaddress,
108 std::string filename, long filesize, std::string filesignature,
109 std::string encryption, int flags,
110 struct rns__UploadPhotoResponse& r ) {
111#ifndef NDEBUG
112 syslog(LOG_DEBUG,
113 "UploadPhoto request from %s with fileid=%d, filename=%s, filesize=%ld,"
114 " filesignature=%s, encryption=%s, flags=%04X",
115 macaddress.c_str(), fileid, filename.c_str(), filesize,
116 filesignature.c_str(), encryption.c_str(), flags );
117#endif
118 eyekinfig_t eyekinfig(macaddress);
119
120 umask(eyekinfig.get_umask());
121
122 std::string td = eyekinfig.get_targetdir();
123 /* TODO: try to create, if needed */
124 tmpdir_t indir(td+"/.incoming.XXXXXX");
125
126 for(soap_multipart::iterator i=mime.begin(),ie=mime.end();i!=ie;++i) {
127#ifndef NDEBUG
128 syslog(LOG_DEBUG,
129 " MIME attachment with id=%s, type=%s, size=%ld",
130 (*i).id, (*i).type, (long)(*i).size );
131#endif
132
133#ifndef NDEBUG
134 if((*i).id && !strcmp((*i).id,"INTEGRITYDIGEST")) {
135 std::string idigest((*i).ptr,(*i).size);
136 syslog(LOG_DEBUG, " INTEGRITYDIGEST=%s", idigest.c_str());
137 }
138#endif
139 if( (*i).id && !strcmp((*i).id,"FILENAME") ) {
140 assert( (*i).type && !strcmp((*i).type,"application/x-tar") );
141#ifdef III_SAVE_TARS
142 std::string tarfile = indir.get_file(filename);
143 {
144 std::ofstream(tarfile.c_str(),std::ios::out|std::ios::binary).write((*i).ptr,(*i).size);
145 }
146#endif
147 tarchive_t a((*i).ptr,(*i).size);
148 if(!a.read_next_header())
149 throw std::runtime_error("failed to tarchive_t::read_next_header())");
150 std::string jf = indir.get_file(a.entry_pathname());
151 std::string::size_type ls = jf.rfind('/');
152 std::string jbn = (ls==std::string::npos)?jf:jf.substr(ls+1);
153 int fd=open(jf.c_str(),O_CREAT|O_WRONLY,0666);
154 assert(fd>0);
155 a.read_data_into_fd(fd);
156 close(fd);
157 std::string tf = td+'/'+jbn;
158 bool success = false;
159 if(!link(jf.c_str(), tf.c_str())) {
160 unlink(jf.c_str()); success = true;
161 }else{
162 for(int i=1;i<32767;++i) {
163 tf = (const char*)gnu::autosprintf( "%s/(%05d)%s",
164 td.c_str(), i, jbn.c_str() );
165 if(!link(jf.c_str(), tf.c_str())) {
166 unlink(jf.c_str()); success = true;
167 break;
168 }
169 }
170 }
171 std::string cmd = eyekinfig.get_on_upload_photo();
172 if(success && !cmd.empty()) {
173 if(detached_child()) {
174 putenv( gnu::autosprintf("EYEFI_MACADDRESS=%s",macaddress.c_str()) );
175 putenv( gnu::autosprintf("EYEFI_UPLOADED=%s",tf.c_str()) );
176 char *argv[] = { (char*)"/bin/sh", (char*)"-c", (char*)cmd.c_str(), 0 };
177 execv("/bin/sh",argv);
178 syslog(LOG_ERR,"Failed to execute '%s'",cmd.c_str());
179 _exit(-1);
180 }
181 }
182 }
183 }
184 r.success = true;
185 return SOAP_OK;
186}